Today I got that when I went out of focus from the app, still connected:
02-17 12:37:39.450 27225-27225/com.yuneec.yuneecandroidexample E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.yuneec.yuneecandroidexample, PID: 27225
java.lang.NullPointerException: Attempt to invoke virtual method 'void com.yuneec.example.component.fragment.ConnectionFragment.setDroneHealthView(java.lang.String)' on a null object reference
at com.yuneec.example.component.actitivty.MainActivity$3.run(MainActivity.java:157)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:241)
at android.app.ActivityThread.main(ActivityThread.java:6274)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Today I got that when I went out of focus from the app, still connected: