private void reset() {
if (mPrevEvent != null) {
mPrevEvent.recycle();
mPrevEvent = null;
}
if (mCurrEvent != null) {
mCurrEvent.recycle();
mCurrEvent = null;
}
mSloppyGesture = false;
mGestureInProgress = false;
}
public void onDragOver(DragObject d) {
final DragView dragView = d.dragView;
final int scrollOffset = mScrollView.getScrollY();
final float[] r = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, dragView, null);
r[0] -= getPaddingLeft();
r[1] -= getPaddingTop();
final long downTime = SystemClock.uptimeMillis();
final MotionEvent translatedEv =
MotionEvent.obtain(downTime, downTime, MotionEvent.ACTION_MOVE, d.x, d.y, 0);
if (!mAutoScrollHelper.isEnabled()) {
mAutoScrollHelper.setEnabled(true);
}
final boolean handled = mAutoScrollHelper.onTouch(this, translatedEv);
translatedEv.recycle();
if (handled) {
mReorderAlarm.cancelAlarm();
} else {
mTargetCell =
mContent.findNearestArea((int) r[0], (int) r[1] + scrollOffset, 1, 1, mTargetCell);
if (isLayoutRtl()) {
mTargetCell[0] = mContent.getCountX() - mTargetCell[0] - 1;
}
if (mTargetCell[0] != mPreviousTargetCell[0] || mTargetCell[1] != mPreviousTargetCell[1]) {
mReorderAlarm.cancelAlarm();
mReorderAlarm.setOnAlarmListener(mReorderAlarmListener);
mReorderAlarm.setAlarm(REORDER_DELAY);
mPreviousTargetCell[0] = mTargetCell[0];
mPreviousTargetCell[1] = mTargetCell[1];
}
}
}
private boolean processTouch(MotionEvent event) {
// Checking if that event was already processed
// (by onInterceptTouchEvent prior to onTouchEvent)
long eventTime = event.getEventTime();
int action = event.getActionMasked();
if (lastTouchEventTime == eventTime && lastTouchEventAction == action) {
return lastTouchEventResult;
}
lastTouchEventTime = eventTime;
lastTouchEventAction = action;
if (getCount() > 0) {
// Fixing event's Y position due to performed translation
MotionEvent eventCopy = MotionEvent.obtain(event);
eventCopy.offsetLocation(0, getTranslationY());
lastTouchEventResult = gestureDetector.onTouchEvent(eventCopy);
eventCopy.recycle();
} else {
lastTouchEventResult = false;
}
if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_CANCEL) {
onUpOrCancel();
}
return lastTouchEventResult;
}
private void setContext(MotionEvent curr) {
if (mCurrEvent != null) {
mCurrEvent.recycle();
}
mCurrEvent = MotionEvent.obtain(curr);
mCurrLen = -1;
mPrevLen = -1;
mScaleFactor = -1;
final MotionEvent prev = mPrevEvent;
final float px0 = prev.getX(0);
final float py0 = prev.getY(0);
final float px1 = prev.getX(1);
final float py1 = prev.getY(1);
final float cx0 = curr.getX(0);
final float cy0 = curr.getY(0);
final float cx1 = curr.getX(1);
final float cy1 = curr.getY(1);
final float pvx = px1 - px0;
final float pvy = py1 - py0;
final float cvx = cx1 - cx0;
final float cvy = cy1 - cy0;
mPrevFingerDiffX = pvx;
mPrevFingerDiffY = pvy;
mCurrFingerDiffX = cvx;
mCurrFingerDiffY = cvy;
mTimeDelta = curr.getEventTime() - prev.getEventTime();
mCurrPressure = curr.getPressure(0) + curr.getPressure(1);
mPrevPressure = prev.getPressure(0) + prev.getPressure(1);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
final int action = event.getAction();
final float x = event.getX();
final float y = event.getY();
switch (action) {
case MotionEvent.ACTION_DOWN:
if (mCurrentDownEvent != null) {
mCurrentDownEvent.recycle();
}
mCurrentDownEvent = MotionEvent.obtain(event);
mAlwaysInTapRegion = true;
showPress(mCurrentDownEvent, true);
break;
case MotionEvent.ACTION_MOVE:
if (mAlwaysInTapRegion) {
final int deltaX = (int) (x - mCurrentDownEvent.getX());
final int deltaY = (int) (y - mCurrentDownEvent.getY());
int distance = (deltaX * deltaX) + (deltaY * deltaY);
if (distance > mTouchSlopSquare) {
mAlwaysInTapRegion = false;
showPress(mCurrentDownEvent, false);
}
}
break;
case MotionEvent.ACTION_UP:
showPress(mCurrentDownEvent, false);
if (mAlwaysInTapRegion) {
onTap(mCurrentDownEvent);
}
}
return true;
}
/** Force show keyboard */
public void showKeyboard() {
this.requestFocus();
Context context = getContext();
if (Activity.class.isInstance(context)) {
((Activity) context)
.getWindow()
.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
}
// mImm.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT | InputMethodManager.SHOW_FORCED);
// mImm.toggleSoftInput(0, 0);
// Trick used to create a fake touch event on the editText
MotionEvent event =
MotionEvent.obtain(
0,
SystemClock.uptimeMillis(),
MotionEvent.ACTION_DOWN | MotionEvent.ACTION_UP,
this.getMeasuredWidth(),
0,
0);
this.onTouchEvent(event);
event.recycle();
}
public void init(MotionEvent e) {
if (mInitialEvent != null) {
mInitialEvent.recycle();
}
mInitialEvent = MotionEvent.obtain(e);
mIsPending = true;
}
public void dispatchPointer(MotionEvent event) {
if (mEngine != null) {
mEngine.dispatchPointer(event);
} else {
event.recycle();
}
}
private void clearTouchTarget() {
mTouchTarget = null;
if (mDownEvent != null) {
mDownEvent.recycle();
mDownEvent = null;
}
}
