Add emulator-launcher.

.github/workflows/workflow.yml

@@ -11,7 +11,7 @@ jobs:
     timeout-minutes: 20
     strategy:
       matrix:
-        api-level: [21, 29]
+        api-level: [21, 23, 29]
     steps:
     - name: checkout
       uses: actions/checkout@v1
@@ -32,3 +32,4 @@ jobs:
         target: default
         abi: x86
         headless: true
+        disable-animations: true