下面列出了android.view.ViewGroup#getTop ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public boolean onDoubleTap(MotionEvent e) {
if (mDoubleClickListener != null) {
View target;
ViewGroup bottom = getBottomView();
ViewGroup surface = getSurfaceView();
if (e.getX() > bottom.getLeft() && e.getX() < bottom.getRight()
&& e.getY() > bottom.getTop()
&& e.getY() < bottom.getBottom()) {
target = bottom;
} else {
target = surface;
}
mDoubleClickListener.onDoubleClick(SwipeLayout.this,
target == surface);
}
return true;
}
/**
* close surface
*
* @param smooth smoothly or not.
* @param notify if notify all the listeners.
*/
public void close(boolean smooth, boolean notify) {
ViewGroup surface = getSurfaceView();
int dx, dy;
if (smooth)
mDragHelper.smoothSlideViewTo(getSurfaceView(), getPaddingLeft(),
getPaddingTop());
else {
Rect rect = computeSurfaceLayoutArea(false);
dx = rect.left - surface.getLeft();
dy = rect.top - surface.getTop();
surface.layout(rect.left, rect.top, rect.right, rect.bottom);
if (notify) {
dispatchRevealEvent(rect.left, rect.top, rect.right,
rect.bottom);
dispatchSwipeEvent(rect.left, rect.top, dx, dy);
} else {
safeBottomView();
}
}
invalidate();
}
private void setIntentByViewGroup(RemoteViews remoteViews, ViewGroup viewGroup, List<RectInfo> list) {
int count = viewGroup.getChildCount();
for (int i = 0; i < count; i++) {
View v = viewGroup.getChildAt(i);
if (v instanceof ViewGroup) {
// linearlayout
setIntentByViewGroup(remoteViews, (ViewGroup) v, list);
} else if (v instanceof TextView) {
// textview
Rect rect = new Rect();
v.getHitRect(rect);
// height修正
rect.top += viewGroup.getTop();
rect.bottom += viewGroup.getTop();
PendingIntent pendingIntent = findIntent(rect, list);
if (pendingIntent != null) {
remoteViews.setOnClickPendingIntent(v.getId(), pendingIntent);
}
}
}
}
/**
* Aligns the shadow with {@param view}
* @param viewParent immediate parent of {@param view}. It must be a sibling of this view.
*/
public void alignWithIconView(BubbleTextView view, ViewGroup viewParent) {
float leftShift = view.getLeft() + viewParent.getLeft() - getLeft();
float topShift = view.getTop() + viewParent.getTop() - getTop();
int iconWidth = view.getRight() - view.getLeft();
int iconHSpace = iconWidth - view.getCompoundPaddingRight() - view.getCompoundPaddingLeft();
float drawableWidth = view.getIcon().getBounds().width();
setTranslationX(leftShift
+ viewParent.getTranslationX()
+ view.getCompoundPaddingLeft() * view.getScaleX()
+ (iconHSpace - drawableWidth) * view.getScaleX() / 2 /* drawable gap */
+ iconWidth * (1 - view.getScaleX()) / 2 /* gap due to scale */
- mShadowPadding /* extra shadow size */
);
setTranslationY(topShift
+ viewParent.getTranslationY()
+ view.getPaddingTop() * view.getScaleY() /* drawable gap */
+ view.getHeight() * (1 - view.getScaleY()) / 2 /* gap due to scale */
- mShadowPadding /* extra shadow size */
);
}
public void close(boolean smooth, boolean notify) {
ViewGroup surface = getSurfaceView();
int dx, dy;
