摘要：
Android, 4.0,Social APIs in Contacts Provider，Calendar Provider，Voicemail Provider，Multimedia，Camera，Android Beam (NDEF Push with NFC)，Wi-Fi P2P，Bluetooth Health Devices，Accessibility，Spell Checker Services，Text-to-speech Engines，Network Usage，RenderScript，Enterprise，Device Sensors，Action Bar，User Interface and Views，Input Framework，Properties，Hardware Acceleration，JNI Changes，WebKit，Permissions，Device Features 阅读全文
