Android - Spinner不显示内部类的字符串值，但显示内部类的名称

// 定义内部类
public class MyOption {
    private String value;

    public MyOption(String value) {
        this.value = value;
    }

    public String getValue() {
        return value;
    }
}

// 创建内部类列表
List<MyOption> options = new ArrayList<>();
options.add(new MyOption("Option 1"));
options.add(new MyOption("Option 2"));
options.add(new MyOption("Option 3"));

// 创建自定义适配器
ArrayAdapter<MyOption> adapter = new ArrayAdapter<MyOption>(this, android.R.layout.simple_spinner_item, options) {
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        TextView textView = (TextView) super.getView(position, convertView, parent);
        textView.setText(options.get(position).getValue());
        return textView;
    }

    @Override
    public View getDropDownView(int position, View convertView, ViewGroup parent) {
        TextView textView = (TextView) super.getDropDownView(position, convertView, parent);
        textView.setText(options.get(position).getValue());
        return textView;
    }
};

// 设置适配器
Spinner spinner = findViewById(R.id.spinner);
spinner.setAdapter(adapter);