Swift enables the iOS interface to jump

iOS development in the interface jump in two ways, up and down jump and left and right jump.

Next Jump _to:

Let Secondviewcontroller = Secondviewcontroller ()  Self.presentviewcontroller (Secondviewcontroller, animated: True, Completion:nil)  

on jump _back:

Dismissviewcontrolleranimated (True, Completion:nil)  

right Jump _to:

(Push the new view controller into Navigationcontroller, which is equivalent to the stack operation)

Let Secondviewcontroller = Secondviewcontroller ()  

left jump _back:

(The current view controller is removed from the Navigation view controller stack to return to the upper-level interface)

( - ) Back_ to the previous level:

Let Firstviewcontroller = Firstviewcontroller ()  Self.navigationcontroller?. Popviewcontrolleranimated (True)  

(-) Back_ specified interface:

Get a view controller in the View controller let  Viewcontroller = Self.navigationcontroller?. Viewcontrollers[0]  Self.navigationcontroller? Poptoviewcontroller (Viewcontroller as! Uiviewcontroller, Animated:true)  

(-) back_ root view:

The settings for the root view need to be set in Appdelegate:

var window:uiwindow?  Func application (application:uiapplication, didfinishlaunchingwithoptions launchoptions: [Nsobject:anyobject]?)- > Bool  {      var firstviewcontroller = Firstviewcontroller ()      var rootnavigationviewcontroller = Uinavigationcontroller (Rootviewcontroller:firstviewcontroller)                self.window!. Rootviewcontroller = Rootnavigationviewcontroller                return True  }  

Swift enables the iOS interface to jump