下面列出了android.widget.FrameLayout#getChildCount ( ) 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 void onShow(DialogInterface dialog) {
if (getView() != null) {
ScrollView vMessageScrollView = (ScrollView) getView().findViewById(R.id.sdl_message_scrollview);
ListView vListView = (ListView) getView().findViewById(R.id.sdl_list);
FrameLayout vCustomViewNoScrollView = (FrameLayout) getView().findViewById(R.id.sdl_custom);
boolean customViewNoScrollViewScrollable = false;
if (vCustomViewNoScrollView.getChildCount() > 0) {
View firstChild = vCustomViewNoScrollView.getChildAt(0);
if (firstChild instanceof ViewGroup) {
customViewNoScrollViewScrollable = isScrollable((ViewGroup) firstChild);
}
}
boolean listViewScrollable = isScrollable(vListView);
boolean messageScrollable = isScrollable(vMessageScrollView);
boolean scrollable = listViewScrollable || messageScrollable || customViewNoScrollViewScrollable;
modifyButtonsBasedOnScrollableContent(scrollable);
}
}
@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
FrameLayout view = (FrameLayout) object;
for (int i = 0; i < view.getChildCount(); i++) {
View childView = view.getChildAt(i);
if (childView instanceof PhotoView) {
childView.setOnClickListener(null);
childView.setOnLongClickListener(null);
GlideApp.with(container).clear(childView);
view.removeViewAt(i);
Logger.t(TAG).d("clean photoView");
}
}
container.removeView(view);
Logger.t(TAG).d("destroyItem");
}
/**
* 获得app的contentView
*
* @param activity
* @return
*/
public static View getDokitAppContentView(Activity activity) {
FrameLayout decorView = (FrameLayout) activity.getWindow().getDecorView();
View mAppContentView = (View) decorView.getTag(R.id.dokit_app_contentview_id);
if (mAppContentView != null) {
return mAppContentView;
}
for (int index = 0; index < decorView.getChildCount(); index++) {
View child = decorView.getChildAt(index);
//LogHelper.i(TAG, "childId=====>" + getIdText(child));
//解决与布局边框工具冲突的问题
if ((child instanceof LinearLayout && TextUtils.isEmpty(getIdText(child).trim())) || child instanceof FrameLayout) {
//如果是DokitBorderView 则返回他下面的第一个子child
if (getIdText(child).trim().equals(STR_VIEW_BORDER_Id)) {
mAppContentView = ((ViewBorderFrameLayout) child).getChildAt(0);
} else {
mAppContentView = child;
}
mAppContentView.setTag(R.id.dokit_app_contentview_id);
break;
}
}
return mAppContentView;
}
@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
FrameLayout view = (FrameLayout) object;
for (int i = 0; i < view.getChildCount(); i++) {
View childView = view.getChildAt(i);
if (childView instanceof PhotoView) {
childView.setOnClickListener(null);
childView.setOnLongClickListener(null);
GlideApp.with(container).clear(childView);
view.removeViewAt(i);
Logger.t(TAG).d("clean photoView");
}
}
container.removeView(view);
Logger.t(TAG).d("destroyItem");
}
/**
* Sets a view to be displayed when the list is empty with optional LayoutParams.
* @param view Displayed when the list is empty.
* @param params Information about how view's layout in the countainer.
