尝试调用新的片段页面时活动被销毁- Xamarin.Android

protected override void OnSaveInstanceState(Bundle outState)
{
    // 保存活动状态数据
    outState.PutString("key", "value");
    base.OnSaveInstanceState(outState);
}

protected override void OnRestoreInstanceState(Bundle savedInstanceState)
{
    base.OnRestoreInstanceState(savedInstanceState);
    // 恢复活动状态数据
    string value = savedInstanceState.GetString("key");
}

// 创建一个继承自Fragment的片段类
public class MyFragment : Fragment
{
    public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        // 创建片段视图
        View view = inflater.Inflate(Resource.Layout.fragment_layout, container, false);
        return view;
    }
}

// 在活动中使用片段
protected override void OnCreate(Bundle savedInstanceState)
{
    base.OnCreate(savedInstanceState);
    SetContentView(Resource.Layout.activity_layout);

    // 创建片段实例
    MyFragment fragment = new MyFragment();

    // 使用FragmentTransaction添加片段到活动中
    FragmentTransaction transaction = FragmentManager.BeginTransaction();
    transaction.Add(Resource.Id.fragment_container, fragment);
    transaction.Commit();
}