[build] Remove MONOANDROID, NET, and NETCOREAPP directives

src/Mono.Android/Android.App/Activity.cs

@@ -12,7 +12,6 @@ partial class Activity {
 			return this.FindViewById (id)!.JavaCast<T> ();
 		}
 
-#if NET7_0_OR_GREATER || (NET6_0_OR_GREATER && ANDROID_33) || ANDROID_34
 		// See: https://cs.android.com/android/platform/superproject/+/master:frameworks/base/core/java/android/app/Activity.java;l=3430
 		public T RequireViewById<T> (int id)
 			where T : Android.Views.View
@@ -23,7 +22,6 @@ public T RequireViewById<T> (int id)
 			}
 			return view;
 		}
-#endif // NET7_0_OR_GREATER || (NET6_0_OR_GREATER && ANDROID_33) || ANDROID_34
 
 		public void StartActivityForResult (Type activityType, int requestCode)
 		{

src/Mono.Android/Android.Runtime/AndroidEnvironment.cs

@@ -332,9 +332,7 @@ static IWebProxy GetDefaultProxy ()
 		// This is invoked by
 		// System.Net.Http.dll!System.Net.Http.HttpClient.cctor
 		// DO NOT REMOVE
-#if !MONOANDROID1_0
 		[DynamicDependency (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor, typeof (Xamarin.Android.Net.AndroidMessageHandler))]
-#endif
 		static object GetHttpMessageHandler ()
 		{
 			if (httpMessageHandlerType is null) {
@@ -357,14 +355,12 @@ static object GetHttpMessageHandler ()
 
 		static bool IsAcceptableHttpMessageHandlerType (Type handlerType)
 		{
-#if !MONOANDROID1_0
 			if (Extends (handlerType, "System.Net.Http.HttpClientHandler, System.Net.Http")) {
 				// It's not possible to construct HttpClientHandler in this method because it would cause infinite recursion
 				// as HttpClientHandler's constructor calls the GetHttpMessageHandler function
 				Logger.Log (LogLevel.Warn, "MonoAndroid", $"The type {handlerType.AssemblyQualifiedName} cannot be used as the native HTTP handler because it is derived from System.Net.Htt.HttpClientHandler. Use a type that extends System.Net.Http.HttpMessageHandler instead.");
 				return false;
 			}
-#endif
 			if (!Extends (handlerType, "System.Net.Http.HttpMessageHandler, System.Net.Http")) {
 				Logger.Log (LogLevel.Warn, "MonoAndroid", $"The type {handlerType.AssemblyQualifiedName} set as the default HTTP handler is invalid. Use a type that extends System.Net.Http.HttpMessageHandler.");
 				return false;

src/Mono.Android/Android.Runtime/AndroidRuntime.cs

@@ -33,11 +33,9 @@ internal AndroidRuntime (IntPtr jnienv,
 					classLoader_loadClass,
 					jniAddNativeMethodRegistrationAttributePresent))
 		{
-#if NETCOREAPP
 			// This is not ideal, but we need to set this while the runtime is initializing but we can't do it directly from the `JNIEnvInit.Initialize` method, since
 			// it lives in an assembly that does not reference Mono.Android.  So we do it here, because this class is instantiated by JNIEnvInit.Initialize.
 			AndroidEnvironmentInternal.UnhandledExceptionHandler = AndroidEnvironment.UnhandledException;
-#endif
 		}
 
 		public override void FailFast (string? message)
@@ -268,11 +266,7 @@ protected override IEnumerable<Type> GetTypesForSimpleReference (string jniSimpl
 		{
 			string? j = JNIEnv.TypemapManagedToJava (type);
 			if (j != null) {
-				return
-#if NET
-					GetReplacementTypeCore (j) ??
-#endif  // NET
-					j;
+				return GetReplacementTypeCore (j) ?? j;
 			}
 			if (JNIEnvInit.IsRunningOnDesktop) {
 				return JavaNativeTypeManager.ToJniName (type);
@@ -283,9 +277,8 @@ protected override IEnumerable<Type> GetTypesForSimpleReference (string jniSimpl
 		protected override IEnumerable<string> GetSimpleReferences (Type type)
 		{
 			string? j = JNIEnv.TypemapManagedToJava (type);
-#if NET
 			j   = GetReplacementTypeCore (j) ?? j;
-#endif  // NET
+
 			if (JNIEnvInit.IsRunningOnDesktop) {
 				string? d = JavaNativeTypeManager.ToJniName (type);
 				if (j != null && d != null) {
@@ -301,7 +294,6 @@ protected override IEnumerable<string> GetSimpleReferences (Type type)
 			return Array.Empty<string> ();
 		}
 
