ViewGroupCompat

public final class ViewGroupCompat
extends Object

java.lang.Object
   ↳ androidx.core.view.ViewGroupCompat


Helper for accessing features in ViewGroup.

Summary

Constants

int LAYOUT_MODE_CLIP_BOUNDS

This constant is a layoutMode.

int LAYOUT_MODE_OPTICAL_BOUNDS

This constant is a layoutMode.

Public methods

static int getLayoutMode(ViewGroup group)

Returns the basis of alignment during layout operations on this ViewGroup: either LAYOUT_MODE_CLIP_BOUNDS or LAYOUT_MODE_OPTICAL_BOUNDS.

static int getNestedScrollAxes(ViewGroup group)

Return the current axes of nested scrolling for this ViewGroup.

static boolean isTransitionGroup(ViewGroup group)

Returns true if this ViewGroup should be considered as a single entity for removal when executing an Activity transition.

static boolean onRequestSendAccessibilityEvent(ViewGroup group, View child, AccessibilityEvent event)

This method is deprecated. Use ViewGroup.onRequestSendAccessibilityEvent(View, AccessibilityEvent) directly.

static void setLayoutMode(ViewGroup group, int mode)

Sets the basis of alignment during the layout of this ViewGroup.

static void setMotionEventSplittingEnabled(ViewGroup group, boolean split)

This method is deprecated. Use ViewGroup.setMotionEventSplittingEnabled(boolean) directly.

static void setTransitionGroup(ViewGroup group, boolean isTransitionGroup)

Changes whether or not this ViewGroup should be treated as a single entity during Activity Transitions.

Inherited methods

Constants

LAYOUT_MODE_CLIP_BOUNDS

public static final int LAYOUT_MODE_CLIP_BOUNDS

This constant is a layoutMode. Clip bounds are the raw values of left, top, right and bottom.

Constant Value: 0 (0x00000000)

LAYOUT_MODE_OPTICAL_BOUNDS

public static final int LAYOUT_MODE_OPTICAL_BOUNDS

This constant is a layoutMode. Optical bounds describe where a widget appears to be. They sit inside the clip bounds which need to cover a larger area to allow other effects, such as shadows and glows, to be drawn.

Constant Value: 1 (0x00000001)

Public methods

getLayoutMode

public static int getLayoutMode (ViewGroup group)

Returns the basis of alignment during layout operations on this ViewGroup: either LAYOUT_MODE_CLIP_BOUNDS or LAYOUT_MODE_OPTICAL_BOUNDS.

If no layoutMode was explicitly set, either programmatically or in an XML resource, the method returns the layoutMode of the view's parent ViewGroup if such a parent exists, otherwise the method returns a default value of LAYOUT_MODE_CLIP_BOUNDS.

Parameters
group ViewGroup

Returns
int the layout mode to use during layout operations

getNestedScrollAxes

public static int getNestedScrollAxes (ViewGroup group)

Return the current axes of nested scrolling for this ViewGroup.

A ViewGroup returning something other than ViewCompat.SCROLL_AXIS_NONE is currently acting as a nested scrolling parent for one or more descendant views in the hierarchy.

Parameters
group ViewGroup

Returns
int Flags indicating the current axes of nested scrolling

isTransitionGroup

public static boolean isTransitionGroup (ViewGroup group)

Returns true if this ViewGroup should be considered as a single entity for removal when executing an Activity transition. If this is false, child elements will move individually during the transition.

Parameters
group ViewGroup

Returns
boolean

onRequestSendAccessibilityEvent

public static boolean onRequestSendAccessibilityEvent (ViewGroup group, 
                View child, 
                AccessibilityEvent event)

This method is deprecated.
Use ViewGroup.onRequestSendAccessibilityEvent(View, AccessibilityEvent) directly.

Called when a child has requested sending an AccessibilityEvent and gives an opportunity to its parent to augment the event.

If an