Xamarin / MAUI

using Android;

using Android.App;

using Android.Content.PM;

using Android.OS;

using AndroidX.Core.App;

namespace SICPA_Connexions

{

    [Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]

    public class MainActivity : MauiAppCompatActivity

    {

        private static String[] PERMISSIONS_STORAGE = {

            Manifest.Permission.ReadExternalStorage,

            Manifest.Permission.WriteExternalStorage,

            Manifest.Permission.AccessFineLocation,

            Manifest.Permission.AccessCoarseLocation,

            Manifest.Permission.AccessLocationExtraCommands,

            Manifest.Permission.BluetoothScan,

            Manifest.Permission.BluetoothConnect,

            Manifest.Permission.BluetoothPrivileged

    };

        private static String[] PERMISSIONS_BLUETOOTH = {

            Manifest.Permission.AccessFineLocation,

            Manifest.Permission.AccessCoarseLocation,

            Manifest.Permission.AccessLocationExtraCommands,

            Manifest.Permission.BluetoothScan,

            Manifest.Permission.BluetoothConnect,

            Manifest.Permission.BluetoothPrivileged

    };

        protected override void OnCreate(Bundle savedInstanceState)

        {

            base.OnCreate(savedInstanceState);

            Permission permission1 = ActivityCompat.CheckSelfPermission(this, Manifest.Permission.WriteExternalStorage);

            Permission permission2 = ActivityCompat.CheckSelfPermission(this, Manifest.Permission.BluetoothScan);

            if (permission1 != Permission.Granted)

            {

                // We don't have permission so prompt the user

                ActivityCompat.RequestPermissions(this, PERMISSIONS_STORAGE, 1);

            } else if (permission2 != Permission.Granted)

            {

                ActivityCompat.RequestPermissions(this, PERMISSIONS_BLUETOOTH, 1);

            }

        }

    }

}