appiox8的博客

@IBAction func btn1(_ sender: Any) {        label1.text = "线程开启!"        //GCD swift_3.0        DispatchQueue.global().async {            //sub thread code            sleep( 5 )           

////  ViewController.swift//  Layer////  Created by hong wang on 2017/6/2.//  Copyright © 2017年 appio. All rights reserved.//import UIKitclass ViewController: UIViewController

////  ViewController.swift//  uiSwitch////  Created by hong wang on 2017/6/2.//  Copyright © 2017年 appio. All rights reserved.//import UIKitclass ViewController: UIViewControll

import UIKitclass ViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view, typically from a

1.新建工程2找到工程的TAGETS/General/Deployment Info 如下图,删除Main。.3.删除Main.storyboard，选择“Move to Trash"( 这里不需要删除info.plist中的 Main storyboard file base name项，已经不在了)4. 在AppDelegate.

print(  UIApplication.shared.statusBarFrame.width, UIApplication.shared.statusBarFrame.height )

@IBAction func btn2(_ sender: Any) {//post        let StrUrl = "http://appio.cn/WebTest/LoginCheck" //访问url        let StrBody = "username=admin&password=1234"      //post提交数据        let postNSD

@IBAction func btn1(_ sender: Any) {//get         let urlString = "http://appio.cn/WebTest/LoginTest.jsp"         let url = URL(string:urlString)         //创建请求对象         let request = URLRequ

func PrintFonts() {                let familyNames = UIFont.familyNames        var index:Int = 0        for familyName in familyNames        {            let fontNames = UIFont.fontNames(f

func getStringRect(text:String, font:UIFont) -> CGRect {        let nsText: NSString = NSString( string: text )        let size:CGSize = CGSize(width: UIScreen.main.bounds.width, height: 0)     

////  ViewController.swift//  UIImageView////  Created by hong wang on 2017/6/2.//  Copyright © 2017年 appio. All rights reserved.//import UIKitclass ViewController: UIViewContr

////  ViewController.swift//  UIButton////  Created by hong wang on 2017/6/1.//  Copyright © 2017年 appio. All rights reserved.//import UIKitclass ViewController: UIViewControll

var testString = "This is a test string"var nsdata = testString.data(using: String.Encoding.utf8)//NSData 类型var strdata = String(data: nsdata !, encoding: String.Encoding.utf8) as String!//String

import UIKitclass ViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view, typically fro

import UIKitclass ViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view, typically fro

1. 配置文件内数据//读取        let b:String = UserDefaults.standard.string(forKey: "abc")!        print( b )//写入UserDefaults.standard.setValue("123", forKey: "abc")2. 全局数据,利用AppDelegate单实例特性

1. 普通页面控制器func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {        // Override point for customization af

//跳转self.present(Page1_Spash(), animated: false, completion: nil)//返回self.dismiss(animated: false, completion: nil)

////  ViewController.swift//  UILabel////  Created by hong wang on 2017/6/1.//  Copyright © 2017年 appio. All rights reserved.//import UIKitclass ViewController: UIViewControlle

var topVC = UIApplication.shared.keyWindow?.rootViewController        while topVC != nil {            print( topVC! )            topVC = topVC?.presentedViewController        }

在某些情况下，我们需要删除VC，比如自定义的 启动画面后面一个登陆界面，这样这两个界面在等陆后就不再使用了。 class VC1: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        let lab :UILabel = UILabel(fra

//使用百分比画横线    func setHLine(pos:CGFloat) {        let rLinePos:CGFloat = pos * UIScreen.main.bounds.height        let line: UIView = UIView(frame: CGRect(x: 0, y: Int(rLinePos), width: Int(UIScr