Swift

UiactivityindicatorviewUiactivityindicatorview ( activity Indicator) control, also known as the Loop progress bar, is the loading effect.Creation of Uiactivityindicatorview:(1) using Ctrl+drag drag-and-drop method in Stroyboard to create(2) Code

Here are the 2 types of Swift string interception methods that are actually used substringFromIndex , substringToIndexsubstringWithRange 1. will be String converted to NSString re-interception, the code is as follows: var s= "1234567890" var ns1= (s

main.swift//array////Created by Mac on 15-9-9.//Copyright (c) 2015 young apples. All rights Reserved.//import foundation//immutable group, defined by let var array:[string] = ["ss", "Set", "Jim"]println ("\ (array)") var Array1:[float] =

Set the Transform property of the View object to achieve a variety of animation effects.1, moveIn the same plane, the control translates a certain distance in a straight line direction. 12345 //每次都从当前位置平移self.imageView.transform

1,cakeyframeanimation IntroductionCakeyframeanimation can implement key-frame animations, which can be used to animate a property according to a string of values, as if it were a frame-by-frame production.2, using the sample (set five key

The following example shows how to sort an array of elements. Within the array are custom user objects, which are eventually sorted by user name, with the following data: 1234 var userList = [UserInfo]()userList.append(UserInfo(name:

If you use Uidatepicker to set the mode to Countdowntimer, you can make the control work as a countdown timer. As follows:The following is a code example: 1234567891011121314151617181920212223242526272829303132333435363738394041424344454

The game has background music and sound effects. Let's create a sound-management class to play the background music, and click on the screen to play the corresponding sound.Sound Management class Soundmanager.swift 1234567891011121314151

Use Nsurlconnection.sendasynchronousrequest () to get the data in an asynchronous way. The following encapsulates the data acquisition class, demonstrating how data is requested and received.1,httpcontroller.swift (Data acquisition encapsulation

iOS calendar events can be read, added, and so on via Eventkit. But what we found on the Internet was written using OBJECTIVE-C.Here is a swift version of the sample that shows you how to add an event and get all the list of events. 1234

1, the following code creates and pops up an alarm box with a "Cancel" "OK" button of two(note: Since IOS8, we recommend using Uialertcontroller) 123456789101112131415161718192021222324 class ViewController:

1, the creation of the button(1) There are four types of buttons: Uibuttontype.contactadd: Front with "+" icon button, the default text color is blue, with touch when the highlight effectuibuttontype.detaildisclosure: Front with "!" icon button,

1, the creation of the slider 123456 varslider=UISlider(frame:CGRectMake(0,0,300,50))slider.center=self.view.centerslider.minimumValue=0  //最小值slider.maximumValue=1  //最大值slider.value=0.5  //当前默认值self.view.addSubview(slider)

original articles, welcome reprint. Reprint Please specify: Dongsheng's blog swift key) set, one is the value ( value) collection. A key collection cannot have duplicate elements, and a collection of values can be duplicated, and the keys and values

Classes and structs have a lot in common:Defining properties to store dataDefine method Execution function handlingDefine subscript to access their values by subscriptInitialize their stateExtend its functionality with extensions

Original articles, welcome reprint. Reprint Please specify: Dongsheng's BlogIn other languages such as C, Objective-c, and Java, there are two ways to convert integers: From the small range number to the large range number conversion is

Problem:In Swift, we are unable to use the same #import as Objective-cFor example, in the head input#import is not compiled through theWorkaround:1. Create a new header file2. Manually enter the #import in Headerfile 3. Open Build Settings, Swift

Look at Stanford old man's class, really feel, my Chinese how also changed so rubbish. It's about IOS8 's course, written by Swift, a calculator application, a look at someone else's class, and then a look at our school class (but the garbage school,

Customizing push and pop animations for UinavigationcontrollerLet's create a simple project here, drag a navigation controller in the storyboard, Rootviewcontroller to our viewcontroller.To implement a custom animation switch, we need to implement

original articles, welcome reprint. Reprint Please specify: Dongsheng's blogExpression AH is very important.in Swift, there are 3 forms of expressions. Do not specify a data type var A1 = 10 Specifying data types var