System version of android system

Release date: Released in February 2009

Main features of Android 1.1:

Alarm clock

API example

Browser

Calculator

Camera

Contacts

Development Kit

Dial-up application

Email

Map (including street view)

Information services

Music

Pictures

This version is also called "Cupcake". This is the first major version, released in May 2009. After this upgrade, the capabilities displayed by Android really attracted the attention of developers. The user interface has been greatly improved, and the following functions have been added:

Main features of Android 1.5:

Recording

Bluetooth A2DP

< p>Automatic Bluetooth connection

Upload videos to YouTube and Picasa

Copy/paste function HTC Hero equipped with Android 1.6 has achieved unexpected success. Android finally gained the attention of non-Android users and made competitors Apple and Microsoft more wary. Android 1.6 “Donut” was released in September 2009. This version includes:

Main features of Android 1.6:

Android application market integration

Photography, video and browsing, multi-select/delete function

Gesture search

Voice search application integration

Greatly improves the voice reading function

Better support for non-standard resolutions 2.0 /2.1: On October 26, 2009, another major version upgrade was released in record time. This time, the major version has been upgraded to Android 2.0/2.1 “Eclair.” It includes:

Main features of Android 2.0/2.1 improve hardware speed

More screen and resolution options

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Significantly improved user interface

Supports Exchange live wallpaper

Significantly improved virtual keyboard

Bluetooth 2.1

Google Maps 3.1.2

Android 2.0.1 SDK was released on December 3, 2009, followed by version 2.1 on January 10, 2010. Many users and onlookers may wonder: "Why does Android use dessert as the codename of their system version?" This naming method started when Andoird 1.5 was released. The desserts represented by each version become larger in size and then in alphabetical order: trifle, donut and waffle. It was previously expected that the code name of version 2.2 would be "Pie", but this was ultimately proved to be wrong. "FroYo" (frozen yogurt) is the latest code name of Android 2.2, a new version released with Google Nexus One. The next version will be codenamed "Gingerbread". The version is called "Froyo", codenamed "frozen yogurt" in Chinese. Nexus One users have begun to receive the over-the-air update to Android 2.2 "FroYo", and users of other models should get this update in a short time.

This version contains a number of updates that have other mobile phone users drooling, including:

Key features of Android 2.2

Full Flash 10.1 support

Up to 5 Double speed improvement

Mobile hotspot function that supports up to 8 device connections

Improved home screen with dedicated links

Extensive Exchange support improvements, support for Exchange 2010

Camera/video improvements

Multiple keyboard language support

Android cloud messaging installs apps on memory card

Bluetooth voice dialing< /p>

Support 720P video recording In the early morning of December 7, 2010, Google officially debuted its Android 2.3 Gingerbread system. Compared with version 2.2, the new version of Android system has been effectively improved in many aspects. Let’s take a look at what improvements there are.

1. The user interface is more beautiful

2. Improve the game experience

3. Improve multimedia capabilities

4. Add official process management

5. Improved power management

6. NFC near field communication

7. Global download management

8. Improved virtual keyboard

9. Native support for front-facing camera

10. SIP Internet phone On February 2, 2011, version 3.0 (Honeycomb) was mainly updated as follows:

·Optimized for tablets

·Newly designed UI to enhance web browsing functions

·The n-app purchases function was announced at the Google I/O Developer Conference on May 11, 2011. The main updates of the version are as follows:

Honeycomb (improved on 3.0BUG)

Optimized Gmail email;

Full support for Google Maps

Merge the Android mobile phone system and tablet system again to facilitate developers.

The task manager is scrollable and supports USB input devices (keyboard, mouse, etc.).

Supports Google TV. Can support XBOX 360 wireless controller

Changes in widget support make it easier to customize the screen widget plug-in. Released on July 13, 2011, the Honeycomb version was updated as follows:

Supports 7-inch devices

Introduced the application display zoom function. Released in Hong Kong on October 19, 2011.

