public boolean onShove(ShoveGestureDetector detector) {
if (mScaleHandled || mRotationHandled) return false;
mShoveHandled = true;
float currentSpanX = detector.getCurrentSpanX();
float prevSpanX = detector.getPreviousSpanX();
double diffX = Math.abs(currentSpanX - prevSpanX);
mLastDoubleGestureTime = detector.getEventTime();
handleShoveGesture(detector.getShovePixelsDelta() / displayMetrics.heightPixels);
return true;
}
