/**
* Determine drag.
*
* @param ev the ev
*/
private void determineDrag(MotionEvent ev) {
final int activePointerId = mActivePointerId;
final int pointerIndex = getPointerIndex(ev, activePointerId);
if (activePointerId == INVALID_POINTER) {
return;
}
final float x = MotionEventCompat.getX(ev, pointerIndex);
final float dx = x - mLastMotionX;
final float xDiff = Math.abs(dx);
final float y = MotionEventCompat.getY(ev, pointerIndex);
final float dy = y - mLastMotionY;
final float yDiff = Math.abs(dy);
if (xDiff > (isMenuOpen() ? mTouchSlop / 2 : mTouchSlop)
&& xDiff > yDiff
&& thisSlideAllowed(dx)) {
startDrag();
mLastMotionX = x;
mLastMotionY = y;
setScrollingCacheEnabled(true);
// TODO add back in touch slop check
} else if (xDiff > mTouchSlop) {
mIsUnableToDrag = true;
}
}
@Override
public boolean onTouchEvent(@NonNull MotionEvent event) {
if (!isEnabled() || mNestedScrollInProgress) {
// Fail fast if we're not in a state where a swipe is possible
return false;
}
final int action = MotionEventCompat.getActionMasked(event);
final int pointerIndex = MotionEventCompat.findPointerIndex(event, mActivePointerId);
switch (action) {
case MotionEvent.ACTION_MOVE:
releaseEvent();
mLastMoveEvent = MotionEvent.obtain(event);
return pointerIndex >= 0 && onMoveTouchEvent(event, pointerIndex);
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (mActivePointerId == INVALID_POINTER_ID) {
return false;
}
touchUp(event);
mLastEventOffset = -1;
mFirstTouchDownPointY = -1;
mActivePointerId = INVALID_POINTER_ID;
return false;
}
return true;
}
public boolean onGenericMotionEvent(MotionEvent var1) {
if ((MotionEventCompat.getSource(var1) & 2) != 0) {
switch (var1.getAction()) {
case 8:
if (!this.mIsBeingDragged) {
float var2 = MotionEventCompat.getAxisValue(var1, 9);
if (var2 != 0.0F) {
int var3 = (int) (this.getVerticalScrollFactorCompat() * var2);
int var4 = this.getScrollRange();
int var6 = this.getScrollY();
int var5 = var6 - var3;
if (var5 < 0) {
var3 = 0;
} else {
var3 = var5;
if (var5 > var4) {
var3 = var4;
}
}
if (var3 != var6) {
super.scrollTo(this.getScrollX(), var3);
return true;
}
}
}
}
}
return false;
}
private float getMotionEventY(@NonNull MotionEvent ev, int activePointerId) {
final int index = MotionEventCompat.findPointerIndex(ev, activePointerId);
if (index < 0) {
return -1;
}
return MotionEventCompat.getY(ev, index);
}
private float getMotionEventY(MotionEvent ev, int activePointerId) {
int index = MotionEventCompat.findPointerIndex(ev, activePointerId);
if (index < 0) {
return -1.0F;
}
return MotionEventCompat.getY(ev, index);
}
private void onSecondaryPointerUp(MotionEvent ev) {
int pointerIndex = MotionEventCompat.getActionIndex(ev);
int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
if (pointerId == this.mActivePointerId) {
int newPointerIndex = pointerIndex == 0 ? 1 : 0;
this.mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
ensureTarget();
final int action = MotionEventCompat.getActionMasked(ev);
if (mReturningToStart && action == MotionEvent.ACTION_DOWN) {
mReturningToStart = false;
}
if (!isEnabled() || mReturningToStart || canChildScrollUp() || mRefreshing) {
// Fail fast if we're not in a state where a swipe is possible
return false;
}
switch (action) {
case MotionEvent.ACTION_DOWN:
setTargetOffsetTopAndBottom(mOriginalOffsetTop - mCircleView.getTop(), true);
mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
mIsBeingDragged = false;
final float initialDownY = getMotionEventY(ev, mActivePointerId);
if (initialDownY == -1) {
return false;
}
mInitialDownY = initialDownY;
break;
case MotionEvent.ACTION_MOVE:
if (mActivePointerId == INVALID_POINTER) {
Log.e(LOG_TAG, "Got ACTION_MOVE event but don't have an active pointer id.");
return false;
}
final float y = getMotionEventY(ev, mActivePointerId);
if (y == -1) {
return false;
}
final float yDiff = y - mInitialDownY;
if (yDiff > mTouchSlop && !mIsBeingDragged) {
mInitialMotionY = mInitialDownY + mTouchSlop;
mIsBeingDragged = true;
mProgress.setAlpha(STARTING_PROGRESS_ALPHA);
}
break;
case MotionEventCompat.ACTION_POINTER_UP:
onSecondaryPointerUp(ev);
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
mIsBeingDragged = false;
mActivePointerId = INVALID_POINTER;
break;
}
return mIsBeingDragged;
}
private void onPointerUp(MotionEvent e) {
final int actionIndex = MotionEventCompat.getActionIndex(e);
if (MotionEventCompat.getPointerId(e, actionIndex) == mScrollPointerId) {
// Pick a new pointer to pick up the slack.
