Android – Google Maps Extensions – IllegalArgumentException

当我调用这个createMarker（）方法时，我得到一个IllegalArgumentException：

private void createMarker(GoogleMap map, MarkerOptions options, OnMarkerCreateListener listener) { Log.e("LazyMarker", "Options var val: "+options); Log.i("LazyMarker", "GoogleMap Value:"+map); Log.i("LazyMarker", "OnMarkerCreateListener Value:"+listener); marker = map.addMarker(options); //Log.i("LazyMarker", "The value of Marker is:"+map.addMarker(options)); if (listener != null) { listener.onMarkerCreate(this); } } 

这是logcat输出：

 06-14 11:40:38.627: I/OGT.RideTracking(25590): Map value is: com.google.android.gms.maps.GoogleMap@4249bd30 06-14 11:40:38.627: E/LazyMarker(25590): Options var val: com.google.android.gms.maps.model.MarkerOptions@4318baf8 06-14 11:40:38.627: I/LazyMarker(25590): GoogleMap Value:com.google.android.gms.maps.GoogleMap@4249bd30 06-14 11:40:38.627: I/LazyMarker(25590): OnMarkerCreateListener Value:null 06-14 11:40:38.637: D/AndroidRuntime(25590): Shutting down VM 06-14 11:40:38.637: W/dalvikvm(25590): threadid=1: thread exiting with uncaught exception (group=0x415d7438) 06-14 11:40:38.637: E/AndroidRuntime(25590): FATAL EXCEPTION: main 06-14 11:40:38.637: E/AndroidRuntime(25590): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.android.gpstracker/com.polaris.epicriders.Rides.RideTracking}: java.lang.IllegalArgumentException: no position in marker options 06-14 11:40:38.637: E/AndroidRuntime(25590): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2088) 06-14 11:40:38.637: E/AndroidRuntime(25590): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2113) 06-14 11:40:38.637: E/AndroidRuntime(25590): at android.app.ActivityThread.access$700(ActivityThread.java:139) 06-14 11:40:38.637: E/AndroidRuntime(25590): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1224) 06-14 11:40:38.637: E/AndroidRuntime(25590): at android.os.Handler.dispatchMessage(Handler.java:99) 06-14 11:40:38.637: E/AndroidRuntime(25590): at android.os.Looper.loop(Looper.java:137) 06-14 11:40:38.637: E/AndroidRuntime(25590): at android.app.ActivityThread.main(ActivityThread.java:4918) 06-14 11:40:38.637: E/AndroidRuntime(25590): at java.lang.reflect.Method.invokeNative(Native Method) 06-14 11:40:38.637: E/AndroidRuntime(25590): at java.lang.reflect.Method.invoke(Method.java:511) 06-14 11:40:38.637: E/AndroidRuntime(25590): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004) 06-14 11:40:38.637: E/AndroidRuntime(25590): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771) 06-14 11:40:38.637: E/AndroidRuntime(25590): at dalvik.system.NativeStart.main(Native Method) 06-14 11:40:38.637: E/AndroidRuntime(25590): Caused by: java.lang.IllegalArgumentException: no position in marker options 

我的MarkerOptions和GoogleMap值不为空？ 问题在于这一行：

 marker = map.addMarker(options); 

当我评论上面的线路时，应用程序继续下一个活动就好了。 这是我的问题？ 任何帮助，将不胜感激。

Answer 1

 Caused by: java.lang.IllegalArgumentException: no position in marker options 

显然，您的MarkerOptions没有位置。 请拨打position()以提供放置标记的位置。

Answer 2

它对我有用，

 MarkerOptions mMarkerOptions = new MarkerOptions(); mMarkerOptions.position(new LatLng(lat, lang)); mMarkerOptions.anchor(0.5f, 0.5f);