DrawerListener

Kotlin |Java

interface 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 Unit	`onDrawerClosed(@NonNull drawerView: View)` Called when a drawer has settled in a completely closed state.
abstract Unit	`onDrawerOpened(@NonNull drawerView: View)` Called when a drawer has settled in a completely open state.
abstract Unit	`onDrawerSlide(@NonNull drawerView: View, slideOffset: Float)` Called when a drawer's position changes.
abstract Unit	`onDrawerStateChanged(newState: Int)` Called when the drawer motion state changes.

abstract fun onDrawerClosed(@NonNull drawerView: View): Unit

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

Parameters
`drawerView`	View: Drawer view that is now closed

abstract fun onDrawerOpened(@NonNull drawerView: View): Unit

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

Parameters
`drawerView`	View: Drawer view that is now open

abstract fun onDrawerSlide(
    @NonNull drawerView: View, 
    slideOffset: Float
): Unit

Called when a drawer's position changes.

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

abstract fun onDrawerStateChanged(newState: Int): Unit

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

Parameters
`newState`	Int: The new drawer motion state