*/
public void setEmptyView(View view, FrameLayout.LayoutParams params){
emptyView = view;
isEmptyViewEmptyText = true;
FrameLayout frameLayout = (FrameLayout) getView();
if (frameLayout == null)
return;
//In order to avoid having more than one emptyViews added to the layout
if (frameLayout.getChildCount() > 2)
frameLayout.removeViewAt(2);
if (this.emptyText != null)
frameLayout.findViewById(android.R.id.text1).setVisibility(View.GONE);
if (params == null) {
params = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER;
}
frameLayout.addView(view, 1, params);
this.emptyViewAddedToLayout = true;
actuallySetEmptyView();
}
/**
* 截取scrollview的屏幕
* **/
public static Bitmap getBitmapByView(FrameLayout scrollView) {
int h = 0;
int w = 0;
Bitmap bitmap = null;
// 获取listView实际高度
for (int i = 0; i < scrollView.getChildCount(); i++) {
h += scrollView.getChildAt(i).getHeight();
w += scrollView.getChildAt(i).getWidth();
// scrollView.getChildAt(i).setBackgroundResource(R.drawable.bg3);
}
Log.d(LOGTAG, "实际高度:" + h);
Log.d(LOGTAG, " 高度:" + scrollView.getHeight());
// 创建对应大小的bitmap
bitmap = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
final Canvas canvas = new Canvas(bitmap);
scrollView.draw(canvas);
// 测试输出
// FileOutputStream out = null;
// try {
// out = new FileOutputStream("/sdcard/screen_test.png");
// } catch (FileNotFoundException e) {
// e.printStackTrace();
// }
// try {
// if (null != out) {
// bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
// out.flush();
// out.close();
// }
// } catch (IOException e) {
// // TODO: handle exception
// }
return bitmap;
}
private void showErrorPage() {
FrameLayout webParentView = (FrameLayout) mWebView.getParent();
initErrorPage();//初始化自定义页面
while (webParentView.getChildCount() > 1) {
webParentView.removeViewAt(0);
}
@SuppressWarnings("deprecation")
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.FILL_PARENT, FrameLayout.LayoutParams.FILL_PARENT);
webParentView.addView(mErrorView, 0, lp);
mIsErrorPage = true;
}
public static Bulletin find(@NonNull FrameLayout containerLayout) {
for (int i = 0, size = containerLayout.getChildCount(); i < size; i++) {
final View view = containerLayout.getChildAt(i);
if (view instanceof Layout) {
return ((Layout) view).bulletin;
}
}
return null;
}
public void removeBarValues() {
if (oldFrameLayout != null)
removeClickedBar();
final int barsCount = ((LinearLayout) this.getChildAt(0)).getChildCount();
for (int i = 0; i < barsCount; i++) {
FrameLayout rootFrame = (FrameLayout) ((LinearLayout) this.getChildAt(0)).getChildAt(i);
int rootChildCount = rootFrame.getChildCount();
for (int j = 0; j < rootChildCount; j++) {
View childView = rootFrame.getChildAt(j);
if (childView instanceof LinearLayout) {
//bar
LinearLayout barContainerLinear = ((LinearLayout) childView);
int barContainerCount = barContainerLinear.getChildCount();
for (int k = 0; k < barContainerCount; k++) {
View view = barContainerLinear.getChildAt(k);
if (view instanceof Bar) {
BarAnimation anim = new BarAnimation(((Bar) view), (int) (mDataList.get(i).getBarValue() * 100), 0);
anim.setDuration(250);
((Bar) view).startAnimation(anim);
}
}
}
}
}
isBarsEmpty = true;
}
public void resetBarValues() {
if (oldFrameLayout != null)
removeClickedBar();
final int barsCount = ((LinearLayout) this.getChildAt(0)).getChildCount();
for (int i = 0; i < barsCount; i++) {
FrameLayout rootFrame = (FrameLayout) ((LinearLayout) this.getChildAt(0)).getChildAt(i);
int rootChildCount = rootFrame.getChildCount();
for (int j = 0; j < rootChildCount; j++) {
View childView = rootFrame.getChildAt(j);
if (childView instanceof LinearLayout) {
//bar
LinearLayout barContainerLinear = ((LinearLayout) childView);
int barContainerCount = barContainerLinear.getChildCount();
for (int k = 0; k < barContainerCount; k++) {
View view = barContainerLinear.getChildAt(k);
if (view instanceof Bar) {
BarAnimation anim = new BarAnimation(((Bar) view), 0, (int) (mDataList.get(i).getBarValue() * 100));
anim.setDuration(250);
((Bar) view).startAnimation(anim);
}
}
}
}
}
isBarsEmpty = false;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
VideoUserStatusHolder myHolder = ((VideoUserStatusHolder) holder);
final VideoStatusData user = mUsers.get(position);
Log.d("VideoViewAdapter", "onBindViewHolder " + position + " " + user + " " + myHolder + " " + myHolder.itemView);
log.debug("onBindViewHolder " + position + " " + user + " " + myHolder + " " + myHolder.itemView);
FrameLayout holderView = (FrameLayout) myHolder.itemView;
if (holderView.getChildCount() == 0) {
