33

是否可以将图像添加到UIActionSheet如中所示的按钮UIDocumentInteractionController?如果是这样,请让我知道它是如何完成的。

4

12 回答 12

71

可以将图像(确切地说:图标或符号)添加到 a UIActionSheet(或 a UIAlertView)的按钮,而无需加载图像文件或摆弄(子)视图。在这些类中,按钮由它们的标题指定,它们是字符串。所以很明显使用符号,也可以通过字符串指定。我想出的第一个是使用unicode 符号

然后我发现其中一些在 iOS 上被渲染为漂亮的图标,并且在 Mac OS 上的字符查看器中也可以看到几个符号。因此,这些符号实际上可以在可以指定字符串的任何地方使用。

这种方法的缺点是:

  • 您仅限于预定义的符号。
  • 并非所有符号都按应有的方式呈现(例如\u29C9)。
  • 在不同的 iOS 版本(例如\U0001F533iOS 5 和 6)上,某些符号的外观可能会有所变化。

以下是一些有趣的符号:

如果您想快速检查符号的外观(至少在 Mac OS 上),您可以使用 Calculator。在模拟器中检查:例如\u2B1C在 Calculator 10.7.1 中不是图标。

截图:

UIActionSheet

UIActionSheet

按钮标题:

@"\U0001F6A9 \U0001F4CC \u26F3 \u2690 \u2691 \u274F \u25A4 Test"
@"\U0001F4D6 \U0001F30E \U0001F30F \u25A6 \U0001F3C1 \U0001F332 \U0001F333 \U0001F334 Test"

UIAlertView

在此处输入图像描述

按钮标题:

@"\u26A0 Yes"

UITableViewCell带有复选框和其他图标

UITableViewCell

于 2012-03-19T23:39:06.720 回答
27

试试这个方法,希望对你有帮助。

UIActionSheet * action = [[UIActionSheet alloc] 
                      initWithTitle:@"Title" 
                      delegate:self 
                      cancelButtonTitle:@"Cancel" 
                      destructiveButtonTitle:nil 
                      otherButtonTitles:@"",nil];

[[[action valueForKey:@"_buttons"] objectAtIndex:0] setImage:[UIImage imageNamed:@"yourImage.png"] forState:UIControlStateNormal];

[[[action valueForKey:@"_buttons"] objectAtIndex:0] setImage:[UIImage imageNamed:@"yourImage_Highlighted.png"] forState:UIControlStateHighlighted];
于 2011-05-26T10:19:41.117 回答
6

标准 UIActionSheet 不支持图像。

向 中添加图像的一种方法UIActionSheet是将子视图添加到UIActionSheet. 只需UIActionSheetDelegate像这样实现方法 willPresentActionSheet::

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet {
     UIImageView* buttonImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"picturename.png"]];
     // Set the frame of the ImageView that it's over the button.
     [actionSheet addSubview:buttonImage];
     [buttonImage release]; // only if you don't need this anymore
}

我不确定图像是否会响应触摸,但您可以构建一个UIActionSheet类似的UIDocumentInteractionController.

于 2011-05-26T08:40:26.113 回答
5

这是一种方法: https ://github.com/levey/LeveyPopListView 在此处输入图像描述

于 2012-07-18T05:43:55.577 回答
4
- (IBAction)actionSheetButtonPressed:(id)sender {
UIAlertController * view=   [UIAlertController
                             alertControllerWithTitle:@"Share "
                             message:@"Select your current status"
                             preferredStyle:UIAlertControllerStyleActionSheet];
UIAlertAction* online = [UIAlertAction
                         actionWithTitle:@"Facebook"
                         style:UIAlertActionStyleDefault
                         handler:^(UIAlertAction * action)
                         {
                             //Do some thing here
                             [view dismissViewControllerAnimated:YES completion:nil];
                         }];
UIAlertAction* offline = [UIAlertAction
                          actionWithTitle:@"Google+"
                          style:UIAlertActionStyleDefault
                          handler:^(UIAlertAction * action)
                          {
                              [view dismissViewControllerAnimated:YES completion:nil];
                          }];
UIAlertAction* doNotDistrbe = [UIAlertAction
                               actionWithTitle:@"LinkedIn"
                               style:UIAlertActionStyleDefault
                               handler:^(UIAlertAction * action)
                               {
                                   [view dismissViewControllerAnimated:YES completion:nil];
                               }];
UIAlertAction* away = [UIAlertAction
                       actionWithTitle:@"Twitter"
                       style:UIAlertActionStyleDestructive
                       handler:^(UIAlertAction * action)
                       {
                           [view dismissViewControllerAnimated:YES completion:nil];

                       }];
UIAlertAction* cancel = [UIAlertAction
                     actionWithTitle:@"Cancel"
                     style:UIAlertActionStyleDefault
                     handler:^(UIAlertAction * action)
                     {
                     }];

