評估你的 App 是否加入 Apple Watch 功能

ViewController.swift

//
//  ViewController.swift
//  WatchPairedExample
//
//  Created by 張 景隆 on 2015/11/26.
//  Copyright © 2015年 張 景隆. All rights reserved.
//

import UIKit
import WatchConnectivity

class ViewController: UIViewController, WCSessionDelegate {

    @IBOutlet weak var label: UILabel!
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        if WCSession.isSupported() {
            let session = WCSession.defaultSession()
            
            session.delegate = self
            session.activateSession()
            
            if session.paired {
                label.text = "有配對 Apple Watch"
            }
            else {
                label.text = "無 Apple Watch"
            }
        }
        
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}