The widget package contains (mostly visual) UI elements to use on your Application screen. more...
| AbsListView.OnScrollListener | Interface definition for a callback to be invoked when the list or grid has been scrolled. |
| AbsListView.RecyclerListener | A RecyclerListener is used to receive a notification whenever a View is placed inside the RecycleBin's scrap heap. |
| Adapter | An Adapter object acts as a bridge between an AdapterView and the underlying data for that view. |
| AdapterView.OnItemClickListener | Interface definition for a callback to be invoked when an item in this AdapterView has been clicked. |
| AdapterView.OnItemLongClickListener | Interface definition for a callback to be invoked when an item in this view has been clicked and held. |
| AdapterView.OnItemSelectedListener | Interface definition for a callback to be invoked when an item in this view has been selected. |
| AutoCompleteTextView.Validator | This interface is used to make sure that the text entered in this TextView complies to a certain format. |
| Checkable | Defines an extension for views that make them checkable. |
| Chronometer.OnChronometerTickListener | A callback that notifies when the chronometer has incremented on its own. |
| CompoundButton.OnCheckedChangeListener | Interface definition for a callback to be invoked when the checked state of a compound button changed. |
| DatePicker.OnDateChangedListener | The callback used to indicate the user changes the date. |
| ExpandableListAdapter | An adapter that links a ExpandableListView with the underlying data. |
| ExpandableListView.OnChildClickListener | Interface definition for a callback to be invoked when a child in this expandable list has been clicked. |
| ExpandableListView.OnGroupClickListener | Interface definition for a callback to be invoked when a group in this expandable list has been clicked. |
| ExpandableListView.OnGroupCollapseListener | Used for being notified when a group is collapsed |
| ExpandableListView.OnGroupExpandListener | Used for being notified when a group is expanded |
| Filter.FilterListener | Listener used to receive a notification upon completion of a filtering operation. |
| Filterable | Defines a filterable behavior. |
| FilterQueryProvider | This class can be used by external clients of CursorAdapter and CursorTreeAdapter to define how the content of the adapter should be filtered. |
| ListAdapter | Extended Adapter that is the bridge between a ListView and the data that backs the list. |
| MediaController.MediaPlayerControl | |
| MultiAutoCompleteTextView.Tokenizer | |
| PopupWindow.OnDismissListener | Listener that is called when this popup window is dismissed. |
| RadioGroup.OnCheckedChangeListener | Interface definition for a callback to be invoked when the checked radio button changed in this group. |
| RatingBar.OnRatingBarChangeListener | A callback that notifies clients when the rating has been changed. |
| SectionIndexer | Interface that should be implemented on Adapters to enable fast scrolling in an AbsListView between sections of the list. |
| SeekBar.OnSeekBarChangeListener | A callback that notifies clients when the progress level has been changed. |
| SimpleAdapter.ViewBinder | This class can be used by external clients of SimpleAdapter to bind values to views. |
| SimpleCursorAdapter.CursorToStringConverter | This class can be used by external clients of SimpleCursorAdapter to define how the Cursor should be converted to a String. |
| SimpleCursorAdapter.ViewBinder | This class can be used by external clients of SimpleCursorAdapter to bind values fom the Cursor to views. |
| SlidingDrawer.OnDrawerCloseListener | Callback invoked when the drawer is closed. |
| SlidingDrawer.OnDrawerOpenListener | Callback invoked when the drawer is opened. |
| SlidingDrawer.OnDrawerScrollListener | Callback invoked when the drawer is scrolled. |
| SpinnerAdapter | Extended Adapter that is the bridge between a Spinner and its data. |
| TabHost.OnTabChangeListener | Interface definition for a callback to be invoked when tab changed |
| TabHost.TabContentFactory | Makes the content of a tab when it is selected. |
| TextView.OnEditorActionListener | Interface definition for a callback to be invoked when an action is performed on the editor. |
| TimePicker.OnTimeChangedListener | The callback interface used to indicate the time has been adjusted. |
| ViewSwitcher.ViewFactory | Creates views in a ViewSwitcher. |
