Use linux to run Android tests.

Author: freakboy3742

.github/workflows/ci.yml

@@ -55,17 +55,17 @@ jobs:
           - backend: linux-system
             runs-on: ubuntu-latest
             python-version: "system"
-            pre-command: "sudo apt-get update -y && sudo apt-get install -y python3-gi python3-gi-cairo gir1.2-gtk-3.0 python3-dev libgirepository1.0-dev libcairo2-dev pkg-config"
+            pre-command: "sudo apt-get install -qq python3-gi python3-gi-cairo gir1.2-gtk-3.0 python3-dev libgirepository1.0-dev libcairo2-dev pkg-config"
             briefcase-target: "linux system"
 
           # - backend: linux-appimage
           #   runs-on: ubuntu-latest
-          #   pre-command: "sudo apt-get update -y && sudo apt-get install -y python3-gi python3-gi-cairo gir1.2-gtk-3.0 python3-dev libgirepository1.0-dev libcairo2-dev pkg-config libfuse2"
+          #   pre-command: "sudo apt-get install -y python3-gi python3-gi-cairo gir1.2-gtk-3.0 python3-dev libgirepository1.0-dev libcairo2-dev pkg-config libfuse2"
           #   briefcase-target: "linux appimage"
 
           - backend: linux-flatpak
             runs-on: ubuntu-latest
-            pre-command: "sudo apt-get update -y && sudo apt-get install -y python3-gi python3-gi-cairo gir1.2-gtk-3.0 python3-dev libgirepository1.0-dev libcairo2-dev pkg-config flatpak flatpak-builder"
+            pre-command: "sudo apt-get install -qq python3-gi python3-gi-cairo gir1.2-gtk-3.0 python3-dev libgirepository1.0-dev libcairo2-dev pkg-config flatpak flatpak-builder"
             briefcase-target: "linux flatpak"
 
           - backend: windows-VisualStudio
@@ -82,8 +82,16 @@ jobs:
             briefcase-run-args: ' -d "iPhone SE (3rd generation)"'
 
           - backend: android
-            runs-on: macos-latest
+            runs-on: ubuntu-latest
             briefcase-target: "android"
+            pre-command: |
+              # check if virtualization is supported...
+              sudo apt install -qq --no-install-recommends cpu-checker coreutils && echo "CPUs=$(nproc --all)" && kvm-ok
+              # allow access to KVM to run the emulator
+              echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' \
+                | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+              sudo udevadm control --reload-rules
+              sudo udevadm trigger --name-match=kvm
             briefcase-run-args: " -d '{\"avd\":\"beePhone\"}' --Xemulator=-no-window --Xemulator=-no-snapshot --Xemulator=-no-audio --Xemulator=-no-boot-anim --shutdown-on-exit"
 
         exclude: