Determines when the battery state changes.
The BatteryStateService API lets you know when the battery state changes, that is, its current charge level, whether it is plugged and charging. It uses the BatteryChargeState structure to describe the current power state of Pebble.
Refer to /Examples/watchfaces/classio-battery-connection, which demonstrates using the battery state service in a watchface.
BatteryChargeState battery_state_service_peek | ( | void | ) |
Peek at the last known battery state.
void battery_state_service_subscribe | ( | BatteryStateHandler | handler) |
Subscribe to the battery state event service. Once subscribed, the handler gets called on every battery state change.
handler | A callback to be executed on battery state change event |
void battery_state_service_unsubscribe | ( | void | ) |
Unsubscribe from the battery state event service. Once unsubscribed, the previously registered handler will no longer be called.
struct BatteryChargeState |
typedef void(* BatteryStateHandler)(BatteryChargeState charge) |
Callback type for battery state change events.
charge | the state of the battery BatteryChargeState |