Cast button missing in Codelabs course

Question

I'm trying to learn how to make a Cast feature, so I started this codelabs tutorial https://codelabs.developers.google.com/codelabs/cast-videos-android/index.html#1

The tutorial gave me 2 projects: app-start (the program I have to modify) and app-done (the complete program) I followed instructions until step 5 where i should add the cast button. It doesn't work, nor in modified app-start nor in app-done.

Other apps with cast feature (like youtube) show my Tv without a problem, but this doesn't.

My doubt is about Cast Developer ID that I'll need in future apps, but it says that for this one will be used a sample one.

Did someone found another problem or I just have to buy my Cast Developer ID?

Answer 1

Did you register the chromecast device you have under Cast Receiver Devices in Google Cast SDK Console? If not you'll have to do this, wait for 15 minutes then restart your chromecast. I don't think you can avoid this step. Anyhow, i didn't and had to register my chromecast. Created a dummy application as well. And after this my chromecast started showing up on the discovered devices list.