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错误： java.lang.RuntimeException：无法启动活动 ComponentInfo{com.example.todolist/com.example.todolist.ToDoListActivity}：android.view.InflateException：二进制 XML 文件第 6 行：膨胀类片段时出错

我知道以前有人问过这个问题，但我已经搜索过它们并且找不到解决方案。在应用程序启动几秒钟后我收到此错误而没有触摸任何东西，片段不加载然后它崩溃。

我有一个带有两个 Fragment 的 FragmentActivity 类（ListFragment 和 EditText）。我的最小 sdk 支持是 7，所以我正在使用支持库导入。

这是 FragmentActivity 的代码：

public class ToDoListActivity extends FragmentActivity
        implements NewItemFragment.OnNewItemAddedListener{

private ArrayList<String> todoItems;
private ArrayAdapter<String> aa;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_to_do_list);

    FragmentManager fm = getSupportFragmentManager();
    ToDoListFragment toDoListFragment = (ToDoListFragment)
            fm.findFragmentById(R.id.ToDoListFragment);




    aa = new ArrayAdapter<String>(this,
                    android.R.layout.simple_list_item_1,
                        todoItems);

    toDoListFragment.setListAdapter(aa);


}

public void onNewItemAdded(String newItem){
    todoItems.add(newItem);
    aa.notifyDataSetChanged();

}

这是 FragmentActivity 的布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<fragment
    android:id="@+id/NewItemFragment"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:name="com.example.todolist.NewItemFragment"/>

<fragment
    android:id="@+id/ToDoListFragment"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:name="com.example.todolist.ToDoListFragment" />
</LinearLayout>

这是 EditText 片段代码：

public class NewItemFragment extends Fragment {

private OnNewItemAddedListener onNewItemAddedListener;

public interface OnNewItemAddedListener {
    public void onNewItemAdded(String newItem);
}

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

try {
onNewItemAddedListener = (OnNewItemAddedListener)activity;
}catch (ClassCastException e) {
    throw new ClassCastException(activity.toString() +
            "must implement OnNewItemAddedListener");
    }
}

public View OnCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState){

    View view = inflater.inflate(R.layout.new_item_fragment, container
            , false);

    final EditText myEditText = (EditText)view.findViewById(R.id.myEditText);

    myEditText.setOnKeyListener(new View.OnKeyListener() {

        ...
    });
    return view;
}

}

这是 EditText 片段布局： 

<EditText xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myEditText"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="@string/addItemHint"
    android:contentDescription="@string/addItemContentDescription" />

我的 ListFragment 类使用默认布局，所以我只创建了一个带有类声明的 .java 文件（类名与片段活动 XML 中写入的名称相同）

这是 LogCat 的剩余部分：

02-17 17:33:25.135: E/AndroidRuntime(23262):    at      android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1651)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1667)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.app.ActivityThread.access$1500(ActivityThread.java:117)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:935)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.os.Handler.dispatchMessage(Handler.java:99)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.os.Looper.loop(Looper.java:123)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.app.ActivityThread.main(ActivityThread.java:3691)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at java.lang.reflect.Method.invokeNative(Native Method)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at java.lang.reflect.Method.invoke(Method.java:507)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at dalvik.system.NativeStart.main(Native Method)
02-17 17:33:25.135: E/AndroidRuntime(23262): Caused by: android.view.InflateException: Binary XML file line #6: Error inflating class fragment
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:587)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:207)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.app.Activity.setContentView(Activity.java:1663)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at com.example.todolist.ToDoListActivity.onCreate(ToDoListActivity.java:18)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1615)
02-17 17:33:25.135: E/AndroidRuntime(23262):    ... 11 more
02-17 17:33:25.135: E/AndroidRuntime(23262): Caused by: java.lang.IllegalStateException: Fragment com.example.todolist.NewItemFragment did not create a view.
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:303)
02-17 17:33:25.135: E/AndroidRuntime(23262):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563)
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1 回答 1

2

实际错误是Fragment com.example.todolist.NewItemFragment did not create a view.

发生这种情况是因为您有一个名为OnCreateView而不是onCreateView. 该方法应以小写字母开头。如果您将该方法标记为@Override它会显示此错误。

于 2013-02-17T16:23:16.790 回答