Google Google map Исключение нулевого указателя при добавлении маркера

Question

Я сделал простую функцию FragmentActivity, отображающую карту google и используя маркеры, чтобы показывать текущую позицию и близлежащие места. Но теперь мне нужно использовать этот код внутри другого приложения, и я получаю эту проблему.

Это активность

private void updatePlaces(JSONArray jDestinationArray) throws JSONException{ 

    locMan = (LocationManager)getSystemService(Context.LOCATION_SERVICE); 
    Location lastLoc = locMan.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); 
    double lat = lastLoc.getLatitude(); 
    double lng = lastLoc.getLongitude(); 
    lastLatLng = new LatLng(lat, lng); 

    Display display = getWindowManager().getDefaultDisplay(); 
    Point size = new Point(); 
    display.getSize(size); 
    int width = size.x; 
    int height = size.y; 

    Builder boundsBuilder = new LatLngBounds.Builder(); 
    boundsBuilder.include(lastLatLng); 

    markers = new HashMap<Marker,Object>(); 
    userMarker = map.addMarker(new MarkerOptions() 
     .position(lastLatLng) 
     .title("You are here") 
     .icon(BitmapDescriptorFactory.fromResource(userIcon)) 
     .snippet("This is your last recorded location")); 


    markers.put(userMarker, lastLatLng); 
    for(int i=0; i<jDestinationArray.length(); i++){ 
     JSONObject destinationObject = jDestinationArray.getJSONObject(i); 
     LatLng latlng = new LatLng(destinationObject.getDouble("latitude"), destinationObject.getDouble("longitude")); 
     Marker destinationMarker= 
       map.addMarker(new MarkerOptions() 
       .position(latlng) 
       .title(destinationObject.getString("name")) 
       .icon(BitmapDescriptorFactory.fromResource(destinationIcon)) 
       .snippet(destinationObject.getString("street")) 
       ); 
     markers.put(destinationMarker, latlng); 
     boundsBuilder.include(latlng); 
    } 

    // pan to see all markers on map: 
    LatLngBounds bounds = boundsBuilder.build(); 
    map.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds, width, height, 30)); 
    //map.animateCamera(CameraUpdateFactory.newLatLng(lastLatLng), 3000, null); 
} 

И журнал, когда я открываю карту:

