Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.Context com.supermap.mapping.MapControl.getContext()' on a null object reference
at com.lcdx.supermap.baidul.TrackListPopup.<init>(TrackListPopup.java:40)
at com.lcdx.supermap.baidul.MainActivity.initViews(MainActivity.java:434)
at com.lcdx.supermap.baidul.MainActivity.onCreate(MainActivity.java:125)
at android.app.Activity.performCreate(Activity.java:7050)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
