UAMP MediaBrowser方向

Question

我正在尝试uamp示例,每当方向更改MediaBrowserFragment recyclelerview状态丢失时(不保持其滚动位置).

我的问题是如何在uamp样本中保持滚动位置.

我知道我可以保存滚动位置并在以后恢复,但由于recyclerView本身保持滚动状态,我不想要那些黑客攻击.

我尝试推动这个简单的片段而不是MediaBrowserFragment并保持其滚动

public class TestFragment extends Fragment {

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View mRootView = inflater.inflate(R.layout.fragment_test, container, false);
        RecyclerView recyclerView = (RecyclerView) mRootView.findViewById(R.id.recyclerView);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        recyclerView.setAdapter(new RecAdapter());
        return mRootView;
    }


    private class RecAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

        @NonNull
        @Override
        public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
            View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_text, null);
            return new ItemViewHolder(itemView);
        }

        @Override
        public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
            ((ItemViewHolder) holder).title.setText(""+ position);
        }

        @Override
        public int getItemCount() {
            return 200;
        }
    }

    private class ItemViewHolder extends RecyclerView.ViewHolder {
        TextView title;

        ItemViewHolder(View itemLayoutView) {
            super(itemLayoutView);
            title = (TextView) itemLayoutView.findViewById(R.id.title);
        }
    }
}

更新

我用uamp提出了这个问题

https://github.com/googlesamples/android-UniversalMusicPlayer/issues/217

Answer 1

您只需在清单文件中添加 configChanges 即可，如下所示：

 <activity android:name=".YourActivity"
           android:configChanges="orientation|screenSize"/>