android 2.3 changes

Android 2.3 Platform | Android Developers

"

The platform now includes a SIP protocol stack and framework API that lets developers build internet telephony applications. Using the API, applications can offer voice calling features without having to manage sessions, transport-level communication, or audio — these are handled transparently by the platform's SIP API and services.

Android 2.3 includes an NFC stack and framework API that lets developers read NDEF tags that are discovered as a user touches an NFC-enabled device to tag elements embedded in stickers, smart posters, and even other devices.

Android 2.3 adds platform and API support for several new sensor reading types — gyroscope, rotation vector, linear acceleration, gravity, and barometer.

Applications can now make use of any cameras that are available on a device, for either photo or video capture. The Camera lets applications query for the number of cameras available and the unique characteristics of each.

New parameters for cameras, including focus distance, focus mode, and preview fps maximum/minimum

The platform's media framework adds support for new per-track or global audio effects, including bass boost, headphone virtualization, equalization, and reverb.

The application uses advanced multipoint multitouch capabilities on the device screen, for tracking up to five points fully independently.