Callback

This class can also be created via XML inflation using <adaptive-icon> tag in addition to dynamic creation.

A Drawable that manages a ColorDrawable to make it stateful and backed by a ColorStateList.

A helper class that contains several Drawables and selects which one to use.

Drawable container with only one child element.

A Drawable that manages an array of other Drawables.

An extension of LayerDrawables that is intended to cross-fade between the first and second layer.

This class represents the basic building block for user interface components.

Base class that can be used to implement virtualized lists of items.

AbsSeekBar extends the capabilities of ProgressBar by adding a draggable thumb.

An abstract base class for spinner widgets.

A layout that lets you specify exact locations (x/y coordinates) of its children.

ActionMenuView is a presentation of a series of menu options as a View.

An AdapterView is a view whose children are determined by an Adapter.

Base class for a AdapterView that will perform animations when switching between its views.

Simple ViewAnimator that will animate between two or more views that have been added to it.

This widget displays an analogic clock with two hands for hours and minutes.

Drawable containing a set of Drawable keyframes where the currently displayed keyframe is chosen based on the current state set.

An object used to create frame-by-frame animations, defined by a series of Drawable objects, which can be used as a View object's background.

Provides the glue to show AppWidget views.

An editable text view that shows completion suggestions automatically while the user is typing.

A user interface element the user can tap or click to perform an action.

This class is a calendar widget for displaying and selecting dates.

A checkbox is a specific type of two-states button that can be either checked or unchecked.

An extension to TextView that supports the Checkable interface and displays.

Class that implements a simple timer.

A Drawable that clips another Drawable based on this Drawable's current level value.

A button with two states, checked and unchecked.

Provides a widget for selecting a date.

This widget is a layout that contains several specifically-named child views that handle keyboard entry interpreted as standard phone dialpad digits.

Like AnalogClock, but digital.

A user interface element for entering and modifying text.

A view that shows items in a vertically scrolling two-level list.

* Specialization of EditText for showing and interacting with the extracted text in a full-screen input method.

Helper class for showing "bread crumbs" representing the fragment stack in an activity.

FrameLayout is designed to block out an area on the screen to display a single item.

An implementation of SurfaceView that uses the dedicated surface for displaying OpenGL rendering.

A view that shows items in a center-locked, horizontally scrolling list.

A transparent overlay for gesture input that can be placed on top of other widgets or contain other widgets.

A layout that places its children in a rectangular grid.

A view that shows items in two-dimensional scrolling grid.

Layout container for a view hierarchy that can be scrolled by the user, allowing it to be larger than the physical display.

Displays a button with an image (instead of text) that can be pressed or clicked by the user.

ViewSwitcher that switches between two ImageViews when a new image is set on it.

Displays image resources, for example android.graphics.Bitmap or android.graphics.drawable.Drawable resources.

This class represents a view that holds opaque content from another app that you can inline in your UI.

A Drawable that insets another Drawable by a specified distance or fraction of the content bounds.

A view that renders a virtual Keyboard.

A resource that manages a number of alternate Drawables, each assigned a maximum numerical value.

A layout that arranges other views either horizontally in a single column or vertically in a single row.

Displays a vertically-scrollable collection of views, where each view is positioned immediately below the previous view in the list.

A view containing controls for a MediaPlayer.

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.

A widget that enables the user to select a number from a predefined range.

A user interface element that indicates the progress of an operation.

Widget used to show an image with the standard QuickContact badge and on-click behavior.

A radio button is a two-states button that can be either checked or unchecked.

This class is used to create a multiple-exclusion scope for a set of radio buttons.

A RatingBar is an extension of SeekBar and ProgressBar that shows a rating in stars.

A Layout where the positions of the children can be described in relation to each other or to the parent.

Drawable that shows a ripple effect in response to state changes.

A Drawable that can rotate another Drawable based on the current level value.

A Drawable that changes the size of another Drawable based on its current level value.

A view group that allows the view hierarchy placed within it to be scrolled.

A widget that provides a user interface for the user to enter a search query and submit a request to a search provider.

A SeekBar is an extension of ProgressBar that adds a draggable thumb.

SlidingDrawer hides content out of the screen and allows the user to drag a handle to bring the content on screen.

Space is a lightweight View subclass that may be used to create gaps between components in general purpose layouts.

A view that displays one child at a time and lets the user pick among them.

The view which allows an activity to customize its splash screen exit animation.

Lets you assign a number of graphic images to a single Drawable and swap out the visible item by a string ID value.

Provides a dedicated drawing surface embedded inside of a view hierarchy.

A Switch is a two-state toggle widget.

Container for a tabbed window view.

Displays a list of tab labels representing each page in the parent's tab collection.

A layout that arranges its children into rows and columns.

A layout that arranges its children horizontally.

TextClock can display the current date and/or time as a formatted string.

Specialized android.widget.ViewSwitcher that contains only children of type android.widget.TextView.

A user interface element that displays text to the user.

A TextureView can be used to display a content stream, such as that coming from a camera preview, a video, or an OpenGL scene.

A widget for selecting the time of day, in either 24-hour or AM/PM mode.

Displays checked/unchecked states as a button with a "light" indicator and by default accompanied with the text "ON" or "OFF".

A standard toolbar for use within application content.

An extension of LayerDrawables that is intended to cross-fade between the first and second layer.

Displays contents of TV advertisement services.

Displays contents of interactive TV applications.

Displays TV contents.

A view group with two children, intended for use in ListViews.

Displays a video file.

Base class for a FrameLayout container that will perform animations when switching between its views.

Simple ViewAnimator that will animate between two or more views that have been added to it.

A ViewGroup is a special view that can contain other views (called children.) The view group is the base class for layouts and views containers.

A ViewStub is an invisible, zero-sized View that can be used to lazily inflate layout resources at runtime.

ViewAnimator that switches between two views, and has a factory from which these views are created.

A View that displays web pages.

This widget provides a simple utility for turning a continued long-press event into a series of clicks at some set frequency.

The ZoomControls class displays a simple set of controls used for zooming and provides callbacks to register for events.