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Returns whether this ViewGroup will clip its children to its padding, and resize but not clip any EdgeEffect to the padded region, if padding is present. Show the progress bar in your app's user interface or in a notification instead of within a dialog. Dispatches creation of a ViewStructure s for autofill purposes down the hierarchy, when an Assist structure is being created as part of an autofill request.



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Adds a child view with this ViewGroup's default layout parameters and the specified width and height. Returns the blending mode used to apply the tint to the secondary progress drawable, if specified. The scrollbar style to display the scrollbars at the edge of the view, without increasing the padding. 7 inch android phones how to unlock AnimationListener getLayoutAnimationListener Returns the animation listener to which layout animation events are sent. This is called when a container is going to temporarily detach a child, with ViewGroup.



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Return the class name of this object to be used for accessibility purposes. Measure the view and its content to determine the measured width and the measured height.







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LayoutParamsthis method is invoked. ViewPropertyAnimator animate This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View. LinearLayout added in API level Tint to apply to the progress indicator background. Return the global KeyEvent. Subclasses should override onMeasure int, int to provide better measurements of their content. When overriding this method, you must call setMeasuredDimension int, int to store the measured width and height of this view.







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24.03.2018 - A Property wrapper around the translationX functionality handled by the setTranslationX float and getTranslationX methods. Autofill type for a field that contains a date, which is represented by a long representing the number of milliseconds since the standard base time known as "the epoch", namely January 1, TabWidget Displays a list of tab labels representing each page in the parent's tab collection. Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from.









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24.02.2018 - This method is invoked by measure int, int and should be overridden by subclasses to provide accurate and efficient measurement of their contents. Use indeterminate mode for the progress bar when you do not know how long an operation will take. Duration of the indeterminate animation. Called when the user-visibility of this View is potentially affected by a change to this view itself, an ancestor view or the window this view is attached to. Returns an AccessibilityNodeInfo representing this view from the point of view of an AccessibilityService. Indicates whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent. Object getTag Returns this view's tag.









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03.03.2018 - Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range. Gets the hints that help an AutofillService determine how to autofill the view with the user's data. A Property wrapper around the alpha functionality handled by the setAlpha float and getAlpha methods. This constant was deprecated in API level Sets how to determine whether this view is important for accessibility which is if it fires accessibility events and if it is reported to accessibility services that query the screen. Generate the new Drawable state for this view. You requested a page inbut your language preference for this site is.









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22.03.2018 - Returns the size of the horizontal faded edges used to indicate that more content in this view is visible. Take a short survey? Sets the padding, in pixels, of the end edge; see padding. Grow the horizontal and vertical size of the object if needed so it completely fills its container. Override this if your view is known to always be drawn on top of a solid color background, and needs to draw fading edges.











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When screen readers one type of accessibility tool decide what should be read to the user, they typically look for input focusable isFocusable parents of non-focusable text items, and read those focusable parents and their non-focusable children as a unit.



Set whether this view should have sound effects enabled for events such as clicking and touching. Sets the horizontal location of this view relative to its left position.



Sets the vertical location of this view relative to its top position. Sets the depth location of this view relative to its elevation. Use startDragAndDrop for newer platform versions.



Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.



Causes the current thread to wait until either another thread invokes the notify method or the notifyAll method for this object, or a specified amount of time has elapsed. Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object.



A Drawable can call this to unschedule an action previously scheduled with scheduleDrawable Drawable, Runnable, long. Handles the request for sending an AccessibilityEvent given the event type. Handles the request for sending an AccessibilityEvent.



Timeout between frames of animation in milliseconds. May be an integer value, such as " ". Allows to enable the indeterminate mode. In this mode the progress bar plays an infinite looping animation.



May be a boolean value, such as " true " or " false ". Defines how the indeterminate mode should behave when the progress reaches max. Must be one of the following constant values. Drawable used for the indeterminate mode.



Duration of the indeterminate animation. Restricts to ONLY indeterminate mode state-keeping progress mode will not work. Tint to apply to the indeterminate progress indicator. May be a color value, in the form of " rgb ", " argb ", " rrggbb ", or " aarrggbb ".



Blending mode used to apply the indeterminate progress indicator tint. An optional argument to supply a maximum height for this view. May be a dimension value, which is a floating point number appended with a unit such as " An optional argument to supply a maximum width for this view.



Defines if the associated drawables need to be mirrored when in RTL mode. Defines the default progress value, between 0 and max. Tint to apply to the progress indicator background. Blending mode used to apply the progress indicator background tint.



Drawable used for the progress mode. Tint to apply to the progress indicator. Blending mode used to apply the progress indicator tint. Defines the secondary progress value, between 0 and max. This progress is drawn between the primary progress and the background.



It can be ideal for media scenarios such as showing the buffering progress while the default progress shows the play progress. Tint to apply to the secondary progress indicator.



Blending mode used to apply the secondary progress indicator tint. Dispatching to child views is handled by dispatchDrawableHotspotChanged float, float. Be sure to call through to the superclass when overriding this function.



Return the class name of this object to be used for accessibility purposes. Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from.



This is used to fill in AccessibilityNodeInfo. Get the progress bar's current level of progress. Return 0 when the progress bar is in indeterminate mode. Get the progress bar's current level of secondary progress.



Returns whether the ProgressBar is animating or not. This is essentially the same as whether the ProgressBar is indeterminate and visible, as indeterminate ProgressBars are always animating, and non-indeterminate ProgressBars are not animating.



This function will never be called with a null state. This state should only contain information that is not persistent or can not be reconstructed later. For example, you will never store your current position on screen because that will be computed again when a new instance of the view is placed in its view hierarchy.



Some examples of things you may store here: Cause an invalidate to happen on a subsequent cycle through the event loop. Use this to invalidate the View from a non-UI thread. This method can be invoked from outside of the UI thread only when this View is attached to a window.



Change the indeterminate mode for this progress bar. In indeterminate mode, the progress is ignored and the progress bar shows an infinite animation instead. Define the tileable drawable used to draw the progress bar in indeterminate mode.



If the drawable is a BitmapDrawable or contains BitmapDrawables, a tiled copy will be generated for display as a progress bar. Applies a tint to the indeterminate drawable. Subsequent calls to setIndeterminateDrawable Drawable will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList.



Sets the acceleration curve for the indeterminate animation. Defaults to a linear interpolation. The interpolator is loaded as a resource from the specified context. Sets the current progress to the specified value.



Does not do anything if the progress bar is in indeterminate mode. This method will immediately update the visual position of the progress indicator. Animation does not affect the result of getProgress, which will return the target value immediately after this method is called.



Applies a tint to the progress background, if one exists. The progress background must be specified as a layer with id background in a LayerDrawable used as the progress drawable.



Subsequent calls to setProgressDrawable Drawable where the drawable contains a progress background will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList.



Define the tileable drawable used to draw the progress bar in progress mode. The progress indicator should be specified as a layer with id progress in a LayerDrawable used as the progress drawable.



Subsequent calls to setProgressDrawable Drawable will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList. Set the current secondary progress to the specified value.



Applies a tint to the secondary progress indicator, if one exists. The secondary progress indicator must be specified as a layer with id secondaryProgress in a LayerDrawable used as the progress drawable.



Subsequent calls to setProgressDrawable Drawable where the drawable contains a secondary progress indicator will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList.



If the View has a StateListAnimator, it will also be called to run necessary state change animations. This is called when the view is attached to a window. At this point it has a Surface and will start drawing.



Note that this function is guaranteed to be called before onDraw android. Canvas, however it may be called any time before the first onDraw -- including before or after onMeasure int, int.