public boolean dispatchTouchEvent(MotionEvent paramMotionEvent)
{
float f1 = paramMotionEvent.getRawX();
float f2 = paramMotionEvent.getRawY();
if ((this.f == null) && (this.a != null) && (this.a.getVisibility() == 0) && (this.b != null))
{
this.b.getLocationOnScreen(this.g);
if ((f1 >= this.g[0]) && (f1 < this.g[0] + this.b.getWidth()) && (f2 >= this.g[1]) && (f2 < this.g[1] + this.b.getHeight())) {
this.f = this.a;
}
}
if ((this.f == null) && (this.a != null) && (this.a.getVisibility() == 0))
{
if ((this.d == null) || (this.d.getVisibility() != 0)) {
break label269;
}
this.d.getLocationOnScreen(this.g);
if (f2 >= this.g[1]) {
this.f = this.a;
}
if (f2 >= this.g[1]) {
this.f = this.a;
}
}
int i = paramMotionEvent.getAction();
if (this.f != null)
{
localView = this.f;
if (paramMotionEvent.getAction() == 3)
{
localView.dispatchTouchEvent(paramMotionEvent);
if ((i == 3) || (i == 1)) {
this.f = null;
}
}
}
label269:
while (this.e == null) {
for (;;)
{
View localView;
return true;
if ((this.c != null) && (this.c.getVisibility() == 0))
{
this.c.getLocationOnScreen(this.g);
break;
}
this.g[0] = 2147483647;
this.g[1] = 2147483647;
break;
MotionEvent localMotionEvent = MotionEvent.obtain(paramMotionEvent);
localMotionEvent.offsetLocation(getScrollX() - localView.getLeft(), getScrollY() - localView.getTop());
localView.dispatchTouchEvent(localMotionEvent);
localMotionEvent.recycle();
}
}
this.e.a(i);
return true;
}
private void clear() {
mActionDownInside.recycle();
mActionDownOutside.recycle();
mActionUpInside.recycle();
mActionUpOutside.recycle();
mActionMoveInside.recycle();
mActionMoveOutside.recycle();
mActionCancelInside.recycle();
mActionCancelOutside.recycle();
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
final float x = ev.getX();
final float y = ev.getY();
final int action = ev.getAction();
if (action == MotionEvent.ACTION_DOWN
&& mTouchTarget == null
&& mPinnedSection != null
&& isPinnedViewTouched(mPinnedSection.view, x, y)) { // create touch target
// user touched pinned view
mTouchTarget = mPinnedSection.view;
mTouchPoint.x = x;
mTouchPoint.y = y;
// copy down event for eventually be used later
mDownEvent = MotionEvent.obtain(ev);
}
if (mTouchTarget != null) {
if (isPinnedViewTouched(mTouchTarget, x, y)) { // forward event to pinned view
mTouchTarget.dispatchTouchEvent(ev);
}
if (action == MotionEvent.ACTION_UP) { // perform onClick on pinned view
super.dispatchTouchEvent(ev);
performPinnedItemClick();
clearTouchTarget();
} else if (action == MotionEvent.ACTION_CANCEL) { // cancel
clearTouchTarget();
} else if (action == MotionEvent.ACTION_MOVE) {
if (Math.abs(y - mTouchPoint.y) > mTouchSlop) {
// cancel sequence on touch target
MotionEvent event = MotionEvent.obtain(ev);
event.setAction(MotionEvent.ACTION_CANCEL);
mTouchTarget.dispatchTouchEvent(event);
event.recycle();
// provide correct sequence to super class for further handling
super.dispatchTouchEvent(mDownEvent);
super.dispatchTouchEvent(ev);
clearTouchTarget();
}
}
return true;
}
// call super if this was not our pinned view
return super.dispatchTouchEvent(ev);
}
private static void injectMotionEvent(
@NonNull ViewGroup container, @NonNull MotionEvent base, int action) {
long downTime = SystemClock.uptimeMillis();
long eventTime = SystemClock.uptimeMillis() + 100;
MotionEvent event =
MotionEvent.obtain(
downTime, eventTime, action, base.getX(), base.getY(), 0.0f, 0.0f, 0, 1.0f, 1.0f, 0, 0);
container.dispatchTouchEvent(event);
event.recycle();
}
private void removeOneComponent(GLView component) {
if (mMotionTarget == component) {
long now = SystemClock.uptimeMillis();
MotionEvent cancelEvent = MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0, 0, 0);
dispatchTouchEvent(cancelEvent);
cancelEvent.recycle();
}
component.onDetachFromRoot();
component.mParent = null;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
final int action = event.getAction();
boolean handled = false;
switch (action) {
case MotionEvent.ACTION_DOWN:
mCurrPercentage = 0;
mDownEvent = MotionEvent.obtain(event);
mPrevY = mDownEvent.getY();
break;
case MotionEvent.ACTION_MOVE:
if (mDownEvent != null && !mReturningToStart) {
final float eventY = event.getY();
float yDiff = eventY - mDownEvent.getY();
if (yDiff > mTouchSlop) {
// User velocity passed min velocity; trigger a refresh
if (yDiff > mDistanceToTriggerSync) {
// User movement passed distance; trigger a refresh
startRefresh();
handled = true;
break;
} else {
// Just track the user's movement
setTriggerPercentage(
mAccelerateInterpolator.getInterpolation(yDiff / mDistanceToTriggerSync));
float offsetTop = yDiff;
if (mPrevY > eventY) {
offsetTop = yDiff - mTouchSlop;
}
updateContentOffsetTop((int) (offsetTop));
if (mPrevY > eventY && (mTarget.getTop() < mTouchSlop)) {
// If the user puts the view back at the top, we
// don't need to. This shouldn't be considered
// cancelling the gesture as the user can restart from the top.