if (smooth)
mDragHelper.smoothSlideViewTo(getSurfaceView(), getPaddingLeft(),
getPaddingTop());
else {
Rect rect = computeSurfaceLayoutArea(false);
dx = rect.left - surface.getLeft();
dy = rect.top - surface.getTop();
surface.layout(rect.left, rect.top, rect.right, rect.bottom);
if (notify) {
dispatchSwipeEvent(rect.left, rect.top, dx, dy);
} else {
safeBottomView();
}
}
invalidate();
}
/**
* 获取触点所在条目的位置
* 获取选中条目的图片
* 事件的拦截机制
*
* @param ev
* @return
*/
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
//识别动作
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
//获取触点的坐标
int x = (int) ev.getX();
int y = (int) ev.getY();
//这样就可以计算我按到哪个条目上了
mStartPosition = mEndPosition = pointToPosition(x, y);
//判断触点是否在logo的区域
ViewGroup itemView = (ViewGroup) getChildAt(mStartPosition - getFirstVisiblePosition());
//记录手指在条目中的相对Y坐标
dragPoint = y - itemView.getTop();
//ListView在屏幕中的Y坐标
dragOffset = (int) (ev.getRawY() - y);
//拖动的图标
View dragger = itemView.findViewById(R.id.guide_shape_im); //有修改
//判断触点是否在logo区域
if (dragger != null && x < dragger.getRight() + 10) {
//定义ListView的滚动条目
//上
upScroll = getHeight() / 3;
//下
downScroll = getHeight() * 2 / 3;
//获取选中的图片/截图
itemView.setDrawingCacheEnabled(true);
//获取截图
Bitmap bitMap = itemView.getDrawingCache();
//图片滚动
startDrag(bitMap, y);
}
break;
}
//还会传递事件到子View
return false;
}
private void drawDivider(int expPosition, Canvas canvas) {
final Drawable divider = getDivider();
final int dividerHeight = getDividerHeight();
if (divider != null && dividerHeight != 0) {
final ViewGroup expItem = (ViewGroup) getChildAt(expPosition
- getFirstVisiblePosition());
if (expItem != null) {
final int left = getPaddingLeft();
final int right = getWidth() - getPaddingRight();
final int top;
final int bottom;
final int childHeight = expItem.getChildAt(0).getHeight();
if (expPosition > mSrcPos) {
top = expItem.getTop() + childHeight;
bottom = top + dividerHeight;
} else {
bottom = expItem.getBottom() - childHeight;
top = bottom - dividerHeight;
}
// Have to clip to support ColorDrawable on <= Gingerbread
canvas.save();
canvas.clipRect(left, top, right, bottom);
divider.setBounds(left, top, right, bottom);
divider.draw(canvas);
canvas.restore();
}
}
}
/** Scroll the layout so that the focused child is on screen. */
private void requestChildFocus() {
ViewGroup parent = (ViewGroup) mLayout.getParent();
if (mLayout.getParent() == null) return;
// Scroll the parent to make the focused child visible.
if (mFocusedChild != null) parent.requestChildFocus(mLayout, mFocusedChild);
// {@link View#requestChildFocus} fails to account for children changing their height, so
// the scroll value may be past the actual maximum.
int viewportHeight = parent.getBottom() - parent.getTop();
int scrollMax = Math.max(0, mLayout.getMeasuredHeight() - viewportHeight);
if (parent.getScrollY() > scrollMax) parent.setScrollY(scrollMax);
}
/**
* Aligns the shadow with {@param view}
* @param viewParent immediate parent of {@param view}. It must be a sibling of this view.
