/**
* Scroll to child.
*
* @param i the i
*/
void scrollToChild(int i) {
CarouselItemView view = (CarouselItemView) getAdapter().getView(i, null, null);
float angle = view.getCurrentAngle();
if (angle == 0) return;
if (angle > 180.0f) angle = 360.0f - angle;
else angle = -angle;
mFlingRunnable.startUsingDistance(angle);
}
/** Brings an item with nearest to 0 degrees angle to this angle and sets it selected. */
private void scrollIntoSlots() {
// Nothing to do
if (getChildCount() == 0 || mSelectedChild == null) return;
// get nearest item to the 0 degrees angle
// Sort itmes and get nearest angle
float angle;
int position;
ArrayList<CarouselItemView> arr = new ArrayList<CarouselItemView>();
for (int i = 0; i < getAdapter().getCount(); i++)
arr.add(((CarouselItemView) getAdapter().getView(i, null, null)));
Collections.sort(
arr,
new Comparator<CarouselItemView>() {
public int compare(CarouselItemView c1, CarouselItemView c2) {
int a1 = (int) c1.getCurrentAngle();
if (a1 > 180) a1 = 360 - a1;
int a2 = (int) c2.getCurrentAngle();
if (a2 > 180) a2 = 360 - a2;
return (a1 - a2);
}
});
angle = arr.get(0).getCurrentAngle();
// Make it minimum to rotate
if (angle > 180.0f) angle = -(360.0f - angle);
// Start rotation if needed
if (angle != 0.0f) {
mFlingRunnable.startUsingDistance(-angle);
} else {
// Set selected position
position = arr.get(0).getIndex();
setSelectedPositionInt(position);
onFinishedMovement();
}
}