Android - startActivityForResult immediately triggering onActivityResult

Question

I am launching activities from the main activity in my app using the call startActivityForResult(intent, ACTIVITY_TYPE), and they are all working but one.

Answer 1

It also triggers if you have FLAG_ACTIVITY_NEW_TASK in your intent.

Intent intent = new Intent(this, MyActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivityForResult(intent, REQUEST_CODE);

Answer 2

Android 4.4 has a small problem about waiting for the return at the end of the actvity closure To solve this behavior it is important to set :

• all activities will have the same task Affinity attribute. (TaskAffinity = "[SAME STRING]")
• launchmode=singleTop,
• launchIntent.SetFlags(0); // for reset default Intent flags if you launch from package manager

This solution works with all version of Android

See this for taskAffinity: https://asyoulook.com/computers%20&%20internet/android-onactivityresult-being-called-instantly/1004072

Answer 3

In Android Manifest set android:launchMode="singleTop" for activity you want open with result and while opening activity set flag intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);

Answer 4

If you defined android:noHistory="true" in the activity in your AndroidManifest.xml, it will cause the same issue here.

Answer 5

Also, check if android:noHistory="true" on activity in Manifest, if yes, it will not work.

Answer 6

For ActivityGroup or TabHost and others, maybe the xxxActivity is a subActivity of its parent. Then the startActivityForResult can not work but the parent can get the result.

1. call getParent().startActivityForResult() from your sub-activity

2. your parent (the ActivityGroup) will be able to handle the onActivityResult. So I created a subclass of ActivityGroup and handled this onActivityResult.

3. You can re-route that result back to the sub-activity if you need to. Just get the current activity by getLocalActivityManager().getCurrentActivity() . My sub-activities inherit from a custom activity so I added a handleActivityResult(requestCode, resultCode, data) in that subclass for the ActivityGroup to call.

example: http://www.cnblogs.com/relinson/archive/2012/03/25/startActivityForResult.html