-#if NET
 		protected override IReadOnlyList<string>? GetStaticMethodFallbackTypesCore (string jniSimpleReference)
 		{
 			ReadOnlySpan<char>  name    = jniSimpleReference;
@@ -383,7 +375,6 @@ protected override IEnumerable<string> GetSimpleReferences (Type type)
 					TargetJniMethodInstanceToStatic = method.is_static,
 			};
 		}
-#endif  // NET
 
 		delegate Delegate GetCallbackHandler ();
 

src/Mono.Android/Android.Runtime/AndroidRuntimeInternal.cs

@@ -1,4 +1,4 @@
-#if !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#if INSIDE_MONO_ANDROID_RUNTIME
 using System;
 using System.Reflection;
 
@@ -7,11 +7,7 @@ namespace Android.Runtime
 	public static class AndroidRuntimeInternal
 	{
 		internal static MethodInfo? mono_unhandled_exception_method = null;
-#if NETCOREAPP
 		internal static Action<Exception> mono_unhandled_exception = RuntimeNativeMethods.monodroid_debugger_unhandled_exception;
-#else
-		internal static Action<Exception>? mono_unhandled_exception = null;
-#endif
 
 #pragma warning disable CS0649 // Field is never assigned to.  This field is assigned from monodroid-glue.cc.
 		internal static volatile bool BridgeProcessing; // = false
@@ -38,4 +34,4 @@ public static void WaitForBridgeProcessing ()
 		}
 	}
 }
-#endif // !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#endif // INSIDE_MONO_ANDROID_RUNTIME

src/Mono.Android/Android.Runtime/JNIEnv.cs

@@ -103,27 +103,9 @@ static void ManualJavaObjectDispose (Java.Lang.Object obj)
 			GC.SuppressFinalize (obj);
 		}
 
-#if !NETCOREAPP
-		static Action<AppDomain, UnhandledExceptionEventArgs> AppDomain_DoUnhandledException = null!;
-#endif // ndef NETCOREAPP
-
 		static void Initialize ()
 		{
 			AndroidRuntimeInternal.InitializeUnhandledExceptionMethod ();
-#if !NETCOREAPP
-			if (AppDomain_DoUnhandledException == null) {
-				var ad_due = typeof (AppDomain)
-					.GetMethod ("DoUnhandledException",
-					            bindingAttr:  BindingFlags.NonPublic | BindingFlags.Instance,
-					            binder:       null,
-					            types:        new []{typeof (UnhandledExceptionEventArgs)},
-					            modifiers:    null);
-				if (ad_due != null) {
-					AppDomain_DoUnhandledException  = (Action<AppDomain, UnhandledExceptionEventArgs>) Delegate.CreateDelegate (
-						typeof (Action<AppDomain, UnhandledExceptionEventArgs>), ad_due);
-				}
-			}
-#endif // ndef NETCOREAPP
 		}
 
 		internal static void PropagateUncaughtException (IntPtr env, IntPtr javaThreadPtr, IntPtr javaExceptionPtr)
@@ -150,14 +132,7 @@ internal static void PropagateUncaughtException (IntPtr env, IntPtr javaThreadPt
 				Logger.Log (LogLevel.Info, "MonoDroid", "UNHANDLED EXCEPTION:");
 				Logger.Log (LogLevel.Info, "MonoDroid", javaException.ToString ());
 
-#if !NETCOREAPP
-				var args  = new UnhandledExceptionEventArgs (innerException ?? javaException, isTerminating: true);
-				// Disabled until Linker error surfaced in https://github.com/xamarin/xamarin-android/pull/4302#issuecomment-596400025 is resolved
-				//AppDomain.CurrentDomain.DoUnhandledException (args);
-				AppDomain_DoUnhandledException?.Invoke (AppDomain.CurrentDomain, args);
-#else // ndef NETCOREAPP
 				RuntimeNativeMethods.monodroid_unhandled_exception (innerException ?? javaException);
-#endif // def NETCOREAPP
 			} catch (Exception e) {
 				Logger.Log (LogLevel.Error, "monodroid", "Exception thrown while raising AppDomain.UnhandledException event: " + e.ToString ());
 			}

src/Mono.Android/Android.Runtime/JNIEnvInit.cs

@@ -51,9 +51,7 @@ internal struct JnienvInitializeArgs {
 
 		static AndroidRuntime? androidRuntime;
 
-#if NETCOREAPP
 		[UnmanagedCallersOnly]
-#endif
 		static unsafe void RegisterJniNatives (IntPtr typeName_ptr, int typeName_len, IntPtr jniClass, IntPtr methods_ptr, int methods_len)
 		{
 			string typeName = new string ((char*) typeName_ptr, 0, typeName_len);
@@ -75,9 +73,7 @@ static unsafe void RegisterJniNatives (IntPtr typeName_ptr, int typeName_len, In
 			((AndroidTypeManager)androidRuntime!.TypeManager).RegisterNativeMembers (jniType, type, methods);
 		}
 
