的Android - 嵌套片段沒有查看找到

Question

我有三個片段和它們佈置，如下所示：

「分片A和分片C不相連，但分片B和C是在每個片段包含1名列表視圖如此。每次我觸發一個事件時，它都會轉到下一個片段。「

片段A --->（內部破片A）片段B --->（內部破片B）片段C

• 片段A（main.xml中）
• 片段B （R.id.contentFragment）
• 片段C（R.id.contentFragment）

我可以顯示Fragmen t A和片段B並且沒問題，但是如果我從B調用片段C，那麼我得到了"No view found in contentFragment=0x7f040039"。

main.xml中

<?xml version="1.0" encoding="utf-8"?> 
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
       android:layout_width="fill_parent" 
       android:layout_height="fill_parent" 
       android:orientation="vertical" 
       android:background="@color/white" 
       android:id="@+id/frameLayout"  
       > 

      <ListView 
      android:id="@android:id/list" 
      android:layout_width="fill_parent" 
      android:layout_alignParentTop="true" 
      android:layout_alignParentBottom="true" 
      android:layout_height="wrap_content" 
      > 
      </ListView> 

    <FrameLayout 
    android:id="@+id/contentFragment" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:layout_weight="1" > 
    </FrameLayout> 


    </FrameLayout> 

</FrameLayout> 

FragmentA.java

內部片段A打開片段B

Fragment fragment1 = new FragmentB(); 

     FragmentTransaction transaction = getChildFragmentManager().beginTransaction(); 
     transaction.replace(R.id.contentFragment, fragment1, fragMainGroups); 
     transaction.addToBackStack(fragMainGroups); 
     transaction.commit(); 

FragmentB.java

內部片段B打開片段C

 String fragGroups = "groups"; 

    Fragment fragment1 = new FragmentC(); 

    FragmentTransaction transaction = getChildFragmentManager().beginTransaction(); 
    transaction.replace(R.id.contentFragment, fragment1, fragGroups); 
    transaction.addToBackStack(fragGroups); 
    transaction.commit(); 

FragmentC.java

內部片段C

public class FragmentItems extends ListFragment{ 

    public void onAttach(Activity activity) { 
     super.onAttach(activity); 
    } 
      public void onActivityCreated(Bundle savedInstanceState) { 
       super.onActivityCreated(savedInstanceState); 
      } 

      public void onCreate(Bundle e) 
      { 
       super.onCreate(e); 
      } 

       @Override 
       public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 
        View rootView = inflater.inflate(R.layout.load_items_activity, container, false); 

        return rootView; 
       } 
} 

logcat的

07-25 18:10:20.388: E/FragmentManager(24703): No view found for id 0x7f040039 (com.jinisys.restoplusordering:id/contentFragment) for fragment FragmentItems{4156f480 #0 id=0x7f040039 groups} 
07-25 18:10:20.388: E/FragmentManager(24703): Activity state: 

07-25 18:10:20.388: E/FragmentManager(24703): No view found for id 0x7f040039 (com.jinisys.restoplusordering:id/contentFragment) for fragment FragmentItems{4156f480 #0 id=0x7f040039 groups} 
07-25 18:10:20.388: E/FragmentManager(24703): Activity state: 
07-25 18:10:20.718: E/AndroidRuntime(24703): FATAL EXCEPTION: main 
07-25 18:10:20.718: E/AndroidRuntime(24703): java.lang.IllegalArgumentException: No view found for id 0x7f040039 (com.jinisys.restoplusordering:id/contentFragment) for fragment FragmentItems{4156f480 #0 id=0x7f040039 groups} 
07-25 18:10:20.718: E/AndroidRuntime(24703): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:903) 
07-25 18:10:20.718: E/AndroidRuntime(24703): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088) 
07-25 18:10:20.718: E/AndroidRuntime(24703): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682) 
07-25 18:10:20.718: E/AndroidRuntime(24703): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444) 
07-25 18:10:20.718: E/AndroidRuntime(24703): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:429) 
07-25 18:10:20.718: E/AndroidRuntime(24703): at android.os.Handler.handleCallback(Handler.java:615) 

Answer 1

由於您的錯誤狀態，您正在尋找與片段B內的編號爲contentFragmentTtems的視圖，主視圖是contentFragment而不是整個main.xml。所以如果你想添加新的片段，你也應該從片段A中做它。

Answer 2

<?xml version="1.0" encoding="utf-8"?> 
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
       android:layout_width="fill_parent" 
       android:layout_height="fill_parent" 
       android:orientation="vertical" 
       android:background="@color/white" 
       android:id="@+id/frameLayout"  
       > 

      <ListView 
      android:id="@android:id/list" 
      android:layout_width="fill_parent" 
      android:layout_alignParentTop="true" 
      android:layout_alignParentBottom="true" 
      android:layout_height="wrap_content" 
      > 
      </ListView> 

    <FrameLayout 
    android:id="@+id/contentFragmentb" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:layout_weight="1" > 
    </FrameLayout> 
<FrameLayout 
    android:id="@+id/contentFragmentc" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:layout_weight="1" > 
    </FrameLayout> 

    </FrameLayout> 

</FrameLayout> 

這應該有效。