Write array of Float to binary file and read it in swift

Question

How can I write array of Floatto binary file and then read it?

var array: [Float]: [0.1, 0.2, 0.3]

func writeArrayToBinary(array: [Float]) {
    //...
}

func readArrayFromBinary() -> [Float] {
    //...
}

Answer 1

Please try this...

var array: [Float] = [0.1, 0.2, 0.3]

func writeArrayToPlist(array: [Float]) {
    if let arrayPath: String = createArrayPath() {
        (array as NSArray).writeToFile(arrayPath, atomically: false)
    }
}

func readArrayFromPlist() -> [Float]? {
    if let arrayPath: String = createArrayPath() {
        if let arrayFromFile: [Float] = NSArray(contentsOfFile: arrayPath) as? [Float] {
            return arrayFromFile
        }
    }
    return nil
}

func createArrayPath () -> String? {
    if let docsPath: String = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true).last {
        return ((docsPath as NSString).stringByAppendingPathComponent("myArrayFileName") as NSString).stringByAppendingPathExtension("plist")
    }
    return nil
}