----VeryFit2.0 main functions -
1. including exercise, sleep quality monitoring, smart alarm clock to wake up
2.etc.Application's live view through physical activity and Kaluri's consumption, monitoring the effect of walking and running.
3. when VeryFit2.0 enters the sleep state to monitor, record the deep and shallow sleep, sleep time, sleep to help users monitor their sleep quality.
4.because the application needs to realize the background reminder, so it has been running in the background.
5.connect sync data to HealthKit , achieve exercise data, sleep data and consumption of calories synchronously recorded to HealthKit.