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Using DialogFragments

8. Mai 2012 - 20:00 – Markus

[This post is by David Chandler, Android Developer Advocate — Tim Bray]

Honeycomb introduced Fragments to support reusing portions of UI and logic across multiple activities in an app. In parallel, the showDialog / dismissDialog methods in Activity are being deprecated in favor of DialogFragments.

Android C2DM — Client Login key expiration

13. April 2012 - 18:44 – Markus

[This post is by Francesco Nerieri, engineering team lead for C2DM — Tim Bray]

In the upcoming weeks, some of the older Client Login authentication keys will expire. If you generated the token you’re currently using to authenticate with the C2DM servers before October 2011, it will stop working.

If the response from the C2DM servers contains an Update-Client-Auth header, you’ll need to replace the current token with the one included in the header.

New Seller Countries in Google Play

12. April 2012 - 22:30 – Markus

Over the past year we’ve been working to expand the list of countries and currencies from which Android developers can sell their products. Starting today, developers in Czech Republic, Israel, Poland, and Mexico can sell priced applications and in-app products on Google Play, using their local bank accounts for payments. Welcome developers!

Accessibility: Are You Serving All Your Users?

10. April 2012 - 19:35 – Markus

[This post is by Joe Fernandez, a technical writer for developer.android.com who cares about accessibility and usability. — Tim Bray.]

We recently published some new resources to help developers make their Android applications more accessible:

A Faster Emulator with Better Hardware Support

9. April 2012 - 20:00 – Markus

[This post is by Xavier Ducrohet and Reto Meier of the Android engineering team. — Tim Bray.]

The Android emulator is a key tool for Android developers in building and testing their apps. As the power and diversity of Android devices has grown quickly, it’s been hard for the emulator keep pace.

Today we’re thrilled to announce several significant improvements to the emulator, including a dramatic performance upgrade and support for a broader range of hardware features, notably sensors and multi-finger input.

The Gmail Public Labels API

4. April 2012 - 7:43 – Markus

[This post is by Nadav Aharony, a product manager on the Android team — Tim Bray]

We’re rolling out new developer features for the Gmail Android app: It now includes a public ContentProvider that you can use to retrieve label data. You can use this to access up-to-date unread counts for specific accounts’ inboxes and labels.

New Sales Reports on Google Play

22. März 2012 - 21:37 – Markus

[This post is by Debashish Chatterjee, Krishna Atkuru, and Ellie Powers of the Google Play Publisher Site team. —Dirk Dougherty]

For app publishers, complete and timely sales reporting is incredibly useful for managing a business on Google Play. Today we are introducing a new financial tool — Estimated Sales Reports — to give you visibility over ongoing product sales and help you support customers between payout cycles.

Updated SDK Tools and ADT revision 17

21. März 2012 - 23:00 – Markus

Today we are releasing an update to the SDK Tools and the Eclipse plugin. Revision 17 brings a lot of new features and bug fixes in various areas such as Lint, the build system as well as the emulator.

Lint is a static checker which analyzes Android projects for a variety of issues around correctness, security, performance, usability and accessibility, checking your XML resources, bitmaps, ProGuard configuration files, source files and even compiled bytecode. It can be run from within Eclipse or from the command line.
New for r17:

Unifying Key Store Access in ICS

13. März 2012 - 18:15 – Markus

[This post is a group effort by Tony Chan, Fred Chung, Brian Carlstrom, and Kenny Root. — Tim Bray]

Android 4.0 (ICS) comes with a number of enhancements that make it easier for people to bring their personal Android devices to work. In this post, we’re going to have a look at the key store functionality.

Back in Android 1.6 (Donut), a system key store was added for use by VPN. Although this was later expanded to support WiFi authentication, applications weren’t able to access it.