removeCallbacks(mCancel);
} else {
updatePositionTimeout();
}
mPrevY = event.getY();
handled = true;
}
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (mDownEvent != null) {
mDownEvent.recycle();
mDownEvent = null;
}
break;
}
return handled;
}
public boolean onTouchEvent(MotionEvent paramMotionEvent)
{
Object localObject = null;
int i1 = t.a(paramMotionEvent);
boolean bool2;
if (q == null)
{
bool2 = a(paramMotionEvent, 1);
if (!bool2) {}
}
for (;;)
{
Behavior localBehavior = ((d)q.getLayoutParams()).b();
boolean bool1;
if (localBehavior != null) {
bool1 = localBehavior.a(this, q, paramMotionEvent);
}
for (;;)
{
boolean bool3;
if (q == null)
{
bool3 = bool1 | super.onTouchEvent(paramMotionEvent);
paramMotionEvent = (MotionEvent)localObject;
}
do
{
if (((bool3) || (i1 != 0)) || (paramMotionEvent != null)) {
paramMotionEvent.recycle();
}
if ((i1 == 1) || (i1 == 3)) {
e();
}
return bool3;
paramMotionEvent = (MotionEvent)localObject;
bool3 = bool1;
} while (!bool2);
long l1;
if (0 == 0) {
l1 = SystemClock.uptimeMillis();
}
for (paramMotionEvent = MotionEvent.obtain(l1, l1, 3, 0.0F, 0.0F, 0);; paramMotionEvent = null)
{
super.onTouchEvent(paramMotionEvent);
bool3 = bool1;
break;
}
bool1 = false;
continue;
bool1 = false;
}
bool2 = false;
}
}
protected void cancelContentTouch() {
final long now = SystemClock.uptimeMillis();
final MotionEvent cancelEvent =
MotionEvent.obtain(now, now, MotionEvent.ACTION_CANCEL, 0.0f, 0.0f, 0);
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
getChildAt(i).dispatchTouchEvent(cancelEvent);
}
mContentContainer.dispatchTouchEvent(cancelEvent);
cancelEvent.recycle();
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
if (((!mEnabled || !mInterceptTouch) && mMode == MODE_READY) || mAlwaysOpened) {
return super.dispatchTouchEvent(ev);
}
if (mMode != MODE_FINISHED) {
onTouchEvent(ev);
if (mMode != MODE_SLIDE) {
super.dispatchTouchEvent(ev);
} else {
MotionEvent cancelEvent = MotionEvent.obtain(ev);
cancelEvent.setAction(MotionEvent.ACTION_CANCEL);
super.dispatchTouchEvent(cancelEvent);
cancelEvent.recycle();
}
return true;
} else {
final int action = ev.getAction();
Rect rect = new Rect();
View menu = getChildAt(0);
menu.getHitRect(rect);
if (!rect.contains((int) ev.getX(), (int) ev.getY())) {
if (action == MotionEvent.ACTION_UP && mCloseOnRelease && !mDispatchWhenOpened) {
close();
mCloseOnRelease = false;
} else {
if (action == MotionEvent.ACTION_DOWN && !mDispatchWhenOpened) {
mCloseOnRelease = true;
}
onTouchEvent(ev);
}
if (mDispatchWhenOpened) {
super.dispatchTouchEvent(ev);
}
return true;
} else {
onTouchEvent(ev);
ev.offsetLocation(-menu.getLeft(), -menu.getTop());
menu.dispatchTouchEvent(ev);
return true;
}
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
int action = ev.getAction() & MotionEvent.ACTION_MASK;
if (action == MotionEvent.ACTION_DOWN) {
mDownY = ev.getY();
mHeaderOwnsTouch = mHeader != null && mDownY <= mHeader.getHeight() + mHeaderOffset;
}
boolean handled;
if (mHeaderOwnsTouch) {
if (mHeader != null && Math.abs(mDownY - ev.getY()) <= mTouchSlop) {
handled = mHeader.dispatchTouchEvent(ev);
} else {
if (mHeader != null) {
MotionEvent cancelEvent = MotionEvent.obtain(ev);
cancelEvent.setAction(MotionEvent.ACTION_CANCEL);
mHeader.dispatchTouchEvent(cancelEvent);
cancelEvent.recycle();
}
MotionEvent downEvent =
MotionEvent.obtain(
ev.getDownTime(),
ev.getEventTime(),
ev.getAction(),
ev.getX(),
mDownY,
ev.getMetaState());
downEvent.setAction(MotionEvent.ACTION_DOWN);
handled = mList.dispatchTouchEvent(downEvent);
downEvent.recycle();
mHeaderOwnsTouch = false;
}
} else {
handled = mList.dispatchTouchEvent(ev);
}
return handled;
}
public void startSelectionActionMode() {
// Force the EditText to show the CAB (hacky!)
