ios 将图像添加到 UIAlertController 中的 UIAlertAction

Add Image to UIAlertAction in UIAlertController

提问by user1079052

I have seen a couple screen shots of a UIAlertControllers with an image on the left of the row but I do not seen it in the documentation. An example visual is Here is the code that I have for my controller right now:

我已经看到了 UIAlertControllers 的几个屏幕截图，在行的左侧有一个图像，但我没有在文档中看到它。视觉的一个例子是下面是我对我的控制器，现在的代码：

UIAlertController * view =   [UIAlertController
                                 alertControllerWithTitle:@"My Title"
                                 message:@"Select you Choice"
                                 preferredStyle:UIAlertControllerStyleActionSheet];
    UIAlertAction* ok = [UIAlertAction
                         actionWithTitle:@"OK"
                         style:UIAlertActionStyleDefault
                         handler:^(UIAlertAction * action)
                         {
                          }];
    [view addAction:ok];
    [self presentViewController:view animated:YES completion:nil];

回答by JP Hribovsek

And that's how it's done:

这就是它的完成方式：

let image = UIImage(named: "myImage")
var action = UIAlertAction(title: "title", style: .default, handler: nil)
action.setValue(image, forKey: "image")
alert.addAction(action)

the image property is not exposed, so there's no guarantee of this working in future releases, but works fine as of now

image 属性未公开，因此无法保证在未来版本中可以正常工作，但目前可以正常工作

回答by dheerendra

UIAlertController * view=   [UIAlertController
                             alertControllerWithTitle:@"Staus ! "
                             message:@"Select your current status"
                             preferredStyle:UIAlertControllerStyleActionSheet];


UIAlertAction* online = [UIAlertAction
                     actionWithTitle:@"Online"
                     style:UIAlertActionStyleDefault
                     handler:^(UIAlertAction * action)
                     {
                         //Do some thing here
                         [view dismissViewControllerAnimated:YES completion:nil];

                     }];
UIAlertAction* offline = [UIAlertAction
                         actionWithTitle:@"Offline"
                         style:UIAlertActionStyleDefault
                         handler:^(UIAlertAction * action)
                         {
                             [view dismissViewControllerAnimated:YES completion:nil];

                         }];
UIAlertAction* doNotDistrbe = [UIAlertAction
                         actionWithTitle:@"Do not disturb"
                         style:UIAlertActionStyleDefault
                         handler:^(UIAlertAction * action)
                         {
                             [view dismissViewControllerAnimated:YES completion:nil];

                         }];
UIAlertAction* away = [UIAlertAction
                               actionWithTitle:@"Do not disturb"
                               style:UIAlertActionStyleDestructive
                               handler:^(UIAlertAction * action)
                               {
                                   [view dismissViewControllerAnimated:YES completion:nil];

                               }];

[online setValue:[[UIImage imageNamed:@"online.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];
[offline setValue:[[UIImage imageNamed:@"offline.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];
[doNotDistrbe setValue:[[UIImage imageNamed:@"DND.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];
[away setValue:[[UIImage imageNamed:@"away.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];





[view addAction:online];
[view addAction:away];
[view addAction:offline];
[view addAction:doNotDistrbe];
[self presentViewController:view animated:YES completion:nil];

回答by PruitIgoe

Try something like this:

尝试这样的事情：

UIAlertView* alert = [UIAlertView alloc] initWithTitle: @"Test Alert" message: @"Alert With Custom View" delegate:nil cancelButtonTitle:@"NO" otherButtonTitles:@"YES", nil];

UIImage* imgMyImage = [UIImage imageNamed:@"myImage.png"];
UIImageView* ivMyImageView = [UIImageView alloc] initWithFrame:CGRectMake(0, 0, imgMyImage.size.width, imgMyImage.size.height)];
[ivMyImageView setImage:imgMyImage];

[alert setValue: ivMyImageView forKey:@"accessoryView"];
[alert show];

Tested this and it works for iOS 7.0

对此进行了测试，它适用于 iOS 7.0

回答by stringCode

You could add an image above the title label by subclassing UIAlertControllerand adding \nto the title string to make space for the UIImageView. You'd have to compute the layout based on the font size. For images in the UIAlertActionuse KVClike so self.setValue(image, forKey: "image"). I would recommend to use an extension that checks for responds(to:). Here is sample implementation.

您可以通过子类化UIAlertController并添加\n到标题字符串来在标题标签上方添加图像，以便为UIImageView. 您必须根据字体大小计算布局。对于像这样UIAlertAction使用的图像。我建议使用检查. 这是示例实现。KVCself.setValue(image, forKey: "image")responds(to:)

回答by Hardik Thakkar

For swift

为迅速

let actionSheet = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
let action = UIAlertAction(title: NSLocalizedString("Share", comment: ""), style: .default, handler: { _ in
        })
let image = UIImage(named: "Temp1")
action.setValue(image?.withRenderingMode(.alwaysOriginal), forKey: "image")
actionSheet.addAction(action)
actionSheet.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
self.present(actionSheet, animated: true, completion: nil)

Note: IMP Line withRenderingMode(.alwaysOriginal)

注意：IMP Line withRenderingMode(.alwaysOriginal)

回答by Dheeraj D

Swift Version:

迅捷版：

actionBtn.setValue(UIImage.init(named: "completeDose"), forKey: "image")

回答by Benny Davidovitz

swift 3 extension , property and convenience init.

swift 3 扩展，属性和便利初始化。

extension UIAlertAction{
    @NSManaged var image : UIImage?

    convenience init(title: String?, style: UIAlertActionStyle,image : UIImage?, handler: ((UIAlertAction) -> Swift.Void)? = nil ){
        self.init(title: title, style: style, handler: handler)
        self.image = image
    }
}

thanks to Shahar Stern for the inspiration

感谢 Shahar Stern 的灵感