Behavior

Kotlin |Java

abstract class Behavior<V : View!>

kotlin.Any
↳	androidx.coordinatorlayout.widget.CoordinatorLayout.Behavior

Interaction behavior plugin for child views of CoordinatorLayout.

A Behavior implements one or more interactions that a user can take on a child view. These interactions may include drags, swipes, flings, or any other gestures.

Summary

Public constructors
<init>() Default constructor for instantiating Behaviors.
<init>(context: Context!, attrs: AttributeSet!) Default constructor for inflating Behaviors from layout.

Public methods
open Boolean	blocksInteractionBelow(@NonNull parent: CoordinatorLayout, @NonNull child: V) Determine whether interaction with views behind the given child in the child order should be blocked.
open Boolean	getInsetDodgeRect(@NonNull parent: CoordinatorLayout, @NonNull child: V, @NonNull rect: Rect) Called when a view is set to dodge view insets.
open Int	getScrimColor(@NonNull parent: CoordinatorLayout, @NonNull child: V) Supply a scrim color that will be painted behind the associated child view.
open Float	getScrimOpacity(@NonNull parent: CoordinatorLayout, @NonNull child: V) Determine the current opacity of the scrim behind a given child view
open static Any?	getTag(@NonNull child: View) Get the behavior-specific tag object with the given child view.
open Boolean	layoutDependsOn(@NonNull parent: CoordinatorLayout, @NonNull child: V, @NonNull dependency: View) Determine whether the supplied child view has another specific sibling view as a layout dependency.
open WindowInsetsCompat	onApplyWindowInsets(@NonNull coordinatorLayout: CoordinatorLayout, @NonNull child: V, @NonNull insets: WindowInsetsCompat) Called when the window insets have changed.
open Unit	onAttachedToLayoutParams(@NonNull params: CoordinatorLayout.LayoutParams) Called when the Behavior has been attached to a LayoutParams instance.
open Boolean	onDependentViewChanged(@NonNull parent: CoordinatorLayout, @NonNull child: V, @NonNull dependency: View) Respond to a change in a child's dependent view
open Unit	onDependentViewRemoved(@NonNull parent: CoordinatorLayout, @NonNull child: V, @NonNull dependency: View) Respond to a child's dependent view being removed.
open Unit	onDetachedFromLayoutParams() Called when the Behavior has been detached from its holding LayoutParams instance.
open Boolean	onInterceptTouchEvent(@NonNull parent: CoordinatorLayout, @NonNull child: V, @NonNull ev: MotionEvent) Respond to CoordinatorLayout touch events before they are dispatched to child views.
open Boolean	onLayoutChild(@NonNull parent: CoordinatorLayout, @NonNull child: V, layoutDirection: Int) Called when the parent CoordinatorLayout is about the lay out the given child view.
open Boolean	onMeasureChild(@NonNull parent: CoordinatorLayout, @NonNull child: V, parentWidthMeasureSpec: Int, widthUsed: Int, parentHeightMeasureSpec: Int, heightUsed: Int) Called when the parent CoordinatorLayout is about to measure the given child view.
open Boolean	onNestedFling(@NonNull coordinatorLayout: CoordinatorLayout, @NonNull child: V, @NonNull target: View, velocityX: Float, velocityY: Float, consumed: Boolean) Called when a nested scrolling child is starting a fling or an action that would be a fling.
open Boolean	onNestedPreFling(@NonNull coordinatorLayout: CoordinatorLayout, @NonNull child: V, @NonNull target: View, velocityX: Float, velocityY: Float) Called when a nested scrolling child is about to start a fling.
open Unit	onNestedPreScroll(@NonNull coordinatorLayout: CoordinatorLayout, @NonNull child: V, @NonNull target: View, dx: Int, dy: Int, @NonNull consumed: IntArray)
open Unit	onNestedPreScroll(@NonNull coordinatorLayout: CoordinatorLayout, @NonNull child: V, @NonNull target: View, dx: Int, dy: Int, @NonNull consumed: IntArray, type: Int) Called when a nested scroll in progress is about to update, before the target has consumed any of the scrolled distance.
open Unit	onNestedScroll(@NonNull