Estimote SDK: Building a beacon iOS app ---- 2/3

since: 2016/07/19
update: 2016/07/30
reference:
1. Beacon Tech Overview - Estimote Developer

Part 2: Background monitoring

A. Start beacon monitoring
    1. 開啟 AppDelegate.swift 修改如下:
....
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.
       
        //@add ################################
        // 3. Set the beacon manager's delegate
        self.beaconManager.delegate = self
       
        //@add ################################
        // request the authorization:
        self.beaconManager.requestAlwaysAuthorization()
       
        //@add ################################
        // case 1: Start monitoring for UUID & major & minor
        /*
        self.beaconManager.startMonitoringForRegion(CLBeaconRegion(
            proximityUUID: NSUUID(UUIDString: "FDA50693-A4E2-4FB1-AFCF-C6EB07647825")!,
            major: 0, minor: 5, identifier: "UUID, major, minor: monitored region"))
        */
       
        // case 2: Start monitoring for UUID & major
        /*
        self.beaconManager.startMonitoringForRegion(CLBeaconRegion(
            proximityUUID: NSUUID(UUIDString: "FDA50693-A4E2-4FB1-AFCF-C6EB07647825")!,
            major: 0, identifier: "UUID, major: monitored region"))
        */
       
        // case 3: Start monitoring for UUID
        self.beaconManager.startMonitoringForRegion(CLBeaconRegion(
            proximityUUID: NSUUID(UUIDString: "FDA50693-A4E2-4FB1-AFCF-C6EB07647825")!, identifier: "UUID: monitored region"))
       
        // stop Monitoring For Region
        /*
        self.beaconManager.stopMonitoringForRegion(CLBeaconRegion(
            proximityUUID: NSUUID(UUIDString: "FDA50693-A4E2-4FB1-AFCF-C6EB07647825")!, identifier: "UUID: monitored region"))
        */

        // check regionsCount       
        /*
        let regionsCount = self.beaconManager.monitoredRegions.count
        print("regionsCount = \(regionsCount)")
        */

        return true
    }
....

    2. 結果:
        執行 app 並 Lock 住, 當 Unlock 時, 左下角會出現: Suggested apps,
        將其往上滑(swiped up), 就可以開啟此 app.
        說明: 必須配合 self.beaconManager.requestAlwaysAuthorization() 才有效

-----------------------------------------------------------------------------------------------

B. Show an "enter / exit" region notification
    1. 開啟 AppDelegate.swift 修改如下:
....
    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.
        ....
        //@add ################################
        // to show notifications
        UIApplication.sharedApplication().registerUserNotificationSettings(
            UIUserNotificationSettings(forTypes: .Alert, categories: nil))
       
        return true
    }

    //@add ################################
    // Show an "enter" notification
    func beaconManager(manager: AnyObject, didEnterRegion region: CLBeaconRegion) {
        let notification = UILocalNotification()
        notification.alertBody =
            "You enter the region!"
        UIApplication.sharedApplication().presentLocalNotificationNow(notification)
       
        print("You enter the region! identifier: \(region.identifier)")
    }
   
    //@add ################################
    // Show an "exit" notification
    func beaconManager(manager: AnyObject, didExitRegion region: CLBeaconRegion) {
        let notification = UILocalNotification()
        notification.alertBody =
            "You exit the region!"
        UIApplication.sharedApplication().presentLocalNotificationNow(notification)
       
        print("You exit the region! identifier: \(region.identifier)")
    }
....

    2. 結果:
        說明: 必須配合 self.beaconManager.requestAlwaysAuthorization() 才有效