Add virtual framebuffer

Dockerfile

@@ -21,6 +21,8 @@ RUN apt update -y && \
     		openjdk-11-jdk \
     		ca-certificates-java \
         virt-manager \
+        libvulkan1 \
+        xvfb \
 				libgl1-mesa-glx \
         libgl1-mesa-dri \
 				iproute2 && \
@@ -46,6 +48,7 @@ ENV ANDROID_SDK_ROOT=/opt/android \
     ARCHITECTURE=$ARCHITECTURE \
     ABI=${IMG_TYPE}/${ARCHITECTURE} \
     QTWEBENGINE_DISABLE_SANDBOX=1 \
+    DISPLAY=:99 \
     ANDROID_EMULATOR_WAIT_TIME_BEFORE_KILL=10
 
 # Exporting environment variables for keeping in the path

scripts/start-emulator.sh

@@ -25,6 +25,8 @@ echo "Creating the Android Virtual Emulator ..."
 echo "Using package '$PACKAGE_PATH', ABI '$ABI' and device '$DEVICE_ID' for creating the emulator"
 echo no | avdmanager create avd -n android --abi "$ABI" -k "$PACKAGE_PATH" --device "$DEVICE_ID"
 
+Xvfb "$DISPLAY" -screen 0 1920x1080x16 -nolisten tcp &
+
 # Asynchronously write updates on the standard output
 # about the state of the boot sequence.
 #cat ~/.android/avd/android.avd/config.ini
@@ -33,8 +35,9 @@ wait_for_boot &
 # Start the emulator with no audio, no GUI, and no snapshots.
 echo "Starting the emulator ..."
 emulator \
+  -verbose \
   -avd android \
-  -gpu swiftshader_indirect \
+  -gpu host \
   -noaudio \
   -no-boot-anim \
   -no-window \