ios - swift 将数据发送到Apple Watch

Question

在我的应用程序中，我正在向 Apple Watch 发送数据(即“UILabels”和“UIImage”)。正在成功发送。现在在我的 watch 主视图中显示从 ios 应用程序发送的数据，我有一个按钮打开一个表格 View ，我在其中拍摄了 1 个 ImageView 和 4 个标签。现在我也希望在表格 View 中显示相同的数据，即每次我将数据从 ios 应用程序发送到 watch 应用程序时，应该显示我从 ios 应用程序发送的每个条目并且也应该保存。我希望数据显示为与保存在我的 ios 应用程序中的数据相同，如下图所示 :

IOS 应用源代码

class TicketDetailViewController: UIViewController, WCSessionDelegate {
    let dic1  = NSMutableDictionary()
    var defaults = NSUserDefaults()
    var databasePath = NSString()
    var holding_Ticket_category: String = ""
    var holding_Image: UIImage?
    var hold_ticketName: String = ""
    var hold_ticketDate: String = ""
    var hold_ticketTime: String = ""
    var session: WCSession!
    var imageData: NSData!

    @IBOutlet weak var ticket_grey: UIImageView!
    @IBOutlet weak var cropped_frame: UIImageView!
    @IBOutlet weak var display_image: UIImageView!
    @IBOutlet weak var ticket_type_name: UILabel!
    @IBOutlet weak var ticket_date: UILabel!
    @IBOutlet weak var ticket_time: UILabel!
    @IBOutlet weak var ticket_category: UILabel!

    override func viewDidLoad()
    {
        super.viewDidLoad()
        if WCSession.isSupported(){
            self.session  = WCSession.defaultSession()
            self.session.delegate = self
            self.session.activateSession()
        }

        defaults = NSUserDefaults.standardUserDefaults()
        display_image.image = self.holding_Image
        ticket_type_name.text = hold_ticketName
        ticket_date.text = hold_ticketDate
        ticket_time.text = hold_ticketTime
        ticket_category.text = holding_Ticket_category

        let filemgr =  NSFileManager.defaultManager()
        let dirPaths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
        let docsDir = dirPaths[0]
        var ticketDB: FMDatabase

        databasePath = (docsDir as NSString).stringByAppendingPathComponent("ticket_Pass.sqlite")

        if !filemgr.fileExistsAtPath(databasePath as String)
        {     
            ticketDB = FMDatabase(path: databasePath as String)
            if ticketDB.open()
            {  
                let sql_stmt = "CREATE TABLE IF NOT EXISTS TICKET (ID INTEGER PRIMARY KEY AUTOINCREMENT, IMAGEPATH TEXT, IMAGENAME TEXT, TICKET_CATEGORY TEXT, TICKET_TYPE TEXT, DATE TEXT, TIME TEXT)"
                if !ticketDB.executeStatements(sql_stmt)
                {
                    print("Error: \(ticketDB.lastErrorMessage())")
                }
                ticketDB.close()
            } else
            {
                 print("Error: \(ticketDB.lastErrorMessage())")
            }
        }else{
            ticketDB = FMDatabase(path: databasePath as String)
            if ticketDB.open()
            {
                let sql_stmt = "CREATE TABLE IF NOT EXISTS TICKET (ID INTEGER PRIMARY KEY AUTOINCREMENT, IMAGEPATH TEXT, IMAGENAME TEXT, TICKET_CATEGORY TEXT, TICKET_TYPE TEXT, DATE TEXT, TIME TEXT)"
                if !ticketDB.executeStatements(sql_stmt)
                {
                    print("Error: \(ticketDB.lastErrorMessage())")
                }
                ticketDB.close()
            } else
            {

                print("Error: \(ticketDB.lastErrorMessage())")
            }
        }
    }

    func saveImageToFolder()
    { 
        imageData = UIImagePNGRepresentation(holding_Image!)!
        let imageName = "image_\(NSDate.timeIntervalSinceReferenceDate()).png"
        let imagePath = (self.getDocumentsDirectory() as NSString).stringByAppendingPathComponent(imageName)
        print("imagePath:- \(imagePath)")
        print("image size: \(holding_Image?.size)")

        imageData.writeToFile(imagePath, atomically: true)
        NSUserDefaults.standardUserDefaults().setObject(imagePath, forKey: "ImagePath")
        NSUserDefaults.standardUserDefaults().setObject(imageData, forKey: "ImageData")
        NSUserDefaults.standardUserDefaults().setObject(imageName, forKey: "ImageName")
        NSUserDefaults.standardUserDefaults().synchronize()   
    }

    func getDocumentsDirectory() -> String{
        var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)
        let documentsPath = paths[0]
        print("document path:- \(documentsPath)")
        return documentsPath 
    }

    @IBAction func addTickets(sender: UIButton)
    {
        let ticketDB = FMDatabase(path: databasePath as String)
        if ticketDB.open()
        {
                //self.saveImageToFolder()
                let insertSQL = "INSERT INTO TICKET (imagePath, imageName, ticket_category, ticket_type, date, time) VALUES ('\(NSUserDefaults.standardUserDefaults().objectForKey("ImagePath")!)', '\(NSUserDefaults.standardUserDefaults().objectForKey("ImageName")!)', '\(ticket_category.text!)', '\(ticket_type_name.text!)', '\(ticket_date.text!)', '\(ticket_time.text!)')"

