It has been four years since Google released its Android system in 2008 Beijing time. Today, many people are complaining about the Android system. In fact, the Android system has undergone tremendous changes in recent years, and the update cycle is quite fast. Let's review the previous versions of Android. Which version did you start using?

Evolution process of previous versions of Android system

I Android 1.0 released in September 2008

II Android 1.5 Cupcake, on April 30, 2009, the official version 1.5 (Cupcake) of Android was released. The main updates are as follows:

1. Shoot/play movies and support uploading to YouTube

2. Support stereo Bluetooth headset and improve automatic pairing performance

3. The latest browser using WebKit technology, supporting copy/paste and search in the page

4. GPS performance greatly improved

5. Provide screen virtual keyboard

6. Add music player and photo frame widgets to the home screen

7. The application automatically rotates with the phone

8. SMS, Gmail, calendar and browser user interface have been greatly improved. For example, Gmail can delete emails in batches

9. The camera starts faster, and pictures taken can be directly uploaded to Picasa

10. Caller photo display

III Android 1.6 Donut (doughnut), September 15, 2009, the 1.6 (Donut doughnut) software development kit was released. The main updates are as follows:

1. Redesigned Android Market gestures

2. Support CDMA network

3. Text to Speech

4. Quick search box

5. New photo interface

6. View application power consumption

7. Support virtual private network (VPN)

8. Support more screen resolutions.

9. Support OpenCore2 media engine

10. New easy-to-use plug-ins for people with visual or hearing difficulties

IV Android 2.0/2.0.1/2.1 Eclair (muffin), October 26, 2009, 2.0 (Eclair muffin) software development kit was released. The main updates are as follows:

1. Optimize hardware speed

2. "CarHome" program

3. Support more screen resolutions

4. Improved user interface

5. New browser user interface and HTML5 support

6. New contact list

7. Better white/black background ratio

8. Improved Google Maps 3.1.2

9. Support for Microsoft Exchange

10. Support for built-in camera flash

11. Support digital zoom

12. Improved virtual keyboard

13. Support Bluetooth 2.1

14. Support the design of dynamic desktop

V Android 2.2/2.2.1 Froyo (frozen yogurt), May 20, 2010, software development kit version 2.2 (Froyo frozen yogurt) was released. The main updates are as follows:

1. Greatly improved overall performance

2. 3G network sharing function.

3. Flash support.

4. App2sd function.

5. New software store.

6. Development of more web application API interfaces.

VI Android 2.3 Gingerbread (Gingerbread), December 7, 2010, 2.3 (Gingerbread Gingerbread) software development kit was released. The main updates are as follows:

1. Added new garbage collection and optimized processing events

2. Native code can directly access input and sensor events EGL/OpenGLES、OpenSLES。

3. New management window and lifecycle framework.

4. Support VP8 and WebM video formats, provide AAC and AMR broadband coding, and provide new audio effectors

5. Support front camera, SIP/VOIP and NFC (near field communication)

6. Simplify the interface and speed up:

7. Faster and more intuitive text input:

8. One click text selection and copy/paste:

9. Improved power management system:

10. New application management mode:

VII On February 2, 2011, Android 3.0 Honeycomb was updated as follows:

1. Optimization for slabs

2. Newly designed UI enhances web browsing

3. N-apppurchases function

Android 3.1 Honeycomb was announced at the Google I/O developer conference on May 11, 2011. The main updates are as follows: Honeycomb (improved 3.0 BUG), optimized Gmail email; Fully support Google Maps; The Android mobile system will be merged with the tablet system again to facilitate developers. The task manager can scroll and support USB input devices (keyboard, mouse, etc.)., Support Google TV. Support the changes of XBOX360 wireless handle widget support, and it is easier to customize the screen widget plug-in.

Android 3.2 Honeycomb, released on July 13, 2011, is updated as follows: it supports 7-inch devices and introduces the application display zoom function.

VIII Android 4.0 Ice Cream Sandwich was released in Hong Kong on October 19, 2011.

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

1. New ui

2. The new Chrome Lite browser has offline reading, 16 tabs, invisible browsing mode, etc.

3. Screenshot function

4. More powerful picture editing function

5. Its own photo application is comparable to Instagram. It can add filters and frames to take 360 degree panoramic shots. Photos can also be sorted according to location

6. Gmail adds gesture and offline search functions to make the UI more powerful.

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

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

9. Running programs can switch to each other like computers

10. Face recognition function

11. System optimization and faster speed

12. Support virtual keys, the phone can no longer have any keys

13. More intuitive program folder:

14. Common to tablet and smart phone

15. Support for greater resolution

16. Optimized drivers written for dual core processors

17. New 18. Enhanced copy and paste function

19. Voice function

20. New notice bar:

21. More abundant data transmission functions

22. More sensors support

23. Speech recognition keyboard:

24. New 3D driver, improved game support

25. New Google electronic market

26. Enhanced desktop plug-in customization

Before the official release of Android, there were two internal test versions at the beginning, and they were named after famous robots, namely Astro Boy (Android Beta) and Clockwork Robot (Android 1.0). Later, due to copyright issues, Google changed its naming rule to use dessert as the code name of their system version. Dessert naming began when Android 1.5 was released. The size of desserts represented by each version becomes larger and larger, and then according to the order of 26 letters: cupcake (Android 1.5), doughnut (Android 1.6), muffin (Android 2.0/2.1), frozen yogurt (Android 2.2), gingerbread (Android 2.3), beehive (Android 3.0), ice cream sandwich (Android 4.0), jelly bean (Jelly Bean), The next version after jelly beans is lime pie (Android 6.0).