[Mono.Android] Add Android API-R preview binding (#4327)

Context: https://web.archive.org/web/20200229224026/https://developer.android.com/preview/overview

Android 11 Developer Preview 1 has been released.  The Android 11
Developer Preview Program Overview [Timeline and updates][0] section
suggests the following timeline:

  * Developer Preview 1 in February
  * Developer Preview 2 in March
  * Developer Preview 3 in April
  * Beta 1 in May
  * Beta 2 in June  
    This contains the final APIs and official SDK.
  * Beta 3 and final release sometime in Q3, 2019.

Add support for binding API-R as API-30, with
`$(TargetFrameworkVersion)` v10.0.99.

[0]: https://web.archive.org/web/20200229224026/https://developer.android.com/preview/overview#timeline

Author: gugavaro

build-tools/Xamarin.Android.Tools.BootstrapTasks/Xamarin.Android.Tools.BootstrapTasks/CheckApiCompatibility.cs

@@ -26,6 +26,7 @@ public sealed class CheckApiCompatibility : Task
 			{ "v8.1", "v8.0" },
 			{ "v9.0", "v8.1" },
 			{ "v10.0", "v9.0" },
+			{ "v10.0.99", "v10.0" },
 		};
 
 		static readonly string [] assemblies =

build-tools/xaprepare/xaprepare/ConfigAndData/BuildAndroidPlatforms.cs

@@ -38,6 +38,7 @@ class BuildAndroidPlatforms
 			new AndroidPlatform (apiName: "Oreo",                   apiLevel: 27, platformID: "27",  include: "v8.1",    framework: "v8.1"),
 			new AndroidPlatform (apiName: "Pie",                    apiLevel: 28, platformID: "28",  include: "v9.0",    framework: "v9.0"),
 			new AndroidPlatform (apiName: "Q",                      apiLevel: 29, platformID: "29",  include: "v10.0",   framework: "v10.0"),
+			new AndroidPlatform (apiName: "R",                      apiLevel: 30, platformID: "R",   include: "v10.0.99",  framework: "v10.0.99",  stable: false),
 		};
 
 		public static readonly Dictionary<string, uint> NdkMinimumAPI = new Dictionary<string, uint> {

build-tools/xaprepare/xaprepare/ConfigAndData/Dependencies/AndroidToolchain.cs

@@ -40,6 +40,7 @@ public AndroidToolchain ()
 				new AndroidPlatformComponent ("platform-27_r03",   apiLevel: "27", pkgRevision: "3"),
 				new AndroidPlatformComponent ("platform-28_r04",   apiLevel: "28", pkgRevision: "4"),
 				new AndroidPlatformComponent ("platform-29_r01",   apiLevel: "29", pkgRevision: "1"),
+				new AndroidPlatformComponent ("platform-R_r01",    apiLevel: "R",  pkgRevision: "1"),
 
 				new AndroidToolchainComponent ("docs-24_r01",                                       destDir: "docs", pkgRevision: "1"),
 				new AndroidToolchainComponent ("android_m2repository_r47",                          destDir: Path.Combine ("extras", "android", "m2repository"), pkgRevision: "47.0.0"),

src/Mono.Android/Profiles/api-30.params.txt

@@ -1528,4 +1528,27 @@
   <attr api-since="29" path="/api/package[@name='java.lang']/class[@name='StringBuilder']" name="extends-generic-aware">java.lang.AbstractStringBuilder</attr>
   <!-- We don't need to remove any method from Java.Lang.AbstractStringBuilder because they are all virtual methods -->
 
+  <!-- Api 30 adjustments -->
+  <!-- We need to remove abstract method close from CameraOfflineSession since it is already defined on base abstract class CameraCaptureSession -->
+  <remove-node api-since="30" path="/api/package[@name='android.hardware.camera2']/class[@name='CameraOfflineSession']/method[@name='close' and count(parameter)=0]" />
+
+  <!-- Namespace android.view.inline should be renamed to Android.Views.Inline -->
+  <attr api-since="30" path="/api/package[@name='android.view.inline']" name="managedName">Android.Views.Inline</attr>
+
+  <!-- Google has added getCellIdentity and getCellSignalStrength as abstract method on the base class -->
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoCdma']/method[@name='getCellIdentity' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellIdentity</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoCdma']/method[@name='getCellSignalStrength' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellSignalStrength</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoGsm']/method[@name='getCellIdentity' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellIdentity</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoGsm']/method[@name='getCellSignalStrength' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellSignalStrength</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoLte']/method[@name='getCellIdentity' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellIdentity</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoLte']/method[@name='getCellSignalStrength' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellSignalStrength</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoTdscdma']/method[@name='getCellIdentity' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellIdentity</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoTdscdma']/method[@name='getCellSignalStrength' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellSignalStrength</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoWcdma']/method[@name='getCellIdentity' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellIdentity</attr>
+  <attr api-since="30" path="/api/package[@name='android.telephony']/class[@name='CellInfoWcdma']/method[@name='getCellSignalStrength' and count(parameter)=0]" name="managedReturn">Android.Telephony.CellSignalStrength</attr>
+
+  <!-- We don't support methods that require Actions/Functions with more than 16 arguments -->
+  <remove-node api-since="30" path="/api/package[@name='java.util']/interface[@jni-signature='Ljava/util/Map;']/method[@name='of' and count(parameter)=16]" />
+  <remove-node api-since="30" path="/api/package[@name='java.util']/interface[@jni-signature='Ljava/util/Map;']/method[@name='of' and count(parameter)=18]" />
+  <remove-node api-since="30" path="/api/package[@name='java.util']/interface[@jni-signature='Ljava/util/Map;']/method[@name='of' and count(parameter)=20]" />
 </metadata>

src/Mono.Android/metadata

@@ -375,6 +375,7 @@
 1, android.location,Criteria,setAccuracy,accuracy,Android.Locations.Accuracy
 1, android.location,Criteria,getPowerRequirement,return,Android.Locations.Power
 1, android.location,Criteria,setPowerRequirement,level,Android.Locations.Power
+1, android.location,Criteria,setPowerRequirement,powerRequirement,Android.Locations.Power
 0, android.location,[Interface]GpsStatus.Listener,onGpsStatusChanged,event,Android.Locations.GpsEvent
 0, android.location,Location,convert,outputType,Android.Locations.Format
 1, android.location,[Interface]LocationListener,onStatusChanged,status,Android.Locations.Availability

src/Mono.Android/methodmap.csv

@@ -0,0 +1,5 @@
+Compat issues with assembly Mono.Android:
+CannotAddAbstractMembers : Member 'Android.Telephony.CellInfo.CellIdentity' is abstract in the implementation but is missing in the contract.
+CannotAddAbstractMembers : Member 'Android.Telephony.CellInfo.CellSignalStrength' is abstract in the implementation but is missing in the contract.
+CannotAddAbstractMembers : Member 'Android.Telephony.CellInfo.CellIdentity.get()' is abstract in the implementation but is missing in the contract.
+CannotAddAbstractMembers : Member 'Android.Telephony.CellInfo.CellSignalStrength.get()' is abstract in the implementation but is missing in the contract.