This is called when the view is detached from a window. At this point it no longer has a surface for drawing. Measure the view and its content to determine the measured width and the measured height.



This method is invoked by measure int, int and should be overridden by subclasses to provide accurate and efficient measurement of their contents. When overriding this method, you must call setMeasuredDimension int, int to store the measured width and height of this view.



Failure to do so will trigger an IllegalStateException, thrown by measure int, int. Calling the superclass' onMeasure int, int is a valid use. The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec.



Subclasses should override onMeasure int, int to provide better measurements of their content. If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width getSuggestedMinimumHeight and getSuggestedMinimumWidth.



This is called during layout when the size of this view has changed. If you were just added to the view hierarchy, you're called with the old values of 0. This allows animations for those drawables to be scheduled.



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This doc is hidden because your selected API level for the documentation is. You can change the documentation API level with the selector above the left navigation. Class Index Package Index android android.



ProgressBar public class ProgressBar extends View java. OnLayoutChangeListener listener Add a listener that will be called when the bounds of the view change due to layout processing.



ViewPropertyAnimator animate This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View. WindowInsets dispatchApplyWindowInsets WindowInsets insets Request to apply the given window insets to this view or another view in its subtree.



View findFocus Find the view in the hierarchy rooted at this view that currently has focus. View focusSearch int direction Find the nearest view in the specified direction that can take focus.



CharSequence getAccessibilityClassName Return the class name of this object to be used for accessibility purposes. AccessibilityNodeProvider getAccessibilityNodeProvider Gets the provider for managing a virtual view hierarchy rooted at this View and reported to AccessibilityService s that explore the window content.



Animation getAnimation Get the animation currently associated with this view. IBinder getApplicationWindowToken Retrieve a unique token identifying the top-level "real" window of the window that this view is attached to.



String[] getAutofillHints Gets the hints that help an AutofillService determine how to autofill the view with the user's data. Mode getBackgroundTintMode Return the blending mode used to apply the tint to the background drawable, if specified.



Rect getClipBounds Returns a copy of the current clipBounds. ContextMenuInfo getContextMenuInfo Views should implement this if they have extra information to associate with the context menu.



Display getDisplay Gets the logical display to which the view's window has been attached. Drawable getForeground Returns the drawable used as the foreground of this View.



Mode getForegroundTintMode Return the blending mode used to apply the tint to the foreground drawable, if specified. Handler getHandler final boolean getHasOverlappingRendering Returns the value for overlapping rendering that is used internally.



Matrix getMatrix The transform matrix of this view, which is calculated based on the current rotation, scale, and pivot properties. ViewOverlay getOverlay Returns the overlay for this view, creating it if it does not yet exist.



PointerIcon getPointerIcon Gets the pointer icon for the current view. Resources getResources Returns the resources associated with this view. View getRootView Finds the topmost view in the current view hierarchy.



Object getTag Returns this view's tag. Object getTag int key Returns the tag associated with this view and the specified key. CharSequence getTooltipText Returns the view's tooltip text. IBinder getWindowToken Retrieve a unique token identifying the window this view is attached to.



View keyboardNavigationClusterSearch View currentCluster, int direction Find the nearest keyboard navigation cluster in the specified direction. PointerIcon onResolvePointerIcon MotionEvent event, int pointerIndex Returns the pointer icon for the motion event, or null if it doesn't specify the icon.



Parcelable onSaveInstanceState Hook allowing a view to generate a representation of its internal state that can later be used to create a new instance with that same state. Provide haptic feedback to the user for this view.



OnLayoutChangeListener listener Remove a listener for layout changes. AccessibilityDelegate delegate Sets a delegate for implementing accessibility support via composition as opposed to inheritance.



LayoutParams params Set the layout parameters associated with this view. OnCapturedPointerListener l Set a listener to receive callbacks when the pointer capture state of a view changes.



OnClickListener l Register a callback to be invoked when this view is clicked. OnContextClickListener l Register a callback to be invoked when this view is context clicked. OnCreateContextMenuListener l Register a callback to be invoked when the context menu for this view is being built.



OnDragListener l Register a drag event listener callback object for this View. OnFocusChangeListener l Register a callback to be invoked when focus of this view changed.



OnGenericMotionListener l Register a callback to be invoked when a generic motion event is sent to this view. OnHoverListener l Register a callback to be invoked when a hover event is sent to this view.



OnKeyListener l Register a callback to be invoked when a hardware key is pressed in this view. OnLongClickListener l Register a callback to be invoked when this view is clicked and held.



OnSystemUiVisibilityChangeListener l Set a listener to receive callbacks when the visibility of the system bar changes. OnTouchListener l Register a callback to be invoked when a touch event is sent to this view.



Callback callback, int type Start an action mode with the given type. String toString Returns a string representation of the object. DragShadowBuilder shadowBuilder Updates the drag shadow for the ongoing drag and drop operation.



Object clone Creates and returns a copy of this object. ProgressBar added in API level 1. ProgressBar added in API level This site uses cookies to store your preferences for site-specific language and display options.



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Help us improve the Android developer experience. AbsSeekBar extends the capabilities of ProgressBar by adding a draggable thumb. A SeekBar is an extension of ProgressBar that adds a draggable thumb.



Indicates to accessibility services whether the user should be notified when this view changes. Sets the id of a view after which this one is visited in accessibility traversal. Sets the id of a view before which this one is visited in accessibility traversal.



Describes the content of a view so that a autofill service can fill in the appropriate data. When this attribute is set to true, the view gets its drawable state focused, pressed, etc. Specifies whether to filter touches when the view's window is obscured by another visible window.



Boolean internal attribute to adjust view layout based on system windows such as the status bar. Boolean that controls whether a view can take focus while in touch mode.



Boolean that controls whether a view should have haptic feedback enabled for events such as long presses. Supply an identifier name for this view, to later retrieve it with View. Describes whether or not this view is important for accessibility.



Hints the Android System whether the view node associated with this View should be included in a view structure used for autofill purposes. Set this if the view will serve as a scrolling container, meaning that it can be resized to shrink its overall window so that there will be space for an input method.



Controls whether the view's window should keep the screen on while visible. Name of the method in this View's context to invoke when the view is clicked. Sets the padding, in pixels, of the bottom edge; see padding.



Sets the padding, in pixels, of the end edge; see padding. Sets the padding, in pixels, of the left and right edges; see padding. Sets the padding, in pixels, of the left edge; see padding.



Sets the padding, in pixels, of the right edge; see padding. Sets the padding, in pixels, of the start edge; see padding. Sets the padding, in pixels, of the top edge; see padding.



Sets the padding, in pixels, of the top and bottom edges; see padding. If false, no state will be saved for this view when it is being frozen. Defines which scroll indicators should be displayed when the view can be scrolled.



Defines whether the horizontal scrollbar track should always be drawn. Defines whether the vertical scrollbar track should always be drawn. Defines the delay in milliseconds that a scrollbar waits before fade out.



Defines the delay in milliseconds that a scrollbar takes to fade out. Sets the width of vertical scrollbars and height of horizontal scrollbars. Boolean that controls whether a view should have sound effects enabled for events such as clicking and touching.



Supply a tag for this view containing a String, to be retrieved later with View. Defines text displayed in a small popup window on hover or long press. GONE This view is invisible, and it doesn't take any space for layout purposes.



X A Property wrapper around the x functionality handled by the setX float and getX methods. Y A Property wrapper around the y functionality handled by the setY float and getY methods.



Z A Property wrapper around the z functionality handled by the setZ float and getZ methods. ProgressBar Context context Create a new progress bar with range ProgressBar Context context, AttributeSet attrs.