The main updates of the 4.0 (Android 4.0) Ice Cream Sandwich version are as follows:

1. Brand new ui

2. Brand new Chrome Lite browser, with offline functionality Reading, 16 tabs, private browsing mode, etc.

3. Screenshot function

4. More powerful picture editing function

5. The built-in photo application is comparable to Instagram, you can add filters and photo frames , perform 360-degree panoramic shooting, and photos can be sorted according to location

6. Gmail has added gestures and offline search functions, and the UI is more powerful.

7. New function People: With contact photos as the core, the interface focuses on sliding rather than clicking, and integrates communication tools such as Twitter, Linkedin, and Google+. It is expected to support users to customize third-party services.

8. A new traffic management tool is added to specifically view the traffic generated by each application.

9. Running programs can be switched between each other like a computer

10. Face recognition function

11. System optimization and faster speed

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12. Support virtual buttons, the phone no longer has any buttons

13. More intuitive program folder:

14. Common to tablets and smartphones< /p>

15. Support larger resolutions

16. Optimized driver specially written for dual-core processors

17. Brand new Linux kernel

< p>18. Enhanced copy and paste function

19. Voice function

20. New notification bar:

21. Richer data transmission functions

p>

22. More sensor support

23. Voice recognition keyboard:

24. Brand new 3D driver, improved game support

< p>25. New Google Electronic Market

26. Enhanced desktop plug-in customization Android 4.2 is Google’s new generation mobile operating system. It follows the name of version 4.1 “Jelly Bean” , which is very similar to Android 4.1, but some improvements and upgrades have been made after the details. The more important ones include: Photo Sphere panoramic photography; keyboard gesture input; Miracast wireless display sharing; gestures to zoom in and out the screen, and for Voice output and gesture mode navigation functions designed for blind users. Of particular concern is the new malware scanning feature Google has added to Android 4.2.

Introduction to Android 4.2

Google was originally scheduled to hold an Android conference on October 30, 2012, but it was temporarily canceled due to the impact of Hurricane Sandy.

However, Google still released the new Android 4.2 system through its official blog, and also released the Nexus 4 smartphone and Nexus 10 tablet computer based on this operating system.

The highlight of the Android 4.2 operating system is support for the industry-standard WiFi display sharing tool Miracast, which allows the Nexus 4 to stream audio and video to a TV. Miracast set-top boxes for existing TVs are expected to be available in the near future, and several companies may offer such products. Google expects the Miracast set-top box to be priced at well under $99.

Also released online this time is the fourth-generation mobile phone of the Google Nexus series, LG Nexus 4. It is equipped with a 4.7-inch 1280*768 resolution screen, using LG True HD screen display technology, and the surface is Corning Gorilla It uses 2nd generation tempered glass and is equipped with Qualcomm Snapdragon S4 Pro quad-core processor and 2GB RAM. It has a rear 8-megapixel camera and supports wireless charging. In terms of price, the 8GB version of LG Nexus 4 is priced at US$299, approximately RMB 1,900; the 16GB version is priced at US$349, approximately RMB 2,200, significantly lowering the price threshold. The latter will also have a customized version for T-Mobile operators, priced at $199 with a two-year contract.

Another product is the Nexus 10, a tablet computer developed by Google and Samsung. It adopts an arc design and uses the latest Android 4.2 system. The screen resolution is 2560x1600 pixels and the pixel density reaches 300ppi. It is currently the most popular tablet on the market. The highest resolution tablet on sale. In terms of hardware, it uses Cortex A15 architecture, 1.7GHz Exynos 5250 processor, and 2GB RAM. The camera is 5 million pixels and supports NFC, Wi-Fi, Bluetooth and other functions. The 16GB version is $399, and the 32GB version is $499.

Android 4.2 will be available with the Nexus 4 and Nexus 10, and other Nexus devices such as the Galaxy Nexus and Nexus 7 are also expected to receive the update in the coming weeks.

The code name of the Android4.2 operating system follows Jelly Bean, and the world's first Nexus 10 tablet equipped with Android 4.2 was launched.

Top Ten Features of Android 4.2

1. Complete Chrome Browser

The changes in the web browser of Android 4.2 will be very popular, supporting tabbed browsing System and bookmark synchronization. This design is to make the use of mobile phones and tablets the same as using traditional PCs.

2. Brand new landscape mode for mobile phones

As Android 4.2, it will integrate mobile phones and tablets. When using a mobile phone, you can use a landscape mode similar to the size of a tablet, and Can be reversed.

