Android - An Open Handset Alliance Project

android.widget
public abstract class

android.widget.AdapterView

java.lang.Object
	android.view.View			Drawable.Callback KeyEvent.Callback
		android.view.ViewGroup		ViewManager ViewParent
			android.widget.AdapterView

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

See ListView, GridView, Spinner and Gallery for commonly used subclasses of AdapterView.

Also see ViewGroup.LayoutParams for layout attributes.

Nested Classes

AdapterView.ContextMenuInfo	Extra menu information provided to the onPopulateContextMenu(ContextMenu, View, Object) callback when a context menu is brought up for this AdapterView.
AdapterView.MyDataSetObserver
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.

Known Direct Subclasses

AbsListView, Gallery, Spinner

Known Indirect Subclasses

ExpandableListView, GridView, ListView

Summary

XML Attributes inherited from class android.view.ViewGroup

android:clipChildren, android:clipToPadding

Attribute name	Related methods
android:clipChildren	setClipChildren(boolean)	Defines whether a child is limited to draw inside of its bounds or not.
android:clipToPadding	setClipToPadding(boolean)	Defines whether the ViewGroup will clip its drawing surface so as to exclude the padding area.

XML Attributes inherited from class android.view.View

Attribute name	Related methods
android:background	setBackground(int)	A drawable to use as the background.
android:clickable	setClickable(boolean)	Defines whether this view reacts to click events.
android:drawingCacheQuality	setDrawingCacheQuality(int)	Defines the quality of translucent drawing caches.
android:fadingEdge	setVerticalFadingEdgeEnabled(boolean)	Defines which edges should be fadeded on scrolling.
android:fadingEdgeLength	getVerticalFadingEdgeLength()	Defines the length of the fading edges.
android:fitStatusBar		Boolean internal attribute to adjust view layout based on the status bar location.
android:focusType	setFocusType(int)	Sets the circumstances under which this view will take focus.
android:focusable	setFocusable(boolean)	Boolean that controls whether a view can take focus.
android:focusableInTouchMode	setFocusableInTouchMode(boolean)	Boolean that controls whether a view can take focus while in touch mode.
android:freezeDisabled	setFreezeDisabled(boolean)	If set, no icicle will be saved for this view when it is being frozen.
android:id	setId(int)	Supply an identifier name for this view, to later retrieve it with View.findViewById() or Activity.findViewById().
android:nextFocusDown		Defines the next view to give focus to when the next focus is FOCUS_DOWN If the reference refers to a view that does not exist or is part of a hierarchy that is invisible, a RuntimeException will result when the reference is accessed.
android:nextFocusLeft		Defines the next view to give focus to when the next focus is FOCUS_LEFT.
android:nextFocusRight		Defines the next view to give focus to when the next focus is FOCUS_RIGHT If the reference refers to a view that does not exist or is part of a hierarchy that is invisible, a RuntimeException will result when the reference is accessed.
android:nextFocusUp		Defines the next view to give focus to when the next focus is FOCUS_UP If the reference refers to a view that does not exist or is part of a hierarchy that is invisible, a RuntimeException will result when the reference is accessed.
android:padding	setPadding(int,int,int,int)	Sets the padding, in pixels, of all four edges.
android:paddingBottom	setPadding(int,int,int,int)	Sets the padding, in pixels, of the bottom edge; see padding.
android:paddingLeft	setPadding(int,int,int,int)	Sets the padding, in pixels, of the left edge; see padding.
android:paddingRight	setPadding(int,int,int,int)	Sets the padding, in pixels, of the right edge; see padding.
android:paddingTop	setPadding(int,int,int,int)	Sets the padding, in pixels, of the top edge; see padding.
android:scrollX		The initial horizontal scroll offset, in pixels.
android:scrollY		The initial vertical scroll offset, in pixels.
android:scrollbarDefaultDelayBeforeFade		Delay in milliseconds before the scrollbars disappear.
android:scrollbarFadeDuration		Duration in milliseconds of the fade when the scrollbars disappear.
android:scrollbarSize		Sets the width of vertical scrollbars and height of horizontal scrollbars.
android:scrollbarThumbHorizontal		Drawable for horizontal scrollbars' thumb.
android:scrollbarThumbVertical		Drawable for vertical scrollbars' thumb.
android:scrollbarTrackHorizontal		Drawable for horizontal scrollbars' track.
android:scrollbarTrackVertical		Drawable for vertical scrollbars' track.
android:scrollbars		Defines which scrollbars should be displayed on scrolling or not.
android:visibility	setVisibility(int)	Controls the initial visibility of the view.

