在活动之上设置新片段不适用onConfiguration更改

Question

我有应用程序的活动和嵌套Fragment里面。

添加嵌套Fragment工作正常，当我被关的活动方向为纵向。
后来我想处理一些事情onConfiguration改变，所以我从清单中删除屏幕方向，并以编程方式锁定了活动，我overrided onConfiguration在我的活动变化。

但在这种情况下，我尝试在活动的顶部设置Fragment。

其onCreateView的调用，但它不会出现在屏幕上。

我检查了这里描述的解决方案，但它没有奏效。 link

这是我的代码替换片段

protected void setFragment(Fragment fragment) { 

    FragmentManager fragmentManager = getSupportFragmentManager(); 

    FragmentTransaction fragmentTransaction; 
    fragmentTransaction = 
      fragmentManager.beginTransaction(); 

    fragmentTransaction.isAddToBackStackAllowed(); 

    fragmentTransaction.replace(R.id.container, fragment); 
    // fragmentTransaction.addToBackStack("frag1"); 

    fragmentTransaction.commit(); 
} 

protected void addFragment(Fragment fragment) { 
    FragmentManager fragmentManager = getSupportFragmentManager(); 
    FragmentTransaction fragmentTransaction = 
      fragmentManager.beginTransaction(); 
    fragmentTransaction.setCustomAnimations(R.anim.right_in, R.anim.defff, R.anim.defff, R.anim.right_out); 
    fragmentTransaction.isAddToBackStackAllowed(); 
    fragmentTransaction.add(R.id.container, fragment); 
    fragmentTransaction.addToBackStack("frag2"); 
    fragmentTransaction.commit(); 
} 

和onConfiguration变化

@Override 
public void onConfigurationChanged(Configuration newConfig) { 
    super.onConfigurationChanged(newConfig); 

    RTA.setLocale(getApplicationContext(), RTA.getSharePrefrenceLocale(getApplicationContext())); 
    //System.out.println("device rotated");getWindowManager().getDefaultDisplay().getRotation(); 


    if (getWindowManager().getDefaultDisplay().getRotation() == Surface.ROTATION_270) { 
     setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 

     Intent Madinti = new Intent(this, Madinati.class); 
     Madinti.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
     Madinti.putExtra("side", 1); 


     getApplicationContext().startActivity(Madinti); 
    } else if (getWindowManager().getDefaultDisplay().getRotation() == Surface.ROTATION_90) { 
     setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 

     Intent Madinti = new Intent(this, Madinati.class); 
     Madinti.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
     Madinti.putExtra("side", 0); 


     getApplicationContext().startActivity(Madinti); 
    } else { 

     setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED); 

    } 
} 

，并在清单

<activity 
     android:name=".Parking.click_add" 
     android:configChanges="orientation|keyboardHidden|screenSize|locale" 
     android:label="@string/title_activity_click_add" 
     /> 

活动，这里是的onCreate和onAttach第二次添加片段

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setRetainInstance(true); 
} 

@Override 
public void onAttach(Activity activity) { 
    super.onAttach(activity); 

    if (mRetainedChildFragmentManager != null) { 
     //restore the last retained child fragment manager to the new 
     //created fragment 
     try { 
      Field childFMField = Fragment.class.getDeclaredField("mChildFragmentManager"); 
      childFMField.setAccessible(true); 
      childFMField.set(this, mRetainedChildFragmentManager); 
     } catch (NoSuchFieldException e) { 
      e.printStackTrace(); 
     } catch (IllegalAccessException e) { 
      e.printStackTrace(); 
     } 
    } else { 
     mRetainedChildFragmentManager = getChildFragmentManager(); 
    } 
} 

任何帮助，感谢

Answer 1

呼叫setRetainInstance（真）;在片段中的OnActivityCreated回调中。