Swift

The following shows how to create a switch and listen for changes to its value, as shown in the code below: 12345678910111213141516171819 class ViewController: UIViewController {    var uiswitch:UISwitch!;    override func

Arc4random () This global function generates a 9-digit random integer1, the following is the use of the Arc4random function to find a 1~100 random number (including 1 and 100) 1 vartemp:Int = Int(arc4random()%100)+1 2

Unlike the navigation controller (Uinavigationcontroller), both the navigation bar and the page switching function are implemented. The navigation bar (Uinavgationbar) can be used alone to add to any uiview. Uinavigationbar More important attributes

In Swift, in addition to the bar progress bar, there are also circular progress bars, as follows: 1, basic properties of the Ring progress bar(1)Style:Large White: A larger, whiter ring-shaped progress barWhite: Circular progress barGray: Grey Loop

Since IOS8, Apple has advised the warning box to use Uialertcontroller instead of Uialertview. Here's a summary of some common uses:1, simple Application (simultaneous button response handler using closure function) 123456789101112131415

Optional types are a feature of Swift. It indicates that a variable may have a value, or it may not have a value (nil).The way to declare is "data type + question mark". And when you want to use a variable of an optional type, add the exclamation

1, the creation of the text box, there are several styles: uitextborderstyle.none: no Border uitextborderstyle.line: line Border uitextborderstyle.roundedrect: Rounded rectangle border Uitextborderstyle.bezel: Edge + Shadow 1234

In many iOS products or some application version of the upgrade, novice guidance is a common feature, through the page left and right sliding, can clearly show some of the system's features. Production ideas are as follows:1, how to detect the

Before learning OC When writing a group buy project, now learn swift, take to write with Swift, is also Lianche with Mongolia, 1.1 points of the upward.Today, the main shelf is set up.There are: Uitabbarcontroller,uinavigationcontroller, and

1, using storyboard to create a date selection controlFirst we add a Uidatepicker control and a button directly to the Main.storyboard. This button is for the pop-up prompt when clicked to display the date and time of the current selection. Also use

In swift, type checking and conversion are typically implemented using the IS and as operators. The following example shows how to use a method, defining several classes first. 1234567891011 //基类，人类classHuman{} //男人类class

Poke at the final version of @swiftggBrent Simmons to solve the problem that is not present, as if the problem exists in the same way: The type system of Swift solves a problem that I have not met. I feel the same way about that, and I

What is Swift?Swift is a scripting language published by WWDC.Benefits of using Swift: OC ARC The biggest difficult memory managementAnd Swift doesn't have to worry about memory. Simple, functionalVery powerful, simple syntax and OC language can

Original articles, welcome reprint. Reprint Please specify: Dongsheng's Blog in 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

This article is a contribution article, one leaf (blog)Welcome to the original article or translation to us, the way of submission: [email protected] or on the homepage click on the "Submission of explosive material" First, solve the problem The

Original articles, welcome reprint. Reprint Please specify: Dongsheng's BlogIn addition to some commonly used operators, there are some others:• Reference Number (.): an instance invokes an operator such as a property, method, and so on.• Question

??original articles, welcome reprint. Reprint Please specify: Dongsheng's blog In addition to some commonly used operators, there are some others:?        reference number ( ?        question mark ( ): Used to declare an optional type.

////Main.swift//Lessonswiftsix////Created by Keyan on 15/9/13.//Copyright (c) 2015 Keyan. All rights reserved.//Import Foundation/*(1) Closure concept and classification self-contained function code block global function (famous) closure expression (

Swift 2.0 Study Notes (Day 9)--Leave expression you try!Original articles, welcome reprint. Reprint Please specify: Dongsheng's BlogExpression AH is very important.In Swift, there are 3 forms of expressions.L do not specify a data typevar A1 = 10L

Coreanimation (i) calayerCoreAnimationis a big topic, to achieve a lot of cool animation, must master it, before mastering it, first to understand CALayer -layerCalayerWe usually use UIView it to build an application, which CALayer is a property of