在态势标绘功能模块中，点标绘和箭头标绘都可以使用，都能在地图上标绘出来，但是编辑功能和定位不能用，在mainactivity里我用的百度定位是可以在线与离线定位的，在态势标绘的activity里定位就不能用，在刚进入Activity的时候有报两个异常：
1.GPS模块不可用!
2. Exception locking surface
java.lang.IllegalStateException: Surface was already locked
at android.view.Surface.lockCanvas(Surface.java:242)
at android.view.SurfaceView$4.internalLockCanvas(SurfaceView.java:819)
at android.view.SurfaceView$4.lockCanvas(SurfaceView.java:787)
at com.supermap.mapping.MapControl1.c(MapControl1.java:332)
at com.supermap.mapping.MapControl1.refreshCallback(MapControl1.java:1027)
at com.supermap.mapping.MapControlNative.jni_SetSize(Native Method)
at com.supermap.mapping.MapControl1.a(MapControl1.java:1173)
at com.supermap.mapping.MapControl1.c(MapControl1.java:342)
at com.supermap.mapping.MapControl1$3.surfaceCreated(MapControl1.java:305)
at android.view.SurfaceView.updateWindow(SurfaceView.java:577)
at android.view.SurfaceView.access$000(SurfaceView.java:86)
at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:176)
at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:847)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2012)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1125)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5813)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:762)
at android.view.Choreographer.doCallbacks(Choreographer.java:575)
at android.view.Choreographer.doFrame(Choreographer.java:545)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:748)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5028)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
at dalvik.system.NativeStart.main(Native Method)
