Similar to last year's Android N, Google quietly released the latest Android O developer preview before the I/O conference this year. If nothing happens, the version number will jump to 8.0. As for the dessert code beginning with "O", it is estimated that "Oreo" will win the first place if netizens are asked to vote like last year. Don't talk nonsense. Let's see what new features Android O has.

P. S. Android O Developer Preview only supports Nexus 5X, Nexus 6P, Nexus Player, Pixel, Pixel XL and Pixel C for the time being. The flash image can be downloaded directly from the developer's official website.

Minor UI changes

After the update to Amdroid O, the UI has not changed much. The home page only has some minor adjustments. The icon has some changes compared with Android 7.0. The biggest change is the setting interface, which cancels the Hamburg menu on the left. The overall menu becomes more concise and regular, and the color matching is also quite "cold" - mainly black, white and gray. I don't know whether the original Hamburg menu will be restored in the subsequent preview version. After all, the current setting options are still lacking.

Re optimization of notification center

Google has provided app integration features for the notification center on Android 7.0. This time, the notification center on Android O provides more APIs for developers to customize, such as using Notification Channel to distinguish the priority of notifications to be displayed. Users can call out the setting menu in the notification center of Android O, and after entering, they can set the corresponding app separately to achieve more personalized reminders.

Super strong Pin

The update of nougat has brought a long press pop-up menu similar to 3D Touch, and can also pin shortcuts directly to the desktop. In addition to maintaining this function, Android O has also added the feature of pining app widgets directly to the desktop. However, so far, no app supporting this feature has been found, including system applications, so the actual effect remains to be verified.

Background management enhancement

Unlike iOS, Android's background management is always criticized, so domestic manufacturers often add background restrictions to their models, automatically clear the background occupied apps and other functions. Google has also enhanced the background. Background execution limits are a new feature: when an app is thrown into the background, the system will automatically limit the network GPS、 The occupation of memory and other aspects makes the hardware resources play a better role, improving the smoothness of the system and enhancing the endurance. With the Doze mode of the system, I believe that the domestic rogue app will have a headache this time.

More stringent authority

In addition to the strengthening of background control, Google has also further strengthened its access to apps. The unknown sources in the original settings are all external sources in Android O, and each app needs to be set separately during installation. By default, they are all disabled, including Google Play. For those rogue apps who want to install the whole family bucket silently, the wall is getting higher and higher.

PIP Mode

In the last version of Android 7.0, Google added a relatively simple and crude split screen function. This time, it brought the picture in picture (PIP) mode that had appeared in domestic models before. This function has been barely implemented on YouTube app before, but it is the first time to apply it in the global system. The Nexus 5X on our hand has relevant options in the settings, but it is unclear why it cannot be enabled.

Adaptive icon

A major change in Android O's UI is that it supports adaptive icons for special effects, which can be transformed according to different UI, display different icons in different scenes, and also support interactive animation. I hope that domestic app developers can take this opportunity to improve the uniformly rounded rectangular icons.

Wide color gamut support and wireless connectivity

In the API description document, Android O has added color management and Wi Fi awareness functions, which is good news for machines that have used a wide gamut screen, although the Nexus 5X on hand has not changed much. The Wi Fi perception from Google's promotional videos feels very suitable for such scenarios as pushing emergency information in public places. At the same time, Google said that Sony is also assisting in the development. Android O devices can support LDAC Bluetooth transmission to improve the quality of wireless transmission.

More beautiful font

In this update, developers can now edit XML in Android Studio and add source font files to provide a better visual experience for developed apps. It is a good thing for some text reading app developers. I believe that unique fonts can also enhance the appeal of apps.

More APIs

The above are basically the parts that users can see or experience directly in use. In fact, Google has done more work behind Android O, and has provided a lot of new APIs compared with Android 7.0, such as auto filling framework The new API of WebView control, multimedia optimization, multi screen support, etc. can improve the user experience, and developers can also use the new API to achieve more functions.

Finally, there is no change in the current egg of Android O or the original 7.0 pet kitten. I wonder which developer preview version will add the egg of Android O?

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