Now we have most of our interface configured without writing a single piece of code. We can run the app to see what it looks like. To do this, first select the simulator you want to run it on from the menu in the top bar. Then you can click on the run button, which is the one with the black triangle. This will open up a new simulator window running your app:

You can rotate the virtual device from the Hardware menu to see what happens when you rotate it and you can try running it on various different simulators. We have configured our view so far to adapt to any screen size.