| WrapperListAdapter | List adapter that wraps another list adapter. |
| AbsListView | Common code shared between ListView and GridView |
| AbsListView.LayoutParams | AbsListView extends LayoutParams to provide a place to hold the view type. |
| AbsoluteLayout | This class is deprecated. Use FrameLayout, RelativeLayout or a custom layout instead. |
| AbsoluteLayout.LayoutParams | Per-child layout information associated with AbsoluteLayout. |
| AbsSeekBar | |
| AbsSpinner | An abstract base class for spinner widgets. |
| AdapterView<T extends Adapter> | An AdapterView is a view whose children are determined by an Adapter. |
| AdapterView.AdapterContextMenuInfo | Extra menu information provided to the onCreateContextMenu(ContextMenu, View, ContextMenuInfo) callback when a context menu is brought up for this AdapterView. |
| AlphabetIndexer | A helper class for adapters that implement the SectionIndexer interface. |
| AnalogClock | This widget display an analogic clock with two hands for hours and minutes. |
| ArrayAdapter<T> | A ListAdapter that manages a ListView backed by an array of arbitrary objects. |
| AutoCompleteTextView | An editable text view that shows completion suggestions automatically while the user is typing. |
| BaseAdapter | Common base class of common implementation for an Adapter that can be used in both ListView (by implementing the specialized ListAdapter interface} and Spinner (by implementing the specialized SpinnerAdapter interface. |
| BaseExpandableListAdapter | Base class for a ExpandableListAdapter used to provide data and Views from some data to an expandable list view. |
| Button |
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| CheckBox | A checkbox is a specific type of two-states button that can be either checked or unchecked. |
| CheckedTextView | An extension to TextView that supports the Checkable interface. |
| Chronometer | Class that implements a simple timer. |
| CompoundButton | A button with two states, checked and unchecked. |
| CursorAdapter | Adapter that exposes data from a Cursor to a ListView widget. |
| CursorTreeAdapter | An adapter that exposes data from a series of Cursors to an ExpandableListView widget. |
| DatePicker | A view for selecting a month / year / day based on a calendar like layout. |
| DialerFilter | |
| DigitalClock | Like AnalogClock, but digital. |
| EditText | EditText is a thin veneer over TextView that configures itself to be editable. |
| ExpandableListView | A view that shows items in a vertically scrolling two-level list. |
| ExpandableListView.ExpandableListContextMenuInfo | Extra menu information specific to an ExpandableListView provided to the onCreateContextMenu(ContextMenu, View, ContextMenuInfo) callback when a context menu is brought up for this AdapterView. |
| Filter | A filter constrains data with a filtering pattern. |
| Filter.FilterResults | Holds the results of a filtering operation. |
| FrameLayout | FrameLayout is designed to block out an area on the screen to display a single item. |
| FrameLayout.LayoutParams | Per-child layout information for layouts that support margins. |
| Gallery | A view that shows items in a center-locked, horizontally scrolling list. |
| Gallery.LayoutParams | Gallery extends LayoutParams to provide a place to hold current Transformation information along with previous position/transformation info. |
| GridView | A view that shows items in two-dimensional scrolling grid. |
| HeaderViewListAdapter | ListAdapter used when a ListView has header views. |
| HorizontalScrollView | Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display. |
| ImageButton | An image button displays an image that can be pressed, or clicked, by the user. |
| ImageSwitcher | |
| ImageView | Displays an arbitrary image, such as an icon. |
| LinearLayout | A Layout that arranges its children in a single column or a single row. |
| LinearLayout.LayoutParams | Per-child layout information associated with ViewLinearLayout. |
| ListView | A view that shows items in a vertically scrolling list. |
| ListView.FixedViewInfo | A class that represents a fixed view in a list, for example a header at the top or a footer at the bottom. |
| MediaController | A view containing controls for a MediaPlayer. |
| MultiAutoCompleteTextView | An editable text view, extending AutoCompleteTextView, that can show completion suggestions for the substring of the text where the user is typing instead of necessarily for the entire thing. |
