# BottomSheetBehavior.BottomSheetCallback

added in[version 23.4.0](https://developer.android.com/topic/libraries/support-library/revisions)  
belongs to Maven artifact com.android.support:design:27.1.0  
Summary:[Ctors](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#pubctors)\|[Methods](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#)  

# BottomSheetBehavior.BottomSheetCallback

| This package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider[migrating](https://developer.android.com/jetpack/androidx/migrate)existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library[class mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings).

`
public
static

abstract
class
BottomSheetBehavior.BottomSheetCallback
`  
`

extends Object


``


`

|---|-----------------------------------------------------------------------|
| java.lang.Object                                                         ||
| ↳ | android.support.design.widget.BottomSheetBehavior.BottomSheetCallback |

<br />

*** ** * ** ***

Callback for monitoring events about bottom sheets.

## Summary

|                                                                                            ### Public constructors                                                                                            ||
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| ` `[BottomSheetBehavior.BottomSheetCallback](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#BottomSheetBehavior.BottomSheetCallback())`() ` |

|                                                                                                                                                                 ### Public methods                                                                                                                                                                 ||
|------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` abstract void` | ` `[onSlide](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#onSlide(android.view.View, float))`(`[View](https://developer.android.com/reference/android/view/View.html)` bottomSheet, float slideOffset) ` Called when the bottom sheet is being dragged.         |
| ` abstract void` | ` `[onStateChanged](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#onStateChanged(android.view.View, int))`(`[View](https://developer.android.com/reference/android/view/View.html)` bottomSheet, int newState) ` Called when the bottom sheet changes its state. |

| ### Inherited methods |
|-----------------------|---|
| [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback#)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

### BottomSheetBehavior.BottomSheetCallback

added in[version 23.4.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
BottomSheetBehavior.BottomSheetCallback ()
```

<br />

<br />

## Public methods

### onSlide

added in[version 23.4.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void onSlide (View bottomSheet, 
                float slideOffset)
```

Called when the bottom sheet is being dragged.

<br />

|                                                                                                                                  Parameters                                                                                                                                  ||
|---------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `bottomSheet` | `View`: The bottom sheet view. <br />                                                                                                                                                                                                                         |
| `slideOffset` | `float`: The new offset of this bottom sheet within \[-1,1\] range. Offset increases as this bottom sheet is moving upward. From 0 to 1 the sheet is between collapsed and expanded states and from -1 to 0 it is between hidden and collapsed states. <br /> |

