Generate APK file without IDE

make_app.sh

#!/bin/bash

#mkdir -p { src/com/example/hellovirgool, obj,  bin,  res/layout, res/values,  res/drawable}

#Define the help function
function help() {
  echo "Options:"
  echo "-package    Package Name"
  echo "-sdk    SDK Path"
  echo "-name Application Name"
  exit 1
}

packageName="hellovirgool"
appName="my_app"
#Define the getopts variables
options="package:sdk:name:"

#Start the getopts code
while getopts "$options" opt; do
  case $opt in
  package) packageName=$OPTARG ;;
  sdk) sdk=$OPTARG ;;
  name) appName=$OPTARG ;;
  ?) help ;;
  esac
done

SRC_PATH="src/com/$packageName"
mkdir -p "$SRC_PATH" obj bin res/layout res/values res/drawable

export PROJECT_PATH="$PWD"
export SDK="$sdk"

cd "$SDK/build-tools/29.0.2/"
./aapt package -f -m -J "$PRJ/src" -M "$PRJ/AndroidManifest.xml" -S "$PRJ/res" -I "$SDK/platforms/android-29/android.jar"

javac -source 1.7 -target 1.7 -d obj -classpath src -sourcepath "$SDK/platforms/android-29/android.jar" "$SRC_PATH/*.java"

cd "$SDK/build-tools/29.0.2/"
./dx --dex --output="$PRJ/bin/classes.dex" "$PRJ/obj"

./aapt package -f -m -F "$PRJ/bin/$appName.apk" -M "$PRJ/AndroidManifest.xml" -S "$PRJ/res" -I "$SDK/platforms/android-29/android.jar"

cp "$PRJ/bin/classes.dex" .
./aapt add "$PRJ/bin/$appName.apk" classes.dex