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Les vues ViewHolder ne doivent pas être attachées lors de leur création

J'essaie de créer un RV simple qui affichera une TextView. Voici mon adaptateur:

public class MyRvAdapter extends RecyclerView.Adapter<MyRvAdapter.ViewHolder> {

private String[] mDataset;


public static class ViewHolder extends RecyclerView.ViewHolder {
    // each data item is just a string in this case
    public TextView mTextView;
    public ViewHolder(TextView v) {
        super(v);
        mTextView = v;
    }
}

public MyRvAdapter(String[] myDataset) {
    mDataset = myDataset;
}

@NonNull
@Override
public MyRvAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.text_row_item, parent, false);
    TextView userNameInList= v.findViewById(R.id.display_name);
    ViewHolder vh = new ViewHolder(userNameInList);
    return vh;
    }

@Override
public void onBindViewHolder(@NonNull MyRvAdapter.ViewHolder holder, int position) {
    holder.mTextView.setText(mDataset[position]);
}

@Override
public int getItemCount() {
    return mDataset.length;
}

}

text_row_item est juste un FrameLayout avec un TextView à l'intérieur ("display_name"). C'est l'eror:

Java.lang.IllegalStateException: ViewHolder views must not be attached when created. Ensure that you are not passing 'true' to the attachToRoot parameter of LayoutInflater.inflate(..., boolean attachToRoot)
    at Android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.Java:6687)
    at Android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.Java:5869)

Merci beaucoup!

androidandroid-recyclerviewandroid-viewholder
16
Nakash.i

Attendez que la vue soit créée avant la liaison.

Supprimez TextView userNameInList= v.findViewById(R.id.display_name); de votre MyRvAdapter.ViewHolder.

Et liez dans ViewHolder comme mTextView = v.findViewById(r.id.display_name);.

1
Gokul Nath KP

Dans mon cas, je l'ai corrigé en changeant cette ligne

val view = parent.inflate(R.layout.your_item)

à

val view = parent.inflate(R.layout.your_item, false)
0
Cabezas

essaye ça

public class MyRvAdapter extends RecyclerView.Adapter<MyRvAdapter.MyViewHolder> {

private Context mContext;
private String[] mDataset;

public class MyViewHolder extends RecyclerView.ViewHolder {
    TextView title;

    MyViewHolder(View view) {
        super(view);
        title = (TextView) view.findViewById(R.id.display_name);
    }
}

public MyRvAdapter(Context mContext, String[] myDataset) {
    this.mContext = mContext;
    this.mDataset = myDataset;
}


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

@Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
    holder.title.setText(mDataset[position]);
}

@Override
public int getItemCount() {
    return mDataset.length;
}
}
0
TejpalBh