强制 RecyclerView 重绘其项目 [英] Force RecyclerView to redraw its items

问题描述

有没有办法重绘RecyclerView的所有items?

Is there any way to redraw all items of RecyclerView?

我有一些主题(在 style.xml 中)，更改主题后，我需要重新绘制 RecyclerView.

I have some Themes (in style.xml) and after changing the theme, I need the RecyclerView to be redrawn.

所以我想要一个方法来强制为适配器的每个项目重新调用 onCreateViewHolder.

So I want a method that will force to re-call onCreateViewHolder for each items of the adapter.

我试图:

• 调用 adapter.notifyDataSetChanged 但onCreateViewHolder 未被调用
• 调用 recyclerView.setVisibility(View.GONE) 然后recyclerView.setVisibility(View.VISIBLE)
• 调用recyclerView.invalidate()
• 调用recyclerView.setAdapter(null)，然后调用recyclerView.setAdapter(adapter).
  这适用于 90% 的项目.只有 90% 的项目会获得新样式，但有些项目会具有旧样式

• call adapter.notifyDataSetChanged but onCreateViewHolder is not called
• call recyclerView.setVisibility(View.GONE) and then recyclerView.setVisibility(View.VISIBLE)
• call recyclerView.invalidate()
• call recyclerView.setAdapter(null) and then recyclerView.setAdapter(adapter).
  This works well for 90% items. Only 90% of items will get the new style, but some items will have the old style

我提到 RecyclerView 附加到一个 Activity，而不是一个 Fragment.

I mention that the RecyclerView is attached to an Activity, not to a Fragment.

推荐答案

我找到了答案！正确的做法是:

I found the answer! The correct way to do this is:

recyclerView.setAdapter(null);
recyclerView.setLayoutManager(null);
recyclerView.setAdapter(myAdapter);
recyclerView.setLayoutManager(myLayoutManager);
myAdapter.notifyDataSetChanged();

之后，所有的项目都得到了新的风格！

After that, all the items are getting the new style!

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