@Override
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabled() || getViewAdapter() == null) {
return true;
}
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE:
if (getParent() != null) {
getParent().requestDisallowInterceptTouchEvent(true);
}
break;
case MotionEvent.ACTION_UP:
if (!mIsScrollingPerformed) {
int distance = (int) getMotionEventPosition(event) - getBaseDimension() / 2;
if (distance > 0) {
distance += getItemDimension() / 2;
} else {
distance -= getItemDimension() / 2;
}
int items = distance / getItemDimension();
if (items != 0 && isValidItemIndex(mCurrentItemIdx + items)) {
notifyClickListenersAboutClick(mCurrentItemIdx + items);
}
}
break;
}
return mScroller.onTouchEvent(event);
}
/**
* Set the the specified scrolling interpolator
*
* @param interpolator the interpolator
*/
public void setInterpolator(Interpolator interpolator) {
mScroller.setInterpolator(interpolator);
}
/**
* Scroll the spinnerwheel
*
* @param itemsToScroll items to scroll
* @param time scrolling duration
*/
public void scroll(int itemsToScroll, int time) {
int distance = itemsToScroll * getItemDimension() - mScrollingOffset;
onScrollTouched(); // we have to emulate touch when scrolling spinnerwheel programmatically to
// light up stuff
mScroller.scroll(distance, time);
}
/** Stops scrolling */
public void stopScrolling() {
mScroller.stopScrolling();
}