MotionEvent event =
MotionEvent.obtain(
SystemClock.uptimeMillis(),
SystemClock.uptimeMillis(),
MotionEvent.ACTION_DOWN,
0,
0,
0);
dispatchTouchEvent(event);
event.recycle();
}
private void dispatchUiEvents(boolean calledFromHandler) {
for (; ; ) {
MotionEvent event;
final int eventType;
final int flags;
synchronized (mLock) {
DispatchEvent d = mUiDispatchEventQueue.dequeue();
if (d == null) {
if (mUiDispatchScheduled) {
mUiDispatchScheduled = false;
if (!calledFromHandler) {
mUiHandler.removeMessages(UiHandler.MSG_DISPATCH_UI_EVENTS);
}
}
return;
}
event = d.mEvent;
if (event != null && (d.mFlags & FLAG_WEBKIT_TRANSFORMED_EVENT) != 0) {
event.scale(1.0f / d.mWebKitScale);
event.offsetLocation(-d.mWebKitXOffset, -d.mWebKitYOffset);
d.mFlags &= ~FLAG_WEBKIT_TRANSFORMED_EVENT;
}
eventType = d.mEventType;
if (eventType == EVENT_TYPE_TOUCH) {
event = mUiTouchStream.update(event);
if (DEBUG && event == null && d.mEvent != null) {
Log.d(TAG, "dispatchUiEvents: dropped event " + d.mEvent);
}
}
flags = d.mFlags;
if (event == d.mEvent) {
d.mEvent = null; // retain ownership of event, don't recycle it yet
}
recycleDispatchEventLocked(d);
if (eventType == EVENT_TYPE_CLICK) {
scheduleHideTapHighlightLocked();
}
}
// Handle the event.
if (event != null) {
dispatchUiEvent(event, eventType, flags);
event.recycle();
}
}
}
private void dispatchPointer(MotionEvent event) {
if (event.isTouchEvent()) {
synchronized (mLock) {
if (event.getAction() == MotionEvent.ACTION_MOVE) {
mPendingMove = event;
} else {
mPendingMove = null;
}
}
Message msg = mCaller.obtainMessageO(MSG_TOUCH_EVENT, event);
mCaller.sendMessage(msg);
} else {
event.recycle();
}
}
public void computeScroll() {
if (mDecelerationVelocity.x == 0.f && mDecelerationVelocity.y == 0.f)
return; // There's no deceleration in progress
final long currentTime = AnimationUtils.currentAnimationTimeMillis();
mDecelerationVelocity.x *= mChart.getDragDecelerationFrictionCoef();
mDecelerationVelocity.y *= mChart.getDragDecelerationFrictionCoef();
final float timeInterval = (float) (currentTime - mDecelerationLastTime) / 1000.f;
float distanceX = mDecelerationVelocity.x * timeInterval;
float distanceY = mDecelerationVelocity.y * timeInterval;
mDecelerationCurrentPoint.x += distanceX;
mDecelerationCurrentPoint.y += distanceY;
MotionEvent event =
MotionEvent.obtain(
currentTime,
currentTime,
MotionEvent.ACTION_MOVE,
mDecelerationCurrentPoint.x,
mDecelerationCurrentPoint.y,
0);
performDrag(event);
event.recycle();
mMatrix = mChart.getViewPortHandler().refresh(mMatrix, mChart, false);
mDecelerationLastTime = currentTime;
if (Math.abs(mDecelerationVelocity.x) >= 0.01 || Math.abs(mDecelerationVelocity.y) >= 0.01)
Utils.postInvalidateOnAnimation(
mChart); // This causes computeScroll to fire, recommended for this by Google
else {
// Range might have changed, which means that Y-axis labels
// could have changed in size, affecting Y-axis size.
// So we need to recalculate offsets.
mChart.calculateOffsets();
mChart.postInvalidate();
stopDeceleration();
}
}
private void e()
{
int i1 = 0;
if (q != null)
{
Behavior localBehavior = ((d)q.getLayoutParams()).b();
if (localBehavior != null)
{
long l1 = SystemClock.uptimeMillis();
MotionEvent localMotionEvent = MotionEvent.obtain(l1, l1, 3, 0.0F, 0.0F, 0);
localBehavior.a(this, q, localMotionEvent);
localMotionEvent.recycle();
}
q = null;
}
int i2 = getChildCount();
while (i1 < i2)
{
((d)getChildAt(i1).getLayoutParams()).f();
i1 += 1;
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
boolean intercept = false;
if (mDoubleTapToSleepEnabled) {
if (mService.getBarState() == StatusBarState.SHADE && ev.getY() < mStatusBarHeaderHeight) {
if (DEBUG) Log.w(TAG, "logging double tap gesture");
mDoubleTapGesture.onTouchEvent(ev);
}
}
final int h = getMeasuredHeight();
if (mDoubleTapToSleepLockScreen
&& mService.getBarState() == StatusBarState.KEYGUARD
&& (ev.getY() < (h / 3) || ev.getY() > (h - mStatusBarHeaderHeight))) {
if (DEBUG) Log.w(TAG, "logging lock screen double tap gesture");
mDoubleTapGesture.onTouchEvent(ev);
}
if (mNotificationPanel.isFullyExpanded()
&& mStackScrollLayout.getVisibility() == View.VISIBLE
&& mService.getBarState() == StatusBarState.KEYGUARD
&& !mService.isBouncerShowing()) {
intercept = mDragDownHelper.onInterceptTouchEvent(ev);
// wake up on a touch down event, if dozing
if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
