android - Processing user request in a separate activity -

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i want have loading activity processes log in , register requests ,i tried start loading activity log in , register activities ,and start processing in onstart() function,but if screen goes off , on onstart() calls again , process repeats ,i don't know oncreate() method place or not,and if there approach.

start activity result, startactivityforresult()

like this, can have started activity stuff, , return value.

http://developer.android.com/training/basics/intents/result.html


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