使用 onCreateView 在 DialogFragment 中实现 RadioButton

Question

我一直在尝试在 DialogFragment 中实现 RadioButton 功能，其中值通过按钮单击存储/显示。

这是我目前汇编的代码。谁能帮我解决我做错了什么以及我应该做什么？谢谢。

    public class AddDialogFragment extends DialogFragment {

    public static RadioGroup addRadioGroup;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.add_layout, container);

        Button dialogAddButton = (Button) view.findViewById(R.id.dialog_add_button);
        dialogAddButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                EditText addInput = (EditText) view.findViewById(R.id.add_input);
                int selected_id = addRadioGroup.getCheckedRadioButtonId();
                RadioButton addRadioButton = (RadioButton) view.findViewById(selected_id);
                Toast.makeText(this, addRadioButton.getText().toString(), Toast.LENGTH_SHORT).show();
            }
        });
        this.getDialog().setTitle("Set Title");

        return view;
    }
}

Answer 1

你错过了RadioGroup addRadioGroup = (RadioGroup) view.findViewById(R.id.YOUR_RADIO_BUTTON_ID);

public class AddDialogFragment extends DialogFragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.add_layout, container);

        Button dialogAddButton = (Button) view.findViewById(R.id.dialog_add_button);
        RadioGroup addRadioGroup = (RadioGroup) view.findViewById(R.id.YOUR_RADIO_BUTTON_ID);
        dialogAddButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                EditText addInput = (EditText) view.findViewById(R.id.add_input);
                int selected_id = addRadioGroup.getCheckedRadioButtonId();
                RadioButton addRadioButton = (RadioButton) view.findViewById(selected_id);
                Toast.makeText(this, addRadioButton.getText().toString(), Toast.LENGTH_SHORT).show();
            }
        });
        this.getDialog().setTitle("Set Title");

        return view;
    }
}