android.view
Class ViewGroup

java.lang.Object
  android.view.View
      android.view.ViewGroup

All Implemented Interfaces:

Drawable.Callback, KeyEvent.Callback, ViewManager, ViewParent

Direct Known Subclasses:

AbsoluteLayout, AdapterView, FrameLayout, LinearLayout, RelativeLayout, TabWidget

public abstract class ViewGroup
extends View
implements ViewParent, ViewManager

Nested Class Summary

static class	ViewGroup.LayoutParams
static class	ViewGroup.MarginLayoutParams
static interface	ViewGroup.OnHierarchyChangeListener

Nested classes/interfaces inherited from class android.view.View

View.MeasureSpec, View.OnClickListener, View.OnFocusChangeListener, View.OnKeyListener

Field Summary

protected ArrayList	mDisappearingChildren
protected ViewGroup.OnHierarchyChangeListener	mOnHierarchyChangeListener

Fields inherited from class android.view.View

FIRST_STATE_SET, FOCUS_BACKWARD, FOCUS_DOWN, FOCUS_FORWARD, FOCUS_LEFT, FOCUS_RIGHT, FOCUS_UP, GONE, INVISIBLE, LAST_STATE_SET, mBottom, mContext, mCurrentAnimation, MIDDLE_STATE_SET, mLayoutParams, mLeft, mMeasuredHeight, mMeasuredWidth, mOnClickListener, mOnFocusChangeListener, mPaddingBottom, mPaddingLeft, mPaddingRight, mPaddingTop, mParent, mRight, mScrollX, mScrollY, mTag, mTop, mWindowLeft, mWindowTop, NO_ID, NORMAL_FOCUS, PRESSED_STATE_DURATION, PRESSED_STATE_SET, SINGLE_STATE_SET, VIEW_LOG_TAG, VISIBLE, WEAK_FOCUS

Constructor Summary

ViewGroup(Context context)

ViewGroup(Context context, AttributeSet attrs, Map inflateParams)

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

Method Summary

void	addView(View child)
void	addView(View child, int index)
void	addView(View child, int index, ViewGroup.LayoutParams params)
void	addView(View child, ViewGroup.LayoutParams params)
protected boolean	addViewInLayout(View child, int index, ViewGroup.LayoutParams params)
void	bringChildToFront(View child)
protected boolean	checkLayoutParams(ViewGroup.LayoutParams p)
void	clearChildFocus(View child)
void	clearDisappearingChildren()
void	clearFocus()
protected void	debug(int depth)
protected void	dispatchDraw(Canvas canvas)
boolean	dispatchKeyEvent(KeyEvent event)
boolean	dispatchMotionEvent(MotionEvent ev)
boolean	dispatchUnhandledMove(View focused, int direction)
void	dispatchWindowFocusChanged(boolean hasFocus)
View	findFocus()
protected View	findViewTraversal(int id)
protected View	findViewWithTagTraversal(Object tag)
void	focusableViewAvailable(View v)
View	focusSearch(View v, int direction)
protected void	gatherTransparentRegion(Region region)
ViewGroup.LayoutParams	generateLayoutParams(AttributeSet attrs)
View	getChildAt(int index)
int	getChildCount()
static int	getChildMeasureSpec(int spec, int padding, int childDimension)
protected boolean	getChildStaticTransformation(View child, Transformation t)
boolean	getChildVisibleRect(View child, Rect r, Point offset)
View	getFocusedChild()
boolean	hasFocus()
int	indexOfChild(View child)
void	invalidateChild(View child, Rect dirty)
protected void	measureChild(View child, int parentWidthMeasureSpec, int parentHeightMeasureSpec)
protected void	measureChildren(int widthMeasureSpec, int heightMeasureSpec)
protected void	measureChildWithMargins(View child, int parentWidthMeasureSpec, int widthUsed, int parentHeightMeasureSpec, int heightUsed)
boolean	onInterceptMotionEvent(MotionEvent ev)
protected abstract void	onLayout(boolean flag, int i, int j, int k, int l, int i1, int j1)
void	removeAllViews()
void	removeAllViewsInLayout()
void	removeView(View view)
void	removeViewAt(int index)
void	removeViewInLayout(View view)
void	requestChildFocus(View child, View focused)
boolean	requestChildRectangleOnScreen(View child, Rect rectangle)
void	requestFocus(int direction)
void	requestTransparentRegion(View child)
boolean	scrollContentBy(int x, int y)
void	setClipChildren(boolean clipChildren)
void	setClipToPadding(boolean clipToPadding)
void	setOnHierarchyChangeListener(ViewGroup.OnHierarchyChangeListener listener)
void	setSelected(boolean selected)
boolean	takeFocus(int direction)
void	updateViewLayout(View view, ViewGroup.LayoutParams params)

