By Jamal Eason, Product Manager, Android
At the Google I/O keynote yesterday we announced the L Developer Preview — a development version of an upcoming Android release. The Developer Preview lets you explore features and capabilities of the L release and get started developing and testing on the new platform. You can take a look at the developer features and APIs in the API Overview page.
Starting today, the L Developer Preview is available for download from the L Developer Preview site. We're also announcing that Android Studio is now in beta, and making great progress toward a full release.
Let’s take a deeper dive into what’s included in the preview and what it means for you as a developer as you prepare your apps for the next Android release.
The L Developer Preview includes updated SDK tools, system images for testing on an emulator, and system images for testing on a Nexus 5 or Nexus 7 device.
You can download these components through the Android SDK Manager:
(Note: the full release of Android Wear is a part of Android KitKat, API Level 20. Read more about Android Wear development here.)
Today, we are also providing system image downloads for these Nexus devices to help with your testing as well:
You can download both of these system images from the L Developer Preview site.
With the SDK Tools, and Nexus device images, you can get a head start on testing out your app on the latest Android platform months before the official launch. You can use the extra lead time to take advantage of all the new app features and APIs in your apps. The Nexus device images can help you with testing, but keep in mind that they are meant for development purposes only and should not be used on a production device.
The L Developer Preview is a development release and does not have a standard API level. The APIs are not final, and you can expect minor API changes over time.
To ensure a great user experience and broad compatibility, you can not publish versions of your app to Google Play that are compiled against L Developer Preview. Apps built for L Developer Preview will have to wait until the full official launch to publish on Google Play.
To help you develop your apps for the upcoming Android version and for new Android device types, we’re also happy to announce Android Studio Beta. Android Studio Beta helps you develop apps by enabling you to:
Building on top of the build variants and flavors features we introduced last year, the Android Studio build system now supports creating multiple apks, such as for devices like Android Wear. You can try out all the new features with the L Developer Preview by downloading the Android Studio Beta today.
To get started with the L Developer Preview and prepare your apps for the full release, just follow these steps:
As you use the new developer features and APIs in the L Developer Preview, we encourage you to give us your feedback using the L Developer Preview Issue Tracker. During the developer preview period, we aim to incorporate your feedback into our new APIs and adjust features as best as we can.
You can get all the latest downloads, documentation, and tools information from the L Developer Preview site on developer.android.com. You can also check our Android Developer Preview Google+ page for updates and information.
We hope you try the L Developer Preview as you start building the next generation of amazing Android user experiences.
By Monica Tran, Head of Developer Marketing
Today at Moscone, we kicked off our 7th annual Google I/O. This year, we’re focusing on three key themes: design, develop, distribute, helping you build your app from start to finish.
It’s been amazing to see how far you’ve come: in fact, since the last Google I/O, we’ve paid developers more than $5 billion, a testament to the experiences you’re creating. In the keynote, we had a number of announcements geared towards meeting the user wherever they go: on the TV, in the car and on your wrist. Below is a taste of some of the goodies we unveiled to help you along the way.
By Jamal Eason, Product Manager, Android
Earlier today, at Google I/O, we showed a number of projects we’ve been working on to the thousands of developers in the audience and the millions more tuning in on the livestream. These projects extend Android to the TV (Android TV), to the car (Android Auto) and to wearables (Android Wear), among others.
At Google, our focus is providing a seamless experience for users across all of the screens in their lives. An important component to that is making sure that you as developers have all of the tools necessary to easily deploy your apps across to those screens. Increasingly, Android is becoming the fabric that weaves these experiences together, which is why you’ll be excited about a number of things we unveiled today.
For the first time since we launched Android, we’re giving you early access to a development version of an upcoming release. The L Developer Preview, available starting tomorrow, lets you explore many of the new features and capabilities of the next version of Android, and offers everything you need to get started developing and testing on the new platform. This is important because the platform is evolving in a significant way — not only for mobile but also moving beyond phones and tablets. Here are a few of the highlights for developers:
Watch for more details coming out tomorrow (26 June) on what’s in the L Developer Preview and how to get it.
Along with the L Developer Preview, we also announced a new version of Google Play services that brings new capabilities and the latest optimizations to devices across the Android ecosystem. Google Play services ensures that you can build on the latest features from Google for your users, with the confidence that those services will work properly everywhere. The latest version has begun rolling out and here are some of the highlights:
We expect the rollout of Google Play services 5.0 to take several days, after which time you’ll be able to get started developing with these new APIs.
