我的應用程序在Instagram上分享照片，為此，首先將其保存在臨時目錄中：let writePath = NSTemporaryDirectory().stringByAppendingPathComponent("instagram.igo")它正在努力Swift 1.2，但不起作用Swift 2.0。給出錯誤消息是：stringByAppendingPathComponent不可用：改為使用NSURL上的URLByAppendingPathComponent。
3 回答
動漫人物
TA貢獻1815條經驗 獲得超10個贊
看起來stringByAppendingPathComponent在Swift 2.0中刪除了該方法，因此錯誤消息建議使用：
let writePath = NSURL(fileURLWithPath: NSTemporaryDirectory()).URLByAppendingPathComponent("instagram.igo")
更新：
URLByAppendingPathComponent()已取而代之的appendingPathComponent()是：
let writePath = NSURL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent("instagram.igo")
慕神8447489
TA貢獻1780條經驗 獲得超1個贊
它正在工作，NSString你可以像這樣使用它：
extension String {
func stringByAppendingPathComponent(path: String) -> String {
let nsSt = self as NSString
return nsSt.stringByAppendingPathComponent(path)
}
}
現在您可以使用此擴展程序將您轉換String為NSString第一個然后執行操作。
你的代碼將是：
let writePath = NSTemporaryDirectory().stringByAppendingPathComponent("instagram.igo")
這是另一種使用方法：
extension String {
var lastPathComponent: String {
return (self as NSString).lastPathComponent
}
var pathExtension: String {
return (self as NSString).pathExtension
}
var stringByDeletingLastPathComponent: String {
return (self as NSString).stringByDeletingLastPathComponent
}
var stringByDeletingPathExtension: String {
return (self as NSString).stringByDeletingPathExtension
}
var pathComponents: [String] {
return (self as NSString).pathComponents
}
func stringByAppendingPathComponent(path: String) -> String {
let nsSt = self as NSString
return nsSt.stringByAppendingPathComponent(path)
}
func stringByAppendingPathExtension(ext: String) -> String? {
let nsSt = self as NSString
return nsSt.stringByAppendingPathExtension(ext)
}
}
來自HERE的參考資料。
對于swift 3.0：
extension String {
func stringByAppendingPathComponent1(path: String) -> String {
let nsSt = self as NSString
return nsSt.appendingPathComponent(path)
}
}
let writePath = NSTemporaryDirectory().stringByAppendingPathComponent(path: "instagram.igo")
extension String {
var lastPathComponent: String {
return (self as NSString).lastPathComponent
}
var pathExtension: String {
return (self as NSString).pathExtension
}
var stringByDeletingLastPathComponent: String {
return (self as NSString).deletingLastPathComponent
}
var stringByDeletingPathExtension: String {
return (self as NSString).deletingPathExtension
}
var pathComponents: [String] {
return (self as NSString).pathComponents
}
func stringByAppendingPathComponent(path: String) -> String {
let nsSt = self as NSString
return nsSt.appendingPathComponent(path)
}
func stringByAppendingPathExtension(ext: String) -> String? {
let nsSt = self as NSString
return nsSt.appendingPathExtension(ext)
}
}
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