final int newIndex = actionIndex == 0 ? 1 : 0;
mScrollPointerId = MotionEventCompat.getPointerId(e, newIndex);
mInitialTouchX = mLastTouchX = (int) (MotionEventCompat.getX(e, newIndex) + 0.5f);
mInitialTouchY = mLastTouchY = (int) (MotionEventCompat.getY(e, newIndex) + 0.5f);
}
}
private void onSecondaryPointerUp(MotionEvent ev) {
final int pointerIndex = MotionEventCompat.getActionIndex(ev);
final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
if (pointerId == mActivePointerId) {
// This was our active pointer going up. Choose a new
// active pointer and adjust accordingly.
final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (!mEnabled) {
return false;
}
final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;
if (action == MotionEvent.ACTION_CANCEL
|| action == MotionEvent.ACTION_UP
|| (action != MotionEvent.ACTION_DOWN && mIsUnableToDrag)) {
endDrag();
return false;
}
switch (action) {
case MotionEvent.ACTION_MOVE:
determineDrag(ev);
break;
case MotionEvent.ACTION_DOWN:
int index = MotionEventCompat.getActionIndex(ev);
mActivePointerId = MotionEventCompat.getPointerId(ev, index);
if (mActivePointerId == INVALID_POINTER) {
break;
}
mLastMotionX = mInitialMotionX = MotionEventCompat.getX(ev, index);
mLastMotionY = MotionEventCompat.getY(ev, index);
if (thisTouchAllowed(ev)) {
mIsBeingDragged = false;
mIsUnableToDrag = false;
if (isMenuOpen()
&& mViewBehind.menuTouchInQuickReturn(mContent, mCurItem, ev.getX() + mScrollX)) {
mQuickReturn = true;
}
} else {
mIsUnableToDrag = true;
}
break;
case MotionEventCompat.ACTION_POINTER_UP:
onSecondaryPointerUp(ev);
break;
}
if (!mIsBeingDragged) {
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(ev);
}
return mIsBeingDragged || mQuickReturn;
}
public boolean onInterceptTouchEvent(MotionEvent ev) {
ensureTarget();
int action = MotionEventCompat.getActionMasked(ev);
if ((this.mReturningToStart) && (action == 0)) {
this.mReturningToStart = false;
}
if ((!isEnabled()) || (this.mReturningToStart) || (canChildScrollUp()) || (this.mRefreshing)) {
return false;
}
switch (action) {
case 0:
setTargetOffsetTopAndBottom(this.mOriginalOffsetTop - this.mCircleView.getTop(), true);
this.mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
this.mIsBeingDragged = false;
float initialDownY = getMotionEventY(ev, this.mActivePointerId);
if (initialDownY == -1.0F) {
return false;
}
this.mInitialDownY = initialDownY;
break;
case 2:
if (this.mActivePointerId == -1) {
Log.e(LOG_TAG, "Got ACTION_MOVE event but don't have an active pointer id.");
return false;
}
float y = getMotionEventY(ev, this.mActivePointerId);
if (y == -1.0F) {
return false;
}
float yDiff = y - this.mInitialDownY;
if ((yDiff > this.mTouchSlop) && (!this.mIsBeingDragged)) {
this.mInitialMotionY = (this.mInitialDownY + this.mTouchSlop);
this.mIsBeingDragged = true;
this.mProgress.setAlpha(76);
}
break;
case 6:
onSecondaryPointerUp(ev);
break;
case 1:
case 3:
this.mIsBeingDragged = false;
this.mActivePointerId = -1;
case 4:
case 5:
}
return this.mIsBeingDragged;
}
/** @see ViewGroup#onInterceptTouchEvent(MotionEvent) */
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (!isEnabled() || mNestedScrollInProgress) {
return false;
}
if (!mEnableFresh && !mEnablePullLoad) {
return false;
}
