如何获取iOS当前使用的备选应用图标名称？

Hey there! I’ve dealt with this exact problem before, so let me share what worked for me.

先确认你的Info.plist配置是否完整 #

There are two easy-to-miss settings that break this functionality:

• Make sure you’ve added the UIApplicationSupportsAlternateIcons key in your Info.plist and set its value to YES — this is the master switch for enabling alternate icons, and without it, the system won’t recognize your alternate icon setup at all.
• Double-check your CFBundleIcons structure:
  • You need a CFBundlePrimaryIcon entry (even if it just points to your default icon files) so the system knows what the "original" icon is.
  • Each entry under CFBundleAlternateIcons must have a valid CFBundleIconName and CFBundleIconFiles array pointing to your icon assets.

使用官方API获取当前图标 #

Forget those old workaround methods — Apple added a native, reliable property for this in iOS 10.0+, which is safe to use in production:

Swift 代码示例：

import UIKit

func getCurrentAppIconName() -> String? {
    return UIApplication.shared.alternateIconName
}

// 使用方式
if let iconName = getCurrentAppIconName() {
    print("当前使用的是备选图标：\(iconName)")
} else {
    print("当前使用的是默认图标")
}

Objective-C 代码示例：

#import <UIKit/UIKit.h>

NSString *getCurrentAppIconName() {
    return [UIApplication sharedApplication].alternateIconName;
}

// 使用方式
NSString *currentIcon = getCurrentAppIconName();
if (currentIcon) {
    NSLog(@"当前使用的是备选图标：%@", currentIcon);
} else {
    NSLog(@"当前使用的是默认图标");
}

常见排查点 #

• 大小写敏感: The icon name you use in code must exactly match the CFBundleIconName in your Info.plist — even a single uppercase/lowercase mismatch will cause the API to return nil.
• 缓存问题: If you’ve just updated your Info.plist, try deleting the app from your device/simulator, cleaning your Xcode build folder (Cmd+Shift+K), and rebuilding from scratch.
• iOS版本: This API works on iOS 10.0 and later. If you need to support way older versions, you’ll have to use a different approach, but realistically, most users are on iOS 13+ now.

Give these steps a shot, and you should be able to get the current icon name without any trouble!

内容的提问来源于stack exchange，提问作者jQ Goo