Combines the tint and drawable color and alpha channels, clamping the result to valid color values. Multiplies the color and alpha channels of the drawable with those of the tint.



React to an accessibility action delegated by a target descendant view before the target processes it. Subclasses should always call super. Look for a descendant to call requestFocus on.



Called when a child has requested sending an AccessibilityEvent and gives an opportunity to its parent to augment the event. React to a descendant view initiating a nestable scroll operation, claiming the nested scroll operation if appropriate.



Called by a ViewGroup subclass to remove child views from itself, when it must first know its size on screen before it can calculate how many child views it will render. Canvas, onDraw android.



Canvas, dispatchDraw android. Canvas or any related method. Called when a child of this group wants a particular rectangle to be positioned onto the screen. Called when a child does not want this parent and its ancestors to intercept touch events with onInterceptTouchEvent MotionEvent.



Call this to try to give focus to a specific view or to one of its descendants and give it hints about the direction and a specific rectangle that the focus is coming from. Looks for a view to give focus to respecting the setting specified by getDescendantFocusability.



Called by a child to request from its parent to send an AccessibilityEvent. Called when a child wants the view hierarchy to gather and report transparent regions to the window compositor. Tells the ViewGroup whether to draw its children in the order defined by the method getChildDrawingOrder int, int.



Sets whether this ViewGroup will clip its children to its padding and resize but not clip any EdgeEffect to the padded region, if padding is present. Sets the layout animation controller used to animate the group's children after the first layout.



Enable or disable the splitting of MotionEvents to multiple children during touch event dispatch. When this property is set to true, this ViewGroup supports static transformations on children; this causes getChildStaticTransformation View, android.



Transformation to be invoked when a child is drawn. Changes whether or not this ViewGroup should be treated as a single entity during Activity Transitions. Shows the context menu for the specified view or its ancestors anchored to the specified view-relative coordinate.



This method tells the ViewGroup that the given View object, which should have this ViewGroup as its parent, should be kept around re-displayed when the ViewGroup draws its children even if it is removed from its parent.



Adds extra data to an AccessibilityNodeInfo based on an explicit request for the additional data. Add any focusable views that are descendants of this view possibly including this view if it is focusable itself to views.



Adds a listener which will receive unhandled KeyEvent s. This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View. Called by the InputMethodManager when a view who is not the current input connection target is trying to make a call on the manager.



Merge two states as returned by getMeasuredState. Compute the horizontal extent of the horizontal scrollbar's thumb within the horizontal range. Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range.



Called by a parent to request that a child update its values for mScrollX and mScrollY if necessary. Compute insets that should be consumed by this view and the ones that should propagate to those under it.



Returns an AccessibilityNodeInfo representing this view from the point of view of an AccessibilityService. Dispatches an AccessibilityEvent to the View first and then to its children for adding their text content to the event.



This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view. OnApplyWindowInsetsListener to implement handling their own insets.



Sets the behavior for overlapping rendering for this view see hasOverlappingRendering for more details on this behavior. Generate a value suitable for use in setId int. Gets the provider for managing a virtual view hierarchy rooted at this View and reported to AccessibilityService s that explore the window content.



Retrieve a unique token identifying the top-level "real" window of the window that this view is attached to. Gets the hints that help an AutofillService determine how to autofill the view with the user's data.



Describes the autofill type of this view, so an AutofillService can create the proper AutofillValue when autofilling the view. Gets the View 's current autofill value. Populates an output rectangle with the clip bounds of the view, returning true if successful or false if the view's clip bounds are null.



Returns a copy of the current clipBounds. Returns the View 's content description. Returns the context the view is running in, through which it can access the current theme, resources, etc.



Return an array of resource IDs of the drawable states representing the current state of the view. Gets whether the framework should discard touches when the view's window is obscured by another visible window.



Check for state of setFitsSystemWindows boolean. Find and return all focusable views that are descendants of this view, possibly including this view if it is focusable itself.



When a view has focus and the user navigates away from it, the next view is searched for starting from the rectangle filled in by this method. If some part of this view is not clipped by any of its parents, then return that area in r in global root coordinates.



Returns the size of the horizontal faded edges used to indicate that more content in this view is visible. Return the global KeyEvent. DispatcherState for this view's window. The transform matrix of this view, which is calculated based on the current rotation, scale, and pivot properties.



Return the full height measurement information for this view as computed by the most recent call to measure int, int. Return the full width measurement information for this view as computed by the most recent call to measure int, int.



Returns the current ViewOutlineProvider of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping. The x location of the point around which the view is rotated and scaled.



The y location of the point around which the view is rotated and scaled. The amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.



The amount that the view is scaled in y around the pivot point, as a proportion of the view's unscaled height. Override this if your view is known to always be drawn on top of a solid color background, and needs to draw fading edges.



Returns the last setSystemUiVisibility int that this view has requested. Find and return all touchable views that are descendants of this view, possibly including this view if it is touchable itself.



The horizontal location of this view relative to its left position. The vertical location of this view relative to its top position. The depth location of this view relative to its elevation.



Returns the size of the vertical faded edges used to indicate that more content in this view is visible. Retrieve the WindowId for the window this view is currently attached to.



Retrieve the overall visible display size in which the window this view is attached to has been positioned in. Returns true if this view is focusable or if it contains a reachable View for which hasExplicitFocusable returns true.



Returns true if this view is focusable or if it contains a reachable View for which hasFocusable returns true. The switch to hardware accelerated rendering in API 14 reduced the importance of the dirty rectangle.



In API 21 the given rectangle is ignored entirely in favor of an internally-calculated area instead. Because of this, clients are encouraged to just call invalidate. Called to rebuild this View's Outline from its outline provider.



Returns whether this View should receive focus when the focus is restored for the view hierarchy containing this view. Hints the Android System whether the AssistStructure.



ViewNode associated with this view is considered important for autofill purposes. Returns true if this view has been through at least one layout since it was last attached to or detached from a window.



Indicates whether or not this view's layout will be requested during the next hierarchy layout pass. If the View draws content inside its padding and enables fading edges, it needs to support padding offsets.



Return if the padding has been set through relative values setPaddingRelative int, int, int, int or through. Indicates whether this view will save its state that is, whether its onSaveInstanceState method will be called.



Indicates whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent. Returns whether the view should be treated as a focusable unit by screen reader accessibility tools.



Merge your own state values in additionalState into the base state values baseState that were returned by onCreateDrawableState int. Invoked by a parent ViewGroup to notify the end of the animation currently associated with this view.



Invoked by a parent ViewGroup to notify the start of the animation currently associated with this view. Called when the view should apply WindowInsets according to its internal policy. Called as the result of a call to cancelPendingInputEvents on this view or a parent view.



Check whether the called view is a text editor, in which case it would make sense to automatically display a soft input window for it. Called when the current configuration of the resources being used by the application have changed.



Handles drag events sent by the system following a call to startDragAndDrop. Called after onStartTemporaryDetach when the container is done changing the view. Initializes an AccessibilityEvent with information about this View which is the event source.



Initializes an AccessibilityNodeInfo with information about this view. Default implementation of KeyEvent. Allows this view to handle KeyEvent s which weren't handled by normal dispatch.



Handle a key event before it is processed by any input method associated with the view hierarchy. Called by overScrollBy int, int, int, int, int, int, int, int, boolean to respond to the results of an over-scroll operation.



Called from dispatchPopulateAccessibilityEvent AccessibilityEvent giving a chance to this View to populate the accessibility event with its text content. Populates a ViewStructure to fullfil an autofill request.



