Android - An Open Handset Alliance Project

android.view
public static interface

android.view.KeyEvent.Callback

Known Indirect Subclasses

AbsListView, AbsoluteLayout, Activity, ActivityGroup, AdapterView, AlertDialog, AnalogClock, AutoCompleteTextView, Button, CheckBox, Chronometer, CompoundButton, DatePicker, DatePickerDialog, DialerFilter, Dialog, DigitalClock, EditText, ExpandableListActivity, ExpandableListView, FrameLayout, Gallery, GridView, ImageButton, ImageSwitcher, ImageView, LauncherActivity, LinearLayout, ListActivity, ListMenuItemView, ListView, MapActivity, MapView, ProgressBar, ProgressDialog, RadioButton, RadioGroup, RelativeLayout, ScaleLayout, ScrollView, Spinner, SurfaceView, TabActivity, TabHost, TabWidget, TableLayout, TableRow, TextSwitcher, TextView, Ticker, TimePicker, TimePickerDialog, TwoLineListItem, VideoView, View, ViewAnimator, ViewFlipper, ViewGroup, ViewSwitcher, WebView, ZoomDialog, ZoomSlider

AbsListView	Common code shared between ListView and GridView.
AbsoluteLayout	A layout that lets you specify exact locations (x/y coordinates) of its children.
Activity	An activity is a single, focused thing that the user can do.
ActivityGroup	A screen that contains and runs multiple embedded activities.
AdapterView	An AdapterView is a view whose children are determined by an Adapter.
AlertDialog	A subclass of Dialog that can display one, two or three buttons.
AnalogClock	This widget display an analogic clock with two hands for hours and minutes.
AutoCompleteTextView	An editable text view that shows completion suggestions automatically while the user is typing.
Button	`Button` represents a push-button widget.
CheckBox	A checkbox is a specific type of two-states button that can be either checked or unchecked.
Chronometer	Class that implements a simple timer.
CompoundButton	A button with two states, checked and unchecked.
DatePicker	A view for selecting a month / year / day based on a calendar like layout.
DatePickerDialog	A simple dialog containing an DatePicker.
DialerFilter	Also see ViewGroup.LayoutParams for layout attributes.
Dialog	Base class for Dialogs
DigitalClock	Like AnalogClock, but digital.
EditText	EditText is a thin veneer over TextView that configures itself to be editable.
ExpandableListActivity	An activity that displays an expandable list of items by binding to a data source implementing the ExpandableListAdapter, and exposes event handlers when the user selects an item.
ExpandableListView	A view that shows items in a vertically scrolling two-level list.
FrameLayout	FrameLayout is designed to block out an area on the screen to display a single item.
Gallery	A view that shows items in a center-locked, horizontally scrolling list.
GridView	A view that shows items in two-dimensional scrolling grid.
ImageButton	An image button displays an image that can be pressed, or clicked, by the user.
ImageSwitcher	Also see ViewGroup.LayoutParams for layout attributes.
ImageView	Displays an arbitrary image, such as an icon.
LauncherActivity	Displays a list of all activities which can be performed for a given intent.
LinearLayout	A Layout that arranges its children in a single column or a single row.
ListActivity	An activity that displays a list of items by binding to a data source such as an array or Cursor, and exposes event handlers when the user selects an item.
ListMenuItemView	The item view for each item in the ListView-based MenuViews.
ListView	A view that shows items in a vertically scrolling list.
MapActivity	Base class with code to manage the boring necessities of any activity that displays a MapView: Activity lifecycle management Setup and teardown of services behind a MapView A subclass should create its own MapView in onCreate(Bundle).
MapView	A View which displays a map.
ProgressBar	Visual indicator of progress in some operation.
ProgressDialog	A dialog showing a progress indicator and an optional text message or view.
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.
RelativeLayout	A Layout where the positions of the children can be described in relation to each other or to the parent.
ScaleLayout	Also see ViewGroup.LayoutParams for layout attributes.
ScrollView	Also see ViewGroup.LayoutParams for layout attributes.
Spinner	A view that displays one child at a time and lets the user pick among them.
SurfaceView	Provides a dedicated drawing surface embedded inside of a view hierarchy.
TabActivity	A screen that contains and runs multiple embedded activities or views.
TabHost	Container for a tabbed window view.
TabWidget	Displays a list of tab labels representing each page in the parent's tab collection.
TableLayout	A layout that arranges its children into rows and columns.
TableRow	A layout that arranges its children horizontally.
TextSwitcher	A TextSwitcher is a specialized ViewSwitcher that contains only children of type TextView.
TextView	Displays text to the user and optionally allows them to edit it.
Ticker	A Ticker is a view that scrolls its child horizontally within its bounds.
TimePicker	A view for selecting the time of day, in either 24 hour or AM/PM mode.
TimePickerDialog	A dialog that prompts the user for the time of day using a TimePicker.
TwoLineListItem	A view group with two children, intended for use in ListViews.
VideoView	Displays a video file.
View	The `View` class represents the basic UI building block.
ViewAnimator	Also see ViewGroup.LayoutParams for layout attributes.
ViewFlipper	Shows only one child at a time.
ViewGroup	A `ViewGroup` is a special view that can contain other views (called children).
ViewSwitcher	Shows only one child at a time.
WebView	The Android SDK provides a custom scheme to load assets from the application's .apk file in WebView.
ZoomDialog	A Dialog that is used to display the ZoomSlider.
ZoomSlider	The `ZoomSlider` class displays a vertical slider with marks to denote different zoom levels.

Summary

Public Methods

				boolean	onKeyDown(int keyCode, KeyEvent event)
					Called when a key down event has occurred.
				boolean	onKeyMultiple(int keyCode, int count, KeyEvent event)
					Called when multiple down/up pairs of the same key have occurred in a row.
				boolean	onKeyUp(int keyCode, KeyEvent event)
					Called when a key up event has occurred.

Details

Public Methods

public boolean onKeyDown(int keyCode, KeyEvent event)

Called when a key down event has occurred.

Parameters

keyCode	The value in event.getKeyCode().
event	Description of the key event.

Returns

If you handled the event, return true. If you want to allow the event to be handled by the next receiver, return false.

public boolean onKeyMultiple(int keyCode, int count, KeyEvent event)

Called when multiple down/up pairs of the same key have occurred in a row.

Parameters

keyCode	The value in event.getKeyCode().
count	Number of pairs as returned by event.getRepeatCount().
event	Description of the key event.

Returns

If you handled the event, return true. If you want to allow the event to be handled by the next receiver, return false.

public boolean onKeyUp(int keyCode, KeyEvent event)

Called when a key up event has occurred.

Parameters

keyCode	The value in event.getKeyCode().
event	Description of the key event.

Returns

If you handled the event, return true. If you want to allow the event to be handled by the next receiver, return false.

Android - An Open Handset Alliance Project

Documentation

Goodies

android.view.KeyEvent.Callback

Known Indirect Subclasses

Summary

Public Methods

Details

Public Methods

public boolean onKeyDown(int keyCode, KeyEvent event)

Parameters

Returns

public boolean onKeyMultiple(int keyCode, int count, KeyEvent event)

Parameters

Returns

public boolean onKeyUp(int keyCode, KeyEvent event)

Parameters

Returns


e.g. "intent" or "activity"