[online setValue:[[UIImage imageNamed:@"facebook.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];
[offline setValue:[[UIImage imageNamed:@"google-plus.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];
[doNotDistrbe setValue:[[UIImage imageNamed:@"linkedin.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];
[away setValue:[[UIImage imageNamed:@"twitter.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] forKey:@"image"];

[view addAction:online];
[view addAction:away];
[view addAction:offline];
[view addAction:doNotDistrbe];

[view addAction:cancel];

[self presentViewController:view animated:YES completion:nil];

}

于 2015-12-09T06:16:14.110 回答
3

您可以通过键“ _buttons ”从 actionSheet 对象获取操作按钮标题并设置按钮图像。

UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:@"Title" delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Facebook", @"Twitter", @"Google +", @"E - mail", @"Send Message",nil];

[[[actionSheet valueForKey:@"_buttons"] objectAtIndex:0] setImage:[UIImage imageNamed:@"fb_icon1.png"] forState:UIControlStateNormal];
[[[actionSheet valueForKey:@"_buttons"] objectAtIndex:1] setImage:[UIImage imageNamed:@"tweet_icon1.png"] forState:UIControlStateNormal];
[[[actionSheet valueForKey:@"_buttons"] objectAtIndex:2] setImage:[UIImage imageNamed:@"googleplus_icon1.png"] forState:UIControlStateNormal];
[[[actionSheet valueForKey:@"_buttons"] objectAtIndex:3] setImage:[UIImage imageNamed:@"mail_icon.png"] forState:UIControlStateNormal];
[[[actionSheet valueForKey:@"_buttons"] objectAtIndex:4] setImage:[UIImage imageNamed:@"message_icon.png"] forState:UIControlStateNormal];

for (UIView *subview in actionSheet.subviews) {
    if ([subview isKindOfClass:[UIButton class]]) {
        UIButton *button = (UIButton *)subview;
        [button setTitleColor:[UIColor darkGrayColor] forState:UIControlStateNormal];
    }
}

[actionSheet showInView:self.view];
于 2014-09-04T10:29:54.067 回答
2

对于 iOS 8,请参考这里

if( [UIAlertController class] ){

    UIAlertController *view     = [UIAlertController alertControllerWithTitle:@"Main Title" 
                                                                      message:@"What do you want to do?"
                                                               preferredStyle:UIAlertControllerStyleActionSheet];

    UIAlertAction *firstAA       = [UIAlertAction actionWithTitle:@"Beep Beep"
                                                           style:UIAlertActionStyleDefault
                                                         handler:^( UIAlertAction *action ){

                                                             [view dismissViewControllerAnimated:YES
                                                                                      completion:nil];
                                                         }];
    [firstAA setValue:[UIImage imageNamed:@"your-icon-name"] forKey:@"image"];
    [view addAction:firstAA];

    UIAlertAction *cancelAA     = [UIAlertAction actionWithTitle:@"Cancel"
                                                           style:UIAlertActionStyleCancel
                                                         handler:^( UIAlertAction *action ){

                                                             [self deselectTableViewRow];

                                                             [view dismissViewControllerAnimated:YES
                                                                                      completion:nil];
                                                         }];
    [view addAction:cancelAA];

    [self presentViewController:view
                       animated:YES
                     completion:nil];
}
else {

    UIActionSheet *sheet    = [[UIActionSheet alloc] initWithTitle:@"What do you want to do?"
                                                          delegate:(id)self
                                                 cancelButtonTitle:nil
                                            destructiveButtonTitle:nil
                                                 otherButtonTitles:nil];

    [sheet addButtonWithTitle:@"title"];

    [[[sheet valueForKey:@"_buttons"] objectAtIndex:0] setImage:[UIImage imageNamed:@"your-icon-name.png"] forState:UIControlStateNormal];

    sheet.cancelButtonIndex = [sheet addButtonWithTitle:@"Cancel"];
    [sheet showInView:self.view];
}
于 2015-02-25T07:26:19.917 回答
2

我刚刚创建了一个类来模拟 UIActionSheet 的外观,它使用支持每一行的图像和文本的表格单元格。它还使用块进行交互,支持 iPhone 和 iPad,从 iPad 上的 UITabBarItem 弹出和多个工作表的排队。仍在开发中,但可以随意从 Github 克隆它:

http://github.com/azplanlos/SIActionSheet

用法很简单,举个例子:

SIActionSheet* mySheet = [SIActionSheet actionSheetWithTitle:@"Action Sheet title"
    andObjects:[NSArray arrayWithObjects:
        [SIActionElement actionWithTitle:@"Item 1"
            image:[UIImage imageNamed:@"image"]
            andAction:^{NSLog(@"action 1");}]
    , nil]
    completition:^(int num) {
        NSLog(@"pressed %i", num);
    } cancel:^{NSLog(@"canceled");}];

mySheet.followUpSheet = anotherSheet;
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
        [mySheet show];
else
        [mySheet showFromTabBarItem:item inTabBar:tabBar];

如果您遇到任何问题,请告诉我。我希望这可以帮助很多像我一样遇到同样问题的人......

