Wednesday, December 5, 2007

Google Developer Podcast: Android



Dianne Hackborn and Jason Parks are two of the architects on the Android engineering team, and in this podcast they talk to us about the Android platform from a technical perspective.



Dianne and Jason share a background at both Be and PalmSource, and talk about how that experience has been applied to Android. Other topics covered include:




  • Some history behind the project

  • The high level architecture of Android. For example, how Linux processes handle the VM and manage security (the VM doesn't handle it)

  • Details on the Dalvik VM and how it is optimized for small devices

  • The architecture: From Intents to Views to Permissions and more

  • How XML is slow, but the tools convert the XML to a nicer format for you

  • The tooling and steps for building an application on Android

  • How so many objects have a URL, and how the environment is like a mini-SOA (Services across processes instead of across the network)

  • Thoughts on how you program for small devices, and things to watch out for if you move from the desktop

  • The control, or lack of control that you have over the application lifecycle

  • "Everything you do drains the battery"

  • The thread story: they exist, you don't have to deal with them if you don't want to, and the UI

  • Using XMPP for messaging



You can download the episode directly, or subscribe to the show (click here for iTunes one-click subscribe).

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