Two more weeks!
At Google I/O last June, we gave you an early version of Android 5.0 with the L Developer Preview,
running on Nexus 5, Nexus 7 and Android TV. Over the course of the L
Developer Preview program, you’ve given us great feedback and we
appreciate the engagement from you, our developer community. Thanks!
This week, we announced Android 5.0 Lollipop. Starting today, you can download the full release of the Android 5.0 SDK, along with updated developer images for Nexus 5, Nexus 7 (2013), ADT-1, and the Android emulator.
The first set of devices to run this new version of Android -- Nexus
6, Nexus 9, and Nexus Player -- will be available in early November. In
the same timeframe, we'll also roll out the Android 5.0 update worldwide
to Nexus 4, 5, 7 (2012 & 2013), and 10 devices, as well as to
Google Play edition devices.
Therefore, now is the time to test your apps on the new platform. You have two more weeks to get ready!
What’s in Lollipop?
Android 5.0 Lollipop introduces a host of new APIs and features including:- Material Design theme & APIs
- Enhanced Notifications for your apps
- Project Volta and Battery Historian for better power efficiency for apps
- Enhanced app runtime with Android Runtime (ART)
- OpenGL ES 3.1, Android Extension Pack & 64-bit support for better game & app performance
What’s in the Android 5.0 SDK?
The Android 5.0 SDK includes updated tools and new developer systemimages for testing. You can develop against the latest Android platform
using API level 21 and take advantage of the updated support library to
implement Material Design as well as the leanback user interface for TV
apps.
You can download these components through the Android SDK Manager and develop your app in Android Studio:
- Android 5.0 SDK Platform & Tools
- Android 5.0 Emulator System Image - 32-bit & 64-bit (x86)
- Android 5.0 Emulator System Image for Android TV (32-bit)
- Android v7 appcompat Support Library for Material Design theme backwards capability
- Android v17 leanback library for Android TV app support
- NDK r10c with API level 21 support
- Android 5.0 system image over the air (OTA) update for ADT-1 Developer Kit. OTA updates will appear over the next few days.
for Nexus 5 & Nexus 7 (2013) devices to help with your testing as
well. These images support the Android 5.0 SDK, but only have the
minimal apps pre-installed in order to enable developer testing:
- Nexus 5 (GSM/LTE) “hammerhead” Device System Image
- Nexus 7 (2013) - (Wifi) “razor” Device System Image
your developer device to use the latest developer preview versions. If
you want to receive the official consumer OTA update in November and any
other official updates, you will have to have a factory image on your Nexus device.
Validate your apps with the Android 5.0 SDK
With the consumer availability of Android 5.0 and the Nexus 6, Nexus9, and Nexus Player right around the corner, here are a few things you
should do to prepare:
- Get the emulator system images through the SDK Manager or download the Nexus device system images.
- Recompile your apps against Android 5.0 SDK, especially if you used any preview APIs. Note: APIs have changed between the preview SDK and the final SDK.
- Validate that your current Android apps run on the new API 21 level with ART enabled.
And if you use the NDK for your C/C++ Android apps, validate against
the 64-bit emulator. ART is enabled by default on API 21 & new
Android devices with Android 5.0.
Migrate Your Existing App to Material Design
Android 5.0 Lollipop introduces Material Design,which enables your apps to adopt a bold, colorful, and flexible design,
while remaining true to a small set of key principles that guide user
interaction across multiple screens and devices.
After making sure your current apps work with Android 5.0, now is the time to enable the Material theme in your app with the AppCompat support library. For quick tips & recommendations for making your app shine with Material Design, check out our Material Design guidelines and tablet optimization tips. For those of you new to Material Design, check out our Getting Started guide.
Get your apps ready for Google Play!
Starting today, you can publish your apps that are targeting Android 5.0 Lollipop to Google Play. In your app manifest, updateandroid:targetSdkVersion to "21", test your app, and upload it to the Google Play Developer Console. Starting November 3rd, Nexus 9 will be the first device available to
consumers that will run Android 5.0. Therefore, it is a great time to
publish on Google Play, once you've updated and tested your app. Even if
your apps target earlier versions of Android, take a few moments to
test them on the Android 5.0 system images, and publish any updates
needed in advance of the Android 5.0 rollout.
Stay tuned for more details on the Nexus 6 and Nexus 9 devices, and how to make sure your apps look their best on them.
Next up, Android TV!
We also announced the first consumer Android TV device, Nexus Player.It’s a streaming media player for movies, music and videos, and also a
first-of-its-kind Android gaming device. Users can play games on their
HDTVs with a gamepad, then keep playing on their phones while they’re on
the road. The device is also Google Cast-enabled, so users can cast
your app from their phones or tablets to their TV.
If you’re developing for Android TV, watch for more information on
November 3rd about how to distribute your apps to Android TV users
through the Google Play Developer Console. You can start getting your
app ready by making sure it meets all of the TV Quality Guidelines.
Get started with Android 5.0 Lollipop platform
If you haven’t had a chance to take a look at this new version of Android yet, download the SDK and get started today. You can learn more about what’s new in the Android 5.0 platform highlights and get all the details on new APIs and changed behaviors in the API Overview. You can also check out the latest DevBytes videos to learn more about Android 5.0 features.Enjoy this new release of Android!
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