-#if NETCOREAPP
 		[UnmanagedCallersOnly]
-#endif
 		internal static unsafe void Initialize (JnienvInitializeArgs* args)
 		{
 			IntPtr total_timing_sequence = IntPtr.Zero;
@@ -88,19 +84,13 @@ internal static unsafe void Initialize (JnienvInitializeArgs* args)
 			gref_gc_threshold = args->grefGcThreshold;
 
 			jniRemappingInUse = args->jniRemappingInUse;
-#if NETCOREAPP
 			MarshalMethodsEnabled = args->marshalMethodsEnabled;
-#endif
 			java_class_loader = args->grefLoader;
 
 			mid_Class_forName = new JniMethodInfo (args->Class_forName, isStatic: true);
 
 			LocalRefsAreIndirect = args->localRefsAreIndirect == 1;
 
-#if MONOANDROID1_0
-			Mono.SystemDependencyProvider.Initialize ();
-#endif
-
 			bool androidNewerThan10 = args->androidSdkVersion > 10;
 			BoundExceptionType = (BoundExceptionType)args->ioExceptionType;
 			androidRuntime = new AndroidRuntime (args->env, args->javaVm, androidNewerThan10, args->grefLoader, args->Loader_loadClass, args->jniAddNativeMethodRegistrationAttributePresent != 0);
@@ -121,16 +111,12 @@ internal static unsafe void Initialize (JnienvInitializeArgs* args)
 				}
 			}
 
-#if !MONOANDROID1_0
 			SetSynchronizationContext ();
-#endif
 		}
 
-#if !MONOANDROID1_0
 		// NOTE: prevents Android.App.Application static ctor from running
 		[MethodImpl (MethodImplOptions.NoInlining)]
 		static void SetSynchronizationContext () =>
 			SynchronizationContext.SetSynchronizationContext (Android.App.Application.SynchronizationContext);
-#endif
 	}
 }

src/Mono.Android/Android.Runtime/JNINativeWrapper.g.cs

@@ -9,11 +9,7 @@ public static partial class JNINativeWrapper
 		static bool _unhandled_exception (Exception e)
 		{
 			if (Debugger.IsAttached || !JNIEnvInit.PropagateExceptions) {
-#if NETCOREAPP
 				AndroidRuntimeInternal.mono_unhandled_exception?.Invoke (e);
-#else
-				JNIEnvInit.mono_unhandled_exception?.Invoke (e);
-#endif
 				return false;
 			}
 			return true;

src/Mono.Android/Android.Runtime/JNINativeWrapper.g.tt

@@ -257,11 +257,7 @@ namespace Android.Runtime
 		static bool _unhandled_exception (Exception e)
 		{
 			if (Debugger.IsAttached || !JNIEnvInit.PropagateExceptions) {
-#if NETCOREAPP
 				AndroidRuntimeInternal.mono_unhandled_exception?.Invoke (e);
-#else
-				JNIEnvInit.mono_unhandled_exception?.Invoke (e);
-#endif
 				return false;
 			}
 			return true;

src/Mono.Android/Android.Runtime/LogCategories.cs

@@ -1,4 +1,4 @@
-#if !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#if INSIDE_MONO_ANDROID_RUNTIME
 using System;
 
 namespace Android.Runtime
@@ -20,4 +20,4 @@ internal enum LogCategories {
 		Netlink   = 1 << 9,
 	}
 }
-#endif // !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#endif // INSIDE_MONO_ANDROID_RUNTIME

src/Mono.Android/Android.Runtime/LogLevel.cs

@@ -1,4 +1,4 @@
-#if !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#if INSIDE_MONO_ANDROID_RUNTIME
 namespace Android.Runtime
 {
 	// Keep in sync with the LogLevel enum in
@@ -15,4 +15,4 @@ internal enum LogLevel {
 		Silent  = 0x08
 	}
 }
-#endif // !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#endif // INSIDE_MONO_ANDROID_RUNTIME

src/Mono.Android/Android.Runtime/PreserveAttribute.cs

@@ -32,9 +32,7 @@
 
 namespace Android.Runtime {
 
-#if NETCOREAPP
 	[Obsolete ("Please use [System.Diagnostics.CodeAnalysis.DynamicDependencyAttribute]")]
-#endif  // NETCOREAPP
 	[AttributeUsage (
 		AttributeTargets.Class
 		| AttributeTargets.Struct