Constants

			Value
int	SYNC_FIRST_POSITION	Sync based on the first row	1	0x00000001
int	SYNC_MAX_DURATION_MILLIS	Maximum amount of time to spend in findSyncPosition()	100	0x00000064
int	SYNC_SELECTED_POSITION	Sync based on the selected row	0	0x00000000

Constants inherited from class android.view.ViewGroup

FLAG_SUPPORT_STATIC_TRANSFORMATIONS, PERSISTENT_ALL_CACHES, PERSISTENT_ANIMATION_CACHE, PERSISTENT_NO_CACHE, PERSISTENT_SCROLLING_CACHE

			Value
int	FLAG_SUPPORT_STATIC_TRANSFORMATIONS	When set, this ViewGroup supports static transformations on children; this causes getChildStaticTransformation(View, android.view.animation.Transformation) to be invoked when a child is drawn.	2048	0x00000800
int	PERSISTENT_ALL_CACHES	Used to indicate that all drawing caches should be kept in memory.	3	0x00000003
int	PERSISTENT_ANIMATION_CACHE	Used to indicate that the animation drawing cache should be kept in memory.	1	0x00000001
int	PERSISTENT_NO_CACHE	Used to indicate that no drawing cache should be kept in memory.	0	0x00000000
int	PERSISTENT_SCROLLING_CACHE	Used to indicate that the scrolling drawing cache should be kept in memory.	2	0x00000002

Constants inherited from class android.view.View

DRAWING_CACHE_QUALITY_AUTO, DRAWING_CACHE_QUALITY_HIGH, DRAWING_CACHE_QUALITY_LOW, FOCUS_BACKWARD, FOCUS_DOWN, FOCUS_FORWARD, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_UP, GONE, INVISIBLE, NORMAL_FOCUS, NO_ID, VIEW_LOG_TAG, VISIBLE, WEAK_FOCUS

			Value
int	DRAWING_CACHE_QUALITY_AUTO	Enables automatic quality mode for the drawing cache.	0	0x00000000
int	DRAWING_CACHE_QUALITY_HIGH	Enables high quality mode for the drawing cache.	1048576	0x00100000
int	DRAWING_CACHE_QUALITY_LOW	Enables low quality mode for the drawing cache.	524288	0x00080000
int	FOCUS_BACKWARD	Use with focusSearch(int).	1	0x00000001
int	FOCUS_DOWN	Use with focusSearch(int).	130	0x00000082
int	FOCUS_FORWARD	Use with focusSearch(int).	2	0x00000002
int	FOCUS_LEFT	Use with focusSearch(int).	17	0x00000011
int	FOCUS_RIGHT	Use with focusSearch(int).	66	0x00000042
int	FOCUS_UP	Use with focusSearch(int).	33	0x00000021
int	GONE	This view is invisible, and it doesn't take any space for layout purposes.	8	0x00000008
int	INVISIBLE	This view is invisible, but it still takes up space for layout purposes.	4	0x00000004
int	NORMAL_FOCUS	This view wants keystrokes.	0	0x00000000
int	NO_ID	Used to mark a View that has no ID.	-1	0xffffffff
String	VIEW_LOG_TAG	The logging tag used by this class with android.util.Log.	"View"
int	VISIBLE	This view is visible.	0	0x00000000
int	WEAK_FOCUS	This view wants keystrokes, but only if none of its children has focus.	2	0x00000002

