下载cmdline 里面包括sdkmanager等工具
export ANDROID_HOME=/path/to/android/sdk
./sdkmanager --sdk_root=/path/to/android/sdk "platform-tools" "platforms;android-30" "build-tools;30.0.3"
./sdkmanager --sdk_root=/path/to/android/sdk --licenses
代码编译
./gradlew
./gradlew build