If you’d like to learn more, join us for sessions on Android development, material design, game development, and more. You’ll find the full session list on the Google I/O 2014 site, and you can filter the schedule to find livestreamed sessions of interest.
By Greg Hartrell, Product Manager, Google Play games
With Google I/O ‘14 here, we see Android and Google Play as a huge opportunity for game developers: 3 in 4 Android users are playing games, and with over one billion active Android users around the world, games are reaching and delighting almost everyone.
At Google, we see a great future where mobile and cloud services bring games to all the screens in your life and connect you with others. Today we announced a number of games related launches and upcoming technologies across Google Play Games, the Android platform and its new form factors.
At last year’s Google I/O, we announced Google Play Games -- Google’s online game platform, with services and user experiences designed to bring players together and take Android and mobile games to the next level.
Google Play Games has grown at tremendous speed, activating 100 million users in the past 6 months. It’s the fastest growing mobile game network, and with such an incredible response, we announced more awesome enhancements to Google Play Games today.
The Play Games app now gives players a Game Profile, where they earn points and vanity titles from unlocking achievements. Players can also compare their profile with friends. Developers can benefit from this meta-game by continuing to design great achievements that reward players for exploring all the content and depth of their game.
Two new game services will launch with the next update for Google Play Services on Android, and through the Play Games iOS SDK:
We have many great partners who have started integrating Quests and Saved Games, here are just a few current or upcoming games.
Other developer tools are now available for Play Games, including:
With the announcement of the developer preview of the Android L-release, there are some new platform capabilities that will make Android an even more compelling platform for game development.
We're pleased to be working with different GPU vendors to adopt AEP including Nvidia, ARM, Qualcomm, and Imagination Technologies.
And Google's game network is a part of the Android TV announcement — so think of Android on a TV, with a rich interface on a large screen, and fun games in your living room! Players will be able to earn achievements, climb leaderboards and play online with friends from an Android TV. This is only available through the developer preview, so game developers seeking a hardware development kit (the ADT-1) can make a request at http://developer.android.com/tv.
That’s a lot of games announcements! Our Play Games changes will roll out over the next few weeks with the update of Google Play Services and the Play Games App, and Android L-release changes are part of the announced developer preview. This gets us a big step closer to a world where Android and our cloud services enable games to reach all the screens in your life and connect you with others.
Greg Hartrell is the lead product manager for Google Play Games: Google's game platform that helps developers reach and unite millions of players. Before joining Google, he was VP of Product Development at Capcom/Beeline, and prior to that, led product development for 8 years at Microsoft for Xbox Live/360 and other consumer and enterprise product lines. In his spare time, he enjoys flying birds through plumbing structures, boss battles and pulling rare objects out of mystery boxes.
By: Purnima Kochikar, Director, Google Play Apps & Games
With over 1 billion active Android users, an increasing number of developers like you are building successful global businesses on Google Play. Since the last Google I/O, we’ve also paid out more than $5 billion to developers.
This week at Google I/O, we announced new ways to help you build a successful business. These solutions work together at scale to help you find more users, understand and engage them, and effectively convert your active users into buyers.
Last year, Google Play became an even better place to try new ideas. Since May 2013, Google Play offers Alpha and Beta Testing so that you can engage users early to get feedback on your new app. Feedback provided by users is private, allowing you to fix issues before publicly launching the app, and without impacting your public ratings and reviews. Over 80,000 apps on Google Play are actively using beta testing. You can also ensure new versions get a positive response by updating through staged rollouts.
As your app business grows, you dedicate more time to release management. Today we announced the Google Play Developer Publishing API to help you scale your release operations. The new API will let you upload APKs, manage your in-app products and localized store listings. You will be able to integrate publishing operations with your release processes and toolchain through a RESTful API. With the Google Play Developer Publishing API you’ll spend less time managing your releases and more time managing your business. This API is currently in closed beta and we look forward to making it available to all developers.
The Google Play Developer Console now offers more actionable insights into your app’s performance by sending you email notifications for Alerts and providing Optimization Tips. We’re also offering new revenue metrics including number of buyers and average revenue per paying user. You’ll also be able to export user reviews for further analysis. Click on Announcements in the Developer Console for a list of new features.
For game developers, we recently launched enhanced Play Games statistics on the Google Play Developer Console. You get a daily dashboard that visualizes player and engagement statistics for signed in users, including daily active users, retention analysis, and achievement and leaderboard performance.