Fields

protected	boolean	mDataChanged	True if the data has changed since the last layout
protected	View	mEmptyView	View to show if there is nothing in the list
protected	int	mFirstPosition	The position of the first child displayed
protected	boolean	mInLayout
protected	int	mItemCount
protected	boolean	mNeedSync	True if we need to sync to mSyncRowId
protected	int	mNextSelectedPosition	The index within the adapter's data set of the item to select during the next layout.
protected	long	mNextSelectedRowId	The item id of the item to select during the next layout.
protected	OnItemClickListener	mOnItemClickListener
protected	OnItemLongClickListener	mOnItemLongClickListener
protected	OnItemSelectedListener	mOnItemSelectedListener
protected	int	mSelectedPosition	The index within the adapter's data set of the currently selected item.
protected	long	mSelectedRowId	The item id of the currently selected item.
protected	int	mSpecificTop	The offset in pixels form the top of the AdapterView to the top of the view to select during the next layout.
protected	int	mSyncMode	Indicates whether to sync based on the selection or position
protected	int	mSyncPosition	Position from which to start looking for mSyncRowId
protected	long	mSyncRowId	Row id to look for when data has changed

Fields inherited from class android.view.ViewGroup

mDisappearingChildren, mGroupFlags, mOnHierarchyChangeListener, mPersistentDrawingCache

Fields inherited from class android.view.View

mBottom, mContext, mLayoutParams, mLeft, mLocation, mOnClickListener, mOnFocusChangeListener, mOnLongClickListener, mOnPopulateContextMenuListener, mPaddingBottom, mPaddingLeft, mPaddingRight, mPaddingTop, mParent, mRight, mScrollX, mScrollY, mTag, mTop

protected		int	mBottom	The distance in pixels from the top edge of this view's parent to the bottom edge of this view.
protected		Context	mContext	The application environment this view lives in.
protected		LayoutParams	mLayoutParams	The layout parameters associated with this view and used by the parent ViewGroup to determine how this view should be laid out.
protected		int	mLeft	The distance in pixels from the left edge of this view's parent to the left edge of this view.
protected	final	int[]	mLocation	Used to store a pair of coordinates, for instance returned values returned by getLocationInWindow(int[]).
protected		OnClickListener	mOnClickListener	Listener used to dispatch click events.
protected		OnFocusChangeListener	mOnFocusChangeListener	Listener used to dispatch focus change events.
protected		OnLongClickListener	mOnLongClickListener	Listener used to dispatch long click events.
protected		OnPopulateContextMenuListener	mOnPopulateContextMenuListener	Listener used to build the context menu.
protected		int	mPaddingBottom	The bottom padding in pixels, that is the distance in pixels between the bottom edge of this view and the bottom edge of its content.
protected		int	mPaddingLeft	The left padding in pixels, that is the distance in pixels between the left edge of this view and the left edge of its content.
protected		int	mPaddingRight	The right padding in pixels, that is the distance in pixels between the right edge of this view and the right edge of its content.
protected		int	mPaddingTop	The top padding in pixels, that is the distance in pixels between the top edge of this view and the top edge of its content.
protected		ViewParent	mParent	The parent this view is attached to.
protected		int	mRight	The distance in pixels from the left edge of this view's parent to the right edge of this view.
protected		int	mScrollX	The offset, in pixels, by which the content of this view is scrolled horizontally.
protected		int	mScrollY	The offset, in pixels, by which the content of this view is scrolled vertically.
protected		Object	mTag	The view's tag.
protected		int	mTop	The distance in pixels from the top edge of this view's parent to the top edge of this view.

