public void onDragOver(DragObject d) {
final DragView dragView = d.dragView;
final int scrollOffset = mScrollView.getScrollY();
final float[] r = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, dragView, null);
r[0] -= getPaddingLeft();
r[1] -= getPaddingTop();
final long downTime = SystemClock.uptimeMillis();
final MotionEvent translatedEv =
MotionEvent.obtain(downTime, downTime, MotionEvent.ACTION_MOVE, d.x, d.y, 0);
if (!mAutoScrollHelper.isEnabled()) {
mAutoScrollHelper.setEnabled(true);
}
final boolean handled = mAutoScrollHelper.onTouch(this, translatedEv);
translatedEv.recycle();
if (handled) {
mReorderAlarm.cancelAlarm();
} else {
mTargetCell =
mContent.findNearestArea((int) r[0], (int) r[1] + scrollOffset, 1, 1, mTargetCell);
if (isLayoutRtl()) {
mTargetCell[0] = mContent.getCountX() - mTargetCell[0] - 1;
}
if (mTargetCell[0] != mPreviousTargetCell[0] || mTargetCell[1] != mPreviousTargetCell[1]) {
mReorderAlarm.cancelAlarm();
mReorderAlarm.setOnAlarmListener(mReorderAlarmListener);
mReorderAlarm.setAlarm(REORDER_DELAY);
mPreviousTargetCell[0] = mTargetCell[0];
mPreviousTargetCell[1] = mTargetCell[1];
}
}
}
public void onDragExit(DragObject d) {
// Exiting folder; stop the auto scroller.
mAutoScrollHelper.setEnabled(false);
// We only close the folder if this is a true drag exit, ie. not because
// a drop has occurred above the folder.
if (!d.dragComplete) {
mOnExitAlarm.setOnAlarmListener(mOnExitAlarmListener);
mOnExitAlarm.setAlarm(ON_EXIT_CLOSE_DELAY);
}
mReorderAlarm.cancelAlarm();
}