| MultiAutoCompleteTextView.CommaTokenizer | This simple Tokenizer can be used for lists where the items are separated by a comma and one or more spaces. |
| PopupWindow | A popup window that can be used to display an arbitrary view. |
| ProgressBar | Visual indicator of progress in some operation. |
| RadioButton | A radio button is a two-states button that can be either checked or unchecked. |
| RadioGroup | This class is used to create a multiple-exclusion scope for a set of radio buttons. |
| RadioGroup.LayoutParams | This set of layout parameters defaults the width and the height of the children to WRAP_CONTENT when they are not specified in the XML file. |
| RatingBar | A RatingBar is an extension of SeekBar and ProgressBar that shows a rating in stars. |
| RelativeLayout | A Layout where the positions of the children can be described in relation to each other or to the parent. |
| RelativeLayout.LayoutParams | Per-child layout information associated with RelativeLayout. |
| RemoteViews | A class that describes a view hierarchy that can be displayed in another process. |
| ResourceCursorAdapter | An easy adapter that creates views defined in an XML file. |
| ResourceCursorTreeAdapter | A fairly simple ExpandableListAdapter that creates views defined in an XML file. |
| Scroller | This class encapsulates scrolling. |
| ScrollView | Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display. |
| SeekBar | A SeekBar is an extension of ProgressBar that adds a draggable thumb. |
| SimpleAdapter | An easy adapter to map static data to views defined in an XML file. |
| SimpleCursorAdapter | An easy adapter to map columns from a cursor to TextViews or ImageViews defined in an XML file. |
| SimpleCursorTreeAdapter | An easy adapter to map columns from a cursor to TextViews or ImageViews defined in an XML file. |
| SimpleExpandableListAdapter | An easy adapter to map static data to group and child views defined in an XML file. |
| SlidingDrawer | SlidingDrawer hides content out of the screen and allows the user to drag a handle to bring the content on screen. |
| Spinner | A view that displays one child at a time and lets the user pick among them. |
| TabHost | Container for a tabbed window view. |
| TabHost.TabSpec | A tab has a tab indictor, content, and a tag that is used to keep track of it. |
| TableLayout | A layout that arranges its children into rows and columns. |
| TableLayout.LayoutParams | This set of layout parameters enforces the width of each child to be FILL_PARENT and the height of each child to be WRAP_CONTENT, but only if the height is not specified. |
| TableRow | A layout that arranges its children horizontally. |
| TableRow.LayoutParams | Set of layout parameters used in table rows. |
| TabWidget | Displays a list of tab labels representing each page in the parent's tab collection. |
| TextSwitcher | Specialized ViewSwitcher that contains only children of type TextView. |
| TextView | Displays text to the user and optionally allows them to edit it. |
| TextView.SavedState | User interface state that is stored by TextView for implementing onSaveInstanceState(). |
| TimePicker | A view for selecting the time of day, in either 24 hour or AM/PM mode. |
| Toast | A toast is a view containing a quick little message for the user. The toast class helps you create and show those. |
| ToggleButton | Displays checked/unchecked states as a button with a "light" indicator and by default accompanied with the text "ON" or "OFF". |
| TwoLineListItem | A view group with two children, intended for use in ListViews. |
| VideoView | Displays a video file. |
| ViewAnimator | Base class for a FrameLayout container that will perform animations when switching between its views. |
| ViewFlipper | Simple ViewAnimator that will animate between two or more views that have been added to it. |
| ViewSwitcher | ViewAnimator that switches between two views, and has a factory from which these views are created. |
| ZoomButton | |
| ZoomControls | The ZoomControls class displays a simple set of controls used for zooming and
provides callbacks to register for events. |
| ImageView.ScaleType | Options for scaling the bounds of an image to the bounds of this view. |
| TextView.BufferType |
| RemoteViews.ActionException | Exception to send when something goes wrong executing an action |