final int action = MotionEventCompat.getActionMasked(event);
switch (action) {
case MotionEvent.ACTION_DOWN:
mActivePointerId = MotionEventCompat.getPointerId(event, 0);
mFirstTouchDownPointY = getMotionEventY(event, mActivePointerId);
mLastEventOffset = (int) mFirstTouchDownPointY;
break;
case MotionEvent.ACTION_MOVE:
if (mActivePointerId == INVALID_POINTER_ID) {
return false;
}
final float currentY = getMotionEventY(event, mActivePointerId);
if (currentY == -1) {
return false;
}
if (mFirstTouchDownPointY == -1) {
mFirstTouchDownPointY = currentY;
}
if (mLastEventOffset == -1) mLastEventOffset = (int) currentY;
final float yDiff = currentY - mFirstTouchDownPointY;
// State is changed to drag if over slop
if (Math.abs(yDiff) > ViewConfiguration.get(getContext()).getScaledTouchSlop()) {
return shouldIntercept((int) yDiff);
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
mActivePointerId = INVALID_POINTER_ID;
break;
}
return false;
}
/**
* On secondary pointer up.
*
* @param ev the ev
*/
private void onSecondaryPointerUp(MotionEvent ev) {
final int pointerIndex = MotionEventCompat.getActionIndex(ev);
final int pointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
if (pointerId == mActivePointerId) {
// This was our active pointer going up. Choose a new
// active pointer and adjust accordingly.
final int newPointerIndex = pointerIndex == 0 ? 1 : 0;
mLastMotionX = MotionEventCompat.getX(ev, newPointerIndex);
mActivePointerId = MotionEventCompat.getPointerId(ev, newPointerIndex);
if (mVelocityTracker != null) {
mVelocityTracker.clear();
}
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (!isEnabled() || canChildScrollUp() || mRefreshing) {
return false;
}
final int action = MotionEventCompat.getActionMasked(ev);
switch (action) {
case MotionEvent.ACTION_DOWN:
setTargetOffsetTop(0, true);
mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
mIsBeingDragged = false;
final float initialMotionY = getMotionEventY(ev, mActivePointerId);
if (initialMotionY == -1) {
return false;
}
mInitialMotionY = initialMotionY;
break;
case MotionEvent.ACTION_MOVE:
if (mActivePointerId == INVALID_POINTER) {
return false;
}
final float y = getMotionEventY(ev, mActivePointerId);
if (y == -1) {
return false;
}
final float yDiff = y - mInitialMotionY;
// if (Math.abs(yDiff) > mTouchSlop && !mIsBeingDragged) {
// mIsBeingDragged = true;
// mMode = yDiff > 0 ? MODE_TOP : MODE_BOTTOM;
// }
if (yDiff > mTouchSlop && !mIsBeingDragged) {
mIsBeingDragged = true;
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
mIsBeingDragged = false;
mActivePointerId = INVALID_POINTER;
break;
case MotionEventCompat.ACTION_POINTER_UP:
onSecondaryPointerUp(ev);
break;
}
return mIsBeingDragged;
}
public void onTouchEvent(MotionEvent event) {
mGestrueDetector.onTouchEvent(event);
int action = MotionEventCompat.getActionMasked(event);
switch (action) {
case (MotionEvent.ACTION_UP):
// Log.d(DEBUG_TAG, "Action was UP");
if (mStarted) {
mListener.onDragEnd(mOriginalEvent, event);
}
mStarted = false;
break;
case (MotionEvent.ACTION_DOWN):
// need to set this, quick tap will not generate drap event, so the
// originalEvent may be null for case action_up
// which lead to null pointer
mOriginalEvent = event;
break;
case (MotionEvent.ACTION_CANCEL):
Log.d(DEBUG_TAG, "Action was cancel!");
