Developing Android App in AOSP Sources

I’ll show you how to build Android App from sources in the Android Open Source Project source tree.

Create a new project in Android Studio in /packages/appsdirectory,
e.g. /packages/apps/Foo.

Add Android.bp file to the root directory of your project

android_app {
    srcs: ["app/src/**/*.java", "app/src/**/*.kt"],

    resource_dirs: ["app/src/main/res"],

    name: "Foo",

    platform_apis: true,
    certificate: "platform",

    optimize: {
        enabled: false,
    }…