Installs the Android SDK, the platform tools and the emulator on Ubuntu.

install-android-sdk.sh

#!/bin/bash

set -e

# Installing required packages for the Android SDK
# and the emulator.
sudo apt update -y && \
  DEBIAN_FRONTEND=noninteractive sudo apt install -y --no-install-recommends \
    unzip \
    wget \
    openjdk-11-jdk

# Environment variables defining the specific Android SDK
# to install.
export API_LEVEL="${API_LEVEL:-33}"
export IMG_TYPE="${IMG_TYPE:-google_apis}"
export ARCHITECTURE=x86_64
export CMD_LINE_VERSION=9477386_latest
export ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT:-/opt/android}"
export ANDROID_PLATFORM_VERSION="platforms;android-$API_LEVEL"
export PACKAGE_PATH="system-images;android-${API_LEVEL};${IMG_TYPE};${ARCHITECTURE}"

# Importing SDK command-line tools in the path.
export PATH="${PATH}:${ANDROID_SDK_ROOT}/cmdline-tools/tools/bin"

# Downloading and extracting the command-line tools
# in the ANDROID_SDK_ROOT if they don't exist.
if [ ! -d "$ANDROID_SDK_ROOT"/cmdline-tools/ ]; then
  wget https://dl.google.com/android/repository/commandlinetools-linux-"${CMD_LINE_VERSION}".zip -P /tmp
  mkdir -p "$ANDROID_SDK_ROOT"/cmdline-tools/
  unzip -d "$ANDROID_SDK_ROOT"/cmdline-tools/ /tmp/commandlinetools-linux-"${CMD_LINE_VERSION}".zip
  mv "$ANDROID_SDK_ROOT"/cmdline-tools/cmdline-tools/ "$ANDROID_SDK_ROOT"/cmdline-tools/tools/
fi

# Installing the Android SDK, platform tools and
# emulator.
echo "Installing Android SDK for API ${API_LEVEL}"
yes | sdkmanager --licenses
sdkmanager --install "$PACKAGE_PATH" "$ANDROID_PLATFORM_VERSION" platform-tools emulator