Beginning with Android 4.1 “Jelly Bean”, “expandable notifications” allow the user to tap an icon on the notification in order for it to expand and display more information and possible app actions right from the notification. This status bar can be pulled (swiped) down to reveal a notification screen where apps display important information or updates, as well as quick access to system controls and toggles such as display brightness, connectivity settings (WiFi, Bluetooth, cellular data), audio mode, and flashlight. Most manufacturers customize the look and features of their Android devices to differentiate themselves from their competitors. The response to user input is designed to be immediate and provides a fluid touch interface, often using the vibration capabilities of the device to provide haptic feedback to the user. The platform is also focused on supporting developers with tools like ARCore and Unity to build applications for upcoming XR devices.