if (mStarted) {
mListener.onDragEnd(mOriginalEvent, event);
}
mStarted = false;
break;
}
}
public boolean dispatchTouchEvent(MotionEvent ev) {
if (isEnabled() && isSlideEnable()) {
int action = MotionEventCompat.getActionMasked(ev);
if (action == MotionEvent.ACTION_DOWN) {
int downPosition = pointToPosition((int) ev.getX(), (int) ev.getY());
int opendPosition = mTouchListener.getOpendPosition();
// There is a item in opend or half opend(exception occured in
// previous slideing event) status
if (opendPosition != INVALID_POSITION) {
// if slideing or auto
// slideing(SlideTouchListener.autoScroll()) has not
// finished,drop this motion event(avoid
// NullPointerException)
if (mTouchListener.isInSliding()) {
return false;
}
// if down position not equals the opend position,drop this
// motion event and close the opend item
if (downPosition != opendPosition) {
mTouchListener.closeOpenedItem();
return false;
}
}
}
}
return super.dispatchTouchEvent(ev);
}
public boolean onTouchEvent(@NonNull MotionEvent event) {
final int action = MotionEventCompat.getActionMasked(event);
if (action == MotionEvent.ACTION_MOVE) {
mVelocityTracker.addMovement(event);
}
if (mState == State.DRAGGING) {
switch (action) {
case MotionEvent.ACTION_MOVE:
int deltaY = calculateDistanceForDrag(event);
mProgressManager.applyDelta(deltaY);
break;
case MotionEvent.ACTION_UP:
finishMotionEvent();
if (type == LEFT) {
mCalendarView.prev();
} else if (type == RIGHT) {
mCalendarView.next();
}
break;
}
} else if (action == MotionEvent.ACTION_MOVE) {
checkForResizing(event);
} else if (action == MotionEvent.ACTION_UP) {
if (type == LEFT) {
mCalendarView.prev();
} else if (type == RIGHT) {
mCalendarView.next();
}
}
return true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabled()) {
return false;
}
int actionMasked = MotionEventCompat.getActionMasked(event);
switch (actionMasked) {
case MotionEvent.ACTION_DOWN:
mDownX = event.getX();
startDragging(event, isInScrollingContainer());
break;
case MotionEvent.ACTION_MOVE:
if (isDragging()) {
updateDragging(event);
} else {
final float x = event.getX();
if (Math.abs(x - mDownX) > mTouchSlop) {
startDragging(event, false);
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
stopDragging();
break;
}
return true;
}
// Change page
protected void swipePage(View v, MotionEvent event, int book) {
int action = MotionEventCompat.getActionMasked(event);
switch (action) {
case (MotionEvent.ACTION_DOWN):
swipeOriginX = event.getX();
swipeOriginY = event.getY();
break;
case (MotionEvent.ACTION_UP):
int quarterWidth = (int) (screenWidth * 0.25);
float diffX = swipeOriginX - event.getX();
float diffY = swipeOriginY - event.getY();
float absDiffX = Math.abs(diffX);
float absDiffY = Math.abs(diffY);
if ((diffX > quarterWidth) && (absDiffX > absDiffY)) {
try {
navigator.goToNextChapter(index);
} catch (Exception e) {
errorMessage(getString(R.string.error_cannotTurnPage));
}
} else if ((diffX < -quarterWidth) && (absDiffX > absDiffY)) {
try {
navigator.goToPrevChapter(index);
} catch (Exception e) {
errorMessage(getString(R.string.error_cannotTurnPage));
}
}
break;
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
final int action = MotionEventCompat.getActionMasked(ev);
if ((action != MotionEvent.ACTION_DOWN)) {
