/**
* Call this when you want to know the new location. If it returns true, the animation is not yet
* finished.
*/
public boolean computeScrollOffset(long time) {
if (isFinished()) {
return false;
}
switch (mMode) {
case SCROLL_MODE:
// Any scroller can be used for time, since they were started
// together in scroll mode. We use X here.
final long elapsedTime = time - mScrollerX.mStartTime;
final int duration = mScrollerX.mDuration;
if (elapsedTime < duration) {
float q = (float) (elapsedTime) / duration;
q = viscousFluid(q);
mScrollerX.updateScroll(q);
mScrollerY.updateScroll(q);
} else {
abortAnimation();
}
break;
case FLING_MODE:
if (!mScrollerX.mFinished) {
if (!mScrollerX.update(time)) {
if (!mScrollerX.continueWhenFinished(time)) {
mScrollerX.finish();
}
}
}
if (!mScrollerY.mFinished) {
if (!mScrollerY.update(time)) {
if (!mScrollerY.continueWhenFinished(time)) {
mScrollerY.finish();
}
}
}
break;
default:
break;
}
return true;
}
/**
* Stops the animation. Contrary to {@link #forceFinished(boolean)}, aborting the animating causes
* the scroller to move to the final x and y positions.
*
* @see #forceFinished(boolean)
*/
public void abortAnimation() {
mScrollerX.finish();
mScrollerY.finish();
}
