Summary: Methods | Inherited Methods

ViewTreeLifecycleOwner

Kotlin |Java

public class ViewTreeLifecycleOwner
extends Object

java.lang.Object
↳	androidx.lifecycle.ViewTreeLifecycleOwner

Accessors for finding a view tree-local LifecycleOwner that reports the lifecycle for the given view.

Summary

Public methods
`static LifecycleOwner`	`get(View view)` Retrieve the `LifecycleOwner` responsible for managing the given `View`.
`static void`	`set(View view, LifecycleOwner lifecycleOwner)` Set the `LifecycleOwner` responsible for managing the given `View`.

Inherited methods

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 methods

get

public static LifecycleOwner get (View view)

Retrieve the LifecycleOwner responsible for managing the given View. This may be used to scope work or heavyweight resources associated with the view that may span cycles of the view becoming detached and reattached from a window.

Parameters
`view`	`View`: View to fetch a `LifecycleOwner` for

Returns
`LifecycleOwner`	The `LifecycleOwner` responsible for managing this view and/or some subset of its ancestors

set

public static void set (View view, 
                LifecycleOwner lifecycleOwner)

Set the LifecycleOwner responsible for managing the given View. Calls to get(View) from this view or descendants will return lifecycleOwner.

This should only be called by constructs such as activities or fragments that manage a view tree and reflect their own lifecycle through a LifecycleOwner. Callers should only set a LifecycleOwner that will be stable. The associated lifecycle should report that it is destroyed if the view tree is removed and is not guaranteed to later become reattached to a window.

Parameters
`view`	`View`: Root view managed by lifecycleOwner
`lifecycleOwner`	`LifecycleOwner`: LifecycleOwner representing the manager of the given view