Question

我有一个UIImagePickerController和2个按钮。当我点击按钮1时，我想设置按钮1的图像。当我点击按钮2时，我想设置按钮2的图像。我已经使用UIImagePickerController成功设置按钮1的图像但是没有这样做按钮2.这是我的代码：

var whichButton: Int = 0

func displayImagePicker(){

    let imagePicker = UIImagePickerController()
    imagePicker.delegate = self
    imagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
    imagePicker.allowsEditing = false

    self.presentViewController(imagePicker, animated: true, completion: nil)

}

@IBAction func chooseImageOne(sender: AnyObject) {

    displayImagePicker()

    whichButton = 1

}

@IBAction func chooseImageTwo(sender: AnyObject) {

    displayImagePicker()

    whichButton = 2

}

func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) {

    self.dismissViewControllerAnimated(true, completion: nil)

    if whichButton == 1 {

        self.imageOne.setImage(image, forState: UIControlState.Normal)

    } else if whichButton == 2 {

        self.imageTwo.setImage(image, forState: UIControlState.Normal)

    }
}

正如你所看到的，我尝试使用var来跟踪我正在点击的按钮。我不确定我在didFinishPickingImage函数中所做的是对的。我很快乐，如果有人能说出一些亮点，它真的会很棒！提前谢谢

Answer 1

您的代码功能正确。看起来您的MyOAuth2MethodSecurityExpressionHandler extends OAuth2MethodSecurityExpressionHandler功能未正确连接，或第二个按钮的ResponseEntity。您可以使用按钮处理程序或调试器中的print语句轻松检查这一点。

Answer 2

我亲自在xcode上检查了你的代码及其正确。请查看您是否已将IBOutlet提供给self.imageTwo按钮，并检查IBAction，即touchupInside for imageTwo按钮。否则一切都很好

1个UIImagePickerController和2个按钮

2 个答案: