ios - ContentsOfFile 方法在 swift 2.2 中弃用

Question

我在 Objective-C 中的代码是

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"Logger.txt"];
NSString *content = [NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:NULL];

当我尝试将它转换为 swift 时，我无法转换它，因为方法 ContentsOfFile 已被弃用。谁能告诉我如何将其转换为 swift？我正在使用 Xcode 7.2 和 swift 2.2。我在 swift 中的代码是

var paths : NSArray = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
    var documentsDirectory : NSString = paths[0] as! String
    var filePath = documentsDirectory.stringByAppendingPathComponent("Logger.txt")
    var error:NSError?
    let content = NSString(contentsOfFile: filePath, encoding:NSUTF8StringEncoding, error: &error)
    if let theError = error {
        NSLog("\(theError.localizedDescription)")
    }

Answer 1

swift 2+

let path:String = NSBundle.mainBundle().pathForResource("Logger", ofType: "txt")!
txtContent.text = try? String(contentsOfFile: path, encoding: NSUTF8StringEncoding)

swift 3+

let path:String = Bundle.main.path(forResource: "Logger", ofType: "txt")!
txtContent.text = try? String(contentsOfFile: path, encoding: String.Encoding.utf8)