本文整理汇总了Java中org.telegram.messenger.support.widget.RecyclerView.getWidth方法的典型用法代码示例。如果您正苦于以下问题:Java RecyclerView.getWidth方法的具体用法?Java RecyclerView.getWidth怎么用?Java RecyclerView.getWidth使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.telegram.messenger.support.widget.RecyclerView
的用法示例。
在下文中一共展示了RecyclerView.getWidth方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: onMoved
import org.telegram.messenger.support.widget.RecyclerView; //导入方法依赖的package包/类
/**
* Called when {@link #onMove(RecyclerView, ViewHolder, ViewHolder)} returns true.
* <p>
* ItemTouchHelper does not create an extra Bitmap or View while dragging, instead, it
* modifies the existing View. Because of this reason, it is important that the View is
* still part of the layout after it is moved. This may not work as intended when swapped
* Views are close to RecyclerView bounds or there are gaps between them (e.g. other Views
* which were not eligible for dropping over).
* <p>
* This method is responsible to give necessary hint to the LayoutManager so that it will
* keep the View in visible area. For example, for LinearLayoutManager, this is as simple
* as calling {@link LinearLayoutManager#scrollToPositionWithOffset(int, int)}.
*
* Default implementation calls {@link RecyclerView#scrollToPosition(int)} if the View's
* new position is likely to be out of bounds.
* <p>
* It is important to ensure the ViewHolder will stay visible as otherwise, it might be
* removed by the LayoutManager if the move causes the View to go out of bounds. In that
* case, drag will end prematurely.
*
* @param recyclerView The RecyclerView controlled by the ItemTouchHelper.
* @param viewHolder The ViewHolder under user's control.
* @param fromPos The previous adapter position of the dragged item (before it was
* moved).
* @param target The ViewHolder on which the currently active item has been dropped.
* @param toPos The new adapter position of the dragged item.
* @param x The updated left value of the dragged View after drag translations
* are applied. This value does not include margins added by
* {@link RecyclerView.ItemDecoration}s.
* @param y The updated top value of the dragged View after drag translations
* are applied. This value does not include margins added by
* {@link RecyclerView.ItemDecoration}s.
*/
public void onMoved(final RecyclerView recyclerView,
final ViewHolder viewHolder, int fromPos, final ViewHolder target, int toPos, int x,
int y) {
final RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
if (layoutManager instanceof ViewDropHandler) {
((ViewDropHandler) layoutManager).prepareForDrop(viewHolder.itemView,
target.itemView, x, y);
return;
}
// if layout manager cannot handle it, do some guesswork
if (layoutManager.canScrollHorizontally()) {
final int minLeft = layoutManager.getDecoratedLeft(target.itemView);
if (minLeft <= recyclerView.getPaddingLeft()) {
recyclerView.scrollToPosition(toPos);
}
final int maxRight = layoutManager.getDecoratedRight(target.itemView);
if (maxRight >= recyclerView.getWidth() - recyclerView.getPaddingRight()) {
recyclerView.scrollToPosition(toPos);
}
}
if (layoutManager.canScrollVertically()) {
final int minTop = layoutManager.getDecoratedTop(target.itemView);
if (minTop <= recyclerView.getPaddingTop()) {
recyclerView.scrollToPosition(toPos);
}
final int maxBottom = layoutManager.getDecoratedBottom(target.itemView);
if (maxBottom >= recyclerView.getHeight() - recyclerView.getPaddingBottom()) {
recyclerView.scrollToPosition(toPos);
}
}
}