Android Studio Java - looking solution to reset Previous Activity in passed activity

Question

Assume I have 2 activities called "ActivitiyA" and "ActivitiyB".

I have an intent that enables me to go "activityB" from "activityA". In one of the function in "activityB" will be called "finish()" to send the user back to "ActivityA". Before showing activity A, I would like to reset 2 EditText from "ActivityA".

In order to satisfy above scenario what should I do?

Thanks.

Answer 1

In ActivityA, launch ActivityB for result using startActivityForResult and check for onActivityResult to clear edittext

val REQUEST_CODE = 1234
startActivityForResult(Intent(this, ActivityB::class.java), REQUEST_CODE)

override fun onActivityResult(requestCode: Int, resultCode : Int, data: Intent){  
     super.onActivityResult(requestCode, resultCode, data)
     if(requestCode == REQUEST_CODE) {  
         //clear or reset edittext here
     }  
} 

In ActivityB, before finishing do below

setResult(1234, Intent())
finish()