Swift：如何从动态单元获取交换机的修改 [英] Swift: How can I catch a modification of a switch from dynamic cell

问题描述

我需要抓住动态单元格中的交换机的修改。
该应用程序有动态单元格列出所有找到的所有BLE设备。

BLE设备应该能够通过开关打开/关闭。 >

现在是问题，我无法通过Outlet或Action来抓住切换。

如何捕捉从动态单元格更改。

UI的问题看起来像这样：
具有动态单元格的UI

我发现了我可以抓住水龙头的点，但是我不能使用我的方法，因为在类类型UITableViewCell CoreBluetooth不支持，我无法填写CoreBluetooth方法的属性。

  import UIKit 
 
 
 class remoteCellTableViewCell：UITableViewCell {
 
 // MARK：属性
 @IBOutlet weak var remoteCellLabel：UILabel！ 
 @IBOutlet weak var remoteCellImageView：UIImageView！ 
 @IBOutlet weak var remoteCellSwitch：UISwitch！ 
 @IBOutlet weak var remoteCellPower：UIProgressView！ 
 
覆盖func awakeFromNib（）{
 super.awakeFromNib（）
 
} 
 
 //这里我可以捕获开关TAP我不能使用CoreBluetooh在这个类
 @IBAction func onOff（发件人：AnyObject）{
 
 
 //对象从类的连接和发送到外部
 var connection：ViewController = ViewController（）
 
 connection.viewDidLoad（）
 
 
 // CANT FILLOUT属性由于丢失COREBLUETOOTH支持
 //  - > 
 connection.centralManagerDidUpdateState（<＃T ## central：CBCentralManager ## CBCentralManager＃>）
 connection.centralManager（<＃T ## central：CBCentralManager ## CBCentralManager＃> didDiscoverPeripheral： <＃T ## CBPeripheral＃>，advertisingData：< #T ## [String：AnyObject]＃>，RSSI：<＃T ## NSNumber＃>）
 connection.centralManager（< ;＃T ## central：CBCentralManager ## CBCentralManager＃> didConnectPeripheral：<＃T ## CBPeripheral＃>）
 connection.centralManager（<＃T ## central：CBCentralManager ## CBCentralManager＃> ;，didDiscoverPeripheral：<＃T ## CBPeripheral＃>，advertisingData：< #T ## [String：AnyObject]＃>，RSSI：<＃T ## NSNumber＃>）
连接.centralManager（<＃T ## central：CBCentralManager ## CBCentralManager＃>，didConnectPeripheral：<＃T ## CBPeripheral＃>）
 connection.peripheral（<＃T ## peripheral：CBPeripheral＃ ＃CBPeripheral＃> didDiscoverServices：<＃T ## NSError？＃>）
 connection.peripheral（<＃T ## peripheral：CBPeripheral ## CBPeripheral＃>，didDiscoverCharacteristicsForService：<＃T ## CBService＃>，error：<＃T ## NSError？＃>）
 connection.peripheral（<＃T ## peripheral：CBPeripheral ## CBPeripheral＃>，didUpdateValueForCharacteristic：<＃T ## CBCharacteristic＃>，error：<＃T ## NSError？＃>）
 connection.peripheral（<＃T ## peripheral：CBPeripheral ## CBPeripheral＃>，didWriteValueForDescriptor：<＃T ##CB描述符＃>，错误：<＃T ## NSError？＃>）
 
 //  - > 
} 
覆盖func setSelected（selected：Bool，animated：Bool）{
 super.setSelected（selected，animated：animated）
 
 //配置视图所选状态
} 
 
} 
  

解决方案

使用标签获取开关状态。这里是我用来获取按钮点击动作的代码。像这样

在您的 cellForRowAtIndexPath 中分配标签到按钮。

  cell.absentButton.tag = indexPath.row 
  

在你的按钮操作获取按钮的行

 如果let button =发件人为？ UIButton {
如果button.selected {
 //设置选择
 let row = sender.tag 
} 
} 
  

从这里你可以得到哪个开关被改变。

I need to catch the modification of a switch in a dynamic cell. The app has dynamic cells to list all BLE devices which where found.

The BLE device should be able to turn on/off via switch.

Now is the problem, I can't catch the switch via Outlet or Action.

How is it possible to catch a change from a dynamic cell.

UI for the problem looks like that: UI with dynamic cell

I found the point where I can catch the tap but there I can't use my methods because in a class type UITableViewCell CoreBluetooth is not supported and I can't fill out the attribute for the CoreBluetooth methods.

import UIKit


class remoteCellTableViewCell: UITableViewCell{

    //MARK: Properties
    @IBOutlet weak var remoteCellLabel: UILabel!
    @IBOutlet weak var remoteCellImageView: UIImageView!
    @IBOutlet weak var remoteCellSwitch: UISwitch!
    @IBOutlet weak var remoteCellPower: UIProgressView!

    override func awakeFromNib() {
        super.awakeFromNib()

    }

    //HERE I CAN CATCH THE SWITCH TAP BUT I CAN'T USE CoreBluetooh IN THIS CLASS
    @IBAction func onOff(sender: AnyObject) {


        //OBJECT FROM THE CLASS FOR CONNECT AND SEND TO THE PERIPHERAL
        var connection: ViewController = ViewController()

        connection.viewDidLoad()


        //CANT FILLOUT THE ATTRIBUTES BECAUSE OF MISSING COREBLUETOOTH SUPPORT
    //-->        
        connection.centralManagerDidUpdateState(<#T##central: CBCentralManager##CBCentralManager#>)
        connection.centralManager(<#T##central: CBCentralManager##CBCentralManager#>, didDiscoverPeripheral: <#T##CBPeripheral#>, advertisementData: <#T##[String : AnyObject]#>, RSSI: <#T##NSNumber#>)
        connection.centralManager(<#T##central: CBCentralManager##CBCentralManager#>, didConnectPeripheral: <#T##CBPeripheral#>)
        connection.centralManager(<#T##central: CBCentralManager##CBCentralManager#>, didDiscoverPeripheral: <#T##CBPeripheral#>, advertisementData: <#T##[String : AnyObject]#>, RSSI: <#T##NSNumber#>)
        connection.centralManager(<#T##central: CBCentralManager##CBCentralManager#>, didConnectPeripheral: <#T##CBPeripheral#>)
        connection.peripheral(<#T##peripheral: CBPeripheral##CBPeripheral#>, didDiscoverServices: <#T##NSError?#>)
        connection.peripheral(<#T##peripheral: CBPeripheral##CBPeripheral#>, didDiscoverCharacteristicsForService: <#T##CBService#>, error: <#T##NSError?#>)
        connection.peripheral(<#T##peripheral: CBPeripheral##CBPeripheral#>, didUpdateValueForCharacteristic: <#T##CBCharacteristic#>, error: <#T##NSError?#>)
        connection.peripheral(<#T##peripheral: CBPeripheral##CBPeripheral#>, didWriteValueForDescriptor: <#T##CBDescriptor#>, error: <#T##NSError?#>)

    //->
    }
    override func setSelected(selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)

        // Configure the view for the selected state
    }

    }

解决方案

Use Tags to get the switch state. here is the code that i used to get the button click action. Like this

In your cellForRowAtIndexPath assign tag to the button.

cell.absentButton.tag = indexPath.row

In your button action get the row of the button

if let button = sender as? UIButton {
  if button.selected {
    // set selected
    let row = sender.tag
 }
}

From this you can get which switch is changed.

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