Help! My Android app isn't working!

Hi Pootis,

You might want to post some code or zip up your project and send it to help@teamtreehouse.com so that Ben our Android teacher can look at it.

Yes, please zip it up and send it along! Perhaps the image file is in the wrong place, and maybe there is a typo or something in the OnClickListener for the button. If you send your code I can hopefully find the problem quickly. Or even post some code in here and see if the members can help. :-)

Ok , Thanks :)

Got your code and I'm replying here in case anyone else runs into these same problems. :)

First, the button isn't doing anything because an important line is missing. Maybe it was deleted during the Simple Refactoring video? Check out how the code looks around the 10 minute mark and you should see what's missing from the onClick() method.

The Crystal Ball image is missing because file names in the "res" directory of Android projects can only have letters, numbers, or underscores. All the letters must be lowercase, too. White space and capital letters are not allowed. It looks like you renamed "crystal_ball.png" to "Crystal Ball Layout.png". Try renaming it (and updating the name in activity_main.xml) and the image should show up for you.

Hope this helps! Reply back if you need any further details.

Thanks!

EDIT: I did what you said, but still nothing happened. I'll send it again.

Is it possible that the problem has something to do with the emulator rather than the code?

There were two definite problems with the code. If those are fixed then it could possibly be a problem with the emulator, but I doubt it if the emulator works otherwise.

Problem 1: setText() missing

In your onClick() method, the line answerLabel.setText(answer) was missing after answer is set.

Problem 2: Crystal Ball Layout.png is an invalid name

You need to rename that file to crystal ball.png (no caps or whitespace) and then also change the reference to the filename in the Image View background attribute. It should be "@drawable/crystal_ball"

Verify that these are fixed correctly, and if you are still having problems, send your code again or paste it in here.

Good luck!

:D It worked! Thank you :)