onActivityResult method not being called Android

Question

I am trying to send data from child activity to parent. But somehow, onActivityResult(..) is not getting called. here is code

Parent activity

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Answer 1

Use singleTop instead of singleInstace as launchMode as it maintains the activity in the same task.

Answer 2

onPause was effecting onActivityResult.

One of the corner case might be:
my case was different and silly: The problem was in onPause, finish called and end the activity. Removed that and works well.

@Override
protected void onPause() {
    super.onPause();
    finish(); // this line causing the issue removed it. 
}

Answer 3

I found the mistake. I had below line in manifest.xml for child acitivity.

        android:launchMode="singleInstance"

after removing this line. it's working like a charm!!!

Thank You all for your input and suggestions.

Answer 4

Not sure if this is your case, but when starting the child activity make sure you use startActivityForResult(intent), instead of startActivity();

Answer 5

For anyone stuck with same problem, a symptom not to receive onActivityResult, following cases can cause this issue.

• check you are using startActivityForResult() correctly, do not use startActivity().
• if you do something in overriden onBackPressed method, super.onBackPressed(); has to be positioned at the last of the method, not at the first line. (my case to spend 5 hours)
• remove android:launchMode="singleInstance" in manifest or equivalent argument to create a intent.
• remove noHistory="true" in manifest of the callee activity.
• check setResult() is missed.
• finish() is called to close the activity. use finishActivity() to close callee activity.
• use requestCode more than zero. negative value does not work.

Answer 6

My case was a little bit complex and I realized that I used by error a static reference pointing to the first instance of the buttons listeners in a sub activity.

At the first turn it was working, but when the user was returning from the parent activity, onActivityResult was not called.

Replacing the static references was the fix