Registers a listener that fires whenever battery state changes.
The listener receives no arguments; call batteryInfo() or read individual
properties inside the callback to determine what changed.
The OS notification subscription starts lazily on the first listener and
is released automatically when the last listener is removed.
Parameters
listener: ()=>void
A function called with no arguments on battery state change.
Registers a listener that fires whenever battery state changes. The listener receives no arguments; call
batteryInfo()or read individual properties inside the callback to determine what changed. The OS notification subscription starts lazily on the first listener and is released automatically when the last listener is removed.