                let result = ticketDB.executeUpdate(insertSQL,withArgumentsInArray: nil)

                if !result
                {    
                    print("Error: \(ticketDB.lastErrorMessage())")

                } else
                {
                    let alt = PMAlertController(title: "Success!", description: "Your data is saved to Database!", image: UIImage(named: ""), style: .Alert)

                    alt.addAction(PMAlertAction(title: "OK!", style: .Default, action: { (ACTION) -> Void in

                    self.navigationController?.popToRootViewControllerAnimated(true)

                    }))

                    self.presentViewController(alt, animated: true, completion: nil)
                    print(databasePath)
               }
        }
    }

    @IBAction func deleteTickets(sender: UIButton) {
        let alt = PMAlertController(title: "Delete Ticket Details!", description: "Are you sure?", image: UIImage(named: ""), style: .Alert)

        alt.addAction(PMAlertAction(title: "Cancel", style: PMAlertActionStyle.Default, action: { (ACTION) -> Void in

            self.dismissViewControllerAnimated(true, completion: nil)

        }))
        alt.addAction(PMAlertAction(title: "OK", style: PMAlertActionStyle.Default, action: { (ACTION) -> Void in

            self.navigationController?.popToRootViewControllerAnimated(true)
        }))
        self.presentViewController(alt, animated: true, completion: nil)
    }


    @IBAction func sendToWatch(sender: AnyObject)
    {

        let ticketDB = FMDatabase(path: databasePath as String)
        if ticketDB.open()
        {
            self.saveImageToFolder()
            let insertSQL = "INSERT INTO TICKET (imagePath, imageName, ticket_category, ticket_type, date, time) VALUES ('\(NSUserDefaults.standardUserDefaults().objectForKey("ImagePath")!)', '\(NSUserDefaults.standardUserDefaults().objectForKey("ImageName")!)', '\(ticket_category.text!)', '\(ticket_type_name.text!)', '\(ticket_date.text!)', '\(ticket_time.text!)')"

            let result = ticketDB.executeUpdate(insertSQL,withArgumentsInArray: nil)

            if !result
            {

                print("Error: \(ticketDB.lastErrorMessage())")

            } else
            {

                let alt = PMAlertController(title: "Success!", description: "Your data is saved!", image: UIImage(named: ""), style: .Alert)

                alt.addAction(PMAlertAction(title: "OK!", style: .Default, action:
                { (ACTION) -> Void in


                        let ticketDB = FMDatabase(path: self.databasePath as String)
                        if ticketDB.open()
                        {

//                            let querySQL = "SELECT * FROM TICKET ORDER BY ID DESC LIMIT 1"
                             let querySQL = "SELECT * FROM TICKET "

                            let result: FMResultSet? = ticketDB.executeQuery(querySQL, withArgumentsInArray: nil)

                            if let result = result
                            {

                                let ticketDataArray:NSMutableArray = NSMutableArray()
                                while result.next()
                                {

                                    self.dic1.setObject(result.stringForColumn("imagePath"), forKey: "imagePath")
                                    self.dic1.setObject(result.stringForColumn("imageName"), forKey: "imageName")
                                    self.dic1.setObject(result.stringForColumn("ticket_category"), forKey: "ticket_category")
                                    self.dic1.setObject(result.stringForColumn("ticket_type"), forKey: "ticket_type")
                                    self.dic1.setObject(result.stringForColumn("date"), forKey: "date")
                                    self.dic1.setObject(result.stringForColumn("time"), forKey: "time")

                                    ticketDataArray.addObject(self.dic1)

                                }
                                print("ticketDataArray :  \(self.dic1)")
                            }else
                            {
                                print("Error: \(ticketDB.lastErrorMessage())")

                            }

                          ticketDB.close()

                        }
                      self.navigationController?.popToRootViewControllerAnimated(true)
                        if WCSession.defaultSession().reachable
                        {
                            let dict = ["Watchdat":self.dic1]

                            self.session.sendMessage(dict, replyHandler: { (replayDic: [String:AnyObject]) in
                                print("success!")
                                }, errorHandler: { (error:NSError) in
                                    print("error")
                            })
                        }
                }))

                self.presentViewController(alt, animated: true, completion: nil)
                print(databasePath)
            }
        }

我 watch 的源代码

func session(session: WCSession, didReceiveMessage message: [String : AnyObject], replyHandler: ([String : AnyObject]) -> Void)
{
    //print(message.values)

    MessageData = NSMutableDictionary(object: message, forKey: "data")
    print("\(MessageData)")
    watch_ticket_category.setText("\(MessageData["data"]!["Watchdat"]!!["ticket_category"] as! String)")
    watch_displayImage.setImage(UIImage(named: MessageData["data"]!["Watchdat"]!!["imagePath"] as! String))
    watch_ticketType.setText("\(MessageData["data"]!["Watchdat"]!!["ticket_type"] as! String)")
    watch_ticketTime.setText("\(MessageData["data"]!["Watchdat"]!!["time"] as! String)")
    watch_ticketDate.setText("\(MessageData["data"]!["Watchdat"]!!["date"] as! String)")    
}

Answer 1

您可能需要使用 updateApplicationContext(_:)，并将传输的数据存储在 iPhone 上，并始终通过 updateApplicationContext 共享，它始终会更新数据.