Several threads from STACK OVERFLOW: We have a simple client server architecture between our mobile device and our server both written in Java. An extremely simple ServerSocket and Socket implementation. However one problem is that when the client terminates abruptly (without closing the socket properly) the server does not know that it is disconnected. Furthermore, the server can continue to write to this socket

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AsyncTaskLoader is a better choice for Activity-bound thread management, because it handles lifecycle changes correctly, delivering the result to the current active activity, preventing duplication of background threads, and helping to eliminate duplication of zombie activities. Leveraging Loaders Steps: Create a Loader ID Fill-in Loader Callbacks Init Loader with LoaderManager Detail: 1. Create a constant int to uniquely identify the loader; Implement tne LoaderManager.LoaderCallbacks<>

Activity and Intent An activity is a single, focused thing that the user can do. Almost all activities interact with the user, so the Activity class takes care of creating a window for you in which you can place your UI with setContentView(View). While activities are often presented to the user as full-screen windows, they can also be used in other ways: as floating

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