@Override
public void onDrag(float dx, float dy) {
DraweeView<GenericDraweeHierarchy> draweeView = getDraweeView();
if (draweeView != null && !mScaleDragDetector.isScaling()) {
mMatrix.postTranslate(dx, dy);
checkMatrixAndInvalidate();
ViewParent parent = draweeView.getParent();
if (parent == null) {
return;
}
if (mAllowParentInterceptOnEdge
&& !mScaleDragDetector.isScaling()
&& !mBlockParentIntercept) {
if (mScrollEdge == EDGE_BOTH
|| (mScrollEdge == EDGE_LEFT && dx >= 1f)
|| (mScrollEdge == EDGE_RIGHT && dx <= -1f)) {
parent.requestDisallowInterceptTouchEvent(false);
}
} else {
parent.requestDisallowInterceptTouchEvent(true);
}
}
}
@Override
public void onDrag(float dx, float dy) {
if (mScaleDragDetector.isScaling()) {
return; // Do not drag if we are already scaling
}
if (DEBUG) {
LogManager.getLogger().d(LOG_TAG, String.format("onDrag: dx: %.2f. dy: %.2f", dx, dy));
}
ImageView imageView = getImageView();
mSuppMatrix.postTranslate(dx, dy);
checkAndDisplayMatrix();
/**
* Here we decide whether to let the ImageView's parent to start taking over the touch event.
*
* <p>First we check whether this function is enabled. We never want the parent to take over if
* we're scaling. We then check the edge we're on, and the direction of the scroll (i.e. if
* we're pulling against the edge, aka 'overscrolling', let the parent take over).
*/
ViewParent parent = imageView.getParent();
if (mAllowParentInterceptOnEdge && !mScaleDragDetector.isScaling() && !mBlockParentIntercept) {
if (mScrollEdge == EDGE_BOTH
|| (mScrollEdge == EDGE_LEFT && dx >= 1f)
|| (mScrollEdge == EDGE_RIGHT && dx <= -1f)) {
if (null != parent) parent.requestDisallowInterceptTouchEvent(false);
}
} else {
if (null != parent) {
parent.requestDisallowInterceptTouchEvent(true);
}
}
}
/** Private helper to get the parent TabHost in the view hiearchy. */
private static TabHost findTabHostParent(View v) {
ViewParent p = v.getParent();
while (p != null && !(p instanceof TabHost)) {
p = p.getParent();
}
return (TabHost) p;
}
/**
* Sends the specified text to the {@link AccessibilityManager} to be spoken.
*
* @param view The source view.
* @param text The text to speak.
*/
public void announceForAccessibility(final View view, final CharSequence text) {
if (!mAccessibilityManager.isEnabled()) {
Log.e(TAG, "Attempted to speak when accessibility was disabled!");
return;
}
// The following is a hack to avoid using the heavy-weight TextToSpeech
// class. Instead, we're just forcing a fake AccessibilityEvent into
// the screen reader to make it speak.
final AccessibilityEvent event = AccessibilityEvent.obtain();
event.setPackageName(PACKAGE);
event.setClassName(CLASS);
event.setEventTime(SystemClock.uptimeMillis());
event.setEnabled(true);
event.getText().add(text);
// Platforms starting at SDK version 16 (Build.VERSION_CODES.JELLY_BEAN) should use
// announce events.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
event.setEventType(AccessibilityEventCompat.TYPE_ANNOUNCEMENT);
} else {
event.setEventType(AccessibilityEvent.TYPE_VIEW_FOCUSED);
}
final ViewParent viewParent = view.getParent();
if ((viewParent == null) || !(viewParent instanceof ViewGroup)) {
Log.e(TAG, "Failed to obtain ViewParent in announceForAccessibility");
return;
}
viewParent.requestSendAccessibilityEvent(view, event);
}
/**
* calls either #connect or #disconnect on the binder, depending on the view state. Call this
* after a change to the view state.
