1. Create a single-view application
2. Drag a Viewcontroller controller into the Main.storyboard
3. Add a button to the first Viewcontroller
4. Press the control key to push to the second view, select model
5. Run the application and click on the button, then the second view controller will come out.
6. Add a button to the second view controller to return to the first view controller
7. First add the Gameviewcontroller class for the second view Controller to control the second view controller
8. Open the Auxiliary editor and drag the button to return to the home page to add an action to this button
9. In the event: [Self dismissviewcontrolleranimated:yes completion:nil];//turns this view controller off to show the first controller
10. Run again, the program, you can click the Home button to the second view controller, you can also click on the second View Controller button back to the first controller
ios-switching between multi-view controllers