mService.wakeUpIfDozing(ev.getEventTime(), ev);
}
}
if (!intercept) {
super.onInterceptTouchEvent(ev);
}
if (intercept) {
MotionEvent cancellation = MotionEvent.obtain(ev);
cancellation.setAction(MotionEvent.ACTION_CANCEL);
mStackScrollLayout.onInterceptTouchEvent(cancellation);
mNotificationPanel.onInterceptTouchEvent(cancellation);
cancellation.recycle();
}
return intercept;
}
@Override
public boolean onTouch(View v, MotionEvent event) {
if (!callback.canSwipe()) return false;
event.offsetLocation(translationX, 0);
if (targetWidth < 2) targetWidth = view.getWidth();
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
{
downX = event.getRawX();
velocityTracker = VelocityTracker.obtain();
velocityTracker.addMovement(event);
return false;
}
case MotionEvent.ACTION_UP:
{
if (velocityTracker == null) break;
velocityTracker.addMovement(event);
velocityTracker.computeCurrentVelocity(1000);
if (swiping) {
view.animate()
.translationX(0f)
.setDuration(animTime)
.setListener(
new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
callback.onBound(canSwitch, swipingLeft);
}
});
}
downX = 0;
translationX = 0;
swiping = false;
velocityTracker.recycle();
velocityTracker = null;
break;
}
case MotionEvent.ACTION_CANCEL:
{
if (velocityTracker == null) {
break;
}
view.animate().translationX(0f).setDuration(animTime).setListener(null);
downX = 0;
translationX = 0;
swiping = false;
velocityTracker.recycle();
velocityTracker = null;
break;
}
case MotionEvent.ACTION_MOVE:
{
if (velocityTracker == null) {
break;
}
velocityTracker.addMovement(event);
float deltaX = event.getRawX() - downX;
if (Math.abs(deltaX) > slop) {
swiping = true;
swipingLeft = deltaX < 0;
canSwitch =
Math.abs(deltaX)
>= ViewUnit.dp2px(
view.getContext(),
48); // Can switch tabs when deltaX >= 48 to prevent misuse
swipingSlop = (deltaX > 0 ? slop : -slop);
view.getParent().requestDisallowInterceptTouchEvent(true);
MotionEvent cancelEvent = MotionEvent.obtainNoHistory(event);
cancelEvent.setAction(
MotionEvent.ACTION_CANCEL
| (event.getActionIndex() << MotionEvent.ACTION_POINTER_INDEX_SHIFT));
view.onTouchEvent(cancelEvent);
cancelEvent.recycle();
}
if (swiping) {
translationX = deltaX;
view.setTranslationX(deltaX - swipingSlop);
callback.onSwipe();
return true;
}
break;
}
}
return false;
}
/**
* This function checks to see if we need to handle any sudden jumps in the pointer location that
* could be due to a multi-touch being treated as a move by the firmware or hardware. Once a
* sudden jump is detected, all subsequent move events are discarded until an UP is received.
*
* <p>When a sudden jump is detected, an UP event is simulated at the last position and when the
* sudden moves subside, a DOWN event is simulated for the second key.
*
* @param me the motion event
* @return true if the event was consumed, so that it doesn't continue to be handled by {@link
* LatinKeyboardView}.
*/
private boolean handleSuddenJumping(MotionEvent me) {
if (!mNeedsSuddenJumpingHack) return false;
final int action = me.getAction();
final int x = (int) me.getX();
final int y = (int) me.getY();
boolean result = false;
// Real multi-touch event? Stop looking for sudden jumps
if (me.getPointerCount() > 1) {
mDisableDisambiguation = true;
}
if (mDisableDisambiguation) {
// If UP, reset the multi-touch flag
if (action == MotionEvent.ACTION_UP) mDisableDisambiguation = false;
return false;
}
switch (action) {
case MotionEvent.ACTION_DOWN:
// Reset the "session"
mDroppingEvents = false;
mDisableDisambiguation = false;
break;
case MotionEvent.ACTION_MOVE:
// Is this a big jump?
final int distanceSquare = (mLastX - x) * (mLastX - x) + (mLastY - y) * (mLastY - y);
// Check the distance.
if (distanceSquare > mJumpThresholdSquare) {
// If we're not yet dropping events, start dropping and send an UP event
if (!mDroppingEvents) {
mDroppingEvents = true;
// Send an up event
MotionEvent translated =
MotionEvent.obtain(
me.getEventTime(),
me.getEventTime(),
MotionEvent.ACTION_UP,
mLastX,
mLastY,
me.getMetaState());
mView.processMotionEvent(translated);
translated.recycle();
}
result = true;
} else if (mDroppingEvents) {
// If moves are small and we're already dropping events, continue dropping
result = true;
}
break;
case MotionEvent.ACTION_UP:
if (mDroppingEvents) {
// Send a down event first, as we dropped a bunch of sudden jumps and assume that
// the user is releasing the touch on the second key.
