First of all, the new version of the system adopts a brand-new processing architecture, and the support for multi-core processors has finally arrived. Dual-core and quad-core processors in Android devices will be better optimized and show strong performance. (PS: People who used to spray Android but didn't optimize for multi-core processors will lose their spray points, and multi-core users will cheer. )
Secondly, in the new system, the frame rate of special effects animation is increased to 60fps, and 4. 1 system will optimize the best performance and low touch delay, and provide a smooth and intuitive user interface. (PS: If the Android interface is not smooth before, you will lose the spray point. )
In order to ensure the consistent frame rate, all drawings and animations in the Android framework of version 4. 1 will be synchronized with VSYNC, and operations such as application rendering, touch event, picture composition and display refresh will be locked in16ms, and all frames will not go forward or backward.
Android 4. 1 also adds triple buffering to make the rendering feel smoother. Touch delay will not only follow the VSYNC timing, but also predict and render in advance during touch operation. In addition, when the CPU is idle, more processing power will be allocated to handle touch events to ensure that the touch is not delayed.
2. Enhance the notification bar
In Android 4. 1, the notification bar framework has undergone earth-shaking changes, which is bigger, richer and more direct.
Developers can use three different notification styles in the new version of the system, up to 256dp. Users can directly view pictures, information, emails, reminders and other contents, and can perform one-click callback, one-click sharing, one-click reply and other operations. (PS: It has been revised again. Come and copy it )
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Higher resolution contact photos (such as 720X720). (PS: This time, I also have the head of the contact. )
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Android 4. 1 also introduces a DNS-based network service discovery function, which can discover services including trigger devices, printers, cameras and players. Through this new function, developers can realize cross-platform multiplayer online games and other functions, and can also connect mobile phones to cameras, printers or other mobile devices.
Peer-to-peer connection is also a WiFi direct service discovery function (P2P), which allows mobile phones to open their own wireless network cards, and can directly find other mobile WiFi devices without mobile networks and WiFi networks, and then connect for data transmission and resource sharing. Use WiFi direct service to discover that you can share files, online games, etc. (PS: fast teeth mean great pressure. People who have used fast teeth should know how powerful and practical this function is, and this upgrade seems to be more and more fierce than the fast teeth function, and it is foreseeable that the related applications will be unlimited)
Network bandwidth management function will be added in the new version to better cooperate with traffic statistics and save your own traffic.
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9. New media functions
In jelly bean, the system provides more convenient access to software and hardware decoders, supports USB audio output, recording trigger, multi-channel audio and video output (HDMI port), and supports AAC 5. 1 audio codec. Audio preprocessing will provide higher sound quality, and the media manager will allow users to choose which way to use for media output. . (PS: People who used to spray Android with poor sound quality will lose another important spray point. Come on, Mobile Music Party. )
10. Browser enhancement
In 4. 1, Android browser and WebViews will provide better HTML5 video support, enhance scrolling and zooming performance, and reduce memory usage. The animation performance, text input and JavaScript engine (V8) performance of HTML5/CSS3/Canvas will be enhanced. . (PS: Is the advantage of HTML5 that Apple is proud of gone? )
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There is also the upcoming Google game service.
In addition, there are more powerful renderscript calculations, camera programs and so on.
[repost] Android 4. 1 audio leap
By studying the Android 4. 1 jelly bean system on Google's Nexus 7 tablet, we find that the Android system has finally made great improvement in audio delay, and this is an improvement in software, not for the Nexus 7 tablet, because
The delay of Galaxy Nexus in Android 4.0 ICS system is above 100ms because its audio system is really poor, but after upgrading to Android 4. 1 JB system, the delay is greatly reduced to below10 ms. ..
Although there is still room for improvement, at least it is certain that those excellent applications on iOS have the opportunity to be transplanted to Android.
In fact, Android 4. 1 has made many improvements in audio, including:
-New software mixer and improvement of audio related API are provided.
-Start supporting USB audio devices.
-Multi-channel audio (including multi-channel audio that can be transmitted through HDMI)
-Recording function trigger
-Audio processing function
-Media channel (similar to Apple's AirPlay)
-Audio chain, which allows multiple applications to play sounds seamlessly together.
-Media encoding and decoding support at the hardware and software level of the platform.
At least for music application developers, the upgrade of 4. 1 is developing in a good direction. Will music and audio applications on Android explode?
I can't feel the difference!
Running score cannot be used as an indicator. The scores you run at different times are different. It is normal for others to run 8000, and many people run higher! You can't just listen to others unless you try new things yourself!
That s voice is a software, just go online and find a Chinese version to download!