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swift - 无法将数据传递给 viewController

问题描述

我有两个数组将区域名称和网站地址存储为字符串。此外，我还有 9 个区域按钮。当您按下其中一个按钮时，它将根据您按下的区域按钮显示不同的图片。这是我的代码：

@IBAction func westfjordsBtn(_ sender: UIButton) {

    vcContainer[0].address=imgAddress[0]
    vcContainer[0].areaName=areaName[0]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[0], animated: true)
}
@IBAction func northBtn(_ sender: UIButton) {
    vcContainer[1].address=imgAddress[1]
    vcContainer[1].areaName=areaName[1]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[1], animated: true)
}
@IBAction func northeastBtn(_ sender: UIButton) {

        vcContainer[2].address=imgAddress[2]
    vcContainer[2].areaName=areaName[2]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[2], animated: true)
}
@IBAction func eastBtn(_ sender: UIButton) {

    vcContainer[3].address=imgAddress[3]
    vcContainer[3].areaName=areaName[3]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[3], animated: true)
}
@IBAction func southeastBtn(_ sender: UIButton) {

        vcContainer[4].address=imgAddress[4]
    vcContainer[4].areaName=areaName[4]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[4], animated: true)
}
@IBAction func entireBtn(_ sender: UIButton) {

        vcContainer[5].address=imgAddress[5]
    vcContainer[5].areaName=areaName[5]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[5], animated: true)
}
@IBAction func southBtn(_ sender: UIButton) {

        vcContainer[6].address=imgAddress[6]
    vcContainer[6].areaName=areaName[6]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[6], animated: true)
}
@IBAction func westBtn(_ sender: UIButton) {

        vcContainer[7].address=imgAddress[7]
    vcContainer[7].areaName=areaName[7]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[7], animated: true)
}
@IBAction func westsouthBtn(_ sender: UIButton) {

        vcContainer[8].address=imgAddress[8]
    vcContainer[8].areaName=areaName[8]
    loadViewIfNeeded()
    self.navigationController?.pushViewController(self.vcContainer[8], animated: true)
}
override func viewDidLoad() {
    super.viewDidLoad()
    for i in 0 ..< vcContainer.count {
         vcContainer[i] = self.storyboard?.instantiateViewController(withIdentifier: "AreaRoadDetailViewController") as! AreaRoadDetailViewController
    }

}

但是，代码是从第一个按钮函数中复制的，只是更改了数组索引。只有第一个按钮可以正常工作，当我按下其他按钮时，它总是无法将 imgAddress 传递给 AreaRoadDetailViewController。

在AreaRoadDetailViewController中，总是显示地址为nil，但区域名称可以正确显示。为什么这么狂野？只有一个按钮可以工作！我该如何解决？谢谢你

标签： swiftnavigationcontrollerpass-data

解决方案

也许您已经选择了所有按钮并拖动到您的class，这样只会设置第一个按钮。您必须分别为每个按钮设置一个方法。在检查器中检查按钮的链接。同时删除不必要的链接和方法。

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