Tutorial by Examples

Using a file Swift let data = NSData(contentsOfFile: filePath) //assuming filePath is a valid path Objective-C NSData *data = [NSData dataWithContentsOfFile:filePath]; //assuming filePath is a valid path Using a String object Swift let data = (string as NSString).dataUsingEncoding(NSUTF8S...

To String Swift let string = String(NSString(data: data, encoding: NSUTF8StringEncoding)) //assuming data is a valid NSData object Objective-C NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; //assuming data is a valid NSData object [string release]; T...

NSData can be represented as hexadecimal string, similar to what it outputs in its description method. Swift extension NSData { func hexString() -> String { return UnsafeBufferPointer<UInt8>(start: UnsafePointer<UInt8>(bytes), count: length) .reduce(&quo...