1.修改Android Apex Mobile Service Location退出后程序Crash。

Apex Mobile/app/src/main/java/com/usai/apex/ServiceLocationFragment.java

@@ -432,7 +432,9 @@ public class ServiceLocationFragment extends Fragment implements
     public void onPause() {
         super.onPause();
 
-        mLocationManager.removeUpdates(this);
+        if (mLocationManager != null) {
+			mLocationManager.removeUpdates(this);
+		}
     }
 
     private void setUpMap() {