Methods inherited from class android.view.View

applyDrawableToTransparentRegion, awakenScrollBars, awakenScrollBars, bringToFront, clearAnimation, computeHorizontalScrollExtent, computeHorizontalScrollOffset, computeHorizontalScrollRange, computeScroll, computeVerticalScrollExtent, computeVerticalScrollOffset, computeVerticalScrollRange, copyWindowBitmap, createDrawableState, debug, debugIndent, draw, drawableStateChanged, findParentViewOfType, findViewById, findViewWithTag, focusSearch, focusSearchInDescendants, forceLayout, getAbsoluteLocationOnScreen, getBackground, getBaseline, getBlockDescendantFocus, getBlockUnmatchedKeyUps, getBottom, getContext, getCurrentAnimation, getDefaultSize, getDrawableState, getDrawingRect, getDrawingTime, getFocusables, getFocusType, getGlobalVisibleRect, getGlobalVisibleRect, getHeight, getHitRect, getHorizontalFadingEdgeLength, getId, getInterestingRect, getLayoutParams, getLeft, getLocalVisibleRect, getLocationOnScreen, getMeasuredHeight, getMeasuredWidth, getOnFocusChangeListener, getPaddingBottom, getPaddingLeft, getPaddingRight, getPaddingTop, getParent, getResources, getRight, getRootView, getScrollX, getScrollY, getTag, getTop, getVerticalFadingEdgeLength, getVisibility, getWidth, getWindowBottom, getWindowFrame, getWindowLeft, getWindowRight, getWindowSession, getWindowToken, getWindowTop, hasBackground, hasWindowFocus, initializeFadingEdge, initializeScrollbars, invalidate, invalidate, invalidate, invalidateDrawable, isEnabled, isFocusable, isFocused, isHorizontalFadingEdgeEnabled, isHorizontalScrollBarEnabled, isLayoutRequested, isRootNamespace, isSelected, isVerticalFadingEdgeEnabled, isVerticalScrollBarEnabled, layout, measure, mergeStates, offsetLeftAndRight, offsetTopAndBottom, onAttachedToWindow, onDetachedFromWindow, onDraw, onDrawAfterChildren, onDrawBackground, onFinishInflate, onFocusChanged, onKeyDown, onKeyUp, onMeasure, onMotionEvent, onScrollChanged, onSizeChanged, performClick, postInvalidate, postInvalidateDelayed, refreshDrawableState, requestFocus, requestLayout, requestRectangleOnScreen, resolveSize, scheduleDrawable, scrollBy, scrollTo, setBackground, setBackground, setBackgroundColor, setBlockDescendantFocus, setBlockUnmatchedKeyUps, setCurrentAnimation, setEnabled, setFocusable, setFocusType, setFrame, setHorizontalFadingEdgeEnabled, setHorizontalScrollBarEnabled, setId, setIsRootNamespace, setKeyListener, setLayoutParams, setMeasuredDimension, setOnClickListener, setOnFocusChangeListener, setPadding, setPreferredHeight, setPreferredWidth, setTag, setVerticalFadingEdgeEnabled, setVerticalScrollBarEnabled, setVisibility, setWillNotDraw, startAnimation, unscheduleDrawable, unscheduleDrawable, verifyDrawable, willNotDraw, windowFocusChanged

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface android.view.ViewParent

isLayoutRequested, requestLayout

Field Detail

mDisappearingChildren

protected ArrayList mDisappearingChildren

mOnHierarchyChangeListener

protected ViewGroup.OnHierarchyChangeListener mOnHierarchyChangeListener

Constructor Detail

ViewGroup

public ViewGroup(Context context)

ViewGroup

public ViewGroup(Context context,
                 AttributeSet attrs,
                 Map inflateParams)

ViewGroup

public ViewGroup(Context context,
                 AttributeSet attrs,
                 Map inflateParams,
                 int defStyle)

Method Detail

requestFocus

public void requestFocus(int direction)

Overrides:

requestFocus in class View

scrollContentBy

public boolean scrollContentBy(int x,
                               int y)

Specified by:

scrollContentBy in interface ViewParent

requestChildFocus

public void requestChildFocus(View child,
                              View focused)

Specified by:

requestChildFocus in interface ViewParent

focusableViewAvailable

public void focusableViewAvailable(View v)

Specified by:

focusableViewAvailable in interface ViewParent

focusSearch

public View focusSearch(View v,
                        int direction)

Specified by:

focusSearch in interface ViewParent

requestChildRectangleOnScreen

public boolean requestChildRectangleOnScreen(View child,
                                             Rect rectangle)

dispatchUnhandledMove

public boolean dispatchUnhandledMove(View focused,
                                     int direction)

Overrides:

dispatchUnhandledMove in class View

clearChildFocus

public void clearChildFocus(View child)

Specified by:

clearChildFocus in interface ViewParent

clearFocus

public void clearFocus()

Overrides:

clearFocus in class View

getFocusedChild

public View getFocusedChild()

hasFocus

public boolean hasFocus()

Overrides:

hasFocus in class View

findFocus

public View findFocus()

Overrides:

findFocus in class View

dispatchWindowFocusChanged

public void dispatchWindowFocusChanged(boolean hasFocus)

Overrides:

dispatchWindowFocusChanged in class View

bringChildToFront

public void bringChildToFront(View child)

Specified by:

bringChildToFront in interface ViewParent

dispatchKeyEvent

public boolean dispatchKeyEvent(KeyEvent event)

Overrides:

dispatchKeyEvent in class View

dispatchMotionEvent

public boolean dispatchMotionEvent(MotionEvent ev)

Overrides:

dispatchMotionEvent in class View

onInterceptMotionEvent

public boolean onInterceptMotionEvent(MotionEvent ev)

takeFocus

public boolean takeFocus(int direction)

Overrides:

takeFocus in class View

dispatchDraw

protected void dispatchDraw(Canvas canvas)

Overrides:

dispatchDraw in class View

setClipChildren

public void setClipChildren(boolean clipChildren)

setClipToPadding

public void setClipToPadding(boolean clipToPadding)

setSelected

public void setSelected(boolean selected)

Overrides:

setSelected in class View

getChildStaticTransformation

protected boolean getChildStaticTransformation(View child,
                                               Transformation t)

findViewTraversal

protected View findViewTraversal(int id)

Overrides:

findViewTraversal in class View

findViewWithTagTraversal

protected View findViewWithTagTraversal(Object tag)

Overrides:

findViewWithTagTraversal in class View

addView

public void addView(View child)

addView

public void addView(View child,
                    int index)

addView

public void addView(View child,
                    ViewGroup.LayoutParams params)

Specified by:

addView in interface ViewManager

addView

public void addView(View child,
                    int index,
                    ViewGroup.LayoutParams params)

updateViewLayout

public void updateViewLayout(View view,
                             ViewGroup.LayoutParams params)

Specified by:

updateViewLayout in interface ViewManager

checkLayoutParams

protected boolean checkLayoutParams(ViewGroup.LayoutParams p)

setOnHierarchyChangeListener

public void setOnHierarchyChangeListener(ViewGroup.OnHierarchyChangeListener listener)

addViewInLayout

protected boolean addViewInLayout(View child,
                                  int index,
                                  ViewGroup.LayoutParams params)

removeView

public void removeView(View view)

Specified by:

removeView in interface ViewManager

removeViewInLayout

public void removeViewInLayout(View view)

removeViewAt

public void removeViewAt(int index)

removeAllViews

public void removeAllViews()

removeAllViewsInLayout

public void removeAllViewsInLayout()

invalidateChild

public void invalidateChild(View child,
                            Rect dirty)

Specified by:

invalidateChild in interface ViewParent

getChildVisibleRect

public boolean getChildVisibleRect(View child,
                                   Rect r,
                                   Point offset)

Specified by:

getChildVisibleRect in interface ViewParent

onLayout

protected abstract void onLayout(boolean flag,
                                 int i,
                                 int j,
                                 int k,
                                 int l,
                                 int i1,
                                 int j1)

Overrides:

onLayout in class View

generateLayoutParams

public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs)

debug

protected void debug(int depth)

Overrides:

debug in class View

indexOfChild

public int indexOfChild(View child)

getChildCount

public int getChildCount()

getChildAt

public View getChildAt(int index)

measureChildren

protected void measureChildren(int widthMeasureSpec,
                               int heightMeasureSpec)

measureChild

protected void measureChild(View child,
                            int parentWidthMeasureSpec,
                            int parentHeightMeasureSpec)

measureChildWithMargins

protected void measureChildWithMargins(View child,
                                       int parentWidthMeasureSpec,
                                       int widthUsed,
                                       int parentHeightMeasureSpec,
                                       int heightUsed)

getChildMeasureSpec

public static int getChildMeasureSpec(int spec,
                                      int padding,
                                      int childDimension)

clearDisappearingChildren

public void clearDisappearingChildren()

gatherTransparentRegion

protected void gatherTransparentRegion(Region region)

Overrides:

gatherTransparentRegion in class View

requestTransparentRegion

public void requestTransparentRegion(View child)

Specified by:

requestTransparentRegion in interface ViewParent