*/
private void evalBinder() {
if (liftedRxLifecycleBinder.isClosed()) {
// abort; already done
return;
}
boolean connect;
if (View.VISIBLE == getWindowVisibility()) {
if (View.VISIBLE == getVisibility()) {
boolean visible = true;
for (ViewParent p = getParent(); visible && p instanceof View; p = p.getParent()) {
visible &= View.VISIBLE == ((View) p).getVisibility();
}
connect = visible;
} else {
connect = false;
}
} else {
connect = false;
}
if (connect) {
liftedRxLifecycleBinder.connect(this);
} else {
liftedRxLifecycleBinder.disconnect();
}
}
public boolean onTouchEvent(MotionEvent ev) {
int action = ev.getActionMasked();
ViewParent parent = getParent(); // LinearLayout
gestureDetector.onTouchEvent(ev);
switch (action) {
case MotionEvent.ACTION_DOWN:
this.mDragHelper.processTouchEvent(ev);
parent.requestDisallowInterceptTouchEvent(true);
sX = ev.getRawX();
sY = ev.getRawY();
return true;
case MotionEvent.ACTION_MOVE:
float distanceX = ev.getRawX() - sX;
float distanceY = ev.getRawY() - sY;
sX = ev.getRawX();
sY = ev.getRawY();
float angle = Math.abs(distanceY / distanceX);
angle = (float) Math.toDegrees(Math.atan(angle));
if (angle > 30) {
parent.requestDisallowInterceptTouchEvent(false);
return false;
}
parent.requestDisallowInterceptTouchEvent(true);
mDragHelper.processTouchEvent(ev);
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
default:
parent.requestDisallowInterceptTouchEvent(true);
mDragHelper.processTouchEvent(ev);
}
return true; // 必须返回true,表示已经正确处理touch事件,才能继续后续的拖动*/
}
@SuppressLint("ClickableViewAccessibility")
@Override
public boolean onTouch(View v, MotionEvent ev) {
boolean handled = false;
if (mZoomEnabled && hasDrawable((ImageView) v)) {
ViewParent parent = v.getParent();
switch (ev.getAction()) {
case ACTION_DOWN:
// First, disable the Parent from intercepting the touch
// event
if (null != parent) {
parent.requestDisallowInterceptTouchEvent(true);
} else {
LogManager.getLogger().i(LOG_TAG, "onTouch getParent() returned null");
}
// If we're flinging, and the user presses down, cancel
// fling
cancelFling();
break;
case ACTION_CANCEL:
case ACTION_UP:
// If the user has zoomed less than min scale, zoom back
// to min scale
if (getScale() < mMinScale) {
RectF rect = getDisplayRect();
if (null != rect) {
v.post(
new AnimatedZoomRunnable(getScale(), mMinScale, rect.centerX(), rect.centerY()));
handled = true;
}
}
break;
}
// Try the Scale/Drag detector
if (null != mScaleDragDetector) {
boolean wasScaling = mScaleDragDetector.isScaling();
boolean wasDragging = mScaleDragDetector.isDragging();
handled = mScaleDragDetector.onTouchEvent(ev);
boolean didntScale = !wasScaling && !mScaleDragDetector.isScaling();
boolean didntDrag = !wasDragging && !mScaleDragDetector.isDragging();
mBlockParentIntercept = didntScale && didntDrag;
}
// Check to see if the user double tapped
if (null != mGestureDetector && mGestureDetector.onTouchEvent(ev)) {
handled = true;
}
}
return handled;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
// FIXME: 应该只反拦截水平方向的手式
ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
return super.onInterceptTouchEvent(event);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
ViewParent p = getParent();
if (p != null) p.requestDisallowInterceptTouchEvent(true);
}
return false;
}
private void propagateClicked() {
ViewParent parent = getParent();
while (parent != null && parent instanceof View) {
if (((View) parent).isClickable()) {
((View) parent).performClick();
break;
}
parent = parent.getParent();
}
}
private boolean isInScrollingContainer() {
ViewParent p = getParent();
while (p != null && p instanceof ViewGroup) {
if (((ViewGroup) p).shouldDelayChildPressedState()) {
return true;
}
p = p.getParent();
}
return false;
}
@Override
public void run() {
ViewParent parent = getParent();
while (parent != null && !(parent instanceof NavigationBarView)) {
parent = parent.getParent();
}
if (parent != null) {
((NavigationBarView) parent).onNavButtonTouched();
}
}
private void _propagatePressed(boolean pressed) {
ViewParent parent = getParent();
while (parent != null && parent instanceof View) {
if (((View) parent).isClickable()) {
((View) parent).setPressed(pressed);
break;
}
