ios development tutorial swift

// Convert an attachment to an attributed text of type nsattributedstring 6 let attstr = nsattributedstring (attachment:attachment) Gets the text in the current TextView, turns it into a variable text, records the position of the cursor, and inserts the attributed text in the previous step 1 //Get all the text of TextView, turn it into variable text 2 var mutablestr = nsmutableattributedstring (attributedstring: Textview.attributedtex

When we print objects in iOS development, we directly output the object address, which is not convenient for us to develop. When we can use description to print objects, the properties of the output objectYou can rewrite it directly in OC. The printable protocol is required in SwiftLook at the following example1 Overridevar description:string {2Let properties = ["Property 1","Property 2","Property 3","P

(Nsrange (Location:startindex, Length:endindex-startindex))}} PublicStaticFunc Prettynumber (num:double), string{if(Num 10000){ return"\ (Int (num))";}Elseif(Num 100000){return"\ (num/1000.0)". SUBSTRING (0, EndIndex:4)+"K"}Elseif(Num 1000000){return"\ (num/1000.0)". SUBSTRING (0, EndIndex:3)+"K"}Elseif(Num 100000000){return "\ (num/1000000.0)". SUBSTRING (0, EndIndex:4)+"M"}Elseif(Num 1000000000){ return"\ (num/1000000.0)". SUBSTRING (0, EndIndex:3)+"M"}Elseif(Num 100000000000){ return"\ (num/

="Please enter your password"PassNumber.layer.borderWidth=1PassNumber.layer.borderColor=Uicolor.lightgraycolor (). Cgcolor PassNumber.layer.cornerRadius=5Self.view.addSubview (Passnumber) self. Passnumber=Passnumber///Password Recoveryvar button = UIButton (Frame:cgrectmake ( $, the, -, -) ) Uibutton.buttonwithtype (uibuttontype.custom) button.settitle ("Forgot Password", ForState:UIControlState.Normal) Button.settitlecolor (Uicolor.lightgraycolor (), ForState:UIControlState.Norm AL) Self.view.a

Create a single view appIn the View window stall a navigation controller, the default navigation controller is automatically associated with the table view, if not required, you can delete the automatically added table view, create a new view Controller can be associated with navigation controller. (Right-drag from Nav to view, select Rootview)650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6D/A5/wKiom1VoIRrTVOsaAABIDe5-hKE437.jpg "style=" float: none; "title=" Nav.png "alt=" Wkiom1vo

} - Wuyi Overridefunc didreceivememorywarning () { the super.didreceivememorywarning () - //Dispose of any resources the can be recreated. Wu } - About $ //Get file directory -Func GetPath (filename:string)String { -var paths = Nssearchpathfordirectoriesindomains (Nssearchpathdirectory.documentdirectory, Nssearchpathdomainmask.userdomainmask,true) -var documents = paths[0] as?String A returndocuments!. stringByAppendingPathComponent (fileName) + } the -

The first step is to drag a iad bannerview control into the storyboard and the layout is OK.The second step is to refer the control to the ViewcontrollerThe fourth step, the Code section.Import Uikitimport Iadclass Viewcontroller:Uiviewcontroller, Adbannerviewdelegate {@IBOutletWeakvar myad:adbannerview! Override Func Viewdidload () {Super. Viewdidload()additional setup after loading the view, typically from a nib. Self. Candisplaybannerads=true Self. Myad. Delegate= Self

) theUiview.setanimationduration (2.0)//Set Animation time -Self.testimageview.transform=cgaffinetransformrotate (Self.testImageView.transform, CGFloat (-m_pi/2)) $ uiview.commitanimations () the the //independent rotation, rotated at the initial position the //self.testimageview.transform=cgaffinetransformmakerotation (CGFloat (M_PI/6)) the } - in //catransition Animations-zooming the @IBAction func cascale () the { About the //Continuous Scali

flipanimation ()Panax Notoginseng { - uiview.beginanimations (Nil, Context:nil) theUiview.setanimationduration (1.0)//Set Animation time +Uiview.setanimationtransition (Uiviewanimationtransition.flipfromleft, Forview:testimageview, cache:true) A //uiview.setanimationtransition (Uiviewanimationtransition.flipfromright, Forview:testimageview, cache:true) the uiview.commitanimations () +}Create two views1 //over-animation add two views2Redview = UIView (Frame:cgrectmake ( $, -, -, -))

//Alternatively, you can set it together by using the Setviewcontrollers method +Newtabbarctl.setviewcontrollers ([Itemctl1,itemctl2,itemctl3,itemctl4], animated:true) - the Bayi //Create 4 instances of Uitabbaritem thevar barItem1 = Uitabbaritem (title:"Red", Image:nil, Tag: One) thevar barItem2 = Uitabbaritem (title:"Green", Image:nil, Tag: A) -var barItem3 = Uitabbaritem (title:"Blue", Image:nil, Tag: -) -var barItem4 = Uitabbaritem (title:"Orange Color", Image:nil,

Synchronous get Mode1 //MARK:-Synchronous Get Mode2 func synchronousget ()3 {4 //Create a Nsurl object5var url:nsurl! = Nsurl (string:"http://m.weather.com.cn/data/101010100.html")6 7 //Create Request Object8var urlrequest:nsurlrequest = nsurlrequest (Url:url, CachePolicy:NSURLRequestCachePolicy.UseProtocolCachePolicy, timeOutInterval:Ten)9 Ten //Response Object Onevar response:nsurlresponse? A - //Error Object -var error:nserror?