### onStateChanged

added in[version 23.4.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void onStateChanged (View bottomSheet, 
                int newState)
```

Called when the bottom sheet changes its state.

<br />

|                                                                                                                                                                                                                                                                                                                                               Parameters                                                                                                                                                                                                                                                                                                                                                ||
|---------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `bottomSheet` | `View`: The bottom sheet view. <br />                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| `newState`    | `int`: The new state. This will be one of[STATE_DRAGGING](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior#STATE_DRAGGING),[STATE_SETTLING](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior#STATE_SETTLING),[STATE_EXPANDED](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior#STATE_EXPANDED),[STATE_COLLAPSED](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior#STATE_COLLAPSED), or[STATE_HIDDEN](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior#STATE_HIDDEN). <br /> |

-

  ## Annotations

  - [CoordinatorLayout.DefaultBehavior](https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout.DefaultBehavior)
-

  ## Interfaces

  - [AppBarLayout.OnOffsetChangedListener](https://developer.android.com/reference/android/support/design/widget/AppBarLayout.OnOffsetChangedListener)
  - [BaseTransientBottomBar.ContentViewCallback](https://developer.android.com/reference/android/support/design/widget/BaseTransientBottomBar.ContentViewCallback)
  - [BottomNavigationView.OnNavigationItemReselectedListener](https://developer.android.com/reference/android/support/design/widget/BottomNavigationView.OnNavigationItemReselectedListener)
  - [BottomNavigationView.OnNavigationItemSelectedListener](https://developer.android.com/reference/android/support/design/widget/BottomNavigationView.OnNavigationItemSelectedListener)
  - [CoordinatorLayout.AttachedBehavior](https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout.AttachedBehavior)
  - [NavigationView.OnNavigationItemSelectedListener](https://developer.android.com/reference/android/support/design/widget/NavigationView.OnNavigationItemSelectedListener)
  - [SwipeDismissBehavior.OnDismissListener](https://developer.android.com/reference/android/support/design/widget/SwipeDismissBehavior.OnDismissListener)
  - [TabLayout.OnTabSelectedListener](https://developer.android.com/reference/android/support/design/widget/TabLayout.OnTabSelectedListener)
-

  ## Classes

  - [AppBarLayout](https://developer.android.com/reference/android/support/design/widget/AppBarLayout)
  - [AppBarLayout.Behavior](https://developer.android.com/reference/android/support/design/widget/AppBarLayout.Behavior)
  - [AppBarLayout.Behavior.DragCallback](https://developer.android.com/reference/android/support/design/widget/AppBarLayout.Behavior.DragCallback)
  - [AppBarLayout.Behavior.SavedState](https://developer.android.com/reference/android/support/design/widget/AppBarLayout.Behavior.SavedState)
  - [AppBarLayout.LayoutParams](https://developer.android.com/reference/android/support/design/widget/AppBarLayout.LayoutParams)
  - [AppBarLayout.ScrollingViewBehavior](https://developer.android.com/reference/android/support/design/widget/AppBarLayout.ScrollingViewBehavior)
  - [BaseTransientBottomBar](https://developer.android.com/reference/android/support/design/widget/BaseTransientBottomBar)
  - [BaseTransientBottomBar.BaseCallback](https://developer.android.com/reference/android/support/design/widget/BaseTransientBottomBar.BaseCallback)
  - [BottomNavigationView](https://developer.android.com/reference/android/support/design/widget/BottomNavigationView)
  - [BottomSheetBehavior](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior)
  - [BottomSheetBehavior.BottomSheetCallback](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.BottomSheetCallback)
  - [BottomSheetBehavior.SavedState](https://developer.android.com/reference/android/support/design/widget/BottomSheetBehavior.SavedState)
  - [BottomSheetDialog](https://developer.android.com/reference/android/support/design/widget/BottomSheetDialog)
  - [BottomSheetDialogFragment](https://developer.android.com/reference/android/support/design/widget/BottomSheetDialogFragment)
  - [CollapsingToolbarLayout](https://developer.android.com/reference/android/support/design/widget/CollapsingToolbarLayout)
  - [CollapsingToolbarLayout.LayoutParams](https://developer.android.com/reference/android/support/design/widget/CollapsingToolbarLayout.LayoutParams)
  - [CoordinatorLayout](https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout)
  - [CoordinatorLayout.Behavior](https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout.Behavior)
  - [CoordinatorLayout.LayoutParams](https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout.LayoutParams)
  - [CoordinatorLayout.SavedState](https://developer.android.com/reference/android/support/design/widget/CoordinatorLayout.SavedState)
  - [FloatingActionButton](https://developer.android.com/reference/android/support/design/widget/FloatingActionButton)
  - [FloatingActionButton.Behavior](https://developer.android.com/reference/android/support/design/widget/FloatingActionButton.Behavior)
  - [FloatingActionButton.OnVisibilityChangedListener](https://developer.android.com/reference/android/support/design/widget/FloatingActionButton.OnVisibilityChangedListener)
  - [NavigationView](https://developer.android.com/reference/android/support/design/widget/NavigationView)
  - [NavigationView.SavedState](https://developer.android.com/reference/android/support/design/widget/NavigationView.SavedState)
  - [Snackbar](https://developer.android.com/reference/android/support/design/widget/Snackbar)
  - [Snackbar.Callback](https://developer.android.com/reference/android/support/design/widget/Snackbar.Callback)
  - [SwipeDismissBehavior](https://developer.android.com/reference/android/support/design/widget/SwipeDismissBehavior)
  - [TabItem](https://developer.android.com/reference/android/support/design/widget/TabItem)
  - [TabLayout](https://developer.android.com/reference/android/support/design/widget/TabLayout)
  - [TabLayout.Tab](https://developer.android.com/reference/android/support/design/widget/TabLayout.Tab)
  - [TabLayout.TabLayoutOnPageChangeListener](https://developer.android.com/reference/android/support/design/widget/TabLayout.TabLayoutOnPageChangeListener)
  - [TabLayout.ViewPagerOnTabSelectedListener](https://developer.android.com/reference/android/support/design/widget/TabLayout.ViewPagerOnTabSelectedListener)
  - [TextInputEditText](https://developer.android.com/reference/android/support/design/widget/TextInputEditText)
  - [TextInputLayout](https://developer.android.com/reference/android/support/design/widget/TextInputLayout)