在调用attachToRecyclerView之前,应调用detachFromRecyclerView以从RecyclerView中删除先前的ItemHelper。示例代码如下:
// 先前ItemHelper的引用 ItemTouchHelper previousItemHelper = new ItemTouchHelper(callback); // 从RecyclerView中删除先前的ItemHelper previousItemHelper.detachFromRecyclerView();
// 创建新的ItemHelper ItemTouchHelper newItemHelper = new ItemTouchHelper(callback); // 将新的ItemHelper附加到RecyclerView newItemHelper.attachToRecyclerView(recyclerView);
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