I\'m trying to work with android studio, and so far so good. However, it has yellow indexes, warnings, lightbulbs, (etc) all over the place!
Which is a problem. No,
The latest version of Android Studio (2.1) seems to have a lot more flexibility with its warnings. Settings -> Editor -> Inspections has increased greatly. Then use the search feature to help find the warnings/errors you want to dis(en)able. Then click the checkboxes for the settings you like.
Don't forget to choose "Default" or "Project Default" in the drop-down box.
In this image I managed to find your specific issue (I completely agree with you about that one!) which I unchecked.
These warnings you are seeing are related to the 'Lint' Static Analysis tool.
Not sure about Android Studio, but you can usually right-click to eliminate a particular warning from being shown, or you can actually go into the Lint preferences and disable certain (or all) warnings from a central console.
I find those warnings generally very helpful, and encourage you to not dismiss them so quickly.
You can see your warning scheme by going to Android Studio -> Preferences. On the left side of the window you'll see many options organised in two groups: Project Settings [your project name] and IDE Settings. Inside the former look for Inspections. Now you can decide everything lint will have to say about your code.
AS version 1.1.0.