SurfaceView target = user.mView;
stripSurfaceView(target);
holderView.addView(target, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
}
holderView.setOnTouchListener(new OnDoubleTapListener(mContext) {
@Override
public void onDoubleTap(View view, MotionEvent e) {
if (mListener != null) {
mListener.onItemDoubleClick(view, user);
}
}
@Override
public void onSingleTapUp() {
}
});
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
VideoUserStatusHolder myHolder = ((VideoUserStatusHolder) holder);
final VideoStatusData user = mUsers.get(position);
log.debug("onBindViewHolder " + position + " " + user + " " + myHolder + " " + myHolder.itemView);
FrameLayout holderView = (FrameLayout) myHolder.itemView;
holderView.setOnTouchListener(new OnDoubleTapListener(mContext) {
@Override
public void onDoubleTap(View view, MotionEvent e) {
if (mListener != null) {
mListener.onItemDoubleClick(view, user);
}
}
@Override
public void onSingleTapUp() {
}
});
if (holderView.getChildCount() == 0) {
SurfaceView target = user.mView;
stripSurfaceView(target);
holderView.addView(target, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
}
}
@Override
public boolean onDrag(View v, DragEvent event) {
switch(event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
default:
// do nothing
break;
case DragEvent.ACTION_DRAG_ENTERED:
FrameLayout container = (FrameLayout) v;
if(container.getChildCount() == 0
|| startDragIndex == desktopIcons.indexOfChild(container)) {
v.setBackgroundColor(U.getAccentColor(HomeActivityDelegate.this));
v.setAlpha(0.5f);
}
break;
case DragEvent.ACTION_DRAG_ENDED:
View view = (View) event.getLocalState();
view.setVisibility(View.VISIBLE);
// fall through
case DragEvent.ACTION_DRAG_EXITED:
v.setBackground(null);
v.setAlpha(1);
break;
case DragEvent.ACTION_DROP:
FrameLayout container2 = (FrameLayout) v;
if(container2.getChildCount() == 0) {
// Dropped, reassign View to ViewGroup
View view2 = (View) event.getLocalState();
ViewGroup owner = (ViewGroup) view2.getParent();
owner.removeView(view2);
container2.addView(view2);
endDragIndex = desktopIcons.indexOfChild(container2);
reassignDroppedIcon();
}
break;
}
return true;
}
@Override
protected void onStart() {
super.onStart();
FrameLayout frameLayout = findViewById(R.id.fragment_container);
if(frameLayout != null && frameLayout.getChildCount() > 0) {
mSnackBarConnectionLost = Snackbar.make(frameLayout.getChildAt(0),
getString(R.string.connection_with_camera_lost), Snackbar.LENGTH_INDEFINITE);
} else {
mNotConnectedMessage = false;
}
}
public void disableBar(int index) {
final int barsCount = ((LinearLayout) this.getChildAt(0)).getChildCount();
for (int i = 0; i < barsCount; i++) {
FrameLayout rootFrame = (FrameLayout) ((LinearLayout) this.getChildAt(0)).getChildAt(i);
int rootChildCount = rootFrame.getChildCount();
for (int j = 0; j < rootChildCount; j++) {
if ((int) rootFrame.getTag() != index)
continue;
rootFrame.setEnabled(false);
rootFrame.setClickable(false);
View childView = rootFrame.getChildAt(j);
if (childView instanceof LinearLayout) {
//bar
LinearLayout barContainerLinear = ((LinearLayout) childView);
int barContainerCount = barContainerLinear.getChildCount();
for (int k = 0; k < barContainerCount; k++) {
View view = barContainerLinear.getChildAt(k);
if (view instanceof Bar) {
Bar bar = (Bar) view;
LayerDrawable layerDrawable = (LayerDrawable) bar.getProgressDrawable();
layerDrawable.mutate();
ScaleDrawable scaleDrawable = (ScaleDrawable) layerDrawable.getDrawable(1);
GradientDrawable progressLayer = (GradientDrawable) scaleDrawable.getDrawable();
if (progressLayer != null) {
if (mProgressDisableColor > 0)
progressLayer.setColor(ContextCompat.getColor(mContext, mProgressDisableColor));
else
progressLayer.setColor(ContextCompat.getColor(mContext, android.R.color.darker_gray));
}
} else {
TextView titleTxtView = (TextView) view;
if (mProgressDisableColor > 0)
titleTxtView.setTextColor(ContextCompat.getColor(mContext, mProgressDisableColor));
else
titleTxtView.setTextColor(ContextCompat.getColor(mContext, android.R.color.darker_gray));
}
}
}
}
}
}
public void enableBar(int index) {
final int barsCount = ((LinearLayout) this.getChildAt(0)).getChildCount();
for (int i = 0; i < barsCount; i++) {
FrameLayout rootFrame = (FrameLayout) ((LinearLayout) this.getChildAt(0)).getChildAt(i);
int rootChildCount = rootFrame.getChildCount();
for (int j = 0; j < rootChildCount; j++) {
if ((int) rootFrame.getTag() != index)
continue;
rootFrame.setEnabled(true);
rootFrame.setClickable(true);
