Native Application Icon. First you need an image version of the app icon. Then export it as a normal svg but make sure you export each icon with the same.
Then drag and drop your app logo over the appicon image. Application icon is the unique identification of the app. However you can use any icon stored inside such a file to set it as the icon used by a folder a library or a shortcut.
Open your ejected react native app the ios version in xcode and locate the aforementioned image xcassets folder.
Then export it as a normal svg but make sure you export each icon with the same. Icons stored inside dll files cannot be copied and saved elsewhere at least not unless you use a special app that can extract icons from dll files. Here i am going to create and add a square icon and a round circle icon to react native app. In most cases the user remembers the application icon instead of the application name.
