如何在ios中获取当前的应用程序图标

Question

有没有办法在可可触摸应用程序中获取当前的应用程序图标？谢谢.

Answer 1

接受的答案对我不起作用,我正在使用Xcode 5的Images.xcassets方法存储应用程序图标.这个修改对我有用:

UIImage *appIcon = [UIImage imageNamed: [[[[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIcons"] objectForKey:@"CFBundlePrimaryIcon"] objectForKey:@"CFBundleIconFiles"]  objectAtIndex:0]];

如有疑问,只需使用lldb浏览主要包的infoDictionary.

Answer 2

我的答案完全基于moosgummi's,但返回了UIImage.

UIImage *appIcon = [UIImage imageNamed: [[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIconFiles"] objectAtIndex:0]];

所述UIImage自动选择合适的版本(正常,@2x,~ipad,~ipad@2x或任何未来的后缀).(顺便说一句,难道你不是只是讨厌识别图像版本的这个愚蠢的方案吗？它刚刚失控.感谢上帝的资产目录!)

Answer 3

这是一个Swift 4.x && 3.x扩展名,UIApplication用于获取应用程序图标.您可以根据从iconFiles阵列中提取的图标路径的位置来选择是获取最小或最大的图标.

extension UIApplication {
    var icon: UIImage? {
        guard let iconsDictionary = Bundle.main.infoDictionary?["CFBundleIcons"] as? NSDictionary,
            let primaryIconsDictionary = iconsDictionary["CFBundlePrimaryIcon"] as? NSDictionary,
            let iconFiles = primaryIconsDictionary["CFBundleIconFiles"] as? NSArray,
            // First will be smallest for the device class, last will be the largest for device class
            let lastIcon = iconFiles.lastObject as? String,
            let icon = UIImage(named: lastIcon) else {
                return nil
        }

        return icon
    }
}

要访问该图标,请调用以下内容:

let icon = UIApplication.shared.icon

对于奖励积分,如果您的应用需要,您甚至可以制作两个变量以获得最小和最大的图标.

Answer 4

适用于Swift 4.1，并将其扩展为Bundle。

extension Bundle {
    public var icon: UIImage? {
        if let icons = infoDictionary?["CFBundleIcons"] as? [String: Any],
            let primaryIcon = icons["CFBundlePrimaryIcon"] as? [String: Any],
            let iconFiles = primaryIcon["CFBundleIconFiles"] as? [String],
            let lastIcon = iconFiles.last {
            return UIImage(named: lastIcon)
        }
        return nil
    }
}

要在应用中使用，请致电Bundle.main.icon。

Answer 5

这是在info.plist中设置图标的方式,

//try doing NSLog(@"%@",[[NSBundle mainBundle] infoDictionary]);

 CFBundleIcons =     {
        CFBundlePrimaryIcon =         {
            CFBundleIconFiles =             (
                "icon.png",//App icon added by you
                "icon@2x.png"//App icon in retina added by you
            );
            UIPrerenderedIcon = 1;
        };
    };

如果您想获取应用程序图标,请使用以下代码:

UIImage *appIcon = [UIImage imageNamed: [[[[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIcons"] objectForKey:@"CFBundlePrimaryIcon"] objectForKey:@"CFBundleIconFiles"] objectAtIndex:0]];

PS:UIImage会自动为视网膜显示选择合适的图标.

我希望它有所帮助!!

Answer 6

如果您使用资产目录,那么您可以简单地使用:

UIImage* appIcon = [UIImage imageNamed:@"AppIcon60x60"];

资产目录似乎标准化了应用程序图标的文件名.

当然,如果您需要列出捆绑中的所有应用程序图标,您可以在CFBundleIconFiles信息词典的分支中查找它.

使用KVC,您可以轻松地在一行代码中获得:

NSArray* allIcons = [[[NSBundle mainBundle] infoDictionary] valueForKeyPath:@"CFBundleIcons.CFBundlePrimaryIcon.CFBundleIconFiles"];

生成的数组将包含捆绑包中可用的所有应用程序图标名称.任何这些名称都可用于检索图标+[UIImage imageNamed:]

<__NSCFArray 0x15d54260>(
    AppIcon29x29,
    AppIcon40x40,
    AppIcon60x60
)

Answer 7

这很容易,因为当前图标的文件名在Info.plist中设置:

NSString *filePath = [[NSString alloc] initWithString:[[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIconFiles"] objectAtIndex:0]];

如果您想选择高分辨率版本,您应该使用:

NSString *filePath = nil;    
for (NSString *fileName in [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIconFiles"]) {
    if ([fileName rangeOfString:@"@2x"].location != NSNotFound) {
        filePath = [[NSString alloc] initWithString:fileName];
    }
}

Answer 8

因为我花了一点时间才研究出来,这是一个有效的Swift解决方案.

    let primaryIconsDictionary = NSBundle.mainBundle().infoDictionary?["CFBundleIcons"]?["CFBundlePrimaryIcon"] as? NSDictionary
    let iconFiles = primaryIconsDictionary!["CFBundleIconFiles"] as NSArray
    let lastIcon = iconFiles.lastObject as NSString //last seems to be largest, use first for smallest
    let theIcon = UIImage(named: lastIcon)

    let iconImageView = UIImageView(image: theIcon)