[[UIScreen mainscreen] bounds] the wrong screen size returned

When using Cocos2d-iphone 2.0 to build the project, the 5s test when the full screen up and down always have black bar, found [[UIScreen mainscreen] bounds] returned the screen size is not 320*568, but 320*480. Later in the project warning found the hint missing [email protected]:

Click and then eject:

Click Add and then run the project to get 320*568 full screen!

In addition, to hide statusbar you also need to add a view controller-based status bar appearance in Info.plist to No

[[UIScreen mainscreen] bounds] the wrong screen size returned