I have a very simple question.

I have been asked by my company to make the actionbar just a simple imageview. So no icon, no title and no buttons at all. I've created a custom actionbar, and the imageview is up there just fine. I have attached a link to an image of my layout, and the emulator on the right. They want the imageview to be like it is in the layout. But in the emulator it comes up small. 

My question is simply: is there a way I can make the imageview fit like it is in the layout there, and of course have it fit for different devices too - or, must the graphic designer simply create a banner that fits the size of an actionbar. If so, I looked at android's iconography and saw the height should be 48dp. but what about the width? And won't different devices have different width? Or will i be able to make sure it is stretched across the whole width of the screen. I've tried match parent in my xml but of course it won't do anything now because it doesn't want to stretch the height of the actionbar. 

Thanks alot

<https://www.dropbox.com/s/1tek8ptar3j76d4/Screenshot%202015-02-27%2009.55.30.png?dl=0>