# BaseTransientBottomBar.ContentViewCallback

added in[version 26.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  
belongs to Maven artifact com.android.support:design:27.1.0  

# BaseTransientBottomBar.ContentViewCallback

| 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package is part of the Android[support library](https://developer.android.com/topic/libraries/support-library)which is no longer maintained. The support library has been superseded by[AndroidX](https://developer.android.com/jetpack/androidx)which is part of[Jetpack](https://developer.android.com/jetpack).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


interface
BaseTransientBottomBar.ContentViewCallback
`  
`


`

|--------------------------------------------------------------------------|
| android.support.design.widget.BaseTransientBottomBar.ContentViewCallback |

<br />

*** ** * ** ***

Interface that defines the behavior of the main content of a transient bottom bar.

## Summary

|                                                                                                                            ### Public methods                                                                                                                            ||
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` abstract void` | ` `[animateContentIn](https://developer.android.com/reference/android/support/design/widget/BaseTransientBottomBar.ContentViewCallback#animateContentIn(int, int))`(int delay, int duration) ` Animates the content of the transient bottom bar in.    |
| ` abstract void` | ` `[animateContentOut](https://developer.android.com/reference/android/support/design/widget/BaseTransientBottomBar.ContentViewCallback#animateContentOut(int, int))`(int delay, int duration) ` Animates the content of the transient bottom bar out. |

## Public methods

### animateContentIn

added in[version 26.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void animateContentIn (int delay, 
                int duration)
```

Animates the content of the transient bottom bar in.

<br />

|                  Parameters                   ||
|------------|-----------------------------------|
| `delay`    | `int`: Animation delay. <br />    |
| `duration` | `int`: Animation duration. <br /> |

### animateContentOut

added in[version 26.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void animateContentOut (int delay, 
                int duration)
```

Animates the content of the transient bottom bar out.

<br />

|                  Parameters                   ||
|------------|-----------------------------------|
| `delay`    | `int`: Animation delay. <br />    |
| `duration` | `int`: Animation duration. <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)