Public Constructors

					AdapterView(Context context)
					AdapterView(Context context, AttributeSet attrs, Map inflateParams)
					AdapterView(Context context, AttributeSet attrs, Map inflateParams, int defStyle)

Public Methods

		void	addView(View child, int index)
			Adds a child view that already has layout parameters set on it.
		void	addView(View child, LayoutParams params)
			Adds a child view with the specified layout parameters.
		void	addView(View child, int index, LayoutParams params)
			Adds a child view with the specified layout parameters.
		void	addView(View child)
			Adds a child view that already has layout parameters set on it.
abstract		T	getAdapter()
		int	getCount()
		View	getEmptyView()
	final	OnItemClickListener	getOnItemClickListener()
	final	OnItemLongClickListener	getOnItemLongClickListener()
	final	OnItemSelectedListener	getOnItemSelectedListener()
		int	getPositionForView(View view)
			Get the position within the adapter's data set for the view, where view is a an adapter item or a descendant of an adapter item.
		Object	getSelectedItem()
		long	getSelectedItemId()
		int	getSelectedItemPosition()
			Return the position of the currently selected item within the adapter's data set
abstract		View	getSelectedView()
		Object	obtainItem(int position)
			Gets the data associated with the specified position in the list.
		long	obtainItemId(int position)
		boolean	performItemClick(View v, int position, long id)
			Call the OnItemClickListener, if it is defined.
		void	removeAllViews()
			Call this method to remove all child views from the ViewGroup.
		void	removeView(View view)

		void	removeViewAt(int index)
			Removes the view at the specified position in the group.
abstract		void	setAdapter(T adapter)
		void	setEmptyView(View emptyView)
			Sets the view to show if the adapter is empty
		void	setOnClickListener(OnClickListener l)
			Register a callback to be invoked when this view is clicked.
		void	setOnItemClickListener(OnItemClickListener l)
			Register a callback to be invoked when an item in this AdapterView has been clicked.
		void	setOnItemLongClickListener(OnItemLongClickListener l)
			Register a callback to be invoked when an item in this AdapterView has been clicked and held
		void	setOnItemSelectedListener(OnItemSelectedListener l)
			Register a callback to be invoked when an item in this AdapterView has been selected.
abstract		void	setSelection(int position)
			Sets the currently selected item

Protected Methods

				boolean	canAnimate()
					Indicates whether the view group has the ability to animate its children after the first layout.
				void	checkFocus()
				void	dispatchFreeze(SparseArray container)
					Override to prevent freezing of any views created by the adapter.
				void	dispatchThaw(SparseArray container)
					Override to prevent thawing of any views created by the adapter.
				int	findSyncPosition()
					Searches the adapter for a position matching mSyncRowId.
				void	handleDataChanged()
				int	lookForSelectablePosition(int position, boolean lookDown)
					Find a position that can be selected (i.e., is not a separator).
				void	rememberSyncState()
					Remember enough information to restore the screen state when the data has changed.
				void	selectionChanged()
				void	setNextSelectedPositionInt(int position)
					Utility to keep mNextSelectedPosition and mNextSelectedRowId in sync
				void	setSelectedPositionInt(int position)
					Utility to keep mSelectedPosition and mSelectedRowId in sync

