Do developers need to build two different Android apps now?
Developers only need to maintain one project with one source tree. Developers configure the project to create two build artifacts: the installable APK and the instant apps version. The effort involved varies depending on how the APK is currently structured.
What Android APIs and functionality can Instant Apps use?
Android Instant Apps functionality complements an existing Android app, but does not replace it. Android Instant Apps uses the same Android APIs, the same project, the same source code. Android Instant Apps restricts some features that might not match users' expectations of an app that is not installed. For example, an Instant App can't use background services, do background notifications, or access unique device identifiers.
Can users choose to install the app permanently?
Developers can allow users to download the app from the Google Play Store. After download, the app remains on the phone after the user has left the experience.
How do permissions work in Android Instant Apps?
Android Instant Apps uses the runtime permissions model introduced in Android 6.0 (API level 23).
How do developers publish these apps?
Developers publish their Instant Apps through the Google Play Developer Console, similar to their existing Android apps.
How can developers get involved?
Developers interested in upgrading their Android apps can visit g.co/InstantApps to sign up. We will be reaching out to interested developers in the coming months.