With the data source implemented, the next step is to create and initialize an instance of the UIPageViewController class.
== Running the UIPageViewController Application ==
Click on the Run button to compile and launch the application in the iOS iPhone Simulator or on a physical device. Once loaded, the first content page should appear. A right to left gesture motion on the screen will cause the page to transition to the second page of content and reversing the gesture direction will page backwards:
[[Image:ios_7_page_app_running.png|An iOS 7 example UIPageViewController app running]]
Figure 28-2
== Running the UIPageViewController Application ==