在android的类中添加对话框片段的线性布局中的文本视图

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="这是文本视图的内容" />

</LinearLayout>

public class MyDialogFragment extends DialogFragment {

    @NonNull
    @Override
    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
        LayoutInflater inflater = requireActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.dialog_layout, null);
        TextView textView = view.findViewById(R.id.textView);
        // 设置文本视图的内容
        textView.setText("这是文本视图的内容");

        AlertDialog.Builder builder = new AlertDialog.Builder(requireContext());
        builder.setView(view);
        // 添加其他对话框设置和按钮等

        return builder.create();
    }
}