Question

以下是片段类调用包含标记

的XML

public class FragmentAbout extends Fragment {

    public FragmentAbout(){}

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        View rootView = inflater.inflate(R.layout.fragment_about, container, false);

        return rootView;
    }
}

以下是 XML 文件，其中包含标记

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".FragmentTripPlan" > 


    <fragment
        android:id="@+id/map"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/btn_draw"
        android:layout_alignParentLeft="true"
        class="com.google.android.gms.maps.SupportMapFragment" />

</RelativeLayout>

这是日志跟踪

01-14 16:32:36.530: E/AndroidRuntime(28486): FATAL EXCEPTION: main
01-14 16:32:36.530: E/AndroidRuntime(28486): android.view.InflateException: Binary XML file line #11: Error inflating class fragment
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:710)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.view.LayoutInflater.rInflate(LayoutInflater.java:752)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.view.LayoutInflater.inflate(LayoutInflater.java:495)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at com.c4a.itravellipaph.FragmentAbout.onCreateView(FragmentAbout.java:19)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.Fragment.performCreateView(Fragment.java:1695)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:903)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1075)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.BackStackRecord.run(BackStackRecord.java:682)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1455)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.FragmentManagerImpl$1.run(FragmentManager.java:441)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.os.Handler.handleCallback(Handler.java:725)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.os.Handler.dispatchMessage(Handler.java:92)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.os.Looper.loop(Looper.java:137)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.ActivityThread.main(ActivityThread.java:5279)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at java.lang.reflect.Method.invokeNative(Native Method)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at java.lang.reflect.Method.invoke(Method.java:511)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at dalvik.system.NativeStart.main(Native Method)
01-14 16:32:36.530: E/AndroidRuntime(28486): Caused by: java.lang.ClassCastException: com.google.android.gms.maps.SupportMapFragment cannot be cast to android.app.Fragment
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.Fragment.instantiate(Fragment.java:585)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.Fragment.instantiate(Fragment.java:560)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.app.Activity.onCreateView(Activity.java:4864)
01-14 16:32:36.530: E/AndroidRuntime(28486):    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:686)
01-14 16:32:36.530: E/AndroidRuntime(28486):    ... 19 more

我该如何解决这个问题？非常感谢提前！ XML中的片段标记无法在片段类中工作

Answer 1

你需要

 import android.support.v4.app.Fragment;

您的活动必须延长FragmentActivity。 FragmentAbout是在活动xml即FrameLayout

中添加到容器中的片段

此外，您应该使用MapView。您可以找到类似的示例@

Android - android.view.InflateException: Binary XML file line #8: Error inflating class fragment

XML中的片段标记不在片段类中工作

1 个答案: