在传递给的闭包中sort
,比较要排序的属性。像这样:
movieArr.sorted { $0.name < $1.name }
或以下要绕过案例的案例:
movieArr.sorted { $0.name.lowercased() < $1.name.lowercased() }
通常,只有类型以大写字母开头;我建议使用name
and date
,而不是Name
and Date
。
例如,在操场上:
class Movie {
let name: String
var date: Int?
init(_ name: String) {
self.name = name
}
}
var movieA = Movie("A")
var movieB = Movie("B")
var movieC = Movie("C")
let movies = [movieB, movieC, movieA]
let sortedMovies = movies.sorted { $0.name < $1.name }
sortedMovies
sortedMovies
将按顺序 [movieA, movieB, movieC]
Swift5更新
channelsArray = channelsArray.sorted { (channel1, channel2) -> Bool in
let channelName1 = channel1.name
let channelName2 = channel2.name
return (channelName1.localizedCaseInsensitiveCompare(channelName2) == .orderedAscending)