想在swift 5中用事件时间来自我的json api减去当前时间

编程问答 2022-06-02

问题描述

我有一个 api，它为我提供电影时间等事件时间我想在我的应用程序中添加一个倒计时时间，告诉我还有多少时间可以开始看电影。

解决方法

您的代码未显示，但我希望这会有所帮助。

// use repeating scheduledTimer(withTimeInterval:repeats:block:) method for the Timer.
// Initialize the timer and save in the property for invalidating                                                                                                  
private let step: Double = 1.0                                                     
private var timer: Timer?                                                          
                                                                                   
private func initTimer() {                                                         
    let action: (Timer)-> Void = { [weak self] timer in                            
        guard let StrongSelf = self else {                                         
            return                                                                 
        }                                                                          
    }                                                                              
}                                                                                  
timer = Timer.scheduledTimer(withTimeInterval: step,repeats: true,block: action)
private func deinitTimer() {                                                       
    timer?,invalidate()                                                            
    timer = nil                                                                    
}                                                                                  
                                                                                   
// To Display                                                                      
func timeString(from timeInterval: TimeInterval) -> String {                       
    let seconds = Int(timeInterval.turncatingRemainder(dividingBy: 60))            
    let minutes = Int(timeInterval.turncatingRemainder(dividingBy: 60 * 60) / 60) 
    let hours = Int(timeInterval / 3600)                                           
    return String(format: "%.value:%.value:%.value",hours,minutes,seconds   
}                                                                                  
                                                                                   
// Pause & Resume                                                                  
stopwatch.toggle()                                                                 
//Reset                                                                            
stopwatch.stop()
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