Populates a ViewStructure containing virtual children to fullfil an autofill request. Called when assist structure is being retrieved from a view as part of Activity. Hook allowing a view to re-apply a representation of its internal state that had previously been generated by onSaveInstanceState.



Hook allowing a view to generate a representation of its internal state that can later be used to create a new instance with that same state. This is called in response to an internal scroll in this view i.



This is called when a container is going to temporarily detach a child, with ViewGroup. Called when the user-visibility of this View is potentially affected by a change to this view itself, an ancestor view or the window this view is attached to.



Override to find out when the window's requested system UI visibility has changed, that is the value returned by getWindowSystemUiVisibility. Like performHapticFeedback int, with additional options.



Causes the Runnable to be added to the message queue, to be run after the specified amount of time elapses. Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop.



Cause an invalidate of the specified area to happen on the next animation time step, typically the next display frame. Cause an invalidate to happen on the next animation time step, typically the next display frame.



Causes the Runnable to execute on the next animation time step, after the specified amount of time elapses. Removes a listener which will receive unhandled KeyEvent s. Use requestApplyInsets for newer platform versions.



Call this to try to give focus to a specific view or to one of its descendants and give it a hint about what direction focus is heading. Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough.



Finds the first descendant view with the given ID, the view itself if the ID matches getId, or throws an IllegalArgumentException if the ID is invalid or there is no matching view in the hierarchy.



This method behaves exactly as sendAccessibilityEvent int but takes as an argument an empty AccessibilityEvent and does not perform a check whether accessibility is enabled. Sets a delegate for implementing accessibility support via composition as opposed to inheritance.



If this view is a visually distinct portion of a window, for example the content view of a fragment that is replaced, it is considered a pane for accessibility purposes. Sets the opacity of the view to a value from 0 to 1, where 0 means the view is completely transparent and 1 means the view is completely opaque.



Sets the hints that help an AutofillService determine how to autofill the view with the user's data. Sets the View 's content description. Sets whether the framework should discard touches when the view's window is obscured by another visible window.



Sets whether or not this view should account for system screen decorations such as the status bar and inset its content; that is, controlling whether the default implementation of fitSystemWindows Rect will be executed.



Sets whether this View should receive focus when the focus is restored for the view hierarchy containing this view. Set whether this view is currently tracking transient state that the framework should attempt to preserve when possible.



Sets how to determine whether this view is important for accessibility which is if it fires accessibility events and if it is reported to accessibility services that query the screen.



This method must be called by onMeasure int, int to store the measured width and measured height. OnApplyWindowInsetsListener to take over the policy for applying window insets to this view. Sets the color of the ambient shadow that is drawn when the view has a positive Z or elevation value.



Sets the ViewOutlineProvider of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping. Sets the color of the spot shadow that is drawn when the view has a positive Z or elevation value.



Sets the x location of the point around which the view is rotated and scaled. Sets the y location of the point around which the view is rotated and scaled.



Controls whether the saving of this view's state is enabled that is, whether its onSaveInstanceState method will be called. Controls whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent.



Sets the amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width. Sets the amount that the view is scaled in Y around the pivot point, as a proportion of the view's unscaled width.



When screen readers one type of accessibility tool decide what should be read to the user, they typically look for input focusable isFocusable parents of non-focusable text items, and read those focusable parents and their non-focusable children as a unit.



Set whether this view should have sound effects enabled for events such as clicking and touching. Sets the horizontal location of this view relative to its left position. Sets the vertical location of this view relative to its top position.



Sets the depth location of this view relative to its elevation. Use startDragAndDrop for newer platform versions. If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying.



Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.



Causes the current thread to wait until either another thread invokes the notify method or the notifyAll method for this object, or a specified amount of time has elapsed. Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object.



Have the parent populate the specified context menu if it has anything to add and then recurse on its parent. Use onDescendantInvalidated View, View instead. Ask that a new dispatch of View. Called when something has changed which has invalidated the layout of a child of this view parent.



A Drawable can call this to unschedule an action previously scheduled with scheduleDrawable Drawable, Runnable, long. Handles the request for sending an AccessibilityEvent given the event type. Handles the request for sending an AccessibilityEvent.



When set to false, prevents the layout from aligning its children's baselines. This attribute is particularly useful when the children use different values for gravity. The default value is true.



May be a boolean value, such as " true " or " false ". When a linear layout is part of another layout that is baseline aligned, it can specify which of its children to baseline align to that is, which child TextView.



May be an integer value, such as " ". Drawable to use as a vertical divider between buttons. May be a color value, in the form of " rgb ", " argb ", " rrggbb ", or " aarrggbb ". Specifies how an object should position its content, on both the X and Y axes, within its own bounds.



Must be one or more separated by ' ' of the following constant values. If false, all children are measured normally. Should the layout be a column or a row? Use "horizontal" for a row, "vertical" for a column.



The default is horizontal. Must be one of the following constant values. Defines the maximum weight sum. May be a floating point value, such as " 1. Return the class name of this object to be used for accessibility purposes.



Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from.



This is used to fill in AccessibilityNodeInfo. Return the offset of the widget's text baseline from the widget's top boundary. If this widget does not support baseline alignment, this method returns Returns the current gravity.



Subclasses need to override this method to take care of cached information that depends on the resolved layout direction, or to inform child views that inherit their layout direction.



The default implementation does nothing. Set padding displayed on both ends of dividers. For a vertical layout, the padding is applied to left and right end of dividers.



For a horizontal layout, the padding is applied to top and bottom end of dividers. Describes how the child views are positioned. Defines the desired weights sum. Generally, this should be done for containers that can scroll, such as a List.



This prevents the pressed state from appearing when the user is actually trying to scroll the content. The default implementation returns true for compatibility reasons.



Subclasses that do not scroll should generally override this method and return false. Returns a safe set of layout parameters based on the supplied layout params. When a ViewGroup is passed a View whose layout params do not pass the test of checkLayoutParams android.



LayoutParams, this method is invoked. This method should return a new set of layout params suitable for this ViewGroup, possibly by copying the appropriate attributes from the specified set of layout params.



Called from layout when this view should assign a size and position to each of its children. Derived classes with children should override this method and call layout on each of their children.



Measure the view and its content to determine the measured width and the measured height. This method is invoked by measure int, int and should be overridden by subclasses to provide accurate and efficient measurement of their contents.



When overriding this method, you must call setMeasuredDimension int, int to store the measured width and height of this view. Failure to do so will trigger an IllegalStateException, thrown by measure int, int.



Calling the superclass' onMeasure int, int is a valid use. The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec.



Subclasses should override onMeasure int, int to provide better measurements of their content. If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width getSuggestedMinimumHeight and getSuggestedMinimumWidth.



You have successfully signed up for the latest Android developer news and tips. You requested a page in, but your language preference for this site is. Would you like to change your language preference and browse this site in?



If you want to change your language preference later, use the language menu at the bottom of each page. This doc is hidden because your selected API level for the documentation is.



You can change the documentation API level with the selector above the left navigation. Class Index Package Index android android. NumberPicker A widget that enables the user to select a number from a predefined range.



RadioGroup This class is used to create a multiple-exclusion scope for a set of radio buttons. LayoutParams params Adds a child view with the specified layout parameters. LayoutParams params, boolean preventRequestLayout Adds a view during layout.



LayoutParams params Adds a view during layout. LayoutParams params, int index, int count Subclasses should override this method to set layout animation parameters on the supplied child. LayoutParams params Attaches a view to this view group.



