www.mjjq.net > swiFt nstimEr

swiFt nstimEr

var timer = NSTimer(timeInterval: , target: , selector: #selector(), userInfo: , repeats: )// 停止timertimer.invalidate()

创建一个静态int在你的计时器委任函数中,初始化为0.每次委任被调用的时候增加它。当计数器达到你期望的值的时候使计时器无效

第一种:用计时器 var timer = NSTimer.scheduledTimerWithTimeInterval(0.1, target: self, selector: Selector("someSelector"), userInfo: nil, repeats: false) func someSelector() { // Something after a delay }

struct MyClassConstants{ static let testStr = "test" static let testStrLength = countElements(testStr) static let arrayOfTests: [String] = ["foo", "bar", testStr]}参考上面的例子。最好用一个struct来控制存储。定义struct以后全局范...

var dateComponents = NSDateComponents() dateComponents.day = 25 dateComponents.month = 12 dateComponents.year = 2015 dateComponents.second = 0 let christmasDay = NSCalendar(identifier: NSCalendarIdentifierGregorian)!.dateFromCo...

程序运行起来,欢迎界面之后,会进入AppDelegate,因此我们可以在application: didFinishLaunchingWithOptions:添加代码完成想要的效果。连网获取图片可以用第三方SDWebImage实现,所以需要先将第三方文件夹导入。因为显示广告的页面是在欢迎界...

您可以使用 NSTimer 为那像如下所示为代码: myTimer = NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: Selector("myPerformeCode:"), userInfo: nil, repeats: true) 帮助器方法将是: func myPerformeCode(timer : NSTimer...

第一种:用计时器 var timer = NSTimer.scheduledTimerWithTimeInterval(0.1, target: self, selector: Selector("someSelector"), userInfo: nil, repeats: false) func someSelector() { // Something after a delay }

网站地图

All rights reserved Powered by www.mjjq.net

copyright ©right 2010-2021。
www.mjjq.net内容来自网络,如有侵犯请联系客服。zhit325@qq.com