parent = parent.getParent();
}
}
private AdapterView getAdapterView() {
ViewParent t = getParent();
while (t != null) {
if (t instanceof AdapterView) {
return (AdapterView) t;
}
t = t.getParent();
}
return null;
}
@Override
public boolean dispatchTouchEvent(@NonNull MotionEvent ev) {
switch (ev.getAction()) {
case MotionEvent.ACTION_MOVE:
float deltaX = prevX - ev.getX();
if (!drag && Math.abs(deltaX) > mTouchSlop) {
final ViewParent parent = getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(true);
}
drag = true;
if (deltaX > 0) {
deltaX -= mTouchSlop;
} else {
deltaX += mTouchSlop;
}
}
if (drag) {
final int oldX = getScrollX();
final int range = getScrollRange();
boolean canOverscroll =
overscrollMode == OVER_SCROLL_ALWAYS
|| (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && range > 0);
if (canOverscroll) {
float pulledToY = oldX + deltaX;
if (pulledToY < 0) {
leftGlow.onPull(deltaX / getWidth(), 1.f - ev.getY() / getHeight());
if (!rightGlow.isFinished()) rightGlow.onRelease();
} else if (pulledToY > range) {
rightGlow.onPull(deltaX / getWidth(), ev.getY() / getHeight());
if (!leftGlow.isFinished()) leftGlow.onRelease();
}
if (leftGlow != null && (!leftGlow.isFinished() || !rightGlow.isFinished()))
postInvalidate();
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (drag) {
drag = false;
if (leftGlow != null) {
leftGlow.onRelease();
rightGlow.onRelease();
}
}
break;
}
prevX = ev.getX();
return super.dispatchTouchEvent(ev);
}
/** hide all internal children (i.e., actual tabs) */
@Override
public boolean hides(View view) {
android.view.ViewParent parent = view.getParent();
while (parent != null) {
if (parent.getClass().getName().contains("TabWidget")) {
return true;
}
parent = parent.getParent();
}
return super.hides(view);
}
private void requestParentTouchRecursive(
@NonNull ViewParent argThisParent, boolean argDisallowTouch) {
argThisParent.requestDisallowInterceptTouchEvent(argDisallowTouch);
ViewParent nextParent = argThisParent.getParent();
if (nextParent != null) {
// Log.d("PlayerSeekbar", nextParent.toString() + " -> " + argDisallowTouch);
requestParentTouchRecursive(nextParent, argDisallowTouch);
}
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
ViewParent parent = this.getParent();
while (parent != null) {
if (parent instanceof ScrollDownLayout) {
((ScrollDownLayout) parent).setAssociatedScrollView(this);
break;
}
parent = parent.getParent();
}
}
protected boolean isViewDescendant(View v) {
ViewParent parent = v.getParent();
while (parent != null) {
if (parent == this) {
return true;
}
parent = parent.getParent();
}
return false;
}
private void getViewParentsFromImageView(View v) {
ViewParent tmp = v.getParent();
if (tmp == null) {
return;
}
viewParents.add(tmp);
while (tmp.getParent() != null) {
tmp = tmp.getParent();
viewParents.add(tmp);
}
}
@SuppressLint("NewApi")
public boolean isInScrollingContainer() {
ViewParent p = getParent();
while (p != null && p instanceof ViewGroup) {
if (VERSION.SDK_INT >= VERSION_CODES.ICE_CREAM_SANDWICH
&& ((ViewGroup) p).shouldDelayChildPressedState()) {
return true;
}
p = p.getParent();
}
return false;
}
@Override
public void setZoomable(boolean zoomable) {
mZoomEnabled = zoomable;
update();
View v = getImageView();
if (!zoomable && v != null) {
ViewParent parent = v.getParent();
if (parent != null) {
parent.requestDisallowInterceptTouchEvent(false);
}
}
}
private void performAdapterViewItemClick(MotionEvent e) {
ViewParent t = getParent();
while (t != null) {
if (t instanceof AdapterView) {
AdapterView view = (AdapterView) t;
int p = view.getPositionForView(SwipeLayout.this);
if (p != AdapterView.INVALID_POSITION
&& view.performItemClick(view.getChildAt(p), p, view.getAdapter().getItemId(p))) return;
} else {
if (t instanceof View && ((View) t).performClick()) return;
}
t = t.getParent();
}
}
@Override
public final boolean onTouch(View v, MotionEvent ev) {
boolean handled = false;
if (mZoomEnabled && hasDrawable((ImageView) v)) {
ViewParent parent = v.getParent();
switch (ev.getAction()) {
case ACTION_DOWN:
// First, disable the Parent from intercepting the touch
// event
if (null != parent) parent.requestDisallowInterceptTouchEvent(true);
