DrawerLayout.DrawerListener

Added in 1.0.0

Kotlin |Java

public interface DrawerLayout.DrawerListener

Known direct subclasses

`ActionBarDrawerToggle`	This class provides a handy way to tie together the functionality of `DrawerLayout` and the framework `ActionBar` to implement the recommended design for navigation drawers.
`DrawerLayout.SimpleDrawerListener`	Stub/no-op implementations of all methods of `DrawerListener`.

Listener for monitoring events about drawers.

Summary

Public methods
`abstract void`	`onDrawerClosed(@NonNull View drawerView)` Called when a drawer has settled in a completely closed state.
`abstract void`	`onDrawerOpened(@NonNull View drawerView)` Called when a drawer has settled in a completely open state.
`abstract void`	`onDrawerSlide(@NonNull View drawerView, float slideOffset)` Called when a drawer's position changes.
`abstract void`	`onDrawerStateChanged(int newState)` Called when the drawer motion state changes.

Added in 1.0.0

abstract void onDrawerClosed(@NonNull View drawerView)

Called when a drawer has settled in a completely closed state.

Parameters
`@NonNull View drawerView`	Drawer view that is now closed

Added in 1.0.0

abstract void onDrawerOpened(@NonNull View drawerView)

Called when a drawer has settled in a completely open state. The drawer is interactive at this point.

Parameters
`@NonNull View drawerView`	Drawer view that is now open

Added in 1.0.0

abstract void onDrawerSlide(@NonNull View drawerView, float slideOffset)

Called when a drawer's position changes.

Parameters
`@NonNull View drawerView`	The child view that was moved
`float slideOffset`	The new offset of this drawer within its range, from 0-1

Added in 1.0.0

abstract void onDrawerStateChanged(int newState)

Called when the drawer motion state changes. The new state will be one of STATE_IDLE, STATE_DRAGGING or STATE_SETTLING.

Parameters
`int newState`	The new drawer motion state