You must first install the plugin for Genymotion, click on the “File” tab, find the “Plug-in” option, down, look for Genymotion, and then install. After installation, you need to restart Android Studio, after which you will see the Genymotion icon next to the Sdk Manager icon, click on it, and then simply indicate the location of your Genymotion installation. Also, make sure you have the "Oracle Virtual Box" installed to use Genymotion, this is a requirement.
Edit - 
Then your genymotion virtual machines will appear, click the one you want (I think it needs to be turned off to start clicking / not popping), then click "Start",

then click the green play icon next to the center of the button bar below the menu bar, and then the genymotion virtual machine appears, which will be displayed in the "running devices" section. select it and click “OK”, and it should start and show your program.

Biu Dec 03 '14 at 3:24 2014-12-03 03:24
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