ios - 在 UIAlertController 中将图像添加到 UIAlertAction

Question

我在行的左侧看到了几个 UIAlertControllers 的屏幕截图，但我在文档中没有看到它。一个示例视觉是这是我现在为我的控制器拥有的代码：

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];

score 120 · Accepted Answer

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)

image 属性没有暴露，所以不能保证在以后的版本中可以正常工作，但现在可以正常工作

score 26 · Accepted Answer

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];

score 11 · Accepted Answer

UIAlertController您可以通过子类化并添加\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。对于图像在UIAlertAction使用中KVC喜欢这样self.setValue(image, forKey: "image")。我建议使用检查responds(to:). 这是示例实现。

score 11 · Accepted Answer

为了迅速

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)

注意：IMP Line withRenderingMode(.alwaysOriginal)

score 10 · Accepted Answer

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];

对此进行了测试，它适用于 iOS 7.0

在此处输入图像描述

score 1 · Accepted Answer

1

斯威夫特版本：

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

于 2018-06-07T09:37:14.463 回答

score -1 · Accepted Answer

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
    }
}

感谢 Shahar Stern 的启发

ios - 在 UIAlertController 中将图像添加到 UIAlertAction

7 回答 7

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