[release/8.0-rc2] [CI][Android] Build mono runtime for Android on PRs

eng/pipelines/runtime.yml

@@ -556,6 +556,47 @@ extends:
           extraBuildArgs: /p:AotHostArchitecture=x64 /p:AotHostOS=$(_hostedOS)
           alwaysRun: ${{ variables.isRollingBuild }}
 
+      #
+      # Android devices
+      # Build the whole product using Mono and run libraries tests
+      #
+      - template: /eng/pipelines/common/platform-matrix.yml
+        parameters:
+          jobTemplate: /eng/pipelines/common/global-build-job.yml
+          helixQueuesTemplate: /eng/pipelines/libraries/helix-queues-setup.yml
+          buildConfig: Release
+          runtimeFlavor: mono
+          platforms:
+          - android_arm
+          - android_arm64
+          variables:
+            # map dependencies variables to local variables
+            - name: librariesContainsChange
+              value: $[ dependencies.evaluate_paths.outputs['SetPathVars_libraries.containsChange'] ]
+            - name: monoContainsChange
+              value: $[ dependencies.evaluate_paths.outputs['SetPathVars_mono_excluding_wasm.containsChange'] ]
+          jobParameters:
+            testGroup: innerloop
+            nameSuffix: AllSubsets_Mono
+            buildArgs: -s mono+libs+libs.tests+host+packs -c $(_BuildConfig) /p:ArchiveTests=true /p:RunSmokeTestsOnly=true /p:EnableAdditionalTimezoneChecks=true
+            timeoutInMinutes: 480
+            condition: >-
+              or(
+                eq(dependencies.evaluate_paths.outputs['SetPathVars_libraries.containsChange'], true),
+                eq(dependencies.evaluate_paths.outputs['SetPathVars_mono_excluding_wasm.containsChange'], true),
+                eq(dependencies.evaluate_paths.outputs['SetPathVars_installer.containsChange'], true),
+                eq(variables['isRollingBuild'], true))
+            # extra steps, run tests
+            extraStepsTemplate: /eng/pipelines/libraries/helix.yml
+            extraStepsParameters:
+              creator: dotnet-bot
+              testRunNamePrefixSuffix: Mono_$(_BuildConfig)
+              condition: >-
+                or(
+                eq(variables['librariesContainsChange'], true),
+                eq(variables['monoContainsChange'], true),
+                eq(variables['isRollingBuild'], true))
+
       #
       # iOS/tvOS devices - Full AOT + AggressiveTrimming to reduce size
       # Build the whole product using Mono and run libraries tests