How to work with the startActivity method

Unable to switch to the new activity which is opened by startActivity() method.

1)First im making outgoing call,End the call
2)After that im trying to do operations on message application opening the message window .
3)But im unable to do any operations on message app.

@niranjan Can you please paste the piece of code for better understanding of your problem?

Hi sathish,

i got solution for that query.
its synchronization issue.

Watch this video :