How to know if an activity is called using startActivityForResult or simply called by using startActivity?

Question

or should i send some extra data in the Intent to know the call ?if there is no predefined method,like getIntent and do something with it ?

Answer 1

I know this question is answered already but I have a better solution..

When your activity was started just by startActivity() a getCallingActivity() method in target activity will return null. When it was called by startActivityForResult() it will return name of calling activity.

See getCallingActivity for more details.

So you can check in Activity before finishing for calling activity. If result is null Activity was called by startActivity() and if result is not null then Activity was called by startActivityForResult(). Thats it.

example :-

if (getCallingActivity() == null) {
    //This Activity was called by startActivity 
} else {
   //This Activity was called by startActivityForResult
}