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Android Build a Self-Destructing Message Android App Relating Users in Parse.com Selecting Friends from a List

Michael Ikhane
Michael Ikhane
2,390 Points
Posted by Michael Ikhane
Michael Ikhane
2,390 Points

Navigate Up when findInBackground() is in progress crashes Ribbit

Hi,

I realized that when I don't have internet access or turn on airplane mode on the emulator, and I go back when the EditFriendsActivity is trying querying users from Parse.com the app crashes. with this error.

E/AndroidRuntime(2030): android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@52a2e604 is not valid; is your activity running?

on this line of code;

dialog.show();

I suspect that its because that context from which the dialog was called no longer exists.

Please can someone tell me how to resolve this?

Thanks, Michael

2 Answers

Ben Jakuben
STAFF
Ben Jakuben
Treehouse Teacher
Ben Jakuben
Ben Jakuben
Treehouse Teacher

This is a bug! I didn't do anything about handling about handling when the network is unavailable or when the calls take a long time because we sort of covered that in the Blog Reader project, but I wish I had done something about this one. You can't make an AlertDialog persist across activities. So the solution would be to use a Toast or some other custom View instead of the AlertDialog. If you use a custom view, you need to add it to the WindowManager like this StackOverflow question: http://stackoverflow.com/a/20463727/475217

Michael Ikhane
Michael Ikhane
2,390 Points
Michael Ikhane
Michael Ikhane
2,390 Points

Hi Ben,

I have been away from TH school because I haven't been feeling well.

I thought i heard you mention that the Parse library will take care of the network connectivity issues for us.

I followed the link you gave but it seems too complicated for my rookie skills. I guess I can get by, using a Toast.

Thanks