扩展 BaseAdapter 中的警报对话框 class

Make alert dialog in BaseAdapter extended class

我有一个 MyListAdapter Java class,如下所示:

class MyListAdapter extends BaseAdapter implements TextToSpeech.OnInitListener{

现在我想对每个列表项进行确认对话,如下所示:

btnDelete.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {




            AlertDialog.Builder alert = new AlertDialog.Builder(this);
            alert.setTitle("Delete");
            alert.setMessage("Are you sure?");
            alert.setPositiveButton(android.R.string.yes,
            new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                            // continue with delete
                new DatabaseHelper(context).deleteEmployee(employees.get(position));
                employees.remove(position);
                notifyDataSetChanged();
                        }
                    });

但是在

AlertDialog.Builder alert = new AlertDialog.Builder(this);

我有一个错误说:

builder (android.content.Context)    in Builder cannot be applied to (anonymous android.view.View.OnClickListner)

当我的 class 从 AppCompatActivity

扩展时我没有任何问题

问题是您试图将 this 作为上下文传递,但它指向您的 View.OnClickListener

替换:

AlertDialog.Builder alert = new AlertDialog.Builder(this);

与:

AlertDialog.Builder alert = new AlertDialog.Builder(view.getContext());