Question

任何人都有问题，在更改方向后，RecyclerView不会保存滚动位置？

mMyAdapter = new MyAdapter(context, MyAdapter.generateKey(this), savedInstanceState);
mMyAdapter.setHasStableIds(true);

mLayoutManager = new LinearLayoutManager(context, VERTICAL, false);
int padding = ResourceUtils.dp2px(context, 8);
mRecycleView.setClipToPadding(false);
mRecycleView.setPadding(0, ResourceUtils.getPixelSize(R.dimen.toolbar_height), 0, padding);
mRecycleView.setOverScrollMode(View.OVER_SCROLL_ALWAYS);
mRecycleView.setLayoutManager(mLayoutManager);
mRecycleView.setAdapter(MyAdapter);
mRecycleView.setHasFixedSize(false);
mRecycleView.setOnScrollListener(mScrollManager); // only to hide Toolbar on scroll

所以我没有修改onDestroy或OnSaveInstanceState方法，只保存适配器数据，所以当我转动手机时，滚动RecyclerView重置的位置，有些建议？

Answer 1

最近，我为所有RecyclerView改进并创建了 FlexibleAdapter 模式。它能够在旋转后保持状态。

使用非常简单，只需在公共文件中复制2个类+一些xml，以便像ListView一样启用选择（单个/多个）。

请查看说明和完整的工作示例：https://github.com/davideas/FlexibleAdapter

Answer 2

我明白了我的错误，我使用了来自

的RecyclerView

@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    //used this instance of recycler view
    mRecyclerView = inflater.inflate(R.layout.recycle_fragment, container, false);
    return mRecyclerView;
}

但需要

 @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        // instead of searching it after view created
        mRecycleView = ButterKnife.findById(getView(), R.id.recycler_view);
}

问题解决了

RecyclerView保存状态

2 个答案: