Summary: Ctors | Protected Methods | Inherited Methods

ExpandableTransformationBehavior

public abstract class ExpandableTransformationBehavior
extends ExpandableBehavior

java.lang.Object
↳	androidx.coordinatorlayout.widget.CoordinatorLayout.Behavior<android.view.View>
	↳	com.google.android.material.transformation.ExpandableBehavior
		↳	com.google.android.material.transformation.ExpandableTransformationBehavior

Known direct subclasses

FabTransformationBehavior, FabTransformationScrimBehavior

FabTransformationBehavior	This class is deprecated. Use `MaterialContainerTransform` instead.
FabTransformationScrimBehavior	This class is deprecated. Use `MaterialContainerTransform` instead.

Known indirect subclasses

FabTransformationSheetBehavior

FabTransformationSheetBehavior This class is deprecated. Use MaterialContainerTransform instead.

This class is deprecated.
Use MaterialContainerTransform instead.

Base Behavior for views that can react to an ExpandableWidget's ExpandableWidget.setExpanded(boolean) state changes by transforming the ExpandableWidget into itself.

Behaviors should override onCreateExpandedStateChangeAnimation(View, View, boolean, boolean) to return an animation

Summary

Public constructors
`ExpandableTransformationBehavior()`
`ExpandableTransformationBehavior(Context context, AttributeSet attrs)`

Protected methods
`abstract AnimatorSet`	`onCreateExpandedStateChangeAnimation(View dependency, View child, boolean expanded, boolean isAnimating)` Creates an AnimatorSet to be played for this expanded state change.
`boolean`	`onExpandedStateChange(View dependency, View child, boolean expanded, boolean animated)` Reacts to a change in expanded state.

Inherited methods

From class


        
          com.google.android.material.transformation.ExpandableBehavior

`ExpandableWidget`	`findExpandableWidget(CoordinatorLayout parent, View child)`
`static <T extends ExpandableBehavior> T`	`from(View view, Class<T> klass)` A utility function to get the `ExpandableBehavior` attached to the `view`.
`abstract boolean`	`layoutDependsOn(CoordinatorLayout parent, View child, View dependency)`
`boolean`	`onDependentViewChanged(CoordinatorLayout parent, View child, View dependency)`
`abstract boolean`	`onExpandedStateChange(View dependency, View child, boolean expanded, boolean animated)` Reacts to a change in expanded state.
`boolean`	`onLayoutChild(CoordinatorLayout parent, View child, int layoutDirection)`