src/Mono.Android/Android.Runtime/RuntimeConstants.cs

@@ -1,9 +1,9 @@
-#if !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#if INSIDE_MONO_ANDROID_RUNTIME
 namespace Android.Runtime
 {
 	internal static class RuntimeConstants
 	{
 		public const string InternalDllName = "xa-internal-api";
 	}
 }
-#endif // !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#endif // INSIDE_MONO_ANDROID_RUNTIME

src/Mono.Android/Android.Runtime/RuntimeNativeMethods.cs

@@ -1,4 +1,4 @@
-#if !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#if INSIDE_MONO_ANDROID_RUNTIME
 using System;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
@@ -76,13 +76,12 @@ internal static class RuntimeNativeMethods
 
 		[DllImport (RuntimeConstants.InternalDllName, CallingConvention = CallingConvention.Cdecl)]
 		internal static extern int _monodroid_max_gref_get ();
-#if NETCOREAPP
+
 		[MethodImplAttribute(MethodImplOptions.InternalCall)]
 		internal static extern void monodroid_unhandled_exception (Exception javaException);
 
 		[MethodImplAttribute(MethodImplOptions.InternalCall)]
 		internal static extern unsafe void monodroid_debugger_unhandled_exception (Exception e);
-#endif
 	}
 }
-#endif // !NETCOREAPP || INSIDE_MONO_ANDROID_RUNTIME
+#endif // INSIDE_MONO_ANDROID_RUNTIME

src/Mono.Android/Android.Views/View.cs

@@ -28,7 +28,6 @@ public bool PerformAccessibilityAction (GlobalAction action, Bundle arguments)
 			return this.FindViewById (id).JavaCast<T> ();
 		}
 
-#if NET7_0_OR_GREATER || (NET6_0_OR_GREATER && ANDROID_33) || ANDROID_34
 		// See: https://cs.android.com/android/platform/superproject/+/master:frameworks/base/core/java/android/view/View.java;l=25322
 		public T RequireViewById<T> (int id)
 			where T : Android.Views.View
@@ -39,7 +38,6 @@ public T RequireViewById<T> (int id)
 			}
 			return view;
 		}
-#endif //NET7_0_OR_GREATER || (NET6_0_OR_GREATER && ANDROID_33) || ANDROID_34
 
 		public bool Post (Action action)
 		{
@@ -91,7 +89,7 @@ public bool FitsSystemWindows ()
 		}
 #endif
 
-#if NET && ANDROID_34
+#if ANDROID_34
 		[global::System.Runtime.Versioning.ObsoletedOSPlatform ("android30.0", "These flags are deprecated. Use WindowInsetsController instead.")]
 		public SystemUiFlags SystemUiFlags {
 			get => (SystemUiFlags) SystemUiVisibility;

src/Mono.Android/Android.Views/WindowManagerLayoutParams.cs

@@ -4,7 +4,7 @@ namespace Android.Views
 {
 	partial class WindowManagerLayoutParams
 	{
-#if NET && ANDROID_34
+#if ANDROID_34
 		[global::System.Runtime.Versioning.ObsoletedOSPlatform ("android30.0", "These flags are deprecated. Use WindowInsetsController instead.")]
 		public SystemUiFlags SystemUiFlags {
 			get => (SystemUiFlags) SystemUiVisibility;

src/Mono.Android/Android/LinkerSafeAttribute.cs

@@ -2,9 +2,7 @@
 
 namespace Android
 {
-#if NETCOREAPP
 	[Obsolete ("For .NET 6+, please use: [assembly: global::System.Reflection.AssemblyMetadata(\"IsTrimmable\", \"True\")]")]
-#endif  // NETCOREAPP
 	[AttributeUsage (AttributeTargets.Assembly)]
 	public sealed class LinkerSafeAttribute : Attribute
 	{

src/Mono.Android/Java.Interop/JavaTypeParametersAttribute.cs

@@ -1,26 +1,8 @@
 using System;
 
-#if NET
 using System.Runtime.CompilerServices;
 
 // PublicApiAnalyzers doesn't like TypeForwards
 #pragma warning disable RS0016 // Symbol is not part of the declared API
 [assembly: TypeForwardedTo (typeof (Java.Interop.JavaTypeParametersAttribute))]
 #pragma warning restore RS0016 // Symbol is not part of the declared API
-
-#else   // !NET
-
-namespace Java.Interop
-{
-	public class JavaTypeParametersAttribute : Attribute
-	{
-		public JavaTypeParametersAttribute (string [] typeParameters)
-		{
-			TypeParameters = typeParameters;
-		}
-
-		public string [] TypeParameters { get; set; }
-	}
-}
-
-#endif  // !NET