Android Two activity pass data, Onactivityresult get result when intent is empty problem

Environment: set two activity A and b,a transmit data to B by calling Startactivityforresult (), B receives data processed and puts data into intent using Setresult (ResultCode, Inten) returned.

phenomenon : When fetching data in Onactivityresult (int requestcode, int resultcode, Intent data) of a, Intent is empty and cannot get data.

cause: in activity B, the Setresult call must be setresult before the activity's declaration cycle OnPause (), that is, activity B leaves the top of the stack.

Reference:http://stackoverflow.com/questions/16479886/onactivityresult-intent-data-is-always-null

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Android Two activity pass data, Onactivityresult get result when intent is empty problem