sharee.bike-App/TINK/TINK.Android/MainActivity.cs

using Android.App;
using Android.Content;
using Android.Content.PM;
using Android.Content.Res;
using Android.OS;
using Android.Util;
using Firebase;
using Java.Interop;
using Plugin.Permissions;
using Xamarin.Forms.Platform.Android.AppLinks;

namespace TINK.Droid
{
    [Activity(Label = "Sharee", Icon = "@drawable/sharee", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]

    [IntentFilter(new[] { Intent.ActionView },
              Categories = new[] { Intent.ActionView, Intent.CategoryBrowsable, Intent.CategoryDefault },
              DataScheme = "https",
              DataHost = "sharee.bike",
              DataPathPrefix = "/sharee",
              AutoVerify = true)]

    [IntentFilter(new[] { Intent.ActionView },
              Categories = new[] { Intent.ActionView, Intent.CategoryBrowsable, Intent.CategoryDefault },
              DataScheme = "http",
              DataHost = "sharee.bike",
              DataPathPrefix = "/sharee",
              AutoVerify = true)]

    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
    {
        private void initFontScale()
        {
            Configuration configuration = Resources.Configuration;
            configuration.FontScale = (float)1;
            //0.85 small, 1 standard, 1.15 big，1.3 more bigger ，1.45 supper big 
            DisplayMetrics metrics = new DisplayMetrics();
            WindowManager.DefaultDisplay.GetMetrics(metrics);
            metrics.ScaledDensity = configuration.FontScale * metrics.Density;
            BaseContext.Resources.UpdateConfiguration(configuration, metrics);
        }
        protected override void OnCreate(Bundle bundle)
        {
            initFontScale();

            TabLayoutResource = Resource.Layout.Tabbar;
            ToolbarResource = Resource.Layout.Toolbar;

            base.OnCreate(bundle);

            global::Xamarin.Forms.Forms.Init(this, bundle);

            FirebaseApp.InitializeApp(this);
            AndroidAppLinks.Init(this);

            // Initialize xamarin.essentials, see https://docs.microsoft.com/en-us/xamarin/essentials/get-started?tabs=macos%2Candroid.
            Xamarin.Essentials.Platform.Init(this, bundle);

            // Required for initialization of Maps, see https://developer.xamarin.com/guides/xamarin-forms/user-interface/map/
            Xamarin.FormsGoogleMaps.Init(this, bundle);

            // Required for initialization of binding package, see  https://github.com/nuitsjp/Xamarin.Forms.GoogleMaps.Bindings.
            Xamarin.FormsGoogleMapsBindings.Init();

            // Get version name of app.
            Context context = ApplicationContext;
            new Model.Device.AppInfo(context.PackageManager.GetPackageInfo(context.PackageName, 0).VersionName);

            Xamarin.Forms.Forms.ViewInitialized += (object sender, Xamarin.Forms.ViewInitializedEventArgs e) =>
            {
                if (!string.IsNullOrWhiteSpace(e.View.AutomationId))
                {
                    e.NativeView.ContentDescription = e.View.AutomationId;
                }
            };

            LoadApplication(new App());
        }

        /// <summary>
        /// Handles opening the dialog to request for permissions.
        /// </summary>
        public override void OnRequestPermissionsResult(int requestCode, string[] permissions, Android.Content.PM.Permission[] grantResults)
        {
            if (App.PermissionsService.GetType() == typeof(TINK.Services.Permissions.Essentials.Permissions))
            {
                Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);
            }
            else if (App.PermissionsService.GetType() == typeof(TINK.Services.Permissions.Plugin.Permissions))
            {
                // Bug in 3.0.244 and earlier versions of sharee.bike app: Call of PermissionsImplementation.Current.OnRequestedPermission result was missing.
                // see https://dev.azure.com/TeilRad/sharee.bike%20Buchungsplattform/_workitems/edit/136 for further details.
                PermissionsImplementation.Current.OnRequestPermissionsResult(requestCode, permissions, grantResults);
            }

            base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
        }

        [Export("TapStation")]
        public void TapStation(string stationNr)
        {
            BackdoorMethodHelpers.DoTapPage(stationNr);
        }
    }
}