LayoutParams p void childDrawableStateChanged View child If addStatesFromChildren is true, refreshes this group's drawable state to include the states from its children. WindowInsets dispatchApplyWindowInsets WindowInsets insets Request to apply the given window insets to this view or another view in its subtree.



View findFocus Find the view in the hierarchy rooted at this view that currently has focus. View focusSearch View focused, int direction Find the nearest view in the specified direction that wants to take focus.



LayoutParams generateLayoutParams AttributeSet attrs Returns a new set of layout parameters based on the supplied attributes set.



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24.02.2018 - Sets whether this ViewGroup will clip its children to its padding and resize but not clip any EdgeEffect to the padded region, if padding is present. Defines whether a child is limited to draw inside of its bounds or not. Returns whether the ProgressBar is animating or not. Oneplus 5t geek bench for os x tiger - Clean rap s... The y location of the point around which the view is rotated and scaled. Have the parent populate the specified context menu if it has anything to add and then recurse on its parent.





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31.01.2018 - Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop. Describes how the child views are positioned. Zte axon s7 4450d sym eternal affection deluxe - Q... You requested a page inbut your language preference for this site is. Indicates whether the ViewGroup is drawing its children in the order defined by getChildDrawingOrder int, int.





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12.02.2018 - Defines the relationship between the ViewGroup and its descendants when looking for a View to take focus. When a view has focus and the user navigates away from it, the next view is searched for starting from the rectangle filled in by this method. Handles the request for sending an AccessibilityEvent given the event type. Oneplus 5t 4k video of the san antonio - Bit onepl... Sets the padding, in pixels, of the left edge; see padding. Controls whether the saving of this view's state is enabled that is, whether its onSaveInstanceState method will be called.



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Return the global KeyEvent. DispatcherState for this view's window. The transform matrix of this view, which is calculated based on the current rotation, scale, and pivot properties. Return the full height measurement information for this view as computed by the most recent call to measure int, int.



Return the full width measurement information for this view as computed by the most recent call to measure int, int. Returns the current ViewOutlineProvider of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping.



The x location of the point around which the view is rotated and scaled. The y location of the point around which the view is rotated and scaled. The amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.



The amount that the view is scaled in y around the pivot point, as a proportion of the view's unscaled height. Override this if your view is known to always be drawn on top of a solid color background, and needs to draw fading edges.



Returns the last setSystemUiVisibility int that this view has requested. Find and return all touchable views that are descendants of this view, possibly including this view if it is touchable itself.



The horizontal location of this view relative to its left position. The vertical location of this view relative to its top position. The depth location of this view relative to its elevation.



Returns the size of the vertical faded edges used to indicate that more content in this view is visible. Retrieve the WindowId for the window this view is currently attached to.



Retrieve the overall visible display size in which the window this view is attached to has been positioned in. Returns true if this view is focusable or if it contains a reachable View for which hasExplicitFocusable returns true.



Returns true if this view is focusable or if it contains a reachable View for which hasFocusable returns true. Indicates whether the view is currently tracking transient state that the app should not need to concern itself with saving and restoring, but that the framework should take special note to preserve when possible.



The switch to hardware accelerated rendering in API 14 reduced the importance of the dirty rectangle. In API 21 the given rectangle is ignored entirely in favor of an internally-calculated area instead.



Because of this, clients are encouraged to just call invalidate. Called to rebuild this View's Outline from its outline provider. Returns whether this View should receive focus when the focus is restored for the view hierarchy containing this view.



Hints the Android System whether the AssistStructure. ViewNode associated with this view is considered important for autofill purposes. Returns true if this view has been through at least one layout since it was last attached to or detached from a window.



Indicates whether or not this view's layout will be requested during the next hierarchy layout pass. If the View draws content inside its padding and enables fading edges, it needs to support padding offsets.



Return if the padding has been set through relative values setPaddingRelative int, int, int, int or through. Indicates whether this view will save its state that is, whether its onSaveInstanceState method will be called.



Indicates whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent. Returns whether the view should be treated as a focusable unit by screen reader accessibility tools.



Assign a size and position to a view and all of its descendants This is the second phase of the layout mechanism. Merge your own state values in additionalState into the base state values baseState that were returned by onCreateDrawableState int.



Invoked by a parent ViewGroup to notify the end of the animation currently associated with this view. Invoked by a parent ViewGroup to notify the start of the animation currently associated with this view.



Called when the view should apply WindowInsets according to its internal policy. Called as the result of a call to cancelPendingInputEvents on this view or a parent view.



Check whether the called view is a text editor, in which case it would make sense to automatically display a soft input window for it. Called when the current configuration of the resources being used by the application have changed.



Generate the new Drawable state for this view. Handles drag events sent by the system following a call to startDragAndDrop. Called after onStartTemporaryDetach when the container is done changing the view.



Initializes an AccessibilityEvent with information about this View which is the event source. Initializes an AccessibilityNodeInfo with information about this view. Default implementation of KeyEvent.



Allows this view to handle KeyEvent s which weren't handled by normal dispatch. Handle a key event before it is processed by any input method associated with the view hierarchy.



Called by overScrollBy int, int, int, int, int, int, int, int, boolean to respond to the results of an over-scroll operation. Called from dispatchPopulateAccessibilityEvent AccessibilityEvent giving a chance to this View to populate the accessibility event with its text content.



Populates a ViewStructure to fullfil an autofill request. Populates a ViewStructure containing virtual children to fullfil an autofill request. Called when assist structure is being retrieved from a view as part of Activity.



Called when any RTL property layout direction or text direction or text alignment has been changed. This is called in response to an internal scroll in this view i. This is called when a container is going to temporarily detach a child, with ViewGroup.



Override to find out when the window's requested system UI visibility has changed, that is the value returned by getWindowSystemUiVisibility. Like performHapticFeedback int, with additional options.



Causes the Runnable to be added to the message queue, to be run after the specified amount of time elapses. Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop.



Cause an invalidate of the specified area to happen on the next animation time step, typically the next display frame. Cause an invalidate to happen on the next animation time step, typically the next display frame.



Causes the Runnable to execute on the next animation time step, after the specified amount of time elapses. Removes a listener which will receive unhandled KeyEvent s. This method was deprecated in API level Use requestApplyInsets for newer platform versions.



Call this to try to give focus to a specific view or to one of its descendants and give it a hint about what direction focus is heading. Call this to try to give focus to a specific view or to one of its descendants and give it hints about the direction and a specific rectangle that the focus is coming from.



Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough. Finds the first descendant view with the given ID, the view itself if the ID matches getId, or throws an IllegalArgumentException if the ID is invalid or there is no matching view in the hierarchy.



This method behaves exactly as sendAccessibilityEvent int but takes as an argument an empty AccessibilityEvent and does not perform a check whether accessibility is enabled.



Sets a delegate for implementing accessibility support via composition as opposed to inheritance. If this view is a visually distinct portion of a window, for example the content view of a fragment that is replaced, it is considered a pane for accessibility purposes.



Sets the opacity of the view to a value from 0 to 1, where 0 means the view is completely transparent and 1 means the view is completely opaque. Sets the hints that help an AutofillService determine how to autofill the view with the user's data.



Sets the View 's content description. Sets whether the framework should discard touches when the view's window is obscured by another visible window. Sets whether or not this view should account for system screen decorations such as the status bar and inset its content; that is, controlling whether the default implementation of fitSystemWindows Rect will be executed.



Sets whether this View should receive focus when the focus is restored for the view hierarchy containing this view. Set whether this view is currently tracking transient state that the framework should attempt to preserve when possible.



