ios - 更新扩展委托(delegate)中的数组

Question

我正在使用 ExtensionDelegate，因此我可以从我的 InterfaceController(和 ComplicationController 最终访问 evnts 变量).

当我从 WCSession, didReceiveUserInfo 获取数据时，我需要刷新 ExtensionDelegate 中的 evnts，但是不能不太明白怎么做，有什么想法吗？

原因是:evnts 是空的，因为它在 WCSession, didReceiveUserInfo 运行以实际获取数据之前被调用。

(如有任何问题请告诉我，并将根据需要发布任何额外代码!)

ExtensionDelegate:

class ExtensionDelegate: NSObject, WKExtensionDelegate {
    var evnts = [Evnt]()
}

接口(interface) Controller :

func session(session: WCSession, didReceiveUserInfo userInfo: [String : AnyObject]) {

    if let tColorValue = userInfo["TeamColor"] as? String, let matchValue = userInfo["Matchup"] as? String {

        let myDelegate = WKExtension.sharedExtension().delegate as! ExtensionDelegate
        var extEvnts = myDelegate.evnts

        receivedData.append(["TeamColor" : tColorValue , "Matchup" : matchValue])
        extEvnts.append(Evnt(dataDictionary: ["TeamColor" : tColorValue , "Matchup" : matchValue]))

        doTable()

    } else {
        print("tColorValue and matchValue are not same as dictionary value")
    }

}


func doTable() {

    let myDelegate = WKExtension.sharedExtension().delegate as! ExtensionDelegate
    let extEvnts = myDelegate.evnts

    self.rowTable.setNumberOfRows(extEvnts.count, withRowType: "rows")

    for (index, evt) in extEvnts.enumerate() {

        if let row = rowTable.rowControllerAtIndex(index) as? TableRowController {

            row.mLabel.setText(evt.eventMatch)
            row.cGroup.setBackgroundColor(colorWithHexString(evt.eventTColor)) 
        } else {
            print("nope")
        }
    }    
}

Answer 1

你可以让 ExtensionDelegate 中的 evnts 成为静态变量

class ExtensionDelegate: NSObject, WKExtensionDelegate {
    static var evnts = [Evnt]()
}

然后你还需要做出改变:

func session(session: WCSession, didReceiveUserInfo userInfo: [String : AnyObject]) {

    if let tColorValue = userInfo["TeamColor"] as? String, let matchValue = userInfo["Matchup"] as? String {

        receivedData.append(["TeamColor" : tColorValue , "Matchup" : matchValue])
        ExtensionDelegate.evnts.append(Evnt(dataDictionary: ["TeamColor" : tColorValue , "Matchup" : matchValue]))

        doTable()

    } else {
        print("tColorValue and matchValue are not same as dictionary value")
    }

}

和

func doTable() {

    let extEvnts = ExtensionDelegate.evnts

    self.rowTable.setNumberOfRows(extEvnts.count, withRowType: "rows")

    for (index, evt) in extEvnts.enumerate() {

        if let row = rowTable.rowControllerAtIndex(index) as? TableRowController {

            row.mLabel.setText(evt.eventMatch)
            row.cGroup.setBackgroundColor(colorWithHexString(evt.eventTColor)) 
        } else {
            print("nope")
        }
    }    
}