MotionEvent translated =
MotionEvent.obtain(
me.getEventTime(),
me.getEventTime(),
MotionEvent.ACTION_DOWN,
x,
y,
me.getMetaState());
mView.processMotionEvent(translated);
translated.recycle();
mDroppingEvents = false;
// Let the up event get processed as well, result = false
}
break;
}
// Track the previous coordinate
mLastX = x;
mLastY = y;
return result;
}
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if (mViewWidth < 2) {
mViewWidth = mListView.getWidth();
}
switch (motionEvent.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
{
if (mPaused) {
return false;
}
if (mSwiping) {
return true;
}
// TODO: ensure this is a finger, and set a flag
// Find the child view that was touched (perform a hit test)
Rect rect = new Rect();
int childCount = mListView.getChildCount();
int headerCount = mListView.getHeaderViewsCount();
int footerCount = mListView.getFooterViewsCount();
int[] listViewCoords = new int[2];
mListView.getLocationOnScreen(listViewCoords);
int x = (int) motionEvent.getRawX() - listViewCoords[0];
int y = (int) motionEvent.getRawY() - listViewCoords[1];
View child = null;
for (int i = headerCount; i < (childCount - footerCount); i++) {
child = mListView.getChildAt(i);
child.getHitRect(rect);
if (rect.contains(x, y)) {
mDownView = child;
break;
}
}
if (mDownView != null) {
mDownX = motionEvent.getRawX();
mDownY = motionEvent.getRawY();
mDownPosition = mListView.getPositionForView(mDownView);
if (mDownPosition != ListView.INVALID_POSITION
&& mDownPosition < mListView.getAdapter().getCount()) {
if (mListView.getAdapter().getItem(mDownPosition) instanceof Card) {
if (mCallbacks.canDismiss(
mDownPosition, (Card) mListView.getAdapter().getItem(mDownPosition))) {
mVelocityTracker = VelocityTracker.obtain();
mVelocityTracker.addMovement(motionEvent);
} else {
mDownView = null;
}
} else {
mDownView = null;
}
} else {
mDownView = null;
}
}
view.onTouchEvent(motionEvent);
return true;
// return false;
}
case MotionEvent.ACTION_UP:
{
if (mVelocityTracker == null) {
break;
}
float deltaX = motionEvent.getRawX() - mDownX;
mVelocityTracker.addMovement(motionEvent);
mVelocityTracker.computeCurrentVelocity(1000);
float velocityX = mVelocityTracker.getXVelocity();
float absVelocityX = Math.abs(velocityX);
float absVelocityY = Math.abs(mVelocityTracker.getYVelocity());
boolean dismiss = false;
boolean dismissRight = false;
if (Math.abs(deltaX) > mViewWidth / swipeDistanceDivisor && mSwiping) {
dismiss = true;
dismissRight = deltaX > 0;
} else if (mMinFlingVelocity <= absVelocityX
&& absVelocityX <= mMaxFlingVelocity
&& absVelocityY < absVelocityX
&& mSwiping) {
// dismiss only if flinging in the same direction as dragging
dismiss = (velocityX < 0) == (deltaX < 0);
dismissRight = mVelocityTracker.getXVelocity() > 0;
}
if (dismiss && mDownPosition != ListView.INVALID_POSITION) {
// dismiss
dismiss(mDownView, mDownPosition - mListView.getHeaderViewsCount(), dismissRight);
} else {
// cancel
mDownView
.animate()
.translationX(0)
.alpha(1)
.setDuration(mAnimationTime)
.setListener(null);
}
mVelocityTracker.recycle();
mVelocityTracker = null;
mDownX = 0;
mDownY = 0;
mDownView = null;
mDownPosition = ListView.INVALID_POSITION;
if (mSwiping) {
// To prevent onClick event with a fast swipe
mSwiping = false;
return true;
}
mSwiping = false;
break;
}
case MotionEvent.ACTION_CANCEL:
{
if (mVelocityTracker == null) {
break;
}
if (mDownView != null) {
// cancel
mDownView
.animate()
.translationX(0)
.alpha(1)
.setDuration(mAnimationTime)
.setListener(null);
}
mVelocityTracker.recycle();
mVelocityTracker = null;
mDownX = 0;
mDownY = 0;
mDownView = null;
mDownPosition = ListView.INVALID_POSITION;
mSwiping = false;
break;
}
case MotionEvent.ACTION_MOVE:
{
if (mVelocityTracker == null || mPaused) {
break;
}
mVelocityTracker.addMovement(motionEvent);
float deltaX = motionEvent.getRawX() - mDownX;
float deltaY = motionEvent.getRawY() - mDownY;
boolean movementAllowed = isSwipeMovementAllowed(deltaX);
if (Math.abs(deltaX) > mSlop
&& Math.abs(deltaY) < Math.abs(deltaX) / 2
&& movementAllowed) {
mSwiping = true;
mSwipingSlop = (deltaX > 0 ? mSlop : -mSlop);
mListView.requestDisallowInterceptTouchEvent(true);
// Cancel ListView's touch (un-highlighting the item)
MotionEvent cancelEvent = MotionEvent.obtain(motionEvent);
cancelEvent.setAction(
MotionEvent.ACTION_CANCEL
| (motionEvent.getActionIndex() << MotionEvent.ACTION_POINTER_INDEX_SHIFT));
mListView.onTouchEvent(cancelEvent);
view.onTouchEvent(cancelEvent);
cancelEvent.recycle();
}
if (mSwiping) {
mDownView.setTranslationX(deltaX - mSwipingSlop);
mDownView.setAlpha(Math.max(0f, Math.min(1f, 1f - 2f * Math.abs(deltaX) / mViewWidth)));
return true;
}
break;
}
}
return false;
}
/**
* Analyzes the given motion event and if applicable triggers the appropriate callbacks on the
* {@link OnGestureListener} supplied.
*
* @param ev The current motion event.
* @return true if the {@link OnGestureListener} consumed the event, else false.
