Question

我想在我的Android应用程序中获取片段视图上的地图。尝试打开此视图时，应用程序崩溃了。到目前为止，我确实设法使用相同的视图处理活动，但我需要将其放在片段中。

这是片段类：

public class NearMapFragment extends Fragment {

    private GoogleMap theMap;
    @SuppressWarnings("unused")
    private int shopIcon;
    private Marker vitalis;
    private Marker siege;
    private ImageButton close;

    public NearMapFragment(){}

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

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

        // Check status of Google Play Services
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getActivity());

        // Check Google Play Service Available
        try {
            if (status != ConnectionResult.SUCCESS) {
            }
        } catch (Exception e) {
            Log.e("Error: GooglePlayServiceUtil: ", "" + e);
        }




                shopIcon = R.drawable.icoadresse;

                if(theMap==null){
                    //map not instantiated yet
                }
                theMap = ((MapFragment)getFragmentManager().findFragmentById(R.id.the_map)).getMap();
                if(theMap != null){
                    //ok - proceed
                }
                theMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
                updatePlaces();
                return rootView;
    }       


    private void updatePlaces(){

        double lat = 46.581256;
        double lon = 0.379868;
        String name = "Position 1";
        String address = "Poitiers";
        LatLng POS1 = new LatLng(lat, lon); 
        siege = theMap.addMarker(new MarkerOptions()
        .position(VITALIS_SIEGE)
        .title(name)
        .icon(BitmapDescriptorFactory.fromResource(shopIcon))
        .snippet(address));

        double lat2 = 46.580862;
        double lon2 = 0.341258;
        String name2 = "Position 2";
        String address2 = "Poitiers";
        LatLng POS2 = new LatLng(lat2, lon2); 
        vitalis = theMap.addMarker(new MarkerOptions()
        .position(POS2)
        .title(name2)
        .icon(BitmapDescriptorFactory.fromResource(shopIcon))
        .snippet(address2));

    theMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(46.574826, 0.352488), 13.0f), 400, null); 
    }


}

日志：

02-24 09:19:41.596: E/AndroidRuntime(4959): android.view.InflateException: Binary XML file line #2: Error inflating class fragment
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:713)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.view.LayoutInflater.parseInclude(LayoutInflater.java:816)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.view.LayoutInflater.rInflate(LayoutInflater.java:745)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at com.begital.vitalis.NearMapFragment.onCreateView(NearMapFragment.java:36)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.app.Fragment.performCreateView(Fragment.java:1700)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:890)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1062)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.app.BackStackRecord.run(BackStackRecord.java:684)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1447)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.app.FragmentManagerImpl$1.run(FragmentManager.java:443)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.os.Handler.handleCallback(Handler.java:733)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.os.Handler.dispatchMessage(Handler.java:95)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.os.Looper.loop(Looper.java:137)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.app.ActivityThread.main(ActivityThread.java:4998)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at java.lang.reflect.Method.invokeNative(Native Method)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at java.lang.reflect.Method.invoke(Method.java:515)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at dalvik.system.NativeStart.main(Native Method)
02-24 09:19:41.596: E/AndroidRuntime(4959): Caused by: java.lang.ClassCastException: com.google.android.gms.maps.MapFragment cannot be cast to android.support.v4.app.Fragment
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.support.v4.app.Fragment.instantiate(Fragment.java:402)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.support.v4.app.Fragment.instantiate(Fragment.java:377)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:277)
02-24 09:19:41.596: E/AndroidRuntime(4959):     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)

Answer 1

更改此

  theMap = ((MapFragment)getFragmentManager().findFragmentById(R.id.the_map)).getMap();

到

 theMap  = ((SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.the_map)).getMap();

同样在xml中改变

 android:name="com.google.android.gms.maps.MapFragment"

到

    class="com.google.android.gms.maps.SupportMapFragment"

并使用

扩展您的课程

public class NearMapFragment extends FragmentActivity{
 }

Answer 2

问题就在这一行

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

使用

   container = (ViewGroup) inflater.inflate(R.layout.fragment_near_map, null);

包括Map Fragment在Android中不起作用

2 个答案: