Can I change app icon programmatically

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There is a new solution for this situation.

You can use 

setAlternateIconName(_:completionHandler:)

iOS 10.3 is out with xcode 8.3.

10.3+

Update:

Usage is pretty simple, the key is to find out plist usage and note that you can not load assets from xcassets ( at least didnt work for me ). You need to add your icon files to project and prefer 180×180 images for quality.

You need to use “Icon files (iOS 5)”, new Icon files does not work.

One last thing, when you change icon on a button click it will popup a Alert window that says ‘You have changed the icon for “IcoTest”.’

enter image description here

//ViewController.swift
@IBAction func ico1Click(_ sender: Any) {
    if UIApplication.shared.supportsAlternateIcons{
        UIApplication.shared.setAlternateIconName("Icon2", completionHandler: { (error) in
            print(error ?? "")
        })
    }else{
        print("NO NO")
    }
}

//Info.plist
<key>CFBundleIcons</key>
<dict>
    <key>CFBundleAlternateIcons</key>
    <dict>
        <key>Icon1</key>
        <dict>
            <key>CFBundleIconFiles</key>
            <array>
                <string>alternater1_180x180</string>
            </array>
            <key>UIPrerenderedIcon</key>
            <false/>
        </dict>
        <key>Icon2</key>
        <dict>
            <key>CFBundleIconFiles</key>
            <array>
                <string>alternater2_180x180</string>
            </array>
        </dict>
    </dict>
</dict>

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