flutter 自定义组件（一）：数量计步器 NumberSte

WechatIMG13.jpeg

//...
              NumberStepper(
                minValue: 1,
                maxValue: 1000,
                stepValue: 100,
                iconSize: 60,
                value: 1000,
                color: Colors.blue,
                style: NumberStepperStyle.system,
                block: (value){
                  DDLog(value);
                },
              ),

              SizedBox(height: 20,),
              NumberStepper(
                minValue: 1,
                maxValue: 1000,
                stepValue: 100,
                iconSize: 40,
                value: 1000,
                color: Colors.blue,
                style: NumberStepperStyle.outlined,
                block: (value){
                  DDLog(value);
                },
            ),

//...

NumberStepper.dart

WechatIMG13.jpeg