06-27 14:18:28.530: D/dalvikvm(3545): GC_CONCURRENT freed 755K, 10% free 10520K/11655K, paused 13ms+4ms, total 50ms 
06-27 14:18:28.530: D/dalvikvm(3545): WAIT_FOR_CONCURRENT_GC blocked 33ms 
06-27 14:18:28.580: D/dalvikvm(3545): GC_FOR_ALLOC freed 756K, 11% free 10396K/11655K, paused 26ms, total 26ms 
06-27 14:18:28.680: D/dalvikvm(3545): GC_CONCURRENT freed 690K, 11% free 10437K/11655K, paused 2ms+14ms, total 56ms 
06-27 14:18:28.680: D/dalvikvm(3545): WAIT_FOR_CONCURRENT_GC blocked 21ms 
06-27 14:18:28.710: W/ResourceType(3545): No package identifier when getting value for resource number 0x00000000 
06-27 14:18:28.710: D/AndroidRuntime(3545): Shutting down VM 
06-27 14:18:28.710: W/dalvikvm(3545): threadid=1: thread exiting with uncaught exception (group=0x40c42318) 
06-27 14:18:28.730: E/AndroidRuntime(3545): FATAL EXCEPTION: main 
06-27 14:18:28.730: E/AndroidRuntime(3545): java.lang.NullPointerException 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at maps.aj.bk.a(Unknown Source) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at maps.aj.bk.a(Unknown Source) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at maps.aj.al.a(Unknown Source) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at bcn.onTransact(SourceFile:167) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at android.os.Binder.transact(Binder.java:326) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.google.android.gms.maps.internal.IGoogleMapDelegate$a$a.addMarker(Unknown Source) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.google.android.gms.maps.GoogleMap.addMarker(Unknown Source) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.example.foodexp03a.MainActivity.updatePlaces(MainActivity.java:330) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.example.foodexp03a.MainActivity.access$1(MainActivity.java:312) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.example.foodexp03a.MainActivity$LongRunningGetIO.onPostExecute(MainActivity.java:394) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.example.foodexp03a.MainActivity$LongRunningGetIO.onPostExecute(MainActivity.java:1) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at android.os.AsyncTask.finish(AsyncTask.java:631) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at android.os.AsyncTask.access$600(AsyncTask.java:177) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at android.os.Handler.dispatchMessage(Handler.java:99) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at android.os.Looper.loop(Looper.java:137) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at android.app.ActivityThread.main(ActivityThread.java:4744) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at java.lang.reflect.Method.invokeNative(Native Method) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at java.lang.reflect.Method.invoke(Method.java:511) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
06-27 14:18:28.730: E/AndroidRuntime(3545):  at dalvik.system.NativeStart.main(Native Method) 
06-27 14:18:28.900: D/dalvikvm(3545): GC_FOR_ALLOC freed 274K, 7% free 10937K/11655K, paused 62ms, total 62ms 
06-27 14:18:28.980: D/dalvikvm(3545): GC_CONCURRENT freed 65K, 7% free 10945K/11655K, paused 12ms+14ms, total 82ms 
06-27 14:18:28.980: D/dalvikvm(3545): WAIT_FOR_CONCURRENT_GC blocked 1ms 
06-27 14:18:29.010: D/dalvikvm(3545): GC_FOR_ALLOC freed 26K, 7% free 10918K/11655K, paused 31ms, total 31ms 
06-27 14:18:29.020: I/dalvikvm-heap(3545): Grow heap (frag case) to 11.700MB for 1048592-byte allocation 
06-27 14:18:29.050: D/dalvikvm(3545): GC_FOR_ALLOC freed <1K, 7% free 11942K/12743K, paused 30ms, total 30ms 
06-27 14:18:29.110: D/dalvikvm(3545): GC_CONCURRENT freed <1K, 6% free 11981K/12743K, paused 2ms+23ms, total 57ms 
06-27 14:18:29.201: D/dalvikvm(3545): GC_FOR_ALLOC freed 1219K, 15% free 10945K/12743K, paused 38ms, total 38ms 
06-27 14:18:29.211: I/dalvikvm-heap(3545): Grow heap (frag case) to 11.725MB for 1048592-byte allocation 
06-27 14:18:29.231: D/dalvikvm(3545): GC_FOR_ALLOC freed 1K, 7% free 11967K/12743K, paused 28ms, total 28ms 
06-27 14:18:29.321: D/dalvikvm(3545): GC_CONCURRENT freed 1136K, 12% free 11290K/12743K, paused 13ms+20ms, total 82ms 
06-27 14:18:29.461: D/dalvikvm(3545): GC_CONCURRENT freed 48K, 4% free 12305K/12743K, paused 27ms+14ms, total 93ms 
06-27 14:18:29.461: D/dalvikvm(3545): WAIT_FOR_CONCURRENT_GC blocked 33ms 
06-27 14:18:29.641: D/dalvikvm(3545): GC_FOR_ALLOC freed 2623K, 22% free 10873K/13831K, paused 31ms, total 32ms 
06-27 14:18:29.641: I/dalvikvm-heap(3545): Grow heap (frag case) to 11.656MB for 1048592-byte allocation 
06-27 14:18:29.671: D/dalvikvm(3545): GC_FOR_ALLOC freed 1K, 15% free 11895K/13831K, paused 37ms, total 37ms 
06-27 14:18:29.721: D/dalvikvm(3545): GC_CONCURRENT freed 75K, 14% free 11898K/13831K, paused 2ms+4ms, total 45ms 
06-27 14:18:29.801: D/dalvikvm(3545): GC_FOR_ALLOC freed 2113K, 22% free 10892K/13831K, paused 26ms, total 26ms 
06-27 14:18:29.801: I/dalvikvm-heap(3545): Grow heap (frag case) to 11.674MB for 1048592-byte allocation 
06-27 14:18:29.831: D/dalvikvm(3545): GC_FOR_ALLOC freed 4K, 14% free 11912K/13831K, paused 26ms, total 26ms 
06-27 14:18:29.891: D/dalvikvm(3545): GC_CONCURRENT freed 21K, 14% free 11917K/13831K, paused 13ms+7ms, total 63ms 
06-27 14:18:30.021: D/dalvikvm(3545): GC_CONCURRENT freed 2261K, 21% free 10952K/13831K, paused 12ms+8ms, total 66ms 
06-27 14:18:30.021: D/dalvikvm(3545): WAIT_FOR_CONCURRENT_GC blocked 1ms 
06-27 14:18:31.443: I/Process(3545): Sending signal. PID: 3545 SIG: 9 

макета деятельности:

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"> 

    <fragment android:name="com.example.foodexp03a.HomeFragment" 
      android:id="@+id/homeFragment" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" /> 
    <fragment android:name="com.example.foodexp03a.LoginFragment" 
      android:id="@+id/loginFragment" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" /> 
    <fragment android:name="com.example.foodexp03a.SettingsFragment" 
      android:id="@+id/settingsFragment" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" /> 

    <fragment android:name="com.example.foodexp03a.DestinationFragment" 
      android:id="@+id/destinationFragment" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" /> 
    <fragment 
      android:id="@+id/mapFragment" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:name="com.google.android.gms.maps.SupportMapFragment"/> 
</LinearLayout> 

Answer 1

Я не вижу, где вы присвойте userIcon любое значение, и поэтому BitmapDescriptorFactory.fromResource(userIcon) может возвращать null.

Answer 2

1. Первой карта проверки Google является нулевой или NotNull с помощью этого метода -> Если (! GMAP = нуль)
2. Имеете ли вы загрузить маркер форму значка URL (или) добавить изображение маркеров в информационном окно маркеров прямо из url.its можно получить исключение основного сетевого потока.
3. Network Основным исключением резьбы приводит к нулевой маркер изображения, так что вы можете получить исключения нулевого указателя на карте Google

Решение:

добавить следующие строки в OnCreate метод

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder(). allowAll(). build();

StrictMode.setThreadPolicy (политика);