Rendering problems in Android Studio v 1.1 / 1.2

Question

When I add android.support.v7.widget.Toolbar or another android.support.v7.widget.* there are rendering problems.

But Support Library is up to date. And I complied in dependecies properly. I can import them in MainActivity.java

What is the problem?

Answer 1

UPDATE: Apparently they have fixed this bug in the final Android Studio 1.3 release (according to users reporting this issue solved in the issue tracker: https://issuetracker.google.com/issues/37043358).

This is a known bug since Android Studio build 1.1, which still exists in AS versions 1.2 and 1.3 beta. Switching the preview's API level from 22 to 21 fixes the for most people. While waiting for a fix you could try it as well.

UPDATE: This is already reported as a known issue of Android Studio (http://tools.android.com/knownissues#TOC-Can-t-Render-Layouts-in-Android-Studio-1.2)

Answer 2

I don't know if this will help or not, but I was creating a test project (direct from the wizard, no custom code) and getting this error. Trying to modify the project structure and find the missing class didn't help.

The build failed with the following error:

***rendering problems

The following classes could not be found android.support.v7.internal.widget.ActionBarOverlayLayout***

Obviously it's not the final solution, but changing the Theme in design view from the base "project theme" to anything else allows it to build.