在Swift的早期版本中,可以使用以下代码创建延迟:
let time = dispatch_time(dispatch_time_t(DISPATCH_TIME_NOW), 4 * Int64(NSEC_PER_SEC))
dispatch_after(time, dispatch_get_main_queue()) {
//put your code which should be executed with a delay here
}
但是现在,在Swift 3中,Xcode自动更改了6个不同的东西,但随后出现了以下错误:"Cannot convert DispatchTime.now
to expected dispatch_time_t
aka UInt64
“。
如何在Swift 3中运行代码序列之前创建延迟?
https://stackoverflow.com/questions/38031137
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