Simple Battery Graph

May 18, 2019

Ver.1.3.2
- Add option to choose font size

Ver.1.3.1
- Fix string resources

Ver.1.3.0
- Change targetSdkVersion to 26
- As a result, background service is killed by OS, so made it foreground service by showing Notification and changed to wake it periodically. (You can hide the Notification by settings that is appeared by sliding Notification horizontally)
- In addition, Ver.1.2.x is more lightweight than Ver.1.3.x if OS doesn\'t enter Doze. So kept it separately.