Sets how to determine whether this view is important for accessibility which is if it fires accessibility events and if it is reported to accessibility services that query the screen.



This method must be called by onMeasure int, int to store the measured width and measured height. OnApplyWindowInsetsListener to take over the policy for applying window insets to this view.



Sets the color of the ambient shadow that is drawn when the view has a positive Z or elevation value. Sets the ViewOutlineProvider of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping.



Sets the color of the spot shadow that is drawn when the view has a positive Z or elevation value. Sets the x location of the point around which the view is rotated and scaled. Sets the y location of the point around which the view is rotated and scaled.



Controls whether the saving of this view's state is enabled that is, whether its onSaveInstanceState method will be called. Controls whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent.



Sets the amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width. Sets the amount that the view is scaled in Y around the pivot point, as a proportion of the view's unscaled width.



When screen readers one type of accessibility tool decide what should be read to the user, they typically look for input focusable isFocusable parents of non-focusable text items, and read those focusable parents and their non-focusable children as a unit.



Set whether this view should have sound effects enabled for events such as clicking and touching. Sets the horizontal location of this view relative to its left position. Sets the vertical location of this view relative to its top position.



Sets the depth location of this view relative to its elevation. Use startDragAndDrop for newer platform versions. Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.



Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.



Causes the current thread to wait until either another thread invokes the notify method or the notifyAll method for this object, or a specified amount of time has elapsed.



Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object. A Drawable can call this to unschedule an action previously scheduled with scheduleDrawable Drawable, Runnable, long.



Handles the request for sending an AccessibilityEvent given the event type. Handles the request for sending an AccessibilityEvent. Timeout between frames of animation in milliseconds.



May be an integer value, such as " ". Allows to enable the indeterminate mode. In this mode the progress bar plays an infinite looping animation. May be a boolean value, such as " true " or " false ".



Defines how the indeterminate mode should behave when the progress reaches max. Must be one of the following constant values. Drawable used for the indeterminate mode.



Duration of the indeterminate animation. Restricts to ONLY indeterminate mode state-keeping progress mode will not work. Tint to apply to the indeterminate progress indicator. May be a color value, in the form of " rgb ", " argb ", " rrggbb ", or " aarrggbb ".



Blending mode used to apply the indeterminate progress indicator tint. An optional argument to supply a maximum height for this view. May be a dimension value, which is a floating point number appended with a unit such as " An optional argument to supply a maximum width for this view.



Defines if the associated drawables need to be mirrored when in RTL mode. Defines the default progress value, between 0 and max. Tint to apply to the progress indicator background. Blending mode used to apply the progress indicator background tint.



Drawable used for the progress mode. Tint to apply to the progress indicator. Blending mode used to apply the progress indicator tint. Defines the secondary progress value, between 0 and max.



This progress is drawn between the primary progress and the background. It can be ideal for media scenarios such as showing the buffering progress while the default progress shows the play progress.



Tint to apply to the secondary progress indicator. Blending mode used to apply the secondary progress indicator tint. Dispatching to child views is handled by dispatchDrawableHotspotChanged float, float.



Be sure to call through to the superclass when overriding this function. Return the class name of this object to be used for accessibility purposes. Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from.



This is used to fill in AccessibilityNodeInfo. Get the progress bar's current level of progress. Return 0 when the progress bar is in indeterminate mode. Get the progress bar's current level of secondary progress.



Returns whether the ProgressBar is animating or not. This is essentially the same as whether the ProgressBar is indeterminate and visible, as indeterminate ProgressBars are always animating, and non-indeterminate ProgressBars are not animating.



This function will never be called with a null state. This state should only contain information that is not persistent or can not be reconstructed later. For example, you will never store your current position on screen because that will be computed again when a new instance of the view is placed in its view hierarchy.



Some examples of things you may store here: Cause an invalidate to happen on a subsequent cycle through the event loop. Use this to invalidate the View from a non-UI thread.



This method can be invoked from outside of the UI thread only when this View is attached to a window. Change the indeterminate mode for this progress bar. In indeterminate mode, the progress is ignored and the progress bar shows an infinite animation instead.



Define the tileable drawable used to draw the progress bar in indeterminate mode. If the drawable is a BitmapDrawable or contains BitmapDrawables, a tiled copy will be generated for display as a progress bar.



Applies a tint to the indeterminate drawable. Subsequent calls to setIndeterminateDrawable Drawable will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList.



Sets the acceleration curve for the indeterminate animation. Defaults to a linear interpolation. The interpolator is loaded as a resource from the specified context. Sets the current progress to the specified value.



Does not do anything if the progress bar is in indeterminate mode. This method will immediately update the visual position of the progress indicator. Animation does not affect the result of getProgress, which will return the target value immediately after this method is called.



Applies a tint to the progress background, if one exists. The progress background must be specified as a layer with id background in a LayerDrawable used as the progress drawable.



Subsequent calls to setProgressDrawable Drawable where the drawable contains a progress background will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList.



Define the tileable drawable used to draw the progress bar in progress mode. The progress indicator should be specified as a layer with id progress in a LayerDrawable used as the progress drawable.



Subsequent calls to setProgressDrawable Drawable will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList.



Set the current secondary progress to the specified value. Applies a tint to the secondary progress indicator, if one exists. The secondary progress indicator must be specified as a layer with id secondaryProgress in a LayerDrawable used as the progress drawable.



Subsequent calls to setProgressDrawable Drawable where the drawable contains a secondary progress indicator will automatically mutate the drawable and apply the specified tint and tint mode using setTintList ColorStateList.



If the View has a StateListAnimator, it will also be called to run necessary state change animations. This is called when the view is attached to a window. At this point it has a Surface and will start drawing.



Note that this function is guaranteed to be called before onDraw android. Canvas, however it may be called any time before the first onDraw -- including before or after onMeasure int, int.



This is called when the view is detached from a window. At this point it no longer has a surface for drawing. Measure the view and its content to determine the measured width and the measured height.



This method is invoked by measure int, int and should be overridden by subclasses to provide accurate and efficient measurement of their contents. When overriding this method, you must call setMeasuredDimension int, int to store the measured width and height of this view.



Failure to do so will trigger an IllegalStateException, thrown by measure int, int. Calling the superclass' onMeasure int, int is a valid use. The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec.



Subclasses should override onMeasure int, int to provide better measurements of their content. If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width getSuggestedMinimumHeight and getSuggestedMinimumWidth.



This is called during layout when the size of this view has changed. If you were just added to the view hierarchy, you're called with the old values of 0.



This allows animations for those drawables to be scheduled. Be sure to call through to the super class when overriding this function. You have successfully signed up for the latest Android developer news and tips.



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This doc is hidden because your selected API level for the documentation is. You can change the documentation API level with the selector above the left navigation. Class Index Package Index android android.



ProgressBar public class ProgressBar extends View java. OnLayoutChangeListener listener Add a listener that will be called when the bounds of the view change due to layout processing.



ViewPropertyAnimator animate This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View. WindowInsets dispatchApplyWindowInsets WindowInsets insets Request to apply the given window insets to this view or another view in its subtree.



View findFocus Find the view in the hierarchy rooted at this view that currently has focus. Merge two states as returned by getMeasuredState. Compute the horizontal extent of the horizontal scrollbar's thumb within the horizontal range.



Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range. Called by a parent to request that a child update its values for mScrollX and mScrollY if necessary. Compute insets that should be consumed by this view and the ones that should propagate to those under it.



Returns an AccessibilityNodeInfo representing this view from the point of view of an AccessibilityService. Dispatches an AccessibilityEvent to the View first and then to its children for adding their text content to the event.



