Swift-自定义UITableViewCell委托给UIViewController只有一个协议可以工作 [英] Swift- custom UITableViewCell delegate to UIViewController only one protocol works

问题描述

在应用程序中，我有自己的UIViewController符合的自定义协议。我有一个自定义的tableViewCell类，并在那里有UIImageView和UITextView。我出列后将单元格的委托设置为UIViewController。但是，只有一个自定义协议进行回调（imagepicker协议）。

In the application, I have custom protocols that my UIViewController conforms to. I have a custom tableViewCell class and have UIImageView and UITextView in there. I set the cell's delegate to the UIViewController after dequeuing. However only one of the custom protocols makes the callback (imagepicker protocol).

protocol customProtocol1{
    func pickImage(myInt: Int)
}
protocol customProtocol2{
    func protocol2 (myInt: Int)
}

class controller1: UIViewController, UITableViewDelegate, customProtocol1, customProtocol2  {
    func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1
    }

    func tableView(tableView: UITableView, numberOfRowsInSection section:Int) -> Int {
        return 3
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
        let cell = tableView.dequeReusableCellWithIdentifier("customCell",    forIndexPath: indexPath) as! CustomTableCellClass
        cell.delegate = self
        return cell
   }
    func pickImage ( myInt: Int){
        print("This line prints")
   }

   func protocol2 (myInt: Int){
        print ("This line doesn't print")


   }
}

这里是customTableCellClass代码：

And here's the customTableCellClass code:

class CustomTableCellClass: UITableViewCell, UITextFieldDelegate, UITextViewDelegate {
    var imageDelegate: customProtocol1?
    @IBAction func pickImage( sender: AnyObject) {
        imageDelagate?.pickImage(205)
    }

    var somethingElseDelegate: customProcotol2?
    @IBActon func clickOnButton( sender: AnyObject) {
        print("this line prints")
        somethingElseDelegate?.protocol2(2)
    }

   override func awakeFromNib(){
        super.awakeFromNib()
   }
}

我的问题是，为什么第一个协议得到回调但第二个没有？

My question is, why does the first protocol get callbacks but second does not?

推荐答案

从我看到的您的代码，您只需设置一个代理，将您的代码更改为 cellForRowAtIndexPath 至

From what I see in your code, you only set one delegate, change your code in cellForRowAtIndexPath to

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
    let cell = tableView.dequeReusableCellWithIdentifier("customCell",    forIndexPath: indexPath) as! CustomTableCellClass
    cell.imageDelegate = self
    cell.somethingElseDelegate = self
    return cell
}

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