*/
public boolean onTouchEvent(MotionEvent ev) {
final int action = ev.getAction();
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
}
mVelocityTracker.addMovement(ev);
final boolean pointerUp =
(action & MotionEventCompat.ACTION_MASK) == MotionEventCompat.ACTION_POINTER_UP;
final int skipIndex = pointerUp ? MotionEventCompat.getActionIndex(ev) : -1;
// Determine focal point
float sumX = 0, sumY = 0;
final int count = MotionEventCompat.getPointerCount(ev);
for (int i = 0; i < count; i++) {
if (skipIndex == i) continue;
sumX += MotionEventCompat.getX(ev, i);
sumY += MotionEventCompat.getY(ev, i);
}
final int div = pointerUp ? count - 1 : count;
final float focusX = sumX / div;
final float focusY = sumY / div;
boolean handled = false;
switch (action & MotionEventCompat.ACTION_MASK) {
case MotionEventCompat.ACTION_POINTER_DOWN:
mDownFocusX = mLastFocusX = focusX;
mDownFocusY = mLastFocusY = focusY;
// Cancel long press and taps
cancelTaps();
break;
case MotionEventCompat.ACTION_POINTER_UP:
mDownFocusX = mLastFocusX = focusX;
mDownFocusY = mLastFocusY = focusY;
// Check the dot product of current velocities.
// If the pointer that left was opposing another velocity vector, clear.
mVelocityTracker.computeCurrentVelocity(1000, mMaximumFlingVelocity);
final int upIndex = MotionEventCompat.getActionIndex(ev);
final int id1 = MotionEventCompat.getPointerId(ev, upIndex);
final float x1 = VelocityTrackerCompat.getXVelocity(mVelocityTracker, id1);
final float y1 = VelocityTrackerCompat.getYVelocity(mVelocityTracker, id1);
for (int i = 0; i < count; i++) {
if (i == upIndex) continue;
final int id2 = MotionEventCompat.getPointerId(ev, i);
final float x = x1 * VelocityTrackerCompat.getXVelocity(mVelocityTracker, id2);
final float y = y1 * VelocityTrackerCompat.getYVelocity(mVelocityTracker, id2);
final float dot = x + y;
if (dot < 0) {
mVelocityTracker.clear();
break;
}
}
break;
case MotionEvent.ACTION_DOWN:
if (mDoubleTapListener != null) {
boolean hadTapMessage = mHandler.hasMessages(TAP);
if (hadTapMessage) mHandler.removeMessages(TAP);
if ((mCurrentDownEvent != null)
&& (mPreviousUpEvent != null)
&& hadTapMessage
&& isConsideredDoubleTap(mCurrentDownEvent, mPreviousUpEvent, ev)) {
// This is a second tap
mIsDoubleTapping = true;
// Give a callback with the first tap of the double-tap
handled |= mDoubleTapListener.onDoubleTap(mCurrentDownEvent);
// Give a callback with down event of the double-tap
handled |= mDoubleTapListener.onDoubleTapEvent(ev);
} else {
// This is a first tap
mHandler.sendEmptyMessageDelayed(TAP, DOUBLE_TAP_TIMEOUT);
}
}
mDownFocusX = mLastFocusX = focusX;
mDownFocusY = mLastFocusY = focusY;
if (mCurrentDownEvent != null) {
mCurrentDownEvent.recycle();
}
mCurrentDownEvent = MotionEvent.obtain(ev);
mAlwaysInTapRegion = true;
mAlwaysInBiggerTapRegion = true;
mStillDown = true;
mInLongPress = false;
if (mIsLongpressEnabled) {
mHandler.removeMessages(LONG_PRESS);
mHandler.sendEmptyMessageAtTime(
LONG_PRESS, mCurrentDownEvent.getDownTime() + TAP_TIMEOUT + LONGPRESS_TIMEOUT);
}
mHandler.sendEmptyMessageAtTime(
SHOW_PRESS, mCurrentDownEvent.getDownTime() + TAP_TIMEOUT);
handled |= mListener.onDown(ev);
break;
case MotionEvent.ACTION_MOVE:
if (mInLongPress) {
break;
}
final float scrollX = mLastFocusX - focusX;
final float scrollY = mLastFocusY - focusY;
if (mIsDoubleTapping) {
// Give the move events of the double-tap
handled |= mDoubleTapListener.onDoubleTapEvent(ev);
} else if (mAlwaysInTapRegion) {
final int deltaX = (int) (focusX - mDownFocusX);
final int deltaY = (int) (focusY - mDownFocusY);
int distance = (deltaX * deltaX) + (deltaY * deltaY);
if (distance > mTouchSlopSquare) {
handled = mListener.onScroll(mCurrentDownEvent, ev, scrollX, scrollY);
mLastFocusX = focusX;
mLastFocusY = focusY;
mAlwaysInTapRegion = false;
mHandler.removeMessages(TAP);
mHandler.removeMessages(SHOW_PRESS);
mHandler.removeMessages(LONG_PRESS);
}
if (distance > mTouchSlopSquare) {
mAlwaysInBiggerTapRegion = false;
}
} else if ((Math.abs(scrollX) >= 1) || (Math.abs(scrollY) >= 1)) {
handled = mListener.onScroll(mCurrentDownEvent, ev, scrollX, scrollY);
mLastFocusX = focusX;
mLastFocusY = focusY;
}
break;
case MotionEvent.ACTION_UP:
mStillDown = false;
MotionEvent currentUpEvent = MotionEvent.obtain(ev);
if (mIsDoubleTapping) {
// Finally, give the up event of the double-tap
handled |= mDoubleTapListener.onDoubleTapEvent(ev);
} else if (mInLongPress) {
mHandler.removeMessages(TAP);
mInLongPress = false;
} else if (mAlwaysInTapRegion) {
handled = mListener.onSingleTapUp(ev);
} else {
// A fling must travel the minimum tap distance
final VelocityTracker velocityTracker = mVelocityTracker;
final int pointerId = MotionEventCompat.getPointerId(ev, 0);
velocityTracker.computeCurrentVelocity(1000, mMaximumFlingVelocity);
final float velocityY = VelocityTrackerCompat.getYVelocity(velocityTracker, pointerId);
final float velocityX = VelocityTrackerCompat.getXVelocity(velocityTracker, pointerId);
if ((Math.abs(velocityY) > mMinimumFlingVelocity)
|| (Math.abs(velocityX) > mMinimumFlingVelocity)) {
handled = mListener.onFling(mCurrentDownEvent, ev, velocityX, velocityY);
}
}
if (mPreviousUpEvent != null) {
mPreviousUpEvent.recycle();
}
// Hold the event we obtained above - listeners may have changed the original.
