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我使用NSKeyedArchive保存数据,并使用NSKeyedArchiver进行提取。导出/导入NSKeyedArchiver目标文件
// file path
static var filePath : String{
let url = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first
return url!.appendingPathComponent("Data").path
}
// save locally
static func saveData(reviewDaysArray : [MyObjects]){
NSKeyedArchiver.archiveRootObject(reviewDaysArray, toFile: filePath)
}
// get local data
static func getData() -> [MyObjects]{
if let data = NSKeyedUnarchiver.unarchiveObject(withFile: filePath) as? [MyObjects]{
return data
}
return [MyObjects]()
}
用户是否可以导出NSKeyedArchiver对象,然后在必要时还原?