From class


        
          androidx.coordinatorlayout.widget.CoordinatorLayout.Behavior

`boolean`	`blocksInteractionBelow(CoordinatorLayout arg0, View arg1)`
`boolean`	`getInsetDodgeRect(CoordinatorLayout arg0, View arg1, Rect arg2)`
`int`	`getScrimColor(CoordinatorLayout arg0, View arg1)`
`float`	`getScrimOpacity(CoordinatorLayout arg0, View arg1)`
`static Object`	`getTag(View arg0)`
`boolean`	`layoutDependsOn(CoordinatorLayout arg0, View arg1, View arg2)`
`WindowInsetsCompat`	`onApplyWindowInsets(CoordinatorLayout arg0, View arg1, WindowInsetsCompat arg2)`
`void`	`onAttachedToLayoutParams(CoordinatorLayout.LayoutParams arg0)`
`boolean`	`onDependentViewChanged(CoordinatorLayout arg0, View arg1, View arg2)`
`void`	`onDependentViewRemoved(CoordinatorLayout arg0, View arg1, View arg2)`
`void`	`onDetachedFromLayoutParams()`
`boolean`	`onInterceptTouchEvent(CoordinatorLayout arg0, View arg1, MotionEvent arg2)`
`boolean`	`onLayoutChild(CoordinatorLayout arg0, View arg1, int arg2)`
`boolean`	`onMeasureChild(CoordinatorLayout arg0, View arg1, int arg2, int arg3, int arg4, int arg5)`
`boolean`	`onNestedFling(CoordinatorLayout arg0, View arg1, View arg2, float arg3, float arg4, boolean arg5)`
`boolean`	`onNestedPreFling(CoordinatorLayout arg0, View arg1, View arg2, float arg3, float arg4)`
`void`	`onNestedPreScroll(CoordinatorLayout arg0, View arg1, View arg2, int arg3, int arg4, int[] arg5, int arg6)`
`void`	`onNestedPreScroll(CoordinatorLayout arg0, View arg1, View arg2, int arg3, int arg4, int[] arg5)`
`void`	`onNestedScroll(CoordinatorLayout arg0, View arg1, View arg2, int arg3, int arg4, int arg5, int arg6, int arg7)`
`void`	`onNestedScroll(CoordinatorLayout arg0, View arg1, View arg2, int arg3, int arg4, int arg5, int arg6, int arg7, int[] arg8)`
`void`	`onNestedScroll(CoordinatorLayout arg0, View arg1, View arg2, int arg3, int arg4, int arg5, int arg6)`
`void`	`onNestedScrollAccepted(CoordinatorLayout arg0, View arg1, View arg2, View arg3, int arg4, int arg5)`
`void`	`onNestedScrollAccepted(CoordinatorLayout arg0, View arg1, View arg2, View arg3, int arg4)`
`boolean`	`onRequestChildRectangleOnScreen(CoordinatorLayout arg0, View arg1, Rect arg2, boolean arg3)`
`void`	`onRestoreInstanceState(CoordinatorLayout arg0, View arg1, Parcelable arg2)`
`Parcelable`	`onSaveInstanceState(CoordinatorLayout arg0, View arg1)`
`boolean`	`onStartNestedScroll(CoordinatorLayout arg0, View arg1, View arg2, View arg3, int arg4, int arg5)`
`boolean`	`onStartNestedScroll(CoordinatorLayout arg0, View arg1, View arg2, View arg3, int arg4)`
`void`	`onStopNestedScroll(CoordinatorLayout arg0, View arg1, View arg2, int arg3)`
`void`	`onStopNestedScroll(CoordinatorLayout arg0, View arg1, View arg2)`
`boolean`	`onTouchEvent(CoordinatorLayout arg0, View arg1, MotionEvent arg2)`
`static void`	`setTag(View arg0, Object arg1)`

From class


        
          java.lang.Object

`Object`	`clone()`
`boolean`	`equals(Object arg0)`
`void`	`finalize()`
`final Class<?>`	`getClass()`
`int`	`hashCode()`
`final void`	`notify()`
`final void`	`notifyAll()`
`String`	`toString()`
`final void`	`wait(long arg0, int arg1)`
`final void`	`wait(long arg0)`
`final void`	`wait()`

Public constructors

ExpandableTransformationBehavior

public ExpandableTransformationBehavior ()

ExpandableTransformationBehavior

public ExpandableTransformationBehavior (Context context, 
                AttributeSet attrs)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`

Protected methods

onCreateExpandedStateChangeAnimation

protected abstract AnimatorSet onCreateExpandedStateChangeAnimation (View dependency, 
                View child, 
                boolean expanded, 
                boolean isAnimating)

Creates an AnimatorSet to be played for this expanded state change.

If the new expanded state is true, the dependency should be hidden and the child should be shown.

If the new expanded state is false, the dependency should be shown and the child should be hidden.

Parameters
`dependency`	`View`: the `ExpandableWidget` dependency containing the new expanded state.
`child`	`View`: the view that should react to the change in expanded state.
`expanded`	`boolean`: the new expanded state.
`isAnimating`	`boolean`: whether this state change occurred while a previous state change was still

Returns
`AnimatorSet`

onExpandedStateChange

protected boolean onExpandedStateChange (View dependency, 
                View child, 
                boolean expanded, 
                boolean animated)

Reacts to a change in expanded state. This callback is guaranteed to be called only once even if ExpandableWidget.setExpanded(boolean) is called multiple times with the same value. Upon configuration change, this callback is called with animated set to false.

Parameters
`dependency`	`View`: the `ExpandableWidget` dependency containing the new expanded state.
`child`	`View`: the view that should react to the change in expanded state.
`expanded`	`boolean`: the new expanded state.
`animated`	`boolean`: true if `ExpandableWidget.setExpanded(boolean)` was called, false if restoring from a configuration change.

Returns
`boolean`	true if the Behavior changed the child view's size or position, false otherwise.