ISO Swift Code First

http://study.163.com/course/courseLearn.htm?courseId=873007#/learn/video?lessonId=1049033&courseId=873007


Empty Application


Appdelegate.swift


var Window:uiwindow?


Self.window = UIWindow (Frame:UIScreen.mainScreen (). Bounds)
self.window!. BackgroundColor = Uicolor.whitecolor ()
self.window!. Makekeyandvisible ()




Create a Controller
var RVC = Rootviewcontroller ()
self.window!. Rootviewcontroller = RVC
return True








Rootviewcontroller.swift
Import Foundation;
Import UIKit;


Class rootviewcontroller:uiviewcontroller{
Override Func Viewdidload () {
Super.viewdidload ();
Add a uilable to the interface
Let rect = CGRect (x:0,y:100,width:320,height:44)
Create a Uilable object
var MyLabel = UILabel (frame:rect)
To set a text on a label
MyLabel.Text = "Striker iOS"
Set a background color for a label
Mylabel.backgroundcolor = Uicolor.redcolor ()
Self.view.addSubview (MyLabel)

var MyButton = UIButton (Frame:cgrect (x:100,y:100,width:100,height:100))
Mybutton.settitle ("Click Me", Forstate:.) Normal)
Mybutton.backgroundcolor = Uicolor.bluecolor ()
Add a click event to MyButton
Mybutton.addtarget (self,action: "ClickMe:", forControlEvents:. Touchupinside)
Self.view.addSubview (MyButton)
}
}


var button = UIButton (Frame:cgrect (x:0,y:0,width:100,height:100))
Button.settitle ("Hello", forcontrolevents:. Normal)
Button.addtarget (self,action: "ClickMe", forControlEvents:. Touchupinside)
Button.backgroundcolor= Uicolor.bluecolor ()
Self.view.addSubview (Button)






2 uinavigation


Let Rcv:uiviewcontroller = Rootviewcontroller ()
Creating a navigation controller
Let Nav = Uinavigationcontroller (ROOTVIEWCONTROLLER:RCV)
self.window!. Rootviewcontroller = nav;


Rootviewcontroller.swift
Import Foundation
Import UIKit


Class rootviewcontroller:uiviewcontroller,fontsizechangedelegate{
Override Func Viewdidload ()
{
Self.title = "title"
Put a button on the right Uibarbuttonitem
Let Nextitem = Uibarbuttonitem (title: "Next Page", Style:.plain,
Target:self,action: "NextPage")
Self.navigationItem.rightBarButtonItem = Nextitem

Define a label
var MyLabel = UILabel (Frame:cgrect (x:1,y:1,width:100,height:100))
mylabel!. Text = "Hello World"
Self.view.addSubview (MyLabel)
}

Func nextPage ()
{
NSLog ("clicked on NextPage")
Let svc = Secondviewcontroller ()
Svc.delegate = Self
Self.navigationController.pushView (Svc,animated:true)
}

Func Fontsizedidchange (Controller:secondviewcontroller, Fontsize:int)
{
Let font = Uifount.systemfontofsize (Float (fontSize))
mylabel!. Font = Font
}
}


Secondviewcontroller.swift
Import Foundation
Import UIKit


Protocol fontsizechangedelegate:nsobjectprotocol{
Defines a protocol function, a function of a proxy
Parameter 1 Current controller itself
Parameter 2 font size
Func Fontsizedidchange (Controller:secondviewcontroller,fontsize:int)
}
Class secondviewcontroller:uiviewcontroller{
var fontsize:int = 20
Define a delegate object, write the Protocol object
var delegate:fontsizechangedelegate?
Override Fun Viewdidload ()
{
Super.viewdidload ()

Self.title = "Second page"
Self.view.backgroundColor = Uicolor.redcolor ()

var B = Uibutton.buttonwithtype (. System) as UIButton
var frame = CGRect (x:100,y:100,width:100,height:40)
B.frame = Frame
B.settitle ("Return to previous layer", forstate:.) Normal)
B.addtarge (self,action: "ClickMe:", Forcontrollerevent:. Touchupside)
Self.view.addSubview (b)

}
Func ClickMe (Sender:uibutton)
{
FontSize + +;
if (DELEAGTE)
{
Delegate?. Fontsizedidchange (Self,fontsize:fontsize)
}
Return to the previous layer
Self.navigationController.popViewControllerAnimated (True)
}


}














































































































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ISO Swift Code First