Android Development: Startactivityforresult and StartActivity comparison

Take a_activity jump to b_activity for example.

First, startactivity

A call startactivity jumps to B, and then wants to jump from B to a, then B needs to call the StartActivity or Startactivityforresult method.

Second, Startactivityforresult

A call Startactivityforresult jumps to B, when B finishes off, it automatically jumps to a, and the callback data to a.

The additional work is:

1.B calls Setresut (int resultcode, Intent Intent) after the call to finish ().

2.A needs to rewrite onactivityresult (int requestcode, int resultcode, Intent Intent) to retrieve the transmitted data.

Android Development: Startactivityforresult and StartActivity comparison