我有一个函数,每2秒刷新一次数组的数据
var timer = Timer()
func timeRefresh(){
    timer = Timer.scheduledTimer(timeInterval: 2, target: self, selector: #selector(ViewController.refreshData), userInfo: nil, repeats: true)
}我从post服务接收数据
@objc func refreshData(){
    post(postString, Route) { (res) in
        let success = res["success"]
        if success == true {
            let walkers = res["walkers"]
            for secondItem in walkers.array! {
                let duration = secondItem["duration"]
                self.timeCar.append(duration.stringValue) //this is the info that i need for the collection view
                }
            }
            print("array time \(self.timeCar)")
        }else{
            self.timeCar = ["-.-","-.-","-.-","-.-","-.-"]
        }
    }
}我需要每秒刷新一次集合视图
cell.typeLabel.text = timeCar[indexPath.row]发布于 2018-10-30 08:21:12
UICollectionView有多种重载数据的方式。
如果您希望重新加载每个单元格:collectionView.reloadData()。
如果您想要重新加载特定的部分:collectionView.reloadSections(<Array of Sections>)。
如果你想重新加载特定的单元格:collectionView.reloadItems(<Array of IndexPaths>)。
https://stackoverflow.com/questions/53055577
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