chore: ci android x86 and more reliable emulator boot

Author: reime005

.github/workflows/android.yml

@@ -24,8 +24,8 @@ jobs:
 
     - name: Setup Android emulator
       run: |
-        echo y | sudo $ANDROID_HOME/tools/bin/sdkmanager "system-images;android-28;google_apis;x86_64" > /dev/null
-        $ANDROID_HOME/tools/bin/avdmanager -s create avd -n emu -k "system-images;android-28;google_apis;x86_64" -b "x86_64" -c 1G -d 7 -f
+        echo y | sudo $ANDROID_HOME/tools/bin/sdkmanager "system-images;android-27;google_apis;x86" > /dev/null
+        $ANDROID_HOME/tools/bin/avdmanager -s create avd -n emu -k "system-images;android-27;google_apis;x86" -b "x86" -c 1G -d 7 -f
 
     - name: Install node_modules
       working-directory: example/RNBackgroundExample/
@@ -43,7 +43,12 @@ jobs:
       run: |
         export PATH=$PATH:$ANDROID_HOME/platform-tools
         $ANDROID_HOME/emulator/emulator @emu -noaudio -no-boot-anim -netdelay none -accel on -no-snapshot &
-        adb wait-for-device; adb shell 'while [[ -z $(getprop sys.boot_completed) ]]; do sleep 1; done;'; adb shell wm dismiss-keyguard
+
+    - name: Wait for emulator to be ready
+      working-directory: example/RNBackgroundExample/
+      timeout-minutes: 15
+      run: |
+        sh ./wait-for-emulator.sh
 
     - name: Android test
       working-directory: example/RNBackgroundExample/

example/RNBackgroundExample/wait-for-emulator.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+# wait for emulator to be ready
+# thanks to https://gist.github.com/d4vidi/7862d60375b38f8970f824c4ce0ad2a9
+
+echo ""
+echo "[Waiting for launcher to start]"
+LAUNCHER_READY=
+while [[ -z ${LAUNCHER_READY} ]]; do
+    UI_FOCUS=`adb shell dumpsys window windows 2>/dev/null | grep -i mCurrentFocus`
+    echo "(DEBUG) Current focus: ${UI_FOCUS}"
+
+    case $UI_FOCUS in
+    *"Launcher"*)
+        LAUNCHER_READY=true
+    ;;
+    "")
+        echo "Waiting for window service..."
+        sleep 3
+    ;;
+    *"Not Responding"*)
+        echo "Detected an ANR! Dismissing..."
+        adb shell input keyevent KEYCODE_DPAD_DOWN
+        adb shell input keyevent KEYCODE_DPAD_DOWN
+        adb shell input keyevent KEYCODE_ENTER
+    ;;
+    *"Isn't responding"*)
+        echo "Detected an ANR! Dismissing..."
+        adb shell input keyevent KEYCODE_DPAD_DOWN
+        adb shell input keyevent KEYCODE_DPAD_DOWN
+        adb shell input keyevent KEYCODE_ENTER
+    ;;
+    *)
+        echo "Waiting for launcher..."
+        sleep 3
+    ;;
+    esac
+done
+
+echo "Launcher is ready :-)"