"如何使用 Swift 將 Data\/NSData 轉換為整數數組"

Question

我有一個從服務中的特征收到的數據

let value = characteristic.value

Answer 1

1）如果您有stingyfy josn（來自API響應），則可以使用將其直接轉換為[Int] 。

do {
    let IntArray = try JSONSerialization.jsonObject(with: dataObject, options:[])
    print(IntArray)
    // print: 1,2,3,4,5,6,7,8,9
}catch{
    print("Error in Serialization")
}

2）如果要[Int] and Data轉換，請使用此

您可以使用'archivedData'從[Int]創建Data ，然后使用unarchiveObject返回到[[Int]'。

var listOfInt : [Int] = [1,2,3,4,5,6,7,8,9]

let dataObject = NSKeyedArchiver.archivedData(withRootObject: listOfInt)

if let objects = NSKeyedUnarchiver.unarchiveObject(with: dataObject) as? [Int] {
    print(objects)
    // print: 1,2,3,4,5,6,7,8,9
} else {
    print("Error while unarchiveObject")
}

Answer 2

將 Data\/NSData 轉換為 Integer 數組

// here value is Data type which contain array of byte
let value = characteristic.value

let B0 = value[0]
let B1 = value[1]
let B2 = value[2]
let B3 = value[3]
let B4 = value[4]
let B5 = value[5]

// create a byte of array
let generationByteData: [UInt8] = [B0, B1, B2, B3, B4, B5]
print("generationByteData = \(generationByteData)")

// Result = generationByteData = [3, 17, 34, 0, 0, 0]