feat(emulator): set screen resolution and density via config.ini (#25)

Author: Shmayro

start-emulator.sh

@@ -8,21 +8,31 @@ if [ -f /data/android.avd/ramdisk.img ]; then
   RAMDISK="-ramdisk /data/android.avd/ramdisk.img"
 fi
 
-# Configure optional screen resolution and density
-if [ -n "$SCREEN_RESOLUTION" ]; then
-  SCREEN_RESOLUTION_FLAG="-skin $SCREEN_RESOLUTION"
-fi
-if [ -n "$SCREEN_DENSITY" ]; then
-  SCREEN_DENSITY_FLAG="-dpi-device $SCREEN_DENSITY"
-fi
+# Path to the AVD config
+CONFIG_FILE="/data/android.avd/config.ini"
 
-# Configure optional screen resolution and density
-if [ -n "$SCREEN_RESOLUTION" ]; then
-  SCREEN_RESOLUTION_FLAG="-skin $SCREEN_RESOLUTION"
-fi
-if [ -n "$SCREEN_DENSITY" ]; then
-  SCREEN_DENSITY_FLAG="-dpi-device $SCREEN_DENSITY"
+update_config() {
+  local key="$1"
+  local value="$2"
+  if grep -q "^$key=" "$CONFIG_FILE"; then
+    sed -i "s/^$key=.*/$key=$value/" "$CONFIG_FILE"
+  else
+    echo "$key=$value" >> "$CONFIG_FILE"
+  fi
+}
+
+# Configure optional screen resolution and density directly via config.ini
+if [ -f "$CONFIG_FILE" ]; then
+  if [ -n "$SCREEN_RESOLUTION" ]; then
+    WIDTH=${SCREEN_RESOLUTION%x*}
+    HEIGHT=${SCREEN_RESOLUTION#*x}
+    update_config "hw.lcd.width" "$WIDTH"
+    update_config "hw.lcd.height" "$HEIGHT"
+  fi
+  if [ -n "$SCREEN_DENSITY" ]; then
+    update_config "hw.lcd.density" "$SCREEN_DENSITY"
+  fi
 fi
 
 # Start the emulator with the appropriate ramdisk.img
-/opt/android-sdk/emulator/emulator -avd android -nojni -netfast -writable-system -no-window -no-audio -no-boot-anim -skip-adb-auth -gpu swiftshader_indirect -no-snapshot -no-metrics $SCREEN_RESOLUTION_FLAG $SCREEN_DENSITY_FLAG $RAMDISK -qemu -m ${RAM_SIZE:-4096}
+/opt/android-sdk/emulator/emulator -avd android -nojni -netfast -writable-system -no-window -no-audio -no-boot-anim -skip-adb-auth -gpu swiftshader_indirect -no-snapshot -no-metrics $RAMDISK -qemu -m ${RAM_SIZE:-4096}