我收到错误
Unable to start activity ComponentInfo{de.androidbuch.activiti/de.androidbuch.activiti.task.Activity}: android.view.InflateException: Binary XML file line #11: Error inflating class fragment
当我切换纵向和横向模式时。我正在使用碎片。我的xml是：
<LinearLayout android:id="@+id/mainLayout"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<ListView android:id="@+id/android:list"
android:layout_height="wrap_content"
android:layout_width="fill_parent"/>
<fragment android:id="@+id/fragmentDetails"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
class="de.androidbuch.activiti.task.TaskDetailsFragment"/>
</LinearLayout>
如果我通过横向和纵向模式切换，一切正常。但是当我单击我的片段（并且我可以看到我的片段）然后切换到其他模式时，我收到错误。知道我该如何解决吗？在这里找到了一些答案，但这些都没有帮助我......
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): FATAL EXCEPTION: main
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): java.lang.RuntimeException: Unable to start activity
ComponentInfo{de.androidbuch.activiti/de.androidbuch.activiti.task.Activity}: android.view.InflateException: Binary XML file line #11: Error inflating class fragment
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1736)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1752)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3097)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.ActivityThread.access$1600(ActivityThread.java:123)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:997)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.os.Handler.dispatchMessage(Handler.java:99)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.os.Looper.loop(Looper.java:126)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.ActivityThread.main(ActivityThread.java:3998)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at java.lang.reflect.Method.invokeNative(Native Method)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at java.lang.reflect.Method.invoke(Method.java:491)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at dalvik.system.NativeStart.main(Native Method)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class fragment
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:688)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.view.LayoutInflater.rInflate(LayoutInflater.java:724)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.view.LayoutInflater.rInflate(LayoutInflater.java:727)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.view.LayoutInflater.inflate(LayoutInflater.java:479)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.view.LayoutInflater.inflate(LayoutInflater.java:391)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.view.LayoutInflater.inflate(LayoutInflater.java:347)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:227)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.Activity.setContentView(Activity.java:1771)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at de.androidbuch.activiti.task.TaskActivity.onCreate(TaskActivity.java:83)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1700)
06-21 14:55:05.600: ERROR/AndroidRuntime(7636): ... 12 more
正如 hdemirchian 所说，请确保使用：
import android.support.v4.app.Fragment;
并且还要确保使用片段的活动扩展FragmentActivity而不是常规的Activity,
import android.support.v4.app.FragmentActivity;
得到FragmentActivity class.
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