*/
public void alignWithIconView(BubbleTextView view, ViewGroup viewParent, View clipAgainstView) {
float leftShift = view.getLeft() + viewParent.getLeft() - getLeft();
float topShift = view.getTop() + viewParent.getTop() - getTop();
int iconWidth = view.getRight() - view.getLeft();
int iconHeight = view.getBottom() - view.getTop();
int iconHSpace = iconWidth - view.getCompoundPaddingRight() - view.getCompoundPaddingLeft();
float drawableWidth = view.getIcon().getBounds().width();
if (clipAgainstView != null) {
// Set the bounds to clip against
int[] coords = new int[] {0, 0};
Utilities.getDescendantCoordRelativeToAncestor(clipAgainstView, (View) getParent(),
coords, false);
int clipLeft = (int) Math.max(0, coords[0] - leftShift - mShadowPadding);
int clipTop = (int) Math.max(0, coords[1] - topShift - mShadowPadding) ;
setClipBounds(new Rect(clipLeft, clipTop, clipLeft + iconWidth, clipTop + iconHeight));
} else {
// Reset the clip bounds
setClipBounds(null);
}
setTranslationX(leftShift
+ viewParent.getTranslationX()
+ view.getCompoundPaddingLeft() * view.getScaleX()
+ (iconHSpace - drawableWidth) * view.getScaleX() / 2 /* drawable gap */
+ iconWidth * (1 - view.getScaleX()) / 2 /* gap due to scale */
- mShadowPadding /* extra shadow size */
);
setTranslationY(topShift
+ viewParent.getTranslationY()
+ view.getPaddingTop() * view.getScaleY() /* drawable gap */
+ view.getHeight() * (1 - view.getScaleY()) / 2 /* gap due to scale */
- mShadowPadding /* extra shadow size */
);
}
private void drawDivider(int expPosition, Canvas canvas) {
final Drawable divider = getDivider();
final int dividerHeight = getDividerHeight();
// Log.d("mobeta", "div="+divider+" divH="+dividerHeight);
if (divider != null && dividerHeight != 0) {
final ViewGroup expItem = (ViewGroup) getChildAt(expPosition
- getFirstVisiblePosition());
if (expItem != null) {
final int l = getPaddingLeft();
final int r = getWidth() - getPaddingRight();
final int t;
final int b;
final int childHeight = expItem.getChildAt(0).getHeight();
if (expPosition > mSrcPos) {
t = expItem.getTop() + childHeight;
b = t + dividerHeight;
} else {
b = expItem.getBottom() - childHeight;
t = b - dividerHeight;
}
// Log.d("mobeta", "l="+l+" t="+t+" r="+r+" b="+b);
// Have to clip to support ColorDrawable on <= Gingerbread
canvas.save();
canvas.clipRect(l, t, r, b);
divider.setBounds(l, t, r, b);
divider.draw(canvas);
canvas.restore();
}
}
}
private void drawDivider(int expPosition, Canvas canvas) {
final Drawable divider = getDivider();
final int dividerHeight = getDividerHeight();
// Log.d("mobeta", "div="+divider+" divH="+dividerHeight);
if (divider != null && dividerHeight != 0) {
final ViewGroup expItem = (ViewGroup) getChildAt(expPosition
- getFirstVisiblePosition());
if (expItem != null) {
final int l = getPaddingLeft();
final int r = getWidth() - getPaddingRight();
final int t;
final int b;
final int childHeight = expItem.getChildAt(0).getHeight();
if (expPosition > mSrcPos) {
t = expItem.getTop() + childHeight;
b = t + dividerHeight;
} else {
b = expItem.getBottom() - childHeight;
t = b - dividerHeight;
}
// Log.d("mobeta", "l="+l+" t="+t+" r="+r+" b="+b);
// Have to clip to support ColorDrawable on <= Gingerbread
canvas.save();
canvas.clipRect(l, t, r, b);
divider.setBounds(l, t, r, b);
divider.draw(canvas);
canvas.restore();
}
}
}
private void drawDivider(int expPosition, Canvas canvas) {
final Drawable divider = getDivider();
final int dividerHeight = getDividerHeight();
// Log.d("mobeta", "div="+divider+" divH="+dividerHeight);
if (divider != null && dividerHeight != 0) {
final ViewGroup expItem = (ViewGroup) getChildAt(expPosition
- getFirstVisiblePosition());
if (expItem != null) {
final int l = getPaddingLeft();
final int r = getWidth() - getPaddingRight();
final int t;
final int b;
final int childHeight = expItem.getChildAt(0).getHeight();
if (expPosition > mSrcPos) {
t = expItem.getTop() + childHeight;
b = t + dividerHeight;
} else {
b = expItem.getBottom() - childHeight;
t = b - dividerHeight;
}
// Log.d("mobeta", "l="+l+" t="+t+" r="+r+" b="+b);
// Have to clip to support ColorDrawable on <= Gingerbread
canvas.save();
canvas.clipRect(l, t, r, b);
divider.setBounds(l, t, r, b);
divider.draw(canvas);
canvas.restore();
}
}
}
@Override protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
final ViewGroup row = (ViewGroup) getChildAt(1);
int top = row.getTop();
int bottom = getBottom();
// Left side border.
