本文整理匯總了Java中org.telegram.messenger.support.widget.RecyclerView.SCROLL_STATE_DRAGGING屬性的典型用法代碼示例。如果您正苦於以下問題：Java RecyclerView.SCROLL_STATE_DRAGGING屬性的具體用法？Java RecyclerView.SCROLL_STATE_DRAGGING怎麽用？Java RecyclerView.SCROLL_STATE_DRAGGING使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類org.telegram.messenger.support.widget.RecyclerView的用法示例。
在下文中一共展示了RecyclerView.SCROLL_STATE_DRAGGING屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: checkSelectForSwipe
/**
* Checks whether we should select a View for swiping.
*/
private boolean checkSelectForSwipe(int action, MotionEvent motionEvent, int pointerIndex) {
if (mSelected != null || action != MotionEvent.ACTION_MOVE
|| mActionState == ACTION_STATE_DRAG || !mCallback.isItemViewSwipeEnabled()) {
return false;
}
if (mRecyclerView.getScrollState() == RecyclerView.SCROLL_STATE_DRAGGING) {
return false;
}
final ViewHolder vh = findSwipedView(motionEvent);
if (vh == null) {
return false;
}
final int movementFlags = mCallback.getAbsoluteMovementFlags(mRecyclerView, vh);
final int swipeFlags = (movementFlags & ACTION_MODE_SWIPE_MASK)
>> (DIRECTION_FLAG_COUNT * ACTION_STATE_SWIPE);
if (swipeFlags == 0) {
return false;
}
// mDx and mDy are only set in allowed directions. We use custom x/y here instead of
// updateDxDy to avoid swiping if user moves more in the other direction
final float x = MotionEventCompat.getX(motionEvent, pointerIndex);
final float y = MotionEventCompat.getY(motionEvent, pointerIndex);
// Calculate the distance moved
final float dx = x - mInitialTouchX;
final float dy = y - mInitialTouchY;
// swipe target is chose w/o applying flags so it does not really check if swiping in that
// direction is allowed. This why here, we use mDx mDy to check slope value again.
final float absDx = Math.abs(dx);
final float absDy = Math.abs(dy);
if (absDx < mSlop && absDy < mSlop) {
return false;
}
if (absDx > absDy) {
if (dx < 0 && (swipeFlags & LEFT) == 0) {
return false;
}
if (dx > 0 && (swipeFlags & RIGHT) == 0) {
return false;
}
} else {
if (dy < 0 && (swipeFlags & UP) == 0) {
return false;
}
if (dy > 0 && (swipeFlags & DOWN) == 0) {
return false;
}
}
mDx = mDy = 0f;
mActivePointerId = MotionEventCompat.getPointerId(motionEvent, 0);
select(vh, ACTION_STATE_SWIPE);
return true;
}