Circuit Timer is simple and easy to use, it allows you to
- specify exercise and break intervals, number of rounds and number of sets for each round
- set a customized image from your device as your exercise timer background. Hopefully that can make your workout less boring.
1. Fix a bug that -1 second was shown at the end of the timer count down.
2. Fix a bug when the settings view is opened the first time.
3. Update app target SDK level to 28.