如果孩子已经完成，则阻止参加家长活动

Question

I have some kind of a login activity which returns to main if login successfull. But after that, if user presses hardware "back" button, main activity is restarting for some reason...
It seems like it is going to previous (login) activity, but since it has already finished, parent activity is restarted.
I have tried using <activity android:noHistory="true"> on login activity in manifest. startActivityForResult() is not a solution for me as well. Problem remains.

Can you help me with any other ideas?

UPD: I am calling finish() when going back to main activity

Answer 1

This is probably because you haven't finished your activity when you're 'returning' to main. Check where you create your intents, always finish activities you do not want to be accessed via the back stack.

Answer 2

try use this after each startActivity()

startActivity(intent);//you already have this
finish();//add just this .. and report

Answer 3

Do not call finish() inside of onBackPressed() method. Android / OS will do it for you automatically.

Call finish() only If login was ok and you want to close the login activity. Of course only if main activity present in the back stack.

If back stack contains no main activity, so open it by using of common startActivity method. Also check this answer to remove an activity from the back stack.

Answer 4

Problem is solved by forcely exiting the whole application in main activity's onBackPressed() method. Although, it doesn't seem like a clear solution to me.