iOS boot page

Guide page

1 first in the appdelegate to make a judgment, if the program is the first time the operation is not running on the local record (can be nsuserdefaults to record whether the program has run traces ) 2 Judging if the program is the first time to run the appdelegate rootviewcontroller equals the boot page, the boot page is a viewcontroller, inside a uiscrollview to scroll the Guide page to paste on the scrolling view, Put a button on the last picture, click button to enter the program's home page, when you need to push out a uinavigationcontroller but normal push is only push out a viewcontroller, So here's what the code needs to write 3 so it goes into the program home page