View childView = rootFrame.getChildAt(j);
if (childView instanceof LinearLayout) {
//bar
LinearLayout barContainerLinear = ((LinearLayout) childView);
int barContainerCount = barContainerLinear.getChildCount();
for (int k = 0; k < barContainerCount; k++) {
View view = barContainerLinear.getChildAt(k);
if (view instanceof Bar) {
Bar bar = (Bar) view;
LayerDrawable layerDrawable = (LayerDrawable) bar.getProgressDrawable();
layerDrawable.mutate();
ScaleDrawable scaleDrawable = (ScaleDrawable) layerDrawable.getDrawable(1);
GradientDrawable progressLayer = (GradientDrawable) scaleDrawable.getDrawable();
if (progressLayer != null) {
if (mProgressColor > 0)
progressLayer.setColor(ContextCompat.getColor(mContext, mProgressColor));
else
progressLayer.setColor(ContextCompat.getColor(mContext, android.R.color.darker_gray));
}
} else {
TextView titleTxtView = (TextView) view;
if (mProgressDisableColor > 0)
titleTxtView.setTextColor(ContextCompat.getColor(mContext, mBarTitleColor));
else
titleTxtView.setTextColor(ContextCompat.getColor(mContext, android.R.color.darker_gray));
}
}
}
}
}
}
public void selectBar(int index) {
final int barsCount = ((LinearLayout) this.getChildAt(0)).getChildCount();
for (int i = 0; i < barsCount; i++) {
FrameLayout rootFrame = (FrameLayout) ((LinearLayout) this.getChildAt(0)).getChildAt(i);
int rootChildCount = rootFrame.getChildCount();
for (int j = 0; j < rootChildCount; j++) {
if ((int) rootFrame.getTag() != index)
continue;
if (oldFrameLayout != null)
clickBarOff(oldFrameLayout);
clickBarOn(rootFrame);
oldFrameLayout = rootFrame;
}
}
}
public void deselectBar(int index) {
final int barsCount = ((LinearLayout) this.getChildAt(0)).getChildCount();
for (int i = 0; i < barsCount; i++) {
FrameLayout rootFrame = (FrameLayout) ((LinearLayout) this.getChildAt(0)).getChildAt(i);
int rootChildCount = rootFrame.getChildCount();
for (int j = 0; j < rootChildCount; j++) {
if ((int) rootFrame.getTag() != index)
continue;
clickBarOff(rootFrame);
}
}
}
public Window(WindowWrapper windowWrapper) {
super(windowWrapper.getContext());
mContext = windowWrapper.getContext();
mWindowWrapper = windowWrapper;
this.id = mWindowWrapper.WindowId;
this.originalParams = windowWrapper.onRequestLayoutParams();
this.flags = windowWrapper.onRequestWindowFlags();
this.touchInfo = new TouchInfo();
touchInfo.ratio = (float) originalParams.width / originalParams.height;
this.data = new Bundle();
// create the window contents
FrameLayout content = new FrameLayout(mContext);
content.setId(android.R.id.content);
addView(content);
mLongPressRunnable = new Runnable() {
@Override
public void run() {
if (mWindowWrapper.handleLongClick()){
touchInfo.isLongPress = true;
mWindowWrapper.onLongPressed();
}
}
};
content.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// pass all touch events to the implementation
boolean consumed = false;
final StandOutWindowManager windowManager = mWindowWrapper.getWindowManager();
dispatchLongPress(event);
// handle move and bring to front
consumed = windowManager.onTouchHandleMove(Window.this, v, event)
|| consumed;
// alert implementation
consumed = mWindowWrapper.onTouchBody(Window.this, v, event)
|| consumed;
return consumed;
}
});
// attach the view corresponding to the id from the
// implementation
windowWrapper.onCreateAndAttachView(content);
// make sure the implementation attached the view
if (content.getChildCount() == 0) {
Log.e(TAG, "You must attach your view to the given frame in onCreateAndAttachView()");
}
// attach the existing tag from the frame to the window
setTag(content.getTag());
windowWrapper.isCreated = true;
}
private void clickBarOff(FrameLayout frameLayout) {
pins.get((int) frameLayout.getTag()).setVisibility(View.INVISIBLE);
isOldBarClicked = false;
int childCount = frameLayout.getChildCount();
for (int i = 0; i < childCount; i++) {
View childView = frameLayout.getChildAt(i);
if (childView instanceof LinearLayout) {
LinearLayout linearLayout = (LinearLayout) childView;
Bar bar = (Bar) linearLayout.getChildAt(0);
TextView titleTxtView = (TextView) linearLayout.getChildAt(1);
LayerDrawable layerDrawable = (LayerDrawable) bar.getProgressDrawable();
layerDrawable.mutate();
ScaleDrawable scaleDrawable = (ScaleDrawable) layerDrawable.getDrawable(1);
GradientDrawable progressLayer = (GradientDrawable) scaleDrawable.getDrawable();
if (progressLayer != null) {
progressLayer.setColor(ContextCompat.getColor(mContext, mProgressColor));
}
titleTxtView.setTextColor(ContextCompat.getColor(mContext, mBarTitleColor));
}
}
}