This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view. OnApplyWindowInsetsListener to implement handling their own insets.



Sets the behavior for overlapping rendering for this view see hasOverlappingRendering for more details on this behavior. Generate a value suitable for use in setId int.



Gets the provider for managing a virtual view hierarchy rooted at this View and reported to AccessibilityService s that explore the window content. Retrieve a unique token identifying the top-level "real" window of the window that this view is attached to.



Gets the hints that help an AutofillService determine how to autofill the view with the user's data. Describes the autofill type of this view, so an AutofillService can create the proper AutofillValue when autofilling the view.



Gets the View 's current autofill value. Populates an output rectangle with the clip bounds of the view, returning true if successful or false if the view's clip bounds are null.



Returns a copy of the current clipBounds. Returns the View 's content description. Returns the context the view is running in, through which it can access the current theme, resources, etc.



Return an array of resource IDs of the drawable states representing the current state of the view. Gets whether the framework should discard touches when the view's window is obscured by another visible window.



Check for state of setFitsSystemWindows boolean. Find and return all focusable views that are descendants of this view, possibly including this view if it is focusable itself.



When a view has focus and the user navigates away from it, the next view is searched for starting from the rectangle filled in by this method. If some part of this view is not clipped by any of its parents, then return that area in r in global root coordinates.



Returns the size of the horizontal faded edges used to indicate that more content in this view is visible. Return the global KeyEvent. DispatcherState for this view's window. The transform matrix of this view, which is calculated based on the current rotation, scale, and pivot properties.



Return the full height measurement information for this view as computed by the most recent call to measure int, int. Return the full width measurement information for this view as computed by the most recent call to measure int, int.



Returns the current ViewOutlineProvider of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping. The x location of the point around which the view is rotated and scaled.



The y location of the point around which the view is rotated and scaled. The amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width. The amount that the view is scaled in y around the pivot point, as a proportion of the view's unscaled height.



Override this if your view is known to always be drawn on top of a solid color background, and needs to draw fading edges. Returns the last setSystemUiVisibility int that this view has requested.



Find and return all touchable views that are descendants of this view, possibly including this view if it is touchable itself. The horizontal location of this view relative to its left position.



The vertical location of this view relative to its top position. The depth location of this view relative to its elevation. Returns the size of the vertical faded edges used to indicate that more content in this view is visible.



Retrieve the WindowId for the window this view is currently attached to. Retrieve the overall visible display size in which the window this view is attached to has been positioned in. Returns true if this view is focusable or if it contains a reachable View for which hasExplicitFocusable returns true.



Returns true if this view is focusable or if it contains a reachable View for which hasFocusable returns true. The switch to hardware accelerated rendering in API 14 reduced the importance of the dirty rectangle.



In API 21 the given rectangle is ignored entirely in favor of an internally-calculated area instead. Because of this, clients are encouraged to just call invalidate. Called to rebuild this View's Outline from its outline provider.



Returns whether this View should receive focus when the focus is restored for the view hierarchy containing this view. Hints the Android System whether the AssistStructure.



ViewNode associated with this view is considered important for autofill purposes. Returns true if this view has been through at least one layout since it was last attached to or detached from a window.



Indicates whether or not this view's layout will be requested during the next hierarchy layout pass. If the View draws content inside its padding and enables fading edges, it needs to support padding offsets.



Return if the padding has been set through relative values setPaddingRelative int, int, int, int or through. Indicates whether this view will save its state that is, whether its onSaveInstanceState method will be called.



Indicates whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent. Returns whether the view should be treated as a focusable unit by screen reader accessibility tools.



Merge your own state values in additionalState into the base state values baseState that were returned by onCreateDrawableState int. Invoked by a parent ViewGroup to notify the end of the animation currently associated with this view.



Invoked by a parent ViewGroup to notify the start of the animation currently associated with this view. Called when the view should apply WindowInsets according to its internal policy. Called as the result of a call to cancelPendingInputEvents on this view or a parent view.



Check whether the called view is a text editor, in which case it would make sense to automatically display a soft input window for it. Called when the current configuration of the resources being used by the application have changed.



Handles drag events sent by the system following a call to startDragAndDrop. Called after onStartTemporaryDetach when the container is done changing the view. Initializes an AccessibilityEvent with information about this View which is the event source.



Initializes an AccessibilityNodeInfo with information about this view. Default implementation of KeyEvent. Allows this view to handle KeyEvent s which weren't handled by normal dispatch.



Handle a key event before it is processed by any input method associated with the view hierarchy. Called by overScrollBy int, int, int, int, int, int, int, int, boolean to respond to the results of an over-scroll operation.



Called from dispatchPopulateAccessibilityEvent AccessibilityEvent giving a chance to this View to populate the accessibility event with its text content. Populates a ViewStructure to fullfil an autofill request.



Populates a ViewStructure containing virtual children to fullfil an autofill request. Called when assist structure is being retrieved from a view as part of Activity.



Hook allowing a view to re-apply a representation of its internal state that had previously been generated by onSaveInstanceState. Hook allowing a view to generate a representation of its internal state that can later be used to create a new instance with that same state.



This is called in response to an internal scroll in this view i. This is called when a container is going to temporarily detach a child, with ViewGroup. Called when the user-visibility of this View is potentially affected by a change to this view itself, an ancestor view or the window this view is attached to.



Override to find out when the window's requested system UI visibility has changed, that is the value returned by getWindowSystemUiVisibility. Like performHapticFeedback int, with additional options.



Causes the Runnable to be added to the message queue, to be run after the specified amount of time elapses. Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop.



Cause an invalidate of the specified area to happen on the next animation time step, typically the next display frame. Cause an invalidate to happen on the next animation time step, typically the next display frame.



Causes the Runnable to execute on the next animation time step, after the specified amount of time elapses. Removes a listener which will receive unhandled KeyEvent s. Use requestApplyInsets for newer platform versions.



Call this to try to give focus to a specific view or to one of its descendants and give it a hint about what direction focus is heading. Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough.



Finds the first descendant view with the given ID, the view itself if the ID matches getId, or throws an IllegalArgumentException if the ID is invalid or there is no matching view in the hierarchy.



This method behaves exactly as sendAccessibilityEvent int but takes as an argument an empty AccessibilityEvent and does not perform a check whether accessibility is enabled.



Sets a delegate for implementing accessibility support via composition as opposed to inheritance. If this view is a visually distinct portion of a window, for example the content view of a fragment that is replaced, it is considered a pane for accessibility purposes.



Sets the opacity of the view to a value from 0 to 1, where 0 means the view is completely transparent and 1 means the view is completely opaque. Sets the hints that help an AutofillService determine how to autofill the view with the user's data.



Sets the View 's content description. Sets whether the framework should discard touches when the view's window is obscured by another visible window. Sets whether or not this view should account for system screen decorations such as the status bar and inset its content; that is, controlling whether the default implementation of fitSystemWindows Rect will be executed.



Sets whether this View should receive focus when the focus is restored for the view hierarchy containing this view. Set whether this view is currently tracking transient state that the framework should attempt to preserve when possible.



Sets how to determine whether this view is important for accessibility which is if it fires accessibility events and if it is reported to accessibility services that query the screen.



This method must be called by onMeasure int, int to store the measured width and measured height. OnApplyWindowInsetsListener to take over the policy for applying window insets to this view.



Sets the color of the ambient shadow that is drawn when the view has a positive Z or elevation value. Sets the ViewOutlineProvider of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping.



Sets the color of the spot shadow that is drawn when the view has a positive Z or elevation value. Sets the x location of the point around which the view is rotated and scaled.



