Android is all about customization, and the aftermarket development community is the driving force behind that liberty. The developers often come up with creative ideas to re-use an existing design component in a completely different way than the one it is intended for. Take the example of Energy Notch by XDA Recognized Developer jagan2 - a cool app that puts the display-notch of the OnePlus 6T to use by turning the space around the notch into an animated battery indicator.

Energy-Notch-Charging-Animation
Energy Notch in action

Soon after releasing the initial version of the app, the developer has started collecting feedback from the owners of several other smartphones having notched display panels in order to expand the list of supported devices. The latest version of Energy Ring, tagged as EN_1.2, now supports the OnePlus 6, OnePlus 7, and the OnePlus 7T. Besides OnePlus, the app is now fully compatible with a bunch of phones from different OEMs, namely the Xiaomi Mi 10 Lite 5G (and its Chinese variant, the Mi 10 Lite Zoom/Mi 10 Youth Edition 5G), the Redmi Note 7/Note 7S, the Poco F1, and the Motorola One Power. In case you can't find your phone in the list, just drop a private message to the developer asking to add support for the particular device.

The device-specific discussion threads are listed below.

There are a few extra features for paid users, but the base version does offer enough customization options such as configuring the width, changing colors based on battery level, defining the direction of depletion, and many more. The app consumes a very little CPU horsepower, thus users shouldn't worry about battery draining.

[appbox googleplay "you.in.spark.energy.notch"]