Explanation of new features of Android 4.1 Jelly Bean

Explanation of new features of Android 4.1 Jelly Bean

The press conference is over. The new Android version 4.1, codenamed Jelly Bean (jelly bean), has been officially launched. In addition to the new architecture, new notification bar, and search functions, in fact, this new system still has many new features that cannot be fully presented at the press conference. Now we will analyze these new features one by one, so that you can see whether the 4.1 version system will be worth your expectation.

　　1. Faster, smoother, and more responsive

In the speech, apart from hearing the word jelly bean, there is also a project butter, which is the most important enhancement project in the new version of the system.

First, the new version of the system uses a new processing architecture, and the support for multi-core processors is finally available. The dual-core and quad-core processors in Android devices will be better optimized, delivers strong performance.

Second, in the new version of the system, the frame speed of the special effect animation is increased to 60 FPS, the 4.1 system will also optimize the best performance and low touch latency, provide a smooth and intuitive user interface.

To ensure consistent frame speed, all the drawings and animations of the android 4.1 Framework will be synchronized with vsync timing, application rendering, touch events, image charts, display refresh, and other operations will all be locked in response within 16 milliseconds, and all frames are not in advance or backward.

Android 4.1 also adds three times the buffer to make rendering more smooth. The Touch latency not only follows the vsync timing, but also pre-judges the touch operation for advance rendering. In addition, more processing capabilities are allocated when the CPU is idle to deal with touch events, to ensure that the touch has no latency.

The SDK development tool will also provide a new tool, systrace, which allows developers to directly use mobile phone data in the Linux kernel to determine the cause of rendering interruption.

 

 

2. Enhanced notification bar

The notification bar has always been a proud feature of Android. developers can display important information to users through an intuitive interface.

In Android 4.1, the notification bar framework has undergone earth-shaking changes. In general, it is bigger, richer, and more direct operations.

Developers can use three different notification styles in the new version of the system, up to 256dp. Users can directly view images, information, emails, reminders, and other content, you can perform one-click callback, one-click Sharing, one-click reply, and other operations.

 

 

 

 

 

 

 

 

3. Brand new search

Search is a feature that Google cannot ignore. In the new version of Android, search will bring three new features: Ui, Intelligent Voice Search, and Google now.

The new UI not only provides a good-looking search box, but also discards the traditional entry results in the display of search results, instead of card display. You must search for a specific content. The results page displays the most relevant content and related information. The new UI allows you to get the desired results faster.

The Intelligent Voice Search function relies on the powerful search library of Google to provide a good experience. But I don't know if it will be cute.

Google Now is a more intelligent information assistant. It will analyze and predict the information you want based on your usual search habits and current use environment, for example, you can display scores and schedules based on your favorite team, and the best route, weather, and vehicle Shift Based on the location and time of commuting. In addition, you will be reminded that you will be late when you leave the office, this is basically "I guess ".

 

 

 

 

 

 

 

 

 

 

4. Automatically resize desktop plug-ins

In the new version of the system, the desktop plug-in can be automatically adjusted. If the desktop space is insufficient, the program logo will automatically pop up and the plug-in space will be reduced to facilitate placement. Based on the plug-in area, different content will be requested from the application for display.

In addition, in terms of UI, jelly bean provides simplified and Unified Task navigation, simple and smooth animation effects, and various display modes conversion (Operation bar, navigation bar, and system bar visible on the normal interface, the status bar, Operation bar hidden, and navigation bar dimmed by night mode, as well as full screen mode hidden by the status bar, Operation bar, and navigation bar), preview and directly use the dynamic wallpaper, higher resolution contact photos (such as 720x720 ).

 

 

5. Enhanced accessibility

In terms of accessibility, the jelly bean API will be more complete, so that users with poor eyesight can better operate their mobile phones. Developers can implement more comprehensive auxiliary functions based on new APIs.

 

 

6. Language and Input Method extensions

The 4.1 version system will better support two-way text display, so that users can use the language displayed from the right to the left can use more languages, the application will also be able to use the new Arabic, Hebrew, and Other Language Environments and related fonts, and will also support Unicode 6.0 characters.

The new system will have 27 built-in keyboard la S and provide only dictionaries for easy input. In addition, the new voice input will support offline mode, so that voice analysis can be completed without the need to connect to the Internet.

　　7. New input types and functions

When a new input device is connected via Bluetooth, USB, or any other connection type, the system will send a notification asking the user to choose whether to switch. For example, you have connected a game controller. The new system also allows applications and games to query the Device Manager and select which device to use for input, and provide a touch of vibration when these devices work.

　　8. New Connection Type

Android beam is a function based on NFC technology. It allows two NFC-supported mobile phones to be quickly touched and shared. In jelly beans, android beam allows you to share images, videos, and other files more easily. After you start a transmission operation, your mobile phone will be transmitted through Bluetooth.

Android 4.1 also introduces the DNS-based network service discovery function, which allows you to search for services including mobile devices, printers, cameras, and players over the Wi-Fi network, developers can use this new feature to implement cross-platform multiplayer online games, or connect their mobile phones to cameras, printers, or other mobile devices.

Peer-to-peer connection is also the direct service discovery function of wifi (P2P). You can enable your mobile phone to enable your wireless network card. You can directly find other mobile WiFi devices without the need for a mobile network or Wi-Fi network, data transmission and resource sharing are enabled. You can use wifi to directly discover shared files and online games.

In the new version, the network bandwidth management function will be added to better cope with traffic statistics and save your own traffic.

　　9. New media features

In jelly beans, the system provides more convenient hardware and software decoder access, supports USB audio output, audio recording triggering, multi-channel audio/video output (HDMI port), AAC 5.1 audio codec support, audio preprocessing provides higher sound quality, and the Media Manager allows users to select the method used for media output.

　　10. browser Enhancement

In 4.1, the android browser and webviews will provide better HTML5 video support, improve the scrolling and scaling performance, and reduce memory usage, HTML5/css3/canvas animation performance, text input, JavaScript Engine (V8) performance have been enhanced.

　　11. Google services

Google provides a new all-free cloud message service, and the Google Play store will also provide encryption measures for apps and settings

Slave binding to prevent piracy.

You do not need to download the complete installation package for smart application updates. You only need to download the modified package to save the flow.

Capacity, endurance, and time.

There will also be the upcoming Google game service.

In addition, there are stronger renderscript computing and camera programs. It is expected that the new version of the system will be launched in middle July.

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