| ViewDebug.CapturedViewProperty | This annotation can be used to mark fields and methods to be dumped when the view is captured. | 
| ViewDebug.ExportedProperty | This annotation can be used to mark fields and methods to be dumped by the view server. | 
| ViewDebug.FlagToString | Defines a mapping from a flag to a String. | 
| ViewDebug.IntToString | Defines a mapping from an int value to a String. | 
| ActionMode.Callback | Callback interface for action modes. | 
| ActionProvider.VisibilityListener | 
          Listens to changes in visibility as reported by refreshVisibility(). 
          
    
         | 
      
| Choreographer.FrameCallback | Implement this interface to receive a callback when a new display frame is being rendered. | 
| CollapsibleActionView | 
          When a View implements this interface it will receive callbacks
 when expanded or collapsed as an action view alongside the optional,
 app-specified callbacks to MenuItem.OnActionExpandListener. 
          
    
         | 
      
| ContextMenu | 
          Extension of Menu for context menus providing functionality to modify
 the header of the context menu. 
          
    
         | 
      
| ContextMenu.ContextMenuInfo | Additional information regarding the creation of the context menu. | 
| GestureDetector.OnDoubleTapListener | The listener that is used to notify when a double-tap or a confirmed single-tap occur. | 
| GestureDetector.OnGestureListener | The listener that is used to notify when gestures occur. | 
| InputQueue.Callback | Interface to receive notification of when an InputQueue is associated and dissociated with a thread. | 
| KeyEvent.Callback | |
| LayoutInflater.Factory | |
| LayoutInflater.Factory2 | |
| LayoutInflater.Filter | Hook to allow clients of the LayoutInflater to restrict the set of Views that are allowed to be inflated. | 
| Menu | Interface for managing the items in a menu. | 
| MenuItem | Interface for direct access to a previously created menu item. | 
| MenuItem.OnActionExpandListener | 
          Interface definition for a callback to be invoked when a menu item
 marked with SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is
 expanded or collapsed. 
          
    
         | 
      
| MenuItem.OnMenuItemClickListener | Interface definition for a callback to be invoked when a menu item is clicked. | 
| ScaleGestureDetector.OnScaleGestureListener | The listener for receiving notifications when gestures occur. | 
| SubMenu | 
          Subclass of Menu for sub menus. 
          
    
         | 
      
| SurfaceHolder | Abstract interface to someone holding a display surface. | 
| SurfaceHolder.Callback | A client may implement this interface to receive information about changes to the surface. | 
| SurfaceHolder.Callback2 | 
          Additional callbacks that can be received for SurfaceHolder.Callback. 
          
    
         | 
      
| TextureView.SurfaceTextureListener | This listener can be used to be notified when the surface texture associated with this texture view is available. | 
| View.OnApplyWindowInsetsListener | Listener for applying window insets on a view in a custom way. | 
| View.OnAttachStateChangeListener | Interface definition for a callback to be invoked when this view is attached or detached from its window. | 
| View.OnClickListener | Interface definition for a callback to be invoked when a view is clicked. | 
| View.OnCreateContextMenuListener | Interface definition for a callback to be invoked when the context menu for this view is being built. | 
| View.OnDragListener | Interface definition for a callback to be invoked when a drag is being dispatched to this view. | 
| View.OnFocusChangeListener | Interface definition for a callback to be invoked when the focus state of a view changed. | 
| View.OnGenericMotionListener | Interface definition for a callback to be invoked when a generic motion event is dispatched to this view. | 
| View.OnHoverListener | Interface definition for a callback to be invoked when a hover event is dispatched to this view. | 
| View.OnKeyListener | Interface definition for a callback to be invoked when a hardware key event is dispatched to this view. | 
| View.OnLayoutChangeListener | Interface definition for a callback to be invoked when the layout bounds of a view changes due to layout processing. | 
| View.OnLongClickListener | Interface definition for a callback to be invoked when a view has been clicked and held. | 
| View.OnSystemUiVisibilityChangeListener | Interface definition for a callback to be invoked when the status bar changes visibility. | 
| View.OnTouchListener | Interface definition for a callback to be invoked when a touch event is dispatched to this view. | 
| ViewGroup.OnHierarchyChangeListener | Interface definition for a callback to be invoked when the hierarchy within this view changed. | 
| ViewManager | Interface to let you add and remove child views to an Activity. | 
| ViewParent | Defines the responsibilities for a class that will be a parent of a View. | 
| ViewStub.OnInflateListener | Listener used to receive a notification after a ViewStub has successfully inflated its layout resource. | 
| ViewTreeObserver.OnDrawListener | Interface definition for a callback to be invoked when the view tree is about to be drawn. | 
| ViewTreeObserver.OnGlobalFocusChangeListener | Interface definition for a callback to be invoked when the focus state within the view tree changes. | 
| ViewTreeObserver.OnGlobalLayoutListener | Interface definition for a callback to be invoked when the global layout state or the visibility of views within the view tree changes. | 
| ViewTreeObserver.OnPreDrawListener | Interface definition for a callback to be invoked when the view tree is about to be drawn. | 
| ViewTreeObserver.OnScrollChangedListener | Interface definition for a callback to be invoked when something in the view tree has been scrolled. | 
| ViewTreeObserver.OnTouchModeChangeListener | Interface definition for a callback to be invoked when the touch mode changes. | 
| ViewTreeObserver.OnWindowAttachListener | Interface definition for a callback to be invoked when the view hierarchy is attached to and detached from its window. | 
| ViewTreeObserver.OnWindowFocusChangeListener | Interface definition for a callback to be invoked when the view hierarchy's window focus state changes. | 
| Window.Callback | API from a Window back to its caller. | 
| WindowManager | The interface that apps use to talk to the window manager. | 
| AbsSavedState | 
          A Parcelable implementation that should be used by inheritance
 hierarchies to ensure the state of all classes along the chain is saved. 
          
