Android 2.3 released the latest SDK and development tools

With the release of Nexus S, the much-anticipated android2.3 operating system came to us. According to the official introduction provided by Google, the android system, codenamed ginger pie, not only supports multi-task and WiFi hotspot functions, but also has a re-designed UI interface and upgraded virtual keyboard, the addition of NFC technology that can realize mobile payment is even more gratifying.

New Features of ginger pie Android 2.3 Gingerbread:

1. Improved game support

New garbage collection and optimization events are added to improve support for the game. NativeCodeDirect access to input and sensor events, EGL/OpenGL ES, and opensl es. New management window and lifecycle framework.

2.Simplified interface and improved Running Speed

In the Android 2.3 Gingerbread system, the classic dynamic interface is simplified. The result is that the power consumption in use of the mobile phone is reduced and the standby time is improved, at the same time, the operation speed of mobile phones has been improved.

3.Enhanced Power Management and extended standby time

In the ginger pie Android 2.3 Gingerbread system, more detailed power management options are displayed. At the same time, because of the simplification of the dynamic wallpaper effect, the standby time of the mobile phone using the Android 2.3 Gingerbread system will be extended, this is definitely an improvement in the features that interest users.

In options such as power supply management and memory management, you can learn in detail about the memory running, how long it is running, and how well it is not powered. These system automatic management functions.

4.One-click copy and paste functions similar to iOS Effects

I believe that many iPhone users have talked about the copy and paste function in the Android 2.3 Gingerbread system.

5.Faster and more intuitive text input

The dictionary-based correction function is added to facilitate switching to voice input.

However, according to the feedback from some foreign media, the text input correction function added by this function is quite handy.

 6.Improvement of multimedia audio and video functions

Supports Vp8 and webm video formats, provides AAC and Amr broadband encoding, and provides new audio efficient devices, such as reverb, balanced, virtual headphones, and low-frequency enhancement.

----Liupin: the project I participated in is now part of Google open source code.

 

 7.New Application Management Method

In the main screen menu and corresponding interface display effect management options, the application management function is added to view the runningProgramMemory usage.

8.Add Download Manager

The new Download Manager allows you to manage all files downloaded by browsers, emails, and other applications, which is very convenient and practical.

9.Native support for VoIP

The Android 2.3 Gingerbread system supports native VoIP. You can add a sip account to a contact and then directly call the VoIP through the system.

10.You can select either the front camera or the camera that comes with the rear camera.

The Android 2.3 Gingerbread system allows you to select a practical front or rear camera when taking a photo. This function looks very suitable for post-90 users.

11.Built-in NFC reader Functions

At the same time, users who already have a Google Nexus One mobile phone can upgrade to the Android system online to experience the new features brought about by the upgrade. Android phones of other brands cannot be upgraded for the moment.

NFC Technology

NFC is short for Near Field Communication, which is short for near-range wireless communication technology. NFC, developed jointly by Philips and Sony, is a non-contact identification and interconnection technology that enables close-range wireless communication between mobile devices, consumer electronics, PCs, and smart control tools.

Consumers can use mobile phones that support this technology to swipe cards in public transit, subway, and supermarkets. This technology was used in Nokia 6131i and other products in the early years, there are examples of successful use in Beijing, Guangzhou, Xiamen and other cities.

Android 2.3 Development

With the release of the new platform, Google officially updated the sdks, ndk, and eclipse development plug-in ADT. Their new features include:

Simplified debugging:Developers can easily generate debugging packages without manually configuring the program list to make the work more efficient.

Complete proguard support:Now proguard is an SDK. Developers can embed their code into the release version as a complete part.

Hierarchyviewe: Hierarchyviewer has upgraded the UI and can be directly accessed by the ADT plug-in.

Preview The new UI Editor:The new visual layout editor released in advance allows developers to drag and drop the UI elements in the ADT according to the menu context. This is an ongoing task. Google plans to redo it and complete it as soon as possible.

 

Platform technology upgrade:

New Linux kernel version:The Linux kernel of the ginger pie system has been upgraded to version 2.6.35, which has been used by third-party Rom developers for some time. The official version will provide higher stability and faster speed.

New multimedia framework:Currently, the opencore used by the 2.2 version system has been completely replaced, and all the encoders and decoders will be retained. The Vp8 video compression technology is supported, and the webm video format is also available.

Network:New communication functions such as sip, near-field communication, and bluez stack will bring out a group of more convenient application software.

Dalvik virtual machine:Although the JIT compiler of Android 2.2 has greatly improved the system performance, the Dalvik virtual machine still has much room for improvement, the ginger pie system mainly improves the JIT compiler, code features, and strictmode for identifying performance and memory problems.

Gyroscope and other sensors:Added Data Reading support for various types of sensors, including rotation vectors, current acceleration, and gravity. developers can use these data and sensors to create more sensitive software.

Sound mixing effect:The new media framework supports sound mixing for each song or global audio effect, including bass enhancement, headset virtualization and equalization.

Large Screen:Now supports large screen flat devices to facilitate the development of tablet applications and games.

 

For Android 2.3, Google has created and released a new system document. You can download this document to learn more about the new features of ginger pie.

: Http://www.google.com/googlephone/AndroidUsersGuide-2.3.pdf