mPreviousUpEvent = currentUpEvent;
if (mVelocityTracker != null) {
// This may have been cleared when we called out to the
// application above.
mVelocityTracker.recycle();
mVelocityTracker = null;
}
mIsDoubleTapping = false;
mHandler.removeMessages(SHOW_PRESS);
mHandler.removeMessages(LONG_PRESS);
break;
case MotionEvent.ACTION_CANCEL:
cancel();
break;
}
return handled;
}
public boolean onTouchEvent(MotionEvent event) {
final int action = event.getAction();
boolean handled = true;
if (!mGestureInProgress) {
switch (action & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_POINTER_DOWN:
{
// We have a new multi-finger gesture
// as orientation can change, query the metrics in touch down
DisplayMetrics metrics = mContext.getResources().getDisplayMetrics();
mRightSlopEdge = metrics.widthPixels - mEdgeSlop;
mBottomSlopEdge = metrics.heightPixels - mEdgeSlop;
// Be paranoid in case we missed an event
reset();
mPrevEvent = MotionEvent.obtain(event);
mTimeDelta = 0;
setContext(event);
// Check if we have a sloppy gesture. If so, delay
// the beginning of the gesture until we're sure that's
// what the user wanted. Sloppy gestures can happen if the
// edge of the user's hand is touching the screen, for example.
final float edgeSlop = mEdgeSlop;
final float rightSlop = mRightSlopEdge;
final float bottomSlop = mBottomSlopEdge;
final float x0 = event.getRawX();
final float y0 = event.getRawY();
final float x1 = getRawX(event, 1);
final float y1 = getRawY(event, 1);
boolean p0sloppy = x0 < edgeSlop || y0 < edgeSlop || x0 > rightSlop || y0 > bottomSlop;
boolean p1sloppy = x1 < edgeSlop || y1 < edgeSlop || x1 > rightSlop || y1 > bottomSlop;
if (p0sloppy && p1sloppy) {
mSloppyGesture = true;
} else if (p0sloppy) {
mSloppyGesture = true;
} else if (p1sloppy) {
mSloppyGesture = true;
} else {
mGestureInProgress = mListener.onScaleBegin(this);
}
}
break;
case MotionEvent.ACTION_MOVE:
if (mSloppyGesture) {
// Log.d(TAG, "scale gesture move mSloppyGesture");
// Initiate sloppy gestures if we've moved outside of the
// slop area.
final float edgeSlop = mEdgeSlop;
final float rightSlop = mRightSlopEdge;
final float bottomSlop = mBottomSlopEdge;
final float x0 = event.getRawX();
final float y0 = event.getRawY();
final float x1 = getRawX(event, 1);
final float y1 = getRawY(event, 1);
boolean p0sloppy = x0 < edgeSlop || y0 < edgeSlop || x0 > rightSlop || y0 > bottomSlop;
boolean p1sloppy = x1 < edgeSlop || y1 < edgeSlop || x1 > rightSlop || y1 > bottomSlop;
if (p0sloppy && p1sloppy) {
} else if (p0sloppy) {
} else if (p1sloppy) {
} else {
mSloppyGesture = false;
mGestureInProgress = mListener.onScaleBegin(this);
}
}
break;
case MotionEvent.ACTION_POINTER_UP:
if (mSloppyGesture) {}
break;
}
} else {
// Transform gesture in progress - attempt to handle it
switch (action & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_POINTER_UP:
// Gesture ended
setContext(event);
if (!mSloppyGesture) {
mListener.onScaleEnd(this);
}
reset();
break;
case MotionEvent.ACTION_CANCEL:
if (!mSloppyGesture) {
mListener.onScaleEnd(this);
}
reset();
break;
case MotionEvent.ACTION_MOVE:
// Log.d(TAG, "scale gesture move");
setContext(event);
mMiddleX = (event.getX(0) + event.getX(1)) / 2;
mMiddleY = (event.getY(0) + event.getY(1)) / 2;
// Only accept the event if our relative pressure is within
// a certain limit - this can help filter shaky data as a
// finger is lifted.
if (mCurrPressure / mPrevPressure > PRESSURE_THRESHOLD) {
final boolean updatePrevious = mListener.onScale(this, mMiddleX, mMiddleY);
if (updatePrevious) {
mPrevEvent.recycle();
mPrevEvent = MotionEvent.obtain(event);
}
}
break;
}
}
return handled;
}
