@Override
protected void handleInProgressEvent(int actionCode, MotionEvent event) {
switch (actionCode) {
case MotionEvent.ACTION_POINTER_UP:
// Gesture ended but
updateStateByEvent(event);
if (!mSloppyGesture) {
mListener.onRotateEnd(this);
}
resetState();
break;
case MotionEvent.ACTION_CANCEL:
if (!mSloppyGesture) {
mListener.onRotateEnd(this);
}
resetState();
break;
case MotionEvent.ACTION_MOVE:
updateStateByEvent(event);
// 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.onRotate(this);
if (updatePrevious) {
mPrevEvent.recycle();
mPrevEvent = MotionEvent.obtain(event);
}
}
break;
}
}
@Override
protected void handleStartProgressEvent(int actionCode, MotionEvent event) {
switch (actionCode) {
case MotionEvent.ACTION_POINTER_DOWN:
// At least the second finger is on screen now
resetState(); // In case we missed an UP/CANCEL event
mPrevEvent = MotionEvent.obtain(event);
mTimeDelta = 0;
updateStateByEvent(event);
// See if we have a sloppy gesture
mSloppyGesture = isSloppyGesture(event);
if (!mSloppyGesture) {
// No, start gesture now
mGestureInProgress = mListener.onRotateBegin(this);
}
break;
case MotionEvent.ACTION_MOVE:
if (!mSloppyGesture) {
break;
}
// See if we still have a sloppy gesture
mSloppyGesture = isSloppyGesture(event);
if (!mSloppyGesture) {
// No, start normal gesture now
mGestureInProgress = mListener.onRotateBegin(this);
}
break;
case MotionEvent.ACTION_POINTER_UP:
if (!mSloppyGesture) {
break;
}
break;
}
}