So far, none of our code has actually created anything on the screen. Now we need to create some visual components for the user to interact with, starting with the main panel that will contain our application.
Drag a Tab Panel object out of the Toolbox list on the left and drop it onto the iPhone screen in the designer. A Panel option will now appear in Project Inspector. Select Tab Panel and add the following information to the Config area:
Save the project and let's take another look at the code for your project. In the
app.js file, you will now see the following code: ...