于 2013-05-19T16:14:34.163 回答
1

我知道答案很晚,但我找到了另一种在操作表中显示图像的方法:

self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"Select Image:" delegate:self cancelButtonTitle:@"Cancel"destructiveButtonTitle:nil otherButtonTitles: @"Image1", @"Image2", @"Image3", @"Image4", @"Image5", @"Image6", @"Image7", @"Image8",@"Image9", @"Image10", @"Image11", @"Image12", @"Image13", @"Image14", @"Image15", nil];

self.actionSheet.tag = 1;
for (id button in [self.actionSheet valueForKey:@"_buttons"])
 {
     UIImageView* buttonImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[button titleForState:UIControlStateNormal]]];
     [buttonImage setFrame:CGRectMake(5, 5,35,35)];
     [button addSubview:buttonImage];
 }

 [self.actionSheet showInView:[UIApplication sharedApplication].keyWindow];
于 2014-02-26T08:51:45.223 回答
1

我发现这个类别扩展在 ios7.1 中可以将图像/图标添加到 UIActionSheet 中的按钮,但有一些警告......

@interface UIActionSheet (GSBActionSheetButtons)
- (void)buttonAtIndex:(NSUInteger)index setImage:(UIImage *)image forState:(UIControlState)state;
@end

@implementation UIActionSheet (GSBActionSheetButtons)
- (void)buttonAtIndex:(NSUInteger)index setImage:(UIImage *)image forState:(UIControlState)state
{
    for (UIView* view in self.subviews) {
        if ([view isKindOfClass:[UIButton class]]) {
            if (index-- == 0) {
                UIButton *button = (UIButton*)view;
                [button setImage:image forState:state];
                button.imageView.contentMode = UIViewContentModeScaleAspectFit;
                button.imageEdgeInsets = UIEdgeInsetsMake(2,0,2,0);
                break;
            }
        }
    }
}

并使用它:

[self.sharePopup buttonAtIndex:2 setImage:[UIImage imageNamed:@"twitter.png"] forState:UIControlStateNormal];

警告:

  • 尽管 UIActionSheet 确实正确地将您的图像自动调整为按钮的正确高度,但它似乎并没有相应地改变 imageview宽度; 因此需要 UIViewContentModeScaleAspectFit 来防止图像被压扁。然而,imageview 框架的宽度仍然是原始的全尺寸,所以如果你的图像很大(或更准确地说是宽),那么你会在居中(缩小)图像和按钮文本之间得到一个恼人的间隙。我没有办法解决这个问题;甚至以编程方式向图像视图添加显式宽度=高度约束似乎被忽略了!?[有任何想法吗?]。最终结果,请确保您的图像开始时的高度正确(例如,在 iPhone 4S 上约为 45 像素),否则按钮图像和文本之间的差距会越来越大。

  • 更严重的是,一旦您向按钮添加图像,UIActionSheet 似乎会自动使按钮的文本变为粗体(!)。我不知道为什么也不知道如何防止这种情况[任何想法?]

  • 最后,此解决方案依赖于 UIActionSheet 的子视图与按钮的索引顺序相同。这对于少数按钮来说是正确的,但是(显然)当你的 UIActionSheet 中有很多项目时,Apple 对索引感到困惑[但无论如何你都会在 actionSheet:clickedButtonAtIndex: 中遇到问题:当你试图弄清楚点击了哪个按钮...]

哦,imageEdgeInsets: 是可选的 - 我在按钮内将每个图像插入几个像素,这样图像就不会垂直相互接触。

[意见:鉴于上述奇怪之处,我觉得苹果真的不希望人们在他们的行动表上胡闹。在某些时候,您可能不得不硬着头皮实现自己的模式弹出窗口;这些 UIActionSheets 只能容纳这么多的粗暴处理......]

于 2014-08-23T03:19:36.633 回答
1
    NSString* strUrl=[MLControl shared].currentServerUrl;
    for( MLServerUrl *title in [MLControl shared].arrServerUrl)  {
        NSString* strShow=title.name;
        if ([strUrl isEqualToString: title.url]) {
            strShow=[NSString stringWithFormat:@"√ %@",strShow];
        }else{
            strShow=[NSString stringWithFormat:@"  %@",strShow];
        }

        [chooseImageSheet addButtonWithTitle:strShow];
    }

   // [[[chooseImageSheet valueForKey:@"_buttons"] objectAtIndex:0] setImage:[UIImage imageNamed:@"ic_check_black_18dp.png"] forState:UIControlStateNormal];
    chooseImageSheet.actionSheetStyle = UIActionSheetStyleDefault;
    [chooseImageSheet showFromRect:btnRc inView:sender animated:YES];
于 2014-12-18T06:05:44.347 回答
0

从 iOS 8.0 开始,您可以使用UIAlertController. 在UIAlertController中,每个按钮项都知道UIAlertAction相应的添加。

你可以看看我的回答

于 2016-08-19T17:50:38.543 回答