chore: Adjust for android deprecated members

src/Uno.UI/UI/Xaml/ApplicationActivity.Android.cs

@@ -282,6 +282,8 @@ namespace Windows.UI.Xaml
 			Windows.UI.Xaml.Application.Current.OnSystemThemeChanged();
 		}
 
+#pragma warning disable CS0618 // deprecated members
+#pragma warning disable CS0672 // deprecated members
 		public override void OnBackPressed()
 		{
 			var handled = Windows.UI.Core.SystemNavigationManager.GetForCurrentView().RequestBack();
@@ -290,6 +292,8 @@ namespace Windows.UI.Xaml
 				base.OnBackPressed();
 			}
 		}
+#pragma warning restore CS0618 // deprecated members
+#pragma warning restore CS0672 // deprecated members
 
 		protected override void OnNewIntent(Intent intent)
 		{

src/Uno.UI/UI/Xaml/UIElement.Android.cs

@@ -417,6 +417,8 @@ namespace Windows.UI.Xaml
 				return jObject;
 			}
 
+#pragma warning disable CS0618 // deprecated members
+
 			var type = dpValue.GetType();
 			if (type == typeof(bool))
 			{
@@ -424,9 +426,7 @@ namespace Windows.UI.Xaml
 			}
 			else if (type == typeof(sbyte))
 			{
-#pragma warning disable CS0618 // Byte.Byte(sbyte) is obsolete in API 31
 				return new Java.Lang.Byte((sbyte)dpValue);
-#pragma warning restore CS0618 // Byte.Byte(sbyte) is obsolete in API 31
 			}
 			else if (type == typeof(char))
 			{
@@ -434,9 +434,7 @@ namespace Windows.UI.Xaml
 			}
 			else if (type == typeof(short))
 			{
-#pragma warning disable CS0618 // Short.Short(short) is obsolete in API 31
 				return new Java.Lang.Short((short)dpValue);
-#pragma warning restore CS0618 // Short.Short(short) is obsolete in API 31
 			}
 			else if (type == typeof(int))
 			{
@@ -461,6 +459,7 @@ namespace Windows.UI.Xaml
 
 			// If all else fails, just return the string representation of the DP's value
 			return new Java.Lang.String(dpValue.ToString());
+#pragma warning restore CS0618 // deprecated members
 		}
 
 #if DEBUG

src/Uno.UWP/Devices/Enumeration/Internal/Providers/Midi/MidiDeviceClassProviderBase.Android.cs

@@ -1,4 +1,6 @@
 #if __ANDROID__
+#pragma warning disable CS0618 // obsolete members
+
 using System;
 using System.Collections.Generic;
 using System.Linq;

src/Uno.UWP/Devices/Haptics/SimpleHapticsController.Android.cs

@@ -1,4 +1,5 @@
 #nullable enable
+#pragma warning disable CS0618 // obsolete members
 
 using System;
 using System.Collections.Generic;

src/Uno.UWP/Security/Authentication/Web/WebAuthenticationBrokerRedirectActivity.Android.cs

@@ -1,4 +1,6 @@
 #nullable enable
+#pragma warning disable CS0618 // obsolete members
+
 using Android.App;
 using Android.Content.PM;
 using Android.Content;