java如何在线性布局中添加MapView和其他组件？

2 周，3 日 Questions & Answers 725

我见过很多相关的问题，但我看不出哪里做错了。如果有人能帮助我，我将不胜感激。当我只向LinearLayout添加一个MapView时，map工作正常。但当我试图在布局中添加一个按钮或文本视图或任何内容时，它会在运行时崩溃

我有三个独立的fragments。第一个叫做碎片。java和Fragment_a.xml

下面是Fragment_a.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
安卓:layout_width="match_parent"
 安卓:layout_height="match_parent">
<com.google.安卓.maps.MapView 安卓:id="@+id/mapView"
    安卓:layout_width="fill_parent"
    安卓:layout_height="fill_parent"
    />
<Button 安卓:id="@+id/googlemaps_select_location"
        安卓:layout_width="wrap_content"
        安卓:layout_height="wrap_content"
        安卓:layout_alignParentBottom="true"
        安卓:layout_centerHorizontal="true"
        安卓:text="Select"/>
</RelativeLayout>

这是

FragmentA.java

我不确定

        View v = inflater.inflate(R.layout.fragment_a, container, false);

这是正确的。片段a，正如我所说，是包含完整视图的片段的名称：

    public class FragmentA  extends Fragment {

            MapView mapView;
            GoogleMap map;

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

                // Gets the MapView from the XML layout and creates it
                mapView = (MapView) v.findViewById(R.id.mapView);
                mapView.onCreate(savedInstanceState);

                // Gets to GoogleMap from the MapView and does initialization stuff
                map = mapView.getMap();
                map.getUiSettings().setMyLocationButtonEnabled(false);
                map.setMyLocationEnabled(true);

                MapsInitializer.initialize(this.getActivity());

                // Updates the location and zoom of the MapView
                CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(new LatLng(43.1, -87.9), 10);
                map.animateCamera(cameraUpdate);

                return v;
            }

            @Override
            public void onResume() {
                mapView.onResume();
                super.onResume();
            }

            @Override
            public void onDestroy() {
                super.onDestroy();
                mapView.onDestroy();
            }

            @Override
            public void onLowMemory() {
                super.onLowMemory();
                mapView.onLowMemory();
            }
}

我得到的错误是：inflate exception binary xml file line #10 error inflating class fragment.

09-22 14:43:51.301: E/AndroidRuntime(2164): FATAL EXCEPTION: main
09-22 14:43:51.301: E/AndroidRuntime(2164): Process: com.ass3.journeytracker, PID: 2164
09-22 14:43:51.301: E/AndroidRuntime(2164): 安卓.view.InflateException: Binary XML file line #11: Error inflating class com.google.安卓.maps.MapView
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.LayoutInflater.createViewFromTag(LayoutInflater.java:707)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.LayoutInflater.rInflate(LayoutInflater.java:755)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.LayoutInflater.inflate(LayoutInflater.java:492)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.LayoutInflater.inflate(LayoutInflater.java:397)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at com.ass3.journeytracker.FragmentA.onCreateView(FragmentA.java:33)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.app.Fragment.performCreateView(Fragment.java:1504)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:942)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1121)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1484)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:482)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.view.ViewPager.populate(ViewPager.java:1073)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.view.ViewPager.populate(ViewPager.java:919)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.View.measure(View.java:16497)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.widget.FrameLayout.onMeasure(FrameLayout.java:310)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.View.measure(View.java:16497)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at com.安卓.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.View.measure(View.java:16497)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.widget.FrameLayout.onMeasure(FrameLayout.java:310)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at com.安卓.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.View.measure(View.java:16497)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.Choreographer.doCallbacks(Choreographer.java:574)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.Choreographer.doFrame(Choreographer.java:544)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.os.Handler.handleCallback(Handler.java:733)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.os.Handler.dispatchMessage(Handler.java:95)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.os.Looper.loop(Looper.java:136)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.app.ActivityThread.main(ActivityThread.java:5017)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at java.lang.reflect.Method.invokeNative(Native Method)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at java.lang.reflect.Method.invoke(Method.java:515)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at com.安卓.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:595)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at dalvik.system.NativeStart.main(Native Method)
09-22 14:43:51.301: E/AndroidRuntime(2164): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.安卓.maps.MapView" on path: DexPathList[[zip file "/data/app/com.ass3.journeytracker-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.ass3.journeytracker-2, /vendor/lib, /system/lib]]
09-22 14:43:51.301: E/AndroidRuntime(2164):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.LayoutInflater.createView(LayoutInflater.java:559)
09-22 14:43:51.301: E/AndroidRuntime(2164):     at 安卓.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
09-22 14:43:51.301: E/AndroidRuntime(2164):     ... 43 more

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java如何在线性布局中添加MapView和其他组件？

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