조각 내 ListView 오류가 발생합니다

Question

조각 내 ListView를 표시 할 때 문제가 있습니다. 내 조각에 ListFragment를 사용하고 있습니다. 내 실제 문제가 어디인지 알 수 없었습니다.

CategoriesFragment.java

public class CategoriesFragment extends ListFragment { 
ListView lv; 
TextView tv;  
    public CategoriesFragment() { 
    }  

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
     Bundle savedInstanceState) {   
    if(container==null) 
     return null; 
    inflater.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    View view = inflater.inflate(R.layout.categories_fragment,container,false); 
    View listView = (ListView)view.findViewById(R.id.listview1); 
    return view;   
    }  

    @Override 
    public void onActivityCreated(Bundle savedInstanceState) {  
    super.onActivityCreated(savedInstanceState); 
    final String[] fruits = new String[] { "Apple", "Avocado", "Banana", 
     "Blueberry", "Coconut", "Durian", "Guava", "Kiwifruit"};    
    setListAdapter(new ArrayAdapter<String> 
     (getActivity(),R.layout.categories_fragment,fruits));  
    } 
} 

PagerAdaper.java

public class SectionsPagerAdapter extends FragmentPagerAdapter { 
    public SectionsPagerAdapter(FragmentManager fm) { 
    super(fm); 
    } 

    @Override 
    public Fragment getItem(int i) { 
    switch(i) { 
    case 0: 
     Fragment fragment = new CategoriesFragment(); 
     return fragment; 
     break; 
    case 1: 
     Fragment fragment = new FeaturedFragment(); 
     return fragment; 
     break 
    } 
    return null; 
    } 

    @Override 
    public int getCount() { 
    return 2; 
    } 

    @Override 
    public CharSequence getPageTitle(int position) { 
    switch (position) { 
     case 0: return "CATEGORIES"; 
     case 1: return "FEATURED"; 
    } 
    return null; 
    } 
} 

categories_fragment.xml

<?xml version="1.0" encoding="utf-8"?> 

<ListView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/listview1" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"/> 

DDMS 오류 텍스트 :

09-06 12:37:47.402: E/AndroidRuntime(2611): FATAL EXCEPTION: main 
09-06 12:37:47.402: E/AndroidRuntime(2611): java.lang.RuntimeException: Your content  must have a ListView whose id attribute is 'android.R.id.list' 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.ListFragment.ensureList(ListFragment.java:344) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.ListFragment.onViewCreated(ListFragment.java:145) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:885) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1083) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:635) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1431) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:431) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.view.ViewPager.populate(ViewPager.java:895) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.view.ViewPager.populate(ViewPager.java:772) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1234) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.view.View.measure(View.java:12723) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1369) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1017) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:555) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.view.View.measure(View.java:12723) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.view.View.measure(View.java:12723) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.widget.LinearLayout.measureVertical(LinearLayout.java:812) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.widget.LinearLayout.onMeasure(LinearLayout.java:553) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.view.View.measure(View.java:12723) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:4698) 
09-06 12:37:47.402: E/AndroidRuntime(2611):  at android.widget.FrameLayout.onMeasure(FrameLayout.java:293) 

Answer 1

변경이

<ListView xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/listview1" 
android:layout_width="match_parent" 
android:layout_height="match_parent"/> 

,

<ListView xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@android:id/list" 
android:layout_width="match_parent" 
android:layout_height="match_parent"/> 

문제는 ID와 함께입니다. 이 같은 ID 뭔가가 있어야합니다 ListFragment 당신의 ListView,

Answer 2

대신 android:id="@+id/listview1"@android:id/list 사용하기 때문에 android:id="android:id/list"

을 확장 할 때

Answer 3

ListFragment has a default layout that consists of a single list view. However, if you desire, you can customize the fragment layout by returning your own view hierarchy from onCreateView(LayoutInflater, ViewGroup, Bundle). To do this, your view hierarchy must contain a ListView object with the id "@android:id/list" (or list if it's in code) 당신은 이미 ListFragment를 서브 클래 싱이 이미 ListView 개체를 개최했다. 보기 계층 구조는 @+id/listview1 대신 인 ListView 객체를 포함해야합니다.