Unique ID of MAUI device

Question

Unique ID of MAUI device

Wheelstring 190

Hello IT gurus

I need some unique identifier of MAUI device (platforms: iPhone/Windows/Android/Tizen/MacCatalyst...) like MAC address of device, whatever...

I want answer on this question:

Is it the first (self) app instalation on this device? Yes/No (True/False)

I need solve situation: install(first)-uninstall-install(second)-uninstall-install(second..and..more..)

Thank for ideas, hints!

W

Tags: MAUI, iOS, Windows, Android, C#, MacOS, Tizen, App publishing

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Answer 1

Bruce (SqlWork.com) 77,926 Volunteer Moderator

this is the standard code:

#if ANDROID
    string deviceID = Android.Provider.Settings.Secure.GetString(Platform.CurrentActivity.ContentResolver, Android.Provider.Settings.Secure.AndroidId);
 
#elif IOS
    string deviceID = UIKit.UIDevice.CurrentDevice.IdentifierForVendor.ToString();
#endif

the android id is assigned when the device is first booted, and should remain for the life of the device.

apple is more privacy conscious, so the IOS version does not support your requirement. it is generated when your app is installed, and shared among your apps, but if they are all removed, then the id is removed. a new install will result in a new id.

Wheelstring 190

Hello Bruce

thanks a lot. That's it.

About iOS is not good news :-(

for WINDOWS I will use following code (concatenated MAC addresses)

Thanks a lot one again!

best reagards

Wheelstring

#if WINDOWS

		   string deviceID = string.Empty;

            NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
            foreach (NetworkInterface adapter in adapters)
            {
                deviceID += "*" + adapter.GetPhysicalAddress().ToString();
            }
			deviceID = deviceID.Substring(0, 20);
#endif

Answer 2

Hello

I found solution also for iOS, works good also for Windows (no MAC addresses needed - requied more access rights)... I use SecureStorage class with my own ID (Guid). It is acceptable for my purpose (for testing second instalation...)


			const string KeyID = @"YourSecureStorageKeyID";

        	string CrossPlatformID = await SecureStorage.Default.GetAsync(KeyID);

	    	// first installation ?
        	if (CrossPlatformID == null)
            {
		
				// generate some your id for example random Guid..
				Guid g = new Guid();                
				g = Guid.NewGuid();
                CrossPlatformID = g.ToString();
		
				// store Guid for second instalation 
                await SecureStorage.Default.SetAsync(KeyID, CrossPlatformID);

            }
			else
			{

				// second and more installations...

			}

regards

all the best

W

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Unique ID of MAUI device

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