Interaction between activity and fragment--handler

Problem: Now the activity uses Viewpager,viewpager ' element is fragment, the activity as the result of Startactivityforresult, so at the end of the need to pass the current information to the former intent, This includes variables in the instance of the current fragment.

Description: This method, in which the activity obtains only one class, but does not have the user interaction changes the fragment variable

        Willfragment fragment= (willfragment) Madapter.getitem (Mviewpager.getcurrentitem ());

Solve:

Activity code, receive fragment pass message:

 private   Handler Handler;  private   Intent Backintent; ... setHandler ( new  Handler ( New   Callback () {@Override  public  boolean   Handlemessage (Message  Message) { //  TODO auto-generated                Method stub  Backintent= (Intent) message.obj;  return  false  ; }        }));

The corresponding fragment code, which transmits a message to the activity:

New== (willactivity) getactivity (); Willactivity.gethandler (). SendMessage (message);

Done

Interaction between activity and fragment--handler