With AdWords, we're building a robust platform to help you promote your app and drive re-engagement. This week we are launching Installed App Category Targeting, a new way to promote your app to new users. It helps you reach potential customers across the AdMob network who have already installed apps from related categories on Google Play and other app stores. For example, an action-oriented game developer may wish to reach users who have previously installed apps from the category Action & Adventure Games.
Ads can also remind users about the apps they already have. Through Google mobile display and search ads deep linking, you can re-engage users who have already installed your Android app by taking them directly to specific pages in the app. Let’s say someone has the Hotel Tonight app installed on their phone. If they search Google for “hotels in San Francisco," they'll see an ad that will open Hotel Tonight app and take them directly to a list of San Francisco hotels.
This deep-linking is also available through search for all apps that implement app indexing. If a user with the Walmart Android app searches for “Chromecast where to buy”, they’ll go directly to the Chromecast page in the Walmart app. The new App Indexing API is now open to all Android developers, globally. Get started now.
For game developers using Play Games, we announced a new Game Profile that is automatically customized based on the gameplay and achievements earned in those games. Since its launch last year, users have loved saving their game progress in the cloud. We’re now evolving this feature to Saved Games, where users can save up to 3 “bookmarks” of their progress in the Play Games app, complete with images and descriptions. Finally, we announced a new service called Quests — it you run online, time-based goals in your game; for example, players can collect bunch of in-game items on a specific day, and the quests services coordinates with your game to know who completed the goal. These APIs run events for your players, and reward them, without the need to update your game.
Today, we announced that users who have set up Direct Carrier Billing on their smartphone can also make purchases on Google Play from their tablet, charging to the same mobile phone bill. In addition to our recent launch of payments through PayPal, these new user payment options expand monetization opportunities for your apps.
As announced earlier this year, Google Analytics is now directly available in the AdMob interface, giving you powerful segmentation tools to determine the best monetization strategy for each user. For example, you might want to display in-app purchase ads to users most interested in buying, while showing regular ads to those less likely to buy right now. Once you’ve segmented your audience in this way, you can use AdMob to build interstitial ads that promote in-app purchase items to users at a point in your app that’s useful to them. This creates a more customized experience for users, can help prolong engagement and grow in-app purchase revenue. Learn more.
If you're at Google I/O 2014, please join us at our breakout sessions today and tomorrow, where we'll be talking about these features in much more detail. (Add us to your calendar!) And if you can't make I/O, you can always join us on the livestream or watch the videos online later.
By Dave Burke and Majd Bakar, Engineering Directors and TV Junkies
Last summer, we launched Chromecast, a small, affordable device that lets you cast online video, music and anything from the web to your TV. Today at Google I/O, we announced Android TV, the newest form factor to the Android platform, and a way to extend the reach of Google Cast to more devices, like televisions, set-top boxes and consoles.
Check out Coming to a Screen Near You for some details on everything we’re doing to make your TV the place to be.
For developers though--sorry, you don’t get to unwind in front of the TV. We need you to get to work and help us create the best possible TV experience, with all of the new features announced at I/O today.
In addition to Google Cast apps that send content to the TV, you can now build immersive native apps and console-style games on Android TV devices. These native apps work with TV remotes and gamepads, even if you don’t have your phone handy. The Android L Developer Preview SDK includes the new Leanback support library that allows you to design smoother, simpler, living room apps.
And this is just the beginning. In the fall, new APIs will allow you to cast directly to these apps, so users can control the app with the phone, the remote, or even their Android Wear watch. You’ll also start seeing Android TV set-top boxes, consoles and televisions from Sony, TP Vision, Sharp, Asus, Razer and more.
We want to help users more easily find your content, so we’ve improved the Google Cast SDK developer console to let you upload your app icon, app name, and app category for Android, iOS and Chrome. These changes will help your app get discovered on chromecast.com/apps and on Google Play.
Additional capabilities have also been added to the Google Cast SDK. These include: Media Player Library enhancements, bringing easier integration with MPEG-DASH Smooth Streaming, and HLS. We’ve also added WebAudio & WebGL support, made the Cast Companion Library available, and added enhanced Closed Caption support. And coming soon, we will add support for queuing and ID delegation.
Ready to get started? Visit developer.android.com/tv and developers.google.com/cast for the SDKs, style guides, tutorials, sample code, and the API references. You can also request an ADT-1 devkit to bootstrap your Android TV development.