flutter_countdown_timer 4.1.0

A flutter countdown timer. [10 days 5:30:46] ⬇⬇⬇⬇

[4.1.0] - 2021/4/21 20:20

• Add countdown onEnd event.

[4.0.2] - 2021/3/21 11:01

• Add millisecond animation.

[4.0.1] - 2021/3/21 11:00

• Fixed: https://github.com/wuweijian1997/FlutterCountdownTimer/issues/31

[4.0.0] - 2021/3/6 13:34

• Upgrade null safety

[3.0.1] - 2021/2/22 8:39

• Fixed: https://github.com/wuweijian1997/FlutterCountdownTimer/issues/25

[3.0.0] - 2021/1/17 22:06

• Add notes.
• Modify part naming.

[2.1.0] - 2020/1/1 23:03

• Add endTime and onEnd

[2.0.1] - 2020/1/1 13:24

• Add textStyle

[2.0.0] - 2020/12/27 12:46

• https://github.com/wuweijian1997/FlutterCountdownTimer/issues/18

[1.6.0] - 2020/12/16 14:06

• add FlutterCountdownController

[1.5.0] - 2020/11/27 1:59

• add Countdown widget

[1.4.0] - 2020/9/29 21:47

• fix: display 0 seconds then do onEnd after 1 sec

[1.3.0] - 2020/9/29 21:35

• feat: widgetBuilder
• feat: example demo

[1.2.0] -

• feat: emptyWidget
• docs: update demo code

[1.1.0] -

• fix zero not to display
• add onEnd function

[1.0.0] -

• init Countdown