3. Brand-new file manager

Android 4.2 will integrate a brand-new file manager, allowing users to conveniently manage files on the SD card without relying on third-party software. Third party software.

4. Improvements in text input options

Android 4.2 redesigned the keyboard layout and even omitted useless numbers and symbols.

5. A clear upgrade method

Google seems to be very tired of the various chaotic scenes after upgrading the operating system, so when it releases the upgrade in May, Google must ensure that The operating system can be upgraded only if the hardware has sufficient indicators. Hopefully, in this new version of Android 4.2, hardware requirements will no longer be a problem, which will allow all users to use the new Android version.

6. Android Key Lime Pie Lite Edition

This version is a bit like a Windows XP netbook, with most functions, but has slightly lower hardware requirements.

7. User interface with switch switching

Many Android manufacturers will customize Android to help mobile phones better serve users. But at the same time, it would be a nice feature to be able to deactivate some of the UI and revert to standard Android.

8. New power management system

The new power management system will effectively allocate the rational use of the battery, for example, sacrificing the speed of browsing and scrolling down the page to gain 20 minutes for sending text messages. time.

9. A lighter theme mode

Android 4.2 is beautiful, not just white text on a black background. Of course, we can use different pictures as backgrounds.

10. New lock screen page

When entering the lock screen page, Google has tried to put some information about incoming calls and messages. Although there are some security risks in doing so, Android should be able to manually control the switch of this function.

11. Brand-new clock interface

The system’s built-in clock has made leaps and bounds in 4.2. The world clock, timer and stopwatch functions that were originally missing have all appeared, and are very refined. Released on July 25, 2013

New features

1. User account configuration

In Android 4.2, Google added a multi-account function to the tablet. It is similar to the related functions of Windows desktop system. On Android 4.3, users can configure different accounts to limit the functionality of a certain account. For example, you can restrict in-app purchase permissions for child accounts and deny access to an app to child accounts, similar to the Kids Center on Windows Phone 8. Developers can also allow applications to display different functions based on different types of accounts.

2. Automatic completion of dial pad contacts

For users who use third-party Android UI, this function has long been available, but native Android enters the contact from or through Search box. Android 4.3 can automatically search for contacts when entering numbers and names into the dial pad.

3. OpenGL 3.0

OpenGL 3.0 can make the game smoother and the picture rendering more refined.

4. Bluetooth Low Energy Technology Android 4.3 introduces Bluetooth Low Energy technology on Bluetooth, which can be adapted to various energy-saving devices and also reduces the battery consumption of the device itself. In the demonstration, a person performed a full-body exercise on stage while his heart rate was displayed in real time on his phone.

5. Keep location function after WiFi is turned off

In addition to the function of connecting to the network, WiFi also has an important positioning function. WiFi can play a positioning role when GPS is turned off. In previous Android versions, the positioning function would disappear if WiFi was turned off. However, Android 4.3 can still scan when WiFi is turned off, thereby playing a positioning role, and battery consumption is also significantly reduced.

6. Other features New camera application UI New developer tools When sharing screenshots via email, the date and time will be automatically added. Android 4.4 is a mobile operating system code-named KitKat produced and developed by Google. The name of the new Android version was announced in the early morning of September 4, 2013, Beijing time, as Android 4.4 (code-named KitKat).

1. Supports two compilation modes

In addition to the default Dalvik mode, it also supports ART mode.

2. RAM optimization

Android 4.4 KitKat has been optimized for RAM usage and can even run smoothly on some older phones with only 512MB of RAM. It also further optimizes the running effect of the system on low-end hardware, supports kernel same-page merging KSM, and zRAM swap, which seems to be to better run on many smart wearable devices.

3. New icons, lock screen, startup animation and color scheme

The previous blue-green color design has been replaced with white/grey, which is more simple, and the icon style is further flattened ization, and also has some new animations built in. Overall, the interface is more beautiful and takes up less resources. In addition, a translucent interface style has been added to ensure that the status bar and navigation bar work better in the application.

4. New dialing and smart caller ID

First of all, the new dialing program will automatically and intelligently recommend commonly used contacts based on your usage habits to facilitate quick dialing; at the same time, Incoming calls from well-known business or service numbers will automatically display names using Google's online database for matching, even if they are not stored on your phone.

