如何在iOS中像Android一样实现水平进度条。我尝试了以下方法，并找到了类似deteminate的解决方案。funcstartSendPickUpRequestShakeTimer(){ifself.movingViewTimer==nil{self.movingViewTimer=Timer.scheduledTimer(timeInterval:TimeInterval(movingViewSpeed),target:self,selector:#selector(self.startAnimating),userInfo:nil,repeats:true)}}funcstar