android - 当 RecyclerView 正在计算布局或滚动尝试从 recyclerview 中删除项目时无法调用此方法

Question

我正在尝试从 recyclerview 中删除我的项目，但我总是收到错误

java.lang.IllegalStateException: Cannot call this method while RecyclerView is computing a layout or scrolling

我正在使用通知数据集已更改，我可以解决这个问题吗？

public class AdapterIntransit extends RecyclerView.Adapter<AdapterIntransit.ViewHolder> {
    private Context context;
    List<DataIntransit> data;

    public AdapterIntransit(Context context, List<DataIntransit> data) {
        this.context = context;
        this.data = data;
    }

    @Override
    public AdapterIntransit.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.cardintransit, parent, false);
        return new ViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(AdapterIntransit.ViewHolder holder, int position) {
        if (data.get(position).getJml1() - data.get(position).getJml2() <= 0) {
            data.remove(position);
            notifyItemRemoved(position);
            notifyItemRangeChanged(position, getItemCount());
            notifyDataSetChanged();
        } else {
            holder.kode.setText(data.get(position).getKode());
            holder.nama.setText(data.get(position).getNama());
            holder.jumlah.setText(String.valueOf(data.get(position).getJml1() - data.get(position).getJml2()));
        }
    }

    @Override
    public int getItemCount() {
        return data.size();
    }
    public class ViewHolder extends RecyclerView.ViewHolder{
        TextView kode, nama, jumlah;
        public ViewHolder(View itemView) {
            super(itemView);
            kode = (TextView)itemView.findViewById(R.id.kode);
            nama = (TextView)itemView.findViewById(R.id.nama);
            jumlah = (TextView)itemView.findViewById(R.id.jumlah);

        }
    }
}

Answer 1

以下答案对我有用

这只是问题的workaround。

这通常发生在您在 background thread 上调用 notifyDataSetChanged() 时。所以只需将通知移动到 UI 线程

recyclerView.post(new Runnable()
            {
              @Override
              public void run() {
                myadapter.notifyDataSetChanged();
              }
            });

You use your RecyclerView instance and inside the post method a new Runnable added to the message queue. The runnable will be run on the user interface thread. This is a limit for Android to access the UI thread from background (e.g. inside a method which will be run in a background thread).for more you run it on UI thread if you needed.

如果需要，您可以在 UI 线程上运行它

 runOnUiThread(new Runnable(){
 public void run() {
      // UI code goes here
 }
 });