5. Enhance the active voice function

On Nexus 5, you can activate the voice function by saying "OK, Google" without touching any buttons or screen. But not all models are supported. In addition, the accuracy of the voice search function has also been improved by 25%, making it more accurate, and it also supports new functions such as buying movie tickets.

6. Integrated Hangouts IM software

Android 4.4 integrated with GMS has built-in Hangouts IM software, which is similar to domestic WeChat and can realize cross-platform text and voice chat functions. Transfer various files such as pictures and videos.

7. Full-screen mode

Whether you are reading an e-book or using any application, you can easily enter the full-screen mode and hide the virtual buttons for more immersion. usage experience. Just slide the edge of the screen to find the keys, which is also very convenient.

8. Support Emoji keyboard

Finally, Android can also support rich and interesting Emoji input, which can make your emails or messages more personalized.

9. Easily access online storage

You can directly open files stored in Google Drive or other cloud storage on your mobile phone or tablet, and support software such as photo albums or QuickOffice. Very convenient.

10. Wireless printing

You can use Google Cloud Print to wirelessly print photos, documents or web pages on your phone. Other printer manufacturers will quickly follow suit and release related applications.

11. Screen recording function

Android 4.4 adds a screen recording function. You can record all operations on the device as an MP4 video and select the aspect ratio or bits. rate, and even add a watermark.

12. Built-in subtitle management function

You can add subtitles when playing videos.

13. Pedometer application

Android 4.4 has built-in fitness applications such as pedometer. Google is also stepping up cooperation with chip manufacturers to prepare for future smart watches.

14. Low-power audio and positioning modes

Android 4.4 adds low-power audio and positioning modes to further reduce the power consumption of the device.

15. New contact payment system

Although Google Wallet has not been officially launched, a new contact payment function has been added to Android 4.4. Through NFC and smart cards, you can Complete payment easily on your mobile phone.

16. New Bluetooth profiles and infrared compatibility

Android 4.4 has two new Bluetooth profiles built in, which can support more devices and consume less power. Including mouse, keyboard and controller, it can also exchange maps with car Bluetooth. In addition, the new infrared remote control interface can support more devices, including TVs, switches, etc. In 2014, Google is adjusting the Android system. To put it simply, ART has replaced Dalvik as the default option. The Dalvik virtual machine has always been accused of lagging Android applications. The reason is that when the application is running, the virtual machine Dalvik dynamically compiles and executes it through an interpreter called JIT (Just-in-time). This This process also slows down operational efficiency.

In sharp contrast, the ART mode performs pre-compilation operations when the user installs the application, advancing the compilation action when the program is running to the time of application installation. By eliminating the need to interpret code, applications will run more efficiently.

In addition, when some developers submitted code to the Android open source project, they found that ART has replaced Dalvik as the default option, but Dalvik has not been abandoned. This is undoubtedly good news for those who arrived in 2014. For the major revision of Android L, its system execution efficiency will be higher.

Google announced that the interface of Android L will have greater changes compared to the 4.x version. At the same time, the system will also enhance the tablet user experience.

The Android 5.0 system is completely converted from Dalvik to ART, so that the smooth experience that iOS developers and its users are proud of will no longer be something worth showing off.

Android 5.0 also brings 5,000 new APIs to developers, making devices more integrated and interconnected. Google said that songs, photos, applications and search results can all be seamlessly synchronized on various Android devices. This is the user experience that Android 5.0 wants to present. In addition, Android 5.0 also includes new features such as new battery mode, multi-account login, guest mode, and unlocking via Bluetooth devices.

In general, Android 5.0 is a major update after 4.0. Google also hopes to use the new version to better unify Android’s user experience and device interaction capabilities, which is worth looking forward to.

The following are the new features of Android 5.1 reviewed by AndroidPit:

Restore the silent mode that was absent in Android 5.0;

System stability has been generally improved;

RAM management has been improved;

The software crash problem has been fixed;

Battery management has been improved;

The problem of Wi-Fi automatically switching to mobile mode has been fixed;< /p>

Wireless connection issues have been fixed;

Okay Google functionality issues have been resolved;

Notification center issues have been resolved;

Sound issues on some devices Fixed;

Some other upgrades and changes;

Material Design palette changed.