What my App does ? The App I am developing is a typical client server App which talks to a windows server using Wifi. The Application has multiple Activitie
One thing that can be the problem, is that maybe your app crashes somewhere inside the native code and this will suddenly stop your app without any message, and nothing printed in the Logcat.
I had the same problem, while trying to decode some bitmaps, android crashed somewhere inside native code and the app stops, without displaying any message.
Regarding onLowMemory() @Tom answers covers it.