final int left = row.getChildAt(0).getLeft() + getLeft();
canvas.drawLine(left + FLOAT_FUDGE, top, left + FLOAT_FUDGE, bottom, dividerPaint);
// Each cell's right-side border.
for (int c = 0; c < 7; c++) {
float x = left + row.getChildAt(c).getRight() - FLOAT_FUDGE;
canvas.drawLine(x, top, x, bottom, dividerPaint);
}
}
@Override protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
final ViewGroup row = (ViewGroup) getChildAt(1);
int top = row.getTop();
int bottom = getBottom();
// Left side border.
final int left = row.getChildAt(0).getLeft() + getLeft();
canvas.drawLine(left + FLOAT_FUDGE, top, left + FLOAT_FUDGE, bottom, dividerPaint);
// Each cell's right-side border.
for (int c = 0; c < 7; c++) {
float x = left + row.getChildAt(c).getRight() - FLOAT_FUDGE;
canvas.drawLine(x, top, x, bottom, dividerPaint);
}
}
/** Scroll the layout so that the focused child is on screen. */
private void requestChildFocus() {
ViewGroup parent = (ViewGroup) mLayout.getParent();
if (mLayout.getParent() == null) return;
// Scroll the parent to make the focused child visible.
if (mFocusedChild != null) parent.requestChildFocus(mLayout, mFocusedChild);
// {@link View#requestChildFocus} fails to account for children changing their height, so
// the scroll value may be past the actual maximum.
int viewportHeight = parent.getBottom() - parent.getTop();
int scrollMax = Math.max(0, mLayout.getMeasuredHeight() - viewportHeight);
if (parent.getScrollY() > scrollMax) parent.setScrollY(scrollMax);
}
/** Scroll the layout so that the focused child is on screen. */
private void requestChildFocus() {
ViewGroup parent = (ViewGroup) mLayout.getParent();
if (mLayout.getParent() == null) return;
// Scroll the parent to make the focused child visible.
if (mFocusedChild != null) parent.requestChildFocus(mLayout, mFocusedChild);
// {@link View#requestChildFocus} fails to account for children changing their height, so
// the scroll value may be past the actual maximum.
int viewportHeight = parent.getBottom() - parent.getTop();
int scrollMax = Math.max(0, mLayout.getMeasuredHeight() - viewportHeight);
if (parent.getScrollY() > scrollMax) parent.setScrollY(scrollMax);
}
private void drawDivider(int expPosition, Canvas canvas) {
final Drawable divider = getDivider();
final int dividerHeight = getDividerHeight();
// Log.d("mobeta", "div="+divider+" divH="+dividerHeight);
if (divider != null && dividerHeight != 0) {
final ViewGroup expItem = (ViewGroup) getChildAt(expPosition
- getFirstVisiblePosition());
if (expItem != null) {
final int l = getPaddingLeft();
final int r = getWidth() - getPaddingRight();
final int t;
final int b;
final int childHeight = expItem.getChildAt(0).getHeight();
if (expPosition > mSrcPos) {
t = expItem.getTop() + childHeight;
b = t + dividerHeight;
} else {
b = expItem.getBottom() - childHeight;
t = b - dividerHeight;
}
// Log.d("mobeta", "l="+l+" t="+t+" r="+r+" b="+b);
// Have to clip to support ColorDrawable on <= Gingerbread
canvas.save();
canvas.clipRect(l, t, r, b);
divider.setBounds(l, t, r, b);
divider.draw(canvas);
canvas.restore();
}
}
}
private void drawDivider(int expPosition, Canvas canvas) {
final Drawable divider = getDivider();
final int dividerHeight = getDividerHeight();
// Log.d("mobeta", "div="+divider+" divH="+dividerHeight);
if (divider != null && dividerHeight != 0) {