mDragHelper.cancel();
return super.onInterceptTouchEvent(ev);
}
final float x = ev.getX();
final float y = ev.getY();
boolean interceptTap = false;
switch (action) {
case MotionEvent.ACTION_DOWN:
{
mInitialMotionX = x;
mInitialMotionY = y;
interceptTap = mDragHelper.isViewUnder(mTitle, (int) x, (int) y);
break;
}
default:
break;
}
return mDragHelper.shouldInterceptTouchEvent(ev) || interceptTap;
}
/** @see android.widget.ListView#onInterceptTouchEvent(android.view.MotionEvent) */
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
int action = MotionEventCompat.getActionMasked(ev);
final float x = ev.getX();
final float y = ev.getY();
if (isEnabled() && touchListener.isSwipeEnabled()) {
if (touchState == TOUCH_STATE_SCROLLING_X) {
return touchListener.onTouch(this, ev);
}
switch (action) {
case MotionEvent.ACTION_MOVE:
checkInMoving(x, y);
return touchState == TOUCH_STATE_SCROLLING_Y;
case MotionEvent.ACTION_DOWN:
touchListener.onTouch(this, ev);
touchState = TOUCH_STATE_REST;
lastMotionX = x;
lastMotionY = y;
return false;
case MotionEvent.ACTION_CANCEL:
touchState = TOUCH_STATE_REST;
break;
case MotionEvent.ACTION_UP:
touchListener.onTouch(this, ev);
return touchState == TOUCH_STATE_SCROLLING_Y;
default:
break;
}
}
return super.onInterceptTouchEvent(ev);
}
/**
* Triggered
*
* @param event Down event
*/
private boolean onDownEvent(@NonNull MotionEvent event) {
if (MotionEventCompat.getActionMasked(event) != MotionEvent.ACTION_DOWN) {
throw new IllegalStateException("Has to be down event!");
}
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
} else {
mVelocityTracker.clear();
}
mDownY = event.getY();
mDownX = event.getX();
if (!mScroller.isFinished()) {
mScroller.forceFinished(true);
if (mScroller.getFinalY() == 0) {
mDragStartY = mDownY + mScroller.getStartY() - mScroller.getCurrY();
} else {
mDragStartY = mDownY - mScroller.getCurrY();
}
mState = State.DRAGGING;
return true;
} else {
return false;
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
clearExtraInformationTextViews();
scaleDetector.onTouchEvent(event);
// Check if multitouch action or single touch based on pointer count.
if (event.getPointerCount() > 1) {
clearExtraInformationTextViews();
gestureTypeTV.setText("MULTI TOUCH EVENT");
textView3.setText("Num Pointers: " + event.getPointerCount());
int action = MotionEventCompat.getActionMasked(event);
textView4.setText(actionToString(action));
int index = MotionEventCompat.getActionIndex(event);
textView5.setText("Pointer index: " + index);
} else gestureDetect.onTouchEvent(event);
return true;
}
private void onSecondaryPointerUp(MotionEvent var1) {
int var2 = (var1.getAction() & '\uff00') >> 8;
if (MotionEventCompat.getPointerId(var1, var2) == this.mActivePointerId) {
byte var3;
if (var2 == 0) {
var3 = 1;
} else {
var3 = 0;
}
this.mLastMotionY = (int) MotionEventCompat.getY(var1, var3);
this.mActivePointerId = MotionEventCompat.getPointerId(var1, var3);
if (this.mVelocityTracker != null) {
this.mVelocityTracker.clear();
}
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
int action = MotionEventCompat.getActionMasked(ev);
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
return false;
}
return mDragHlper.shouldInterceptTouchEvent(ev);
}
/**
* Gets the pointer index.