    
         | 
      
| ActionMode | Represents a contextual mode of the user interface. | 
| ActionProvider | An ActionProvider defines rich menu interaction in a single component. | 
| Choreographer | Coordinates the timing of animations, input and drawing. | 
| ContextThemeWrapper | A ContextWrapper that allows you to modify the theme from what is in the wrapped context. | 
| Display | Provides information about the size and density of a logical display. | 
| DragEvent | Represents an event that is sent out by the system at various times during a drag and drop operation. | 
| FocusFinder | The algorithm used for finding the next focusable view in a given direction from a view that currently has focus. | 
| FrameStats | This is the base class for frame statistics. | 
| GestureDetector | 
          Detects various gestures and events using the supplied MotionEvents. 
          
    
         | 
      
| GestureDetector.SimpleOnGestureListener | A convenience class to extend when you only want to listen for a subset of all the gestures. | 
| Gravity | Standard constants and tools for placing an object within a potentially larger container. | 
| HapticFeedbackConstants | 
          Constants to be used to perform haptic feedback effects via
 performHapticFeedback(int) 
 
          
    
         | 
      
| InputDevice | Describes the capabilities of a particular input device. | 
| InputDevice.MotionRange | 
          Provides information about the range of values for a particular MotionEvent axis. 
          
    
         | 
      
| InputEvent | Common base class for input events. | 
| InputQueue | An input queue provides a mechanism for an application to receive incoming input events. | 
| KeyCharacterMap | Describes the keys provided by a keyboard device and their associated labels. | 
| KeyCharacterMap.KeyData | 
          
      This class was deprecated
      in API level 11.
    instead use getDisplayLabel(int),
 getNumber(int) and get(int, int).
 
          
    
         | 
      
| KeyEvent | Object used to report key and button events. | 
| KeyEvent.DispatcherState | 
          Use with dispatch(Callback, DispatcherState, Object)
 for more advanced key dispatching, such as long presses. 
          
    
         | 
      
| LayoutInflater | 
          Instantiates a layout XML file into its corresponding View
 objects. 
          
    
         | 
      
| MenuInflater | This class is used to instantiate menu XML files into Menu objects. | 
| MotionEvent | Object used to report movement (mouse, pen, finger, trackball) events. | 
| MotionEvent.PointerCoords | Transfer object for pointer coordinates. | 
| MotionEvent.PointerProperties | Transfer object for pointer properties. | 
| OrientationEventListener | Helper class for receiving notifications from the SensorManager when the orientation of the device has changed. | 
| OrientationListener | 
          
      This class was deprecated
      in API level 3.
    use OrientationEventListener instead.
  This class internally uses the OrientationEventListener.
 
