Question

感谢您将来的帮助！那是我的阵列：

var malls: [Mall] = [ 
    Mall(name:"yagey", distance:""), 
    Mall[name:"tigey", distance:"") 
]

如何通过mall.distance对商场进行排序？这是我的tableView

的tableView

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! EateriesTableViewCell
    let mall = mallToDisplayAt(indexPath: indexPath)
    let mallLocate = CLLocation(latitude: mall.latitude, longitude: mall.longitude)
    print (mallLocate)

    let distanceInMeters = mallLocate.distance(from: coords) / 1000

    let distanceInMetersString = String(format: "%.1f", distanceInMeters)

    for index in 0..<malls.count {
        var mall = malls[index] // copy a mall value
        mall.distance = distanceInMetersString // change the copy of mall
        malls[index] = mall // put the updated mall back into the array
    }

    cell.distanceLabel.text = distanceInMetersString + "км"
    malls.sort() { $0.distance < $1.distance }
    print (mall.distance)


    return cell
}

Answer 1

首先对商场进行排序，然后将其用作TableView的数据源，TableView将显示按照数组排序商场中的顺序排序的单元格：

    let sortedMalls = malls.sorted { (mallOne, mallTwo) -> Bool in
        return mallOne.distance < mallTwo.distance
    }

也是一个班轮：

let sortedMalls = malls.sorted { $0.mallOne.distance < $1.mallTwo.distance }

使用sortedMalls：

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell

按距离Swift 3排序

1 个答案: