Google+ Sign-in for your Android Apps
Google+ Sign-In is an easy, trusted way to sign a user into your app, and get more Android installs when people visit your website. When users sign in with Google on the web, they have the option to instantly install your Android app without ever leaving your website.
New Google Maps Android APIs!
Google Maps Android API version 2 is now available with enhanced features such as 3D buildings, vector-based map tiles, rich overlay capabilities, indoor maps, support for fragments, and much more.
The APIs are bundled with Google Play services and are compatible with Android 2.2 and higher.
Building Great Apps for Tablets
Tablets are a growing part of the Android installed base and they offer new opportunities for user engagement and monetization. If you are targeting tablets, check out the Tablet App Quality Checklist for tips and techniques on how to deliver a great app experience for tablet users.
In-app Subscriptions with Trials
You can now set up a free trial period for any Google Play in-app subscription, making it easy for users try your subscriber content before automatically converting to a full subscription. Free trials give you a new way to bring users into your products and engage them effectively.
From the blog:
New Google Play Developer Console
All developers can now try the new Google Play Developer Console. With a streamlined publishing flow, new language options, and new user ratings statistics, you’ll have better tools for delivering great Android apps that delight users.
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Verifying Back-End Calls from Android Apps
You can take advantage of the auth APIs in Google Play services to let your back end know which app is calling and for which user....
Daydream: Interactive Screen Savers
Daydream is an interactive screen-saver mode introduced in Android 4.2. Learn how to add Daydreams to your apps...
Designing for Tablets?
Essential resources for everyone in the app development pipeline—from product managers, to designers, to developers, and QA engineers...
In-app Billing Version 3 Now Available
A new version of In-app Billing is available that lets you sell digital goods in your app with just a few lines of code...
More developers are investing in a full tablet experience for their apps. Here are some stories from developers who are seeing real results as they expand their offering to include Android tablets.
Core App Quality Guidelines
This document helps you assess basic aspects of quality in your app through a compact set of core app quality criteria and associated tests. All Android apps should meet these criteria.
Updated Notifications API Guide
The Notifications API Guide is updated to include information about building Jelly Bean rich notifications using the Support Library APIs for backwards-compatibility.
Updated Dialogs API Guide
The Dialogs API Guide now shows to use DialogFragment class, a simpler way to manage your dialogs and embed them in alternative layouts.
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