final ViewGroup expItem = (ViewGroup) getChildAt(expPosition
- getFirstVisiblePosition());
if (expItem != null) {
final int l = getPaddingLeft();
final int r = getWidth() - getPaddingRight();
final int t;
final int b;
final int childHeight = expItem.getChildAt(0).getHeight();
if (expPosition > mSrcPos) {
t = expItem.getTop() + childHeight;
b = t + dividerHeight;
} else {
b = expItem.getBottom() - childHeight;
t = b - dividerHeight;
}
// Log.d("mobeta", "l="+l+" t="+t+" r="+r+" b="+b);
// Have to clip to support ColorDrawable on <= Gingerbread
canvas.save();
canvas.clipRect(l, t, r, b);
divider.setBounds(l, t, r, b);
divider.draw(canvas);
canvas.restore();
}
}
}
@Override
public void onScroll(AbsListView listView, int firstVisible, int visibleItemCount, int totalItemCount) {
if (!pickerInitialized || !selectorAnimationsEnabled) return;
int selectorPosY = cellHeight * cellsBeforeSelector;
int applyingRangeY = cellHeight;
for (int i = 0; i < listView.getChildCount(); i++) {
// Exclude elements that does not need to edit
if (!(listView.getChildAt(i) instanceof FrameLayout))
continue;
ViewGroup itemRoot = (ViewGroup) listView.getChildAt(i);
float deviation = 2f;
if (itemRoot.getTop() > selectorPosY + applyingRangeY * deviation || itemRoot.getTop() < selectorPosY - applyingRangeY * deviation)
continue;
View cellContent = itemRoot.getChildAt(0);
// Edit elements regarding to their position from selector
float dy = Math.abs(itemRoot.getTop() - selectorPosY);
if (!selectorAnimationCenterPivot) {
cellContent.setPivotX(0);
cellContent.setPivotY(cellContent.getHeight() / 2);
}
// Scale and "3d effect" for big scale factors on API>=LOLLIPOP
if (dy <= applyingRangeY) {
float k1 = 1 - (dy / applyingRangeY);
float scale = 1 + scaleFactorDelta * k1;
cellContent.setScaleX(scale);
cellContent.setScaleY(scale);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
itemRoot.setZ((dy <= applyingRangeY / 2) ? 2 : 1);
} else {
cellContent.setScaleX(1f);
cellContent.setScaleY(1f);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP)
itemRoot.setZ(0);
}
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (mDragListener != null || mDropListener != null) {
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
int x = (int) ev.getX();
int y = (int) ev.getY();
int itemnum = pointToPosition(x, y);
if (itemnum == AdapterView.INVALID_POSITION) {
break;
}
ViewGroup item = (ViewGroup) getChildAt(itemnum - getFirstVisiblePosition());
mDragPoint = y - item.getTop();
mCoordOffset = ((int) ev.getRawY()) - y;
View dragger = item.findViewById(R.id.grabber);
Rect r = mTempRect;
dragger.getDrawingRect(r);
if (shouldStartDragging(x, r.width())) {
// Fix x position while dragging
int[] itemPos = new int[2];
item.getLocationOnScreen(itemPos);
item.setDrawingCacheEnabled(true);
// Create a copy of the drawing cache so that it does
// not get recycled
// by the framework when the list tries to clean up
// memory
Bitmap bitmap = Bitmap.createBitmap(item.getDrawingCache());
startDragging(bitmap, itemPos[0], y);
mDragPos = itemnum;
mFirstDragPos = mDragPos;
mHeight = getHeight();
int touchSlop = mTouchSlop;
mUpperBound = Math.min(y - touchSlop, mHeight / 3);
mLowerBound = Math.max(y + touchSlop, mHeight * 2 / 3);
return false;
}
stopDragging();
break;
}
}
return super.onInterceptTouchEvent(ev);
}