It’s worth mentioning that Android O Developer Preview packs lots of bugs and various stability issues, as expected. The new version can be installed on Google Pixel, Pixel XL, Pixel C, Nexus 6P, Nexus 5X, and Nexus Player.
Google made the Developer Preview system images available, together with Release Notes that contain additional information on the new Android OS version. The tech giant also mentions that some apps may not function properly and that battery life may be regressed for screen-on and screen-off use cases.
"A number of new features were announced"
Google detailed several new features that developers will find in the first Android O preview. Therefore, this version comes with background limits, which will allow users to improve their phone’s battery life and the device’s interactive performance.
As expected, Google brought notification channels, which are new “app-defined categories for notification content.” It will give developers the option to control different kinds of notifications, and users the ability to block or change the behavior of each channel individually. New visuals and grouping tools were also added.
Moreover, this version introduces new autofill APIs for apps to store and secure data per user request. Picture-in-picture display was made available on phones and tablets so users can work on multiple apps at the same time. Google also added a new app overlay window and multi-display support for launching an activity on a remote display.
Adaptive icons in Android O
Another change is adaptive icons that are displayed in different shapes, based on user preference. Connectivity options for Bluetooth and WiFi were also added, together with wide-gamut color for app developers.
This release is mainly targeted at developers, while a stable version of Android O is expected to be announced later this year, after a number of developer previews are released.