*
* @param ev the ev
* @param id the id
* @return the pointer index
*/
private int getPointerIndex(MotionEvent ev, int id) {
int activePointerIndex = MotionEventCompat.findPointerIndex(ev, id);
if (activePointerIndex == -1) {
mActivePointerId = INVALID_POINTER;
}
return activePointerIndex;
}
@Override
@SuppressLint("ClickableViewAccessibility")
public boolean onTouchEvent(@NonNull MotionEvent ev) {
// Cancel animate
cancelAnimation();
try {
mDragHelper.processTouchEvent(ev);
} catch (Throwable e) {
// Ignore
}
final int action = MotionEventCompat.getActionMasked(ev);
final float x = ev.getX();
final float y = ev.getY();
if (action == MotionEvent.ACTION_DOWN) {
mIntercepted = true;
}
if (!mIntercepted) return false;
if (!isDrawersTouchable()) return false;
switch (action) {
case MotionEvent.ACTION_DOWN:
mInitialMotionX = x;
mInitialMotionY = y;
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (mLeftState == STATE_SLIDING) {
if (mLeftOpened && mLeftPercent < CLOSE_SENSITIVITY) startAnimation(true, false, false);
else if (!mLeftOpened && mLeftPercent < OPEN_SENSITIVITY)
startAnimation(true, false, true);
else if (mLeftOpened && mLeftPercent >= CLOSE_SENSITIVITY)
startAnimation(true, true, true);
else if (!mLeftOpened && mLeftPercent >= OPEN_SENSITIVITY)
startAnimation(true, true, false);
} else if (mRightState == STATE_SLIDING) {
if (mRightOpened && mRightPercent < CLOSE_SENSITIVITY)
startAnimation(false, false, false);
else if (!mRightOpened && mRightPercent < OPEN_SENSITIVITY)
startAnimation(false, false, true);
else if (mRightOpened && mRightPercent >= CLOSE_SENSITIVITY)
startAnimation(false, true, true);
else if (!mRightOpened && mRightPercent >= OPEN_SENSITIVITY)
startAnimation(false, true, false);
} else if (shouldCloseDrawers(x, y)) {
closeDrawers();
}
break;
}
return true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
mOverlayGesturePresenter.onTouchEvent(event);
int action = MotionEventCompat.getActionMasked(event);
switch (action) {
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
mDownX = -1;
}
return true;
}
/**
* Override method to intercept only touch events over the drag view and to cancel the drag when
* the action associated to the MotionEvent is equals to ACTION_CANCEL or ACTION_UP.
*
* @param ev captured.
* @return true if the view is going to process the touch event or false if not.
*/
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
final int action = MotionEventCompat.getActionMasked(ev);
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
viewDragHelper.cancel();
return false;
}
boolean interceptTap = viewDragHelper.isViewUnder(dragView, (int) ev.getX(), (int) ev.getY());
return viewDragHelper.shouldInterceptTouchEvent(ev) || interceptTap;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
final int action = MotionEventCompat.getActionMasked(ev);
if (!isEnabled()
|| !isTouchEnabled()
|| (mIsUnableToDrag && action != MotionEvent.ACTION_DOWN)) {
mDragHelper.cancel();
return super.onInterceptTouchEvent(ev);
}
if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
mDragHelper.cancel();
return false;
}
final float x = ev.getX();
final float y = ev.getY();
switch (action) {
case MotionEvent.ACTION_DOWN:
{
mIsUnableToDrag = false;
mInitialMotionX = x;
mInitialMotionY = y;
break;
}
case MotionEvent.ACTION_MOVE:
{
final float adx = Math.abs(x - mInitialMotionX);
final float ady = Math.abs(y - mInitialMotionY);
final int dragSlop = mDragHelper.getTouchSlop();
// Handle any horizontal scrolling on the drag view.
if (mIsUsingDragViewTouchEvents && adx > dragSlop && ady < dragSlop) {
return super.onInterceptTouchEvent(ev);
}
if ((ady > dragSlop && adx > ady)
|| !isDragViewUnder((int) mInitialMotionX, (int) mInitialMotionY)) {
mDragHelper.cancel();
mIsUnableToDrag = true;
return false;
}
break;
}
}
return mDragHelper.shouldInterceptTouchEvent(ev);
}
