2017-03-06 78 views
0

我使用NSKeyedArchive保存數據,並使用NSKeyedArchiver進行提取。導出/導入NSKeyedArchiver目標文件

// 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]() 
} 

用戶是否可以導出NSKeyedArchiver對象,然後在必要時還原?

回答