else Log.i(LOG_TAG, "onTouch getParent() returned null");
// If we're flinging, and the user presses down, cancel
// fling
cancelFling();
break;
case ACTION_CANCEL:
case ACTION_UP:
// If the user has zoomed less than min scale, zoom back
// to min scale
if (getScale() < mMinScale) {
RectF rect = getDisplayRect();
if (null != rect) {
v.post(
new AnimatedZoomRunnable(getScale(), mMinScale, rect.centerX(), rect.centerY()));
handled = true;
}
}
break;
}
// Check to see if the user double tapped
if (null != mGestureDetector && mGestureDetector.onTouchEvent(ev)) {
handled = true;
}
if (!handled && null != parent) {
parent.requestDisallowInterceptTouchEvent(false);
}
// Finally, try the Scale/Drag detector
if (null != mScaleDragDetector && mScaleDragDetector.onTouchEvent(ev)) {
handled = true;
}
}
return handled;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
int action = event.getAction();
float x = event.getX();
float y = event.getY();
float deltaX = Math.abs(x - mFirstDownX);
float deltaY = Math.abs(y - mFirstDownY);
switch (action) {
case MotionEvent.ACTION_DOWN:
ViewParent mParent = getParent();
if (mParent != null) {
// 通知父控件不要拦截本view的触摸事件
mParent.requestDisallowInterceptTouchEvent(true);
}
mFirstDownX = x;
mFirstDownY = y;
bmCurBtnPic = bmBtnPressed;
startBtnPos = mChecked ? onBtnPos : offBtnPos;
break;
case MotionEvent.ACTION_MOVE:
float time = event.getEventTime() - event.getDownTime();
curBtnPos = startBtnPos + event.getX() - mFirstDownX;
if (curBtnPos >= onBtnPos) {
curBtnPos = onBtnPos;
}
if (curBtnPos <= offBtnPos) {
curBtnPos = offBtnPos;
}
mTurningOn = curBtnPos > bgWidth / 2 - btnWidth / 2;
break;
case MotionEvent.ACTION_UP:
bmCurBtnPic = bmBtnNormal;
time = event.getEventTime() - event.getDownTime();
if (deltaY < mTouchSlop && deltaX < mTouchSlop && time < mClickTimeout) {
if (mPerformClick == null) {
mPerformClick = new PerformClick();
}
if (!post(mPerformClick)) {
performClick();
}
} else {
startAnimation(mTurningOn);
}
break;
}
invalidate();
return isEnabled();
}
private void a(View paramView, CoordinatorLayout paramCoordinatorLayout)
{
g = paramCoordinatorLayout.findViewById(f);
if (g != null)
{
View localView = g;
for (ViewParent localViewParent = g.getParent(); (localViewParent != paramCoordinatorLayout) && (localViewParent != null); localViewParent = localViewParent.getParent())
{
if (localViewParent == paramView)
{
if (paramCoordinatorLayout.isInEditMode())
{
h = null;
g = null;
return;
}
throw new IllegalStateException("Anchor must not be a descendant of the anchored view");
}
if ((localViewParent instanceof View)) {
localView = (View)localViewParent;
}
}
h = localView;
return;
}
if (paramCoordinatorLayout.isInEditMode())
{
h = null;
g = null;
return;
}
throw new IllegalStateException("Could not find CoordinatorLayout descendant view with id " + paramCoordinatorLayout.getResources().getResourceName(f) + " to anchor view " + paramView);
}
/**
* 通知父类不要拦截touch事件 Tries to claim the user's drag motion, and requests disallowing any ancestors
* from stealing events in the drag.
*/
private void attemptClaimDrag() {
mParent = getParent();
if (mParent != null) {
// 通知父类不要拦截touch事件
mParent.requestDisallowInterceptTouchEvent(true);
}
}
/**
* @param arg0
* @return
*/
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
ViewParent viewParent = getParent();
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE:
viewParent.requestDisallowInterceptTouchEvent(true);
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
viewParent.requestDisallowInterceptTouchEvent(false);
break;
}
return super.onTouchEvent(event);
}
private LinearLayout getLayout(ViewParent parent) {
if (parent instanceof LinearLayout) return (LinearLayout) parent;
if (parent != null) {
return getLayout(parent.getParent());
} else {
return null;
}
}
private AdapterView findParentAdapterView() {
if (parentAdapter != null) {
return parentAdapter;
}
ViewParent current = getParent();
while (true) {
if (current instanceof AdapterView) {
parentAdapter = (AdapterView) current;
return parentAdapter;
} else {
try {
current = current.getParent();
} catch (NullPointerException npe) {
throw new RuntimeException("Could not find EventBusInstance parent AdapterView");
}
}
}
}