          
    
         | 
      
| ScaleGestureDetector | 
          Detects scaling transformation gestures using the supplied MotionEvents. 
          
    
         | 
      
| ScaleGestureDetector.SimpleOnScaleGestureListener | A convenience class to extend when you only want to listen for a subset of scaling-related events. | 
| SoundEffectConstants | 
          Constants to be used to play sound effects via playSoundEffect(int) 
 
          
    
         | 
      
| Surface | Handle onto a raw buffer that is being managed by the screen compositor. | 
| SurfaceView | Provides a dedicated drawing surface embedded inside of a view hierarchy. | 
| TextureView | 
           A TextureView can be used to display a content stream.  | 
      
| TouchDelegate | Helper class to handle situations where you want a view to have a larger touch area than its actual view bounds. | 
| VelocityTracker | Helper for tracking the velocity of touch events, for implementing flinging and other such gestures. | 
| View | 
           This class represents the basic building block for user interface components.  | 
      
| View.AccessibilityDelegate | 
           
 This class represents a delegate that can be registered in a   | 
      
| View.BaseSavedState | 
          Base class for derived classes that want to save and restore their own
 state in onSaveInstanceState(). 
          
    
         | 
      
| View.DragShadowBuilder | Creates an image that the system displays during the drag and drop operation. | 
| View.MeasureSpec | A MeasureSpec encapsulates the layout requirements passed from parent to child. | 
| ViewAnimationUtils | Defines common utilities for working with View's animations. | 
| ViewConfiguration | Contains methods to standard constants used in the UI for timeouts, sizes, and distances. | 
| ViewDebug | 
          Various debugging/tracing tools related to View and the view hierarchy. 
          
    
         | 
      
| ViewGroup | 
           
 A   | 
      
| ViewGroup.LayoutParams | LayoutParams are used by views to tell their parents how they want to be laid out. | 
| ViewGroup.MarginLayoutParams | Per-child layout information for layouts that support margins. | 
| ViewGroupOverlay | A group overlay is an extra layer that sits on top of a ViewGroup (the "host view") which is drawn after all other content in that view (including the view group's children). | 
| ViewOutlineProvider | 
          Interface by which a View builds its Outline, used for shadow casting and clipping. 
          
    
         | 
      
| ViewOverlay | An overlay is an extra layer that sits on top of a View (the "host view") which is drawn after all other content in that view (including children, if the view is a ViewGroup). | 
| ViewPropertyAnimator | This class enables automatic and optimized animation of select properties on View objects. | 
| ViewStub | A ViewStub is an invisible, zero-sized View that can be used to lazily inflate layout resources at runtime. | 
| ViewTreeObserver | A view tree observer is used to register listeners that can be notified of global changes in the view tree. | 
| Window | Abstract base class for a top-level window look and behavior policy. | 
| WindowAnimationFrameStats | This class contains window animation frame statistics. | 
| WindowContentFrameStats | This class contains window content frame statistics. | 
| WindowId | Safe identifier for a window. | 
| WindowId.FocusObserver | 
          Subclass for observing changes to the focus state of an WindowId. 
          
    
         | 
      
| WindowInsets | Describes a set of insets for window content. | 
| WindowManager.LayoutParams | 
| ViewDebug.HierarchyTraceType | This enum was deprecated in API level 16. This enum is now unused | 
| ViewDebug.RecyclerTraceType | This enum was deprecated in API level 16. This enum is now unused | 
| InflateException | This exception is thrown by an inflater on error conditions. | 
| KeyCharacterMap.UnavailableException | 
          Thrown by load(int) when a key character map could not be loaded. 
          
    
         | 
      
| Surface.OutOfResourcesException | 
          Exception thrown when a Canvas couldn't be locked with lockCanvas(Rect), or
 when a SurfaceTexture could not successfully be allocated. 
          
    
         | 
      
| SurfaceHolder.BadSurfaceTypeException | 
          Exception that is thrown from lockCanvas() when called on a Surface
 whose type is SURFACE_TYPE_PUSH_BUFFERS. 
          
    
         | 
      
| WindowManager.BadTokenException | 
          Exception that is thrown when trying to add view whose
 WindowManager.LayoutParams token
 is invalid. 
          
    
         | 
      
| WindowManager.InvalidDisplayException | 
          Exception that is thrown when calling addView(View, ViewGroup.LayoutParams) to a secondary display that cannot
 be found. 
          
    
         |