Get Device Unqiue ID

Question

Hi,

How can I get the device's unique ID in MAUI?

Thanks,
Jassim

Answer 1

Hello,

How can I get the device's unique ID in MAUI?

For iOS, we cannot get the device's unique ID. iOS puts serious restrictions on unique persistent identifiers because of privacy concerns

For Android, we can use Android.Provider.Settings.Secure to get it.

   public class GetDeviceInfo {  
     
     
     
      public string GetDeviceID() {  
   #if ANDROID  
            var context = Microsoft.Maui.ApplicationModel.Platform.CurrentActivity;  
            string id = Secure.GetString(context.ContentResolver, Secure.AndroidId);  
           return id;  
   #endif  
          return "-1";  
       }  
   }  

Here is recommended way.

If you are attempting to do is ensure that when an application is installed, you can get some unique identifier for that installation. If the app is transferred to a new phone, then the identifier is the same, but if it is un-installed then a new identifier is generated. You can generate GUID, then save or get it in your Preferences like following code. This will ensure a unique identifier for the installed application.

   public App()  
       {  
           InitializeComponent();  
           var id = Preferences.Get("my_id", string.Empty);  
           if (string.IsNullOrWhiteSpace(id)) {  
               id = System.Guid.NewGuid().ToString();  
               Preferences.Set("my_id", id);  
           }  
           MainPage = new AppShell();  
       }  

Best Regards,

Leon Lu

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