Methods inherited from class android.view.ViewGroup

addView, addView, addView, addView, addViewInLayout, addViewInLayout, addsStatesFromChildren, attachLayoutAnimationParameters, attachViewToParent, bringChildToFront, canAnimate, checkLayoutParams, childDrawableStateChanged, cleanupLayoutState, clearChildFocus, clearDisappearingChildren, clearFocus, debug, detachAllViewsFromParent, detachViewFromParent, detachViewFromParent, dispatchDraw, dispatchFreeze, dispatchFreezeSelfOnly, dispatchKeyEvent, dispatchThaw, dispatchThawSelfOnly, dispatchTouchEvent, dispatchTrackballEvent, dispatchUnhandledMove, dispatchWindowFocusChanged, dispatchWindowVisibilityChanged, findFocus, focusSearch, focusableViewAvailable, gatherTransparentRegion, generateLayoutParams, getChildAt, getChildCount, getChildMeasureSpec, getChildStaticTransformation, getChildVisibleRect, getFocusedChild, getLayoutAnimation, getLayoutAnimationListener, getPeristentDrawingCache, hasFocus, indexOfChild, invalidateChild, invalidateChildInParent, isAlwaysDrawnWithCacheEnabled, isAnimationCacheEnabled, isChildrenDrawnWithCacheEnabled, isKeepAnimations, measureChild, measureChildWithMargins, measureChildren, offsetDescendantRectToMyCoords, offsetRectIntoDescendantCoords, onCreateDrawableState, onInterceptTouchEvent, onLayout, removeAllViews, removeAllViewsInLayout, removeDetachedView, removeView, removeViewAt, removeViewInLayout, requestChildFocus, requestChildRectangleOnScreen, requestFocus, requestTransparentRegion, scheduleLayoutAnimation, setAddsStatesFromChildren, setAlwaysDrawnWithCacheEnabled, setAnimationCacheEnabled, setChildrenDrawingCacheEnabled, setChildrenDrawnWithCacheEnabled, setClipChildren, setClipToPadding, setKeepAnimations, setLayoutAnimation, setLayoutAnimationListener, setOnHierarchyChangeListener, setPadding, setPersistentDrawingCache, setSelected, showContextMenuForChild, startLayoutAnimation, updateViewLayout

				void	addView(View child, int index)
					Adds a child view that already has layout parameters set on it.
				void	addView(View child, int index, LayoutParams params)
					Adds a child view with the specified layout parameters.
				void	addView(View child, LayoutParams params)
					Adds a child view with the specified layout parameters.
				void	addView(View child)
					Adds a child view that already has layout parameters set on it.
				boolean	addViewInLayout(View child, int index, LayoutParams params)
					Adds a view during layout.
				boolean	addViewInLayout(View child, int index, LayoutParams params, boolean preventRequestLayout)
					Adds a view during layout.
				boolean	addsStatesFromChildren()
					Returns whether this ViewGroup's drawable states also include its children's drawable states.
				void	attachLayoutAnimationParameters(View child, LayoutParams params, int index, int count)
					Subclasses should override this method to set layout animation parameters on the supplied child.
				void	attachViewToParent(View child, int index, LayoutParams params)
					Attaches a view to this view group.
				void	bringChildToFront(View child)
					Change the z order of the child so it's on top of all other children
				boolean	canAnimate()
					Indicates whether the view group has the ability to animate its children after the first layout.
				boolean	checkLayoutParams(LayoutParams p)

				void	childDrawableStateChanged(View child)
					If {link #addsStatesFromChildren} is true, refreshes this group's drawable state (to include the states from its children).
				void	cleanupLayoutState(View child)
					Prevents the specified child to be laid out during the next layout pass.
				void	clearChildFocus(View child)
					Called when a child of this parent is giving up focus
				void	clearDisappearingChildren()
					Removes any pending animations for views that have been removed.
				void	clearFocus()
					Called when this view wants to give up focus.
				void	debug(int depth)
					Prints information about this view in the log output, with the tag VIEW_LOG_TAG.
				void	detachAllViewsFromParent()
					Detaches all views from theparent.
				void	detachViewFromParent(View child)
					Detaches a view from its parent.
				void	detachViewFromParent(int index)
					Detaches a view from its parent.
				void	dispatchDraw(Canvas canvas)
					Called by draw to draw the child views.
				void	dispatchFreeze(SparseArray container)
					Called by freeze(SparseArray) to store the icicles for this view and its children.
				void	dispatchFreezeSelfOnly(SparseArray container)
					Perform dispatching of a freeze() to only this view, not to its children.
				boolean