Tag Archives: Android Open Source Project

AOSP Application Updates

Posted by Raman Tenneti, AOSP Software Engineer and Ally Sillins, AOSP Program Manager

When we started the Android Open Source Project (AOSP) 10 years ago, we included some basic applications in the AOSP build for three main purposes:

  1. to provide a usable set of applications for someone building an Android device from our AOSP
  2. to serve as a demonstration for the nascent Android app developer community, showcasing how they should build some of these applications
  3. to, as part of the platform, provide functionality to other Android applications that would interact with them through the standard Android APIs like the common intents

However, as the Android ecosystem has matured over time, we've noticed a healthy growth of alternative applications - both as open source and proprietary implementations - developed by the developer community. These alternative applications are not only capable to serve the first two purposes, but often times showcase richer set of features demonstrating the power of Android. Late last year, we began to clean up these applications in AOSP to focus more effectively on the last purpose — their role to provide functionality to other Android applications as part of the platform.

To date, the following 3 apps have been cleaned up: Music, Calendar, and Calculator. See below for details on these updates. Going forward, you can expect to see similar efforts with the other applications in the AOSP repository.

As always, we're excited to hear your feedback on the developer website or through our AOSP forum.

Music Application

AOSP's Music app can now playback music, one file at a time, and exposes itself as an intent handler for the android.media.browse.MediaBrowserService. The app has controls to play and pause, and a slider moving forward and backward. Features removed include: Music Icon, Artists, Albums, Songs, Playlists, Search, and Settings.

Calendar Application

AOSP's Calendar app now exposes itself as an intent handler for the calendar events. New events cannot be created and existing events cannot be edited or deleted. The following features have been deleted: support for multiple accounts, reminders and settings. In addition, some features remain that are not needed for providing a part of the platform functionality: views for day, week, and month. This app may be further simplified in the future.

Calculator App

The calculator application is a standalone app, and does not function as part of the platform and hence has been removed from the AOSP build. However, the application will continue to exist as an open source project separately.

More visibility into the Android Open Source Project

Posted by Jeff Bailey, AOSP Team

AOSP has been around for more than 10 years and visibility into the project has often been restricted to the Android Team and Partners. A lot of that has been rooted in business needs: we want to have fun things to show off at launches and the code wasn't factored in a way that let us do more in the open.

At the Android Developer Summit last month, we demoed GSI running on a number of partner devices, enabled through Project Treble. The work done to make that happen has provided the separation needed, and has also made it easier to work with our partners to upstream fixes for Android into AOSP. As a result of this, more than 40% of the commits to our git repository came in through our open source tree in Q3 of this year.

Publishing Android's Continuous Integration Dashboard

In order to support the developers working directly in AOSP and our partners upstreaming changes, we have enabled more than 8000 tests in presubmit -- tests that are run before the code is checked in -- and are working to add other continuous testing like the Compatibility Test Suite which ensures that our AOSP trees are in a continuously releasable state. Today we are excited to open this up for you through https://ci.android.com/.

On this dashboard, across the top are the targets that we are building, down the left are the revisions. As we add more targets (such as GSI), they will appear here. Each square in the table provides access to the build artifacts. An anchor on the left provides a permanent URL for that revision. Find out more at https://source.android.com/setup/build/dashboard.

Our DroidCop team (similar to Chromium's Tree Sherrifs) watches this dashboard and works with developers to ensure the health of the tree. This is just the start for us and we are building on this tool to add more in the coming months.

I'd like to thank the Android Engineering Productivity Team for embracing this and I'm excited for us to take this step! I'd love to hear how you use this. Contact me at @jeffbaileyaosp on Twitter, jeffbailey+aosp@google.com, or tag /u/jeffbailey in a post to reddit.com/r/androiddev.