RecyclerView ItemTouchHelper如何锁定滑动项目？

Question

我使用带有ItemTouchHelper的RecyclerView进行滑动删除,并在滑动项下添加删除按钮,如下所示:

但是当我完成滑动时,该项目很快就会从列表中删除!如何锁定刷过的项目,并通过单击删除按钮删除？就像Gmail的行为一样.

PS.我在此处发布了相同的问题 https://code.google.com/p/android/issues/detail?can=2&start=0&num=100&q=&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars&groupby=&sort=&id=189057

Answer 1

@Override
public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
    float translationX;
    if(dX > 0){
      translationX = Math.min(-dX, viewHolder.itemView.getWidth() / 2);
    }
    else {
       translationX = Math.max(dX, (-1)* viewHolder.itemView.getWidth() / 2);
    }
    super.onChildDraw(c, recyclerView, viewHolder, translationX, dY, actionState, isCurrentlyActive);
}

Answer 2

在你的SimpleCallback

设置OnClickListeners然后getMovementFlags()：

public void onChildDraw(Canvas c, RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
    if (dX > ARCHIVE_LAYOUT_WIDTH) {
        getDefaultUIUtil().onDraw(c, recyclerView, ((YOUR_VIEW_HOLDER) viewHolder).getSwipableView(), dX, dY, actionState, isCurrentlyActive);
    }
}

这不是最干净的解决方案，但它会让你更接近。