Sets the y location of the point around which the view is rotated and scaled. Controls whether the saving of this view's state is enabled that is, whether its onSaveInstanceState method will be called.



Controls whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent. Sets the amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.



Sets the amount that the view is scaled in Y around the pivot point, as a proportion of the view's unscaled width. When screen readers one type of accessibility tool decide what should be read to the user, they typically look for input focusable isFocusable parents of non-focusable text items, and read those focusable parents and their non-focusable children as a unit.



Set whether this view should have sound effects enabled for events such as clicking and touching. Sets the horizontal location of this view relative to its left position. Sets the vertical location of this view relative to its top position.



Sets the depth location of this view relative to its elevation. Use startDragAndDrop for newer platform versions. If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying.



Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.



Causes the current thread to wait until either another thread invokes the notify method or the notifyAll method for this object, or a specified amount of time has elapsed. Causes the current thread to wait until another thread invokes the notify method or the notifyAll method for this object.



Have the parent populate the specified context menu if it has anything to add and then recurse on its parent. Use onDescendantInvalidated View, View instead. Ask that a new dispatch of View. Called when something has changed which has invalidated the layout of a child of this view parent.



A Drawable can call this to unschedule an action previously scheduled with scheduleDrawable Drawable, Runnable, long. Handles the request for sending an AccessibilityEvent given the event type.



Handles the request for sending an AccessibilityEvent. When set to false, prevents the layout from aligning its children's baselines. This attribute is particularly useful when the children use different values for gravity.



The default value is true. May be a boolean value, such as " true " or " false ". When a linear layout is part of another layout that is baseline aligned, it can specify which of its children to baseline align to that is, which child TextView.



May be an integer value, such as " ". Drawable to use as a vertical divider between buttons. May be a color value, in the form of " rgb ", " argb ", " rrggbb ", or " aarrggbb ".



Specifies how an object should position its content, on both the X and Y axes, within its own bounds. Must be one or more separated by ' ' of the following constant values. If false, all children are measured normally.



Should the layout be a column or a row? Use "horizontal" for a row, "vertical" for a column. The default is horizontal. Must be one of the following constant values. Defines the maximum weight sum.



May be a floating point value, such as " 1. Return the class name of this object to be used for accessibility purposes. Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from.



This is used to fill in AccessibilityNodeInfo. Return the offset of the widget's text baseline from the widget's top boundary. If this widget does not support baseline alignment, this method returns Returns the current gravity.



Subclasses need to override this method to take care of cached information that depends on the resolved layout direction, or to inform child views that inherit their layout direction.



The default implementation does nothing. Set padding displayed on both ends of dividers. For a vertical layout, the padding is applied to left and right end of dividers.



For a horizontal layout, the padding is applied to top and bottom end of dividers. Describes how the child views are positioned. Defines the desired weights sum. Generally, this should be done for containers that can scroll, such as a List.



This prevents the pressed state from appearing when the user is actually trying to scroll the content. The default implementation returns true for compatibility reasons.



Subclasses that do not scroll should generally override this method and return false. Returns a safe set of layout parameters based on the supplied layout params. When a ViewGroup is passed a View whose layout params do not pass the test of checkLayoutParams android.



LayoutParams, this method is invoked. This method should return a new set of layout params suitable for this ViewGroup, possibly by copying the appropriate attributes from the specified set of layout params.



Called from layout when this view should assign a size and position to each of its children. Derived classes with children should override this method and call layout on each of their children.



Measure the view and its content to determine the measured width and the measured height. This method is invoked by measure int, int and should be overridden by subclasses to provide accurate and efficient measurement of their contents.



When overriding this method, you must call setMeasuredDimension int, int to store the measured width and height of this view. Failure to do so will trigger an IllegalStateException, thrown by measure int, int.



Calling the superclass' onMeasure int, int is a valid use. The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec.



Subclasses should override onMeasure int, int to provide better measurements of their content. If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width getSuggestedMinimumHeight and getSuggestedMinimumWidth.



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If you want to change your language preference later, use the language menu at the bottom of each page. This doc is hidden because your selected API level for the documentation is.



You can change the documentation API level with the selector above the left navigation. Class Index Package Index android android. NumberPicker A widget that enables the user to select a number from a predefined range.



RadioGroup This class is used to create a multiple-exclusion scope for a set of radio buttons. LayoutParams params Adds a child view with the specified layout parameters. LayoutParams params, boolean preventRequestLayout Adds a view during layout.



LayoutParams params Adds a view during layout. LayoutParams params, int index, int count Subclasses should override this method to set layout animation parameters on the supplied child.



LayoutParams params Attaches a view to this view group. LayoutParams p void childDrawableStateChanged View child If addStatesFromChildren is true, refreshes this group's drawable state to include the states from its children.



WindowInsets dispatchApplyWindowInsets WindowInsets insets Request to apply the given window insets to this view or another view in its subtree. View findFocus Find the view in the hierarchy rooted at this view that currently has focus.



View focusSearch View focused, int direction Find the nearest view in the specified direction that wants to take focus. LayoutParams generateLayoutParams AttributeSet attrs Returns a new set of layout parameters based on the supplied attributes set.



LayoutParams p Returns a safe set of layout parameters based on the supplied layout params. CharSequence getAccessibilityClassName Return the class name of this object to be used for accessibility purposes.



View getChildAt int index Returns the view at the specified position in the group. View getFocusedChild Returns the focused child of this view, if any. LayoutAnimationController getLayoutAnimation Returns the layout animation controller used to animate the group's children.



AnimationListener getLayoutAnimationListener Returns the animation listener to which layout animation events are sent. PointerIcon onResolvePointerIcon MotionEvent event, int pointerIndex Returns the pointer icon for the motion event, or null if it doesn't specify the icon.



AnimationListener animationListener Specifies the animation listener to which layout animation events must be sent. OnHierarchyChangeListener listener Register a callback to be invoked when a child is added to or removed from this view.



Callback callback, int type Start an action mode of a specific type for the specified view. OnLayoutChangeListener listener Add a listener that will be called when the bounds of the view change due to layout processing.



ViewPropertyAnimator animate This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View. View focusSearch int direction Find the nearest view in the specified direction that can take focus.



AccessibilityNodeProvider getAccessibilityNodeProvider Gets the provider for managing a virtual view hierarchy rooted at this View and reported to AccessibilityService s that explore the window content.



Animation getAnimation Get the animation currently associated with this view. IBinder getApplicationWindowToken Retrieve a unique token identifying the top-level "real" window of the window that this view is attached to.



String[] getAutofillHints Gets the hints that help an AutofillService determine how to autofill the view with the user's data. Mode getBackgroundTintMode Return the blending mode used to apply the tint to the background drawable, if specified.



Rect getClipBounds Returns a copy of the current clipBounds. ContextMenuInfo getContextMenuInfo Views should implement this if they have extra information to associate with the context menu.



Display getDisplay Gets the logical display to which the view's window has been attached. Drawable getForeground Returns the drawable used as the foreground of this View. Mode getForegroundTintMode Return the blending mode used to apply the tint to the foreground drawable, if specified.



Handler getHandler final boolean getHasOverlappingRendering Returns the value for overlapping rendering that is used internally. Matrix getMatrix The transform matrix of this view, which is calculated based on the current rotation, scale, and pivot properties.



ViewOverlay getOverlay Returns the overlay for this view, creating it if it does not yet exist. PointerIcon getPointerIcon Gets the pointer icon for the current view. Resources getResources Returns the resources associated with this view.



View getRootView Finds the topmost view in the current view hierarchy.





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