我有这样的结构：

MainActivity -> ProfileFragment -> ListFragment

其中“->”是FragmentTransaction.add(....)
我的问题是，如果我自己用实现来重新加载子片段的旧示例（例如，当旋转设备时），我需要android吗？
因为当android重新创建第一个Activity并到达onStart()方法时，Activity本身会重新创建ProfileFragment等等。
我也尝试了一些测试Log和结果如下
第一次创造：

2023-11-02 18:54:59.141 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ProfileFragment instance created from MainActivity
2023-11-02 18:54:59.161 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ProfileFragment: ProfileFragment{4eef489} (7ad3c3ad-8de4-4205-bc33-5e803c9c0f36 id=0x7f090101) onCreateView()
2023-11-02 18:54:59.170 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ListFragment instance created from ProfileFragment
2023-11-02 18:54:59.171 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ListFragment: ListFragment{74e1ea1} (03980350-9ab1-4857-a7f3-d71560f949cf id=0x7f0901bb) onCreateView()

字符串
旋转后：

2023-11-02 18:51:46.127 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ProfileFragment instance created from android
2023-11-02 18:51:46.128 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ListFragment instance created from android
2023-11-02 18:51:46.164 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ProfileFragment instance created from MainActivity
2023-11-02 18:51:46.167 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ProfileFragment: ProfileFragment{9373e8c} (a5b6a134-359d-46bc-a487-270f4e970b41 id=0x7f090101) onCreateView()
2023-11-02 18:51:46.410 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ListFragment: ListFragment{fb9c6ab} (a78556b1-fe09-4b21-b40b-c3fc21fc9728 id=0x7f0901bb) onCreateView()
2023-11-02 18:51:46.416 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ProfileFragment: ProfileFragment{5d59c38} (063fb353-0129-4a4a-9db3-c72578aea443 id=0x7f090101) onCreateView()
2023-11-02 18:51:46.427 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ListFragment instance created from ProfileFragment
2023-11-02 18:51:46.428 16908-16908 Rotation Test           it.uniba.dib.sms222334               D  ListFragment: ListFragment{aad4157} (23af9cd1-15e2-4ddc-aa59-c138b79a5d8e id=0x7f0901bb) onCreateView()

型
为了完整起见，我也把这种情况下的构造函数

ListFragment：

public ListFragment() {
        Log.d("Rotation Test","ListFragment instance created from android");
        currentUser=SessionManager.getInstance().getCurrentUser();

        currentUserRole=currentUser.getRole();
    }

    public ListFragment(String overrideParams){

    }

    public static ListFragment newInstanceProfile(ProfileFragment.Tab tabPosition, ProfileFragment.Type profileType, User profile) {
        ListFragment myFragment = new ListFragment("justForOverrideTheConstructor");
        Bundle args = new Bundle();
        args.putInt("tab_position", tabPosition.tabPosition.ordinal());
        args.putInt("profile_type", profileType.ordinal());
        args.putParcelable("profileData", profile);
        myFragment.setArguments(args);

        Log.d("Rotation Test","ListFragment instance created from ProfileFragment");

        return myFragment;
    }

型

ProfileFragment：

public ProfileFragment(){
        Log.d("Rotation Test","ProfileFragment instance created from android");
    }

    private ProfileFragment(String overrideParams){

    }

    public static ProfileFragment newInstance(User profile) {
        ProfileFragment myFragment = new ProfileFragment("justForOverrideTheConstructor");

        Bundle args = new Bundle();
        args.putParcelable("profileData", profile);
        myFragment.setArguments(args);

        Log.d("Rotation Test","ProfileFragment instance created from MainActivity");

        return myFragment;
    }

型
所以当我旋转设备时，你可以看到，我有两个片段的两个示例，这不是我想要的结果。
我看到一些关于setRetainInstance(true)的解决方案，但它是一个很好的解决方案？我知道它是与非UI片段一起使用的，否则它会产生内存泄漏。