androidx.core.view

Kotlin |Java

Interfaces

VisibilityListener	Listens to changes in visibility as reported by ActionProvider#refreshVisibility().
OnDragStartListener	Interface definition for a callback to be invoked when a drag start gesture is detected.
LayoutInflaterFactory	Used with LayoutInflaterCompat.setFactory().
OnActionExpandListener	Interface definition for a callback to be invoked when a menu item marked with is expanded or collapsed.
NestedScrollingChild	This interface should be implemented by View subclasses that wish to support dispatching nested scrolling operations to a cooperating parent ViewGroup.
NestedScrollingChild2	This interface should be implemented by View subclasses that wish to support dispatching nested scrolling operations to a cooperating parent ViewGroup.
NestedScrollingChild3	This interface should be implemented by View subclasses that wish to support dispatching nested scrolling operations to a cooperating parent ViewGroup.
NestedScrollingParent	This interface should be implemented by ViewGroup subclasses that wish to support scrolling operations delegated by a nested child view.
NestedScrollingParent2	This interface should be implemented by ViewGroup subclasses that wish to support scrolling operations delegated by a nested child view.
NestedScrollingParent3	This interface should be implemented by ViewGroup subclasses that wish to support scrolling operations delegated by a nested child view.
OnApplyWindowInsetsListener	Listener for applying window insets on a view in a custom way.
OnReceiveContentListener	Listener for apps to implement handling for insertion of content.
OnReceiveContentViewBehavior	Interface for widgets to implement default behavior for receiving content.
ScrollingView	An interface that can be implemented by Views to provide scroll related APIs.
TintableBackgroundView	Interface which allows a android.view.View to receive background tinting calls from ViewCompat when running on API v20 devices or lower.
OnUnhandledKeyEventListenerCompat	Interface definition for a callback to be invoked when a hardware key event hasn't been handled by the view hierarchy.
ViewPropertyAnimatorListener	An animation listener receives notifications from an animation.
ViewPropertyAnimatorUpdateListener	Implementors of this interface can add themselves as update listeners to an ViewPropertyAnimatorCompat instance to receive callbacks on every animation frame, after the current frame's values have been calculated for that ViewPropertyAnimatorCompat.
WindowInsetsAnimationControlListenerCompat	Listener that encapsulates a request to WindowInsetsControllerCompat#controlWindowInsetsAnimation.
OnControllableInsetsChangedListener	Listener to be notified when the set of controllable WindowInsetsCompat.Type controlled by a WindowInsetsController changes.

Classes

AccessibilityDelegateCompat	Helper for accessing AccessibilityDelegate.
ActionProvider	This class is a mediator for accomplishing a given task, for example sharing a file.
ContentInfoCompat	Holds all the relevant data for a request to OnReceiveContentListener.
DisplayCompat	A class for retrieving the physical display size from a device.
DisplayCutoutCompat	Represents the area of the display that is not functional for displaying content.
DragAndDropPermissionsCompat	Helper for accessing features in android.view.DragAndDropPermissions a backwards compatible fashion.
DragStartHelper	DragStartHelper is a utility class for implementing drag and drop support.
GestureDetectorCompat	Detects various gestures and events using the supplied MotionEvents.
GravityCompat	Compatibility shim for accessing newer functionality from android.view.Gravity.
InputDeviceCompat	Helper class for accessing values in android.view.InputDevice.
LayoutInflaterCompat	Helper for accessing features in LayoutInflater.
MarginLayoutParamsCompat	Helper for accessing API features in MarginLayoutParams in a backwards compatible way.
MenuCompat	Helper for accessing features in android.view.Menu.
MenuItemCompat	Helper for accessing features in android.view.MenuItem.
MotionEventCompat	Helper for accessing features in MotionEvent.
NestedScrollingChildHelper	Helper class for implementing nested scrolling child views compatible with Android platform versions earlier than Android 5.
NestedScrollingParentHelper	Helper class for implementing nested scrolling parent views compatible with Android platform versions earlier than Android 5.
OneShotPreDrawListener	An OnPreDrawListener that will remove itself after one OnPreDraw call.
PointerIconCompat	Helper for accessing features in android.view.PointerIcon in a backwards compatible fashion.
ScaleGestureDetectorCompat	Helper for accessing features in ScaleGestureDetector.
VelocityTrackerCompat	Helper for accessing features in VelocityTracker.
ViewCompat	Helper for accessing features in View.
ViewConfigurationCompat	Helper for accessing features in ViewConfiguration.
ViewGroupCompat	Helper for accessing features in ViewGroup.
ViewParentCompat	Helper for accessing features in ViewParent.
ViewPropertyAnimatorCompat
ViewPropertyAnimatorListenerAdapter	This adapter class provides empty implementations of the methods from ViewPropertyAnimatorListener.
WindowCompat	Helper for accessing features in Window.
WindowInsetsAnimationCompat	Class representing an animation of a set of windows that cause insets.
WindowInsetsAnimationControllerCompat	Controller for app-driven animation of system windows.
WindowInsetsCompat	Describes a set of insets for window content.
WindowInsetsControllerCompat	Provide simple controls of windows that generate insets.

Extension functions summary

For android.view.Menu
operator Boolean	Menu.contains(item: MenuItem) Returns true if item is found in this menu.
Unit	Menu.forEach(action: (item: MenuItem) -> Unit) Performs the given action on each item in this menu.
Unit	Menu.forEachIndexed(action: (index: Int, item: MenuItem) -> Unit) Performs the given action on each item in this menu, providing its sequential index.
operator MenuItem	Menu.get(index: Int) Returns the menu at index.
Boolean	Menu.isEmpty() Returns true if this menu contains no items.
Boolean	Menu.isNotEmpty() Returns true if this menu contains one or more items.
operator MutableIterator<MenuItem>	Menu.iterator() Returns a MutableIterator over the items in this menu.
operator Unit	Menu.minusAssign(item: MenuItem) Removes item from this menu.

For android.view.View
Unit	View.doOnAttach(crossinline action: (view: View) -> Unit) Performs the given action when this view is attached to a window.
Unit	View.doOnDetach(crossinline action: (view: View) -> Unit) Performs the given action when this view is detached from a window.
Unit	View.doOnLayout(crossinline action: (view: View) -> Unit) Performs the given action when this view is laid out.
Unit	View.doOnNextLayout(crossinline action: (view: View) -> Unit) Performs the given action when this view is next laid out.
OneShotPreDrawListener	View.doOnPreDraw(crossinline action: (view: View) -> Unit) Performs the given action when the view tree is about to be drawn.
Bitmap	View.drawToBitmap(config: Config = Bitmap.Config.ARGB_8888) Return a Bitmap representation of this View.
Runnable	View.postDelayed(delayInMillis: Long, crossinline action: () -> Unit) Version of View.postDelayed which re-orders the parameters, allowing the action to be placed outside of parentheses.
Runnable	View.postOnAnimationDelayed(delayInMillis: Long, crossinline action: () -> Unit) Version of View.postOnAnimationDelayed which re-orders the parameters, allowing the action to be placed outside of parentheses.
Unit	View.setPadding(@Px size: Int) Sets the view's padding.
Unit	View.updateLayoutParams(block: