introduce emulator and adb port to start script

scripts/start-android.sh

@@ -15,6 +15,7 @@ NDK_VERSION=${ANDROID_NDK:-"27.2.12479018"}
 AVD_EMULATOR_NAME="sentry_android_${ARCH}"
 IMAGE=${ANDROID_IMAGE:-"system-images;android-${API_LEVEL};google_apis;${ARCH}"}
 NDK_PACKAGE=${NDK_IMAGE:-"ndk;${NDK_VERSION}"}
+adb start-server
 
 echo "List installed images..."
 $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --list
@@ -25,6 +26,7 @@ echo "ARCH = $ARCH"
 echo "API_LEVEL = $API_LEVEL"
 echo "AVD_EMULATOR_NAME = $AVD_EMULATOR_NAME"
 echo "IMAGE = $IMAGE"
+echo "ADB_SERVER_PORT =${ADB_SERVER_PORT}"
 
 echo "Install image and NDK..."
 yes | $ANDROID_SDK_ROOT/cmdline-tools/latest/bin/sdkmanager --licenses
@@ -46,11 +48,11 @@ nohup $ANDROID_HOME/emulator/emulator -avd $AVD_EMULATOR_NAME -no-snapshot > /de
 
 # For debugging emulator start issues:
 # echo "Starting emulator blocking..."
-# $ANDROID_HOME/emulator/emulator -avd $AVD_EMULATOR_NAME -no-snapshot
+# $ANDROID_HOME/emulator/emulator -avd $AVD_EMULATOR_NAME -no-snapshot -port "${EMULATOR_PORT}"
 
 echo "Wait for emulator availability..."
-$ANDROID_HOME/platform-tools/adb wait-for-device shell 'ls'
-echo "Verify emulator devices as running..."
-$ANDROID_HOME/platform-tools/adb devices
+$ANDROID_HOME/platform-tools/adb -s "emulator-${EMULATOR_PORT}" wait-for-device shell 'ls'
+echo "Verify emulator devices are running..."
+$ANDROID_HOME/platform-tools/adb -s "emulator-${EMULATOR_PORT}" devices
 
 echo "Emulator started."