huixiang_app/lib/view_widget/round_button.dart

import 'package:flutter/material.dart';

class RoundButton extends StatelessWidget {
  final String text;
  final String img;
  final Widget icons;
  final Color textColor;
  final Color backgroup;
  final double fontSize;
  final double radius;
  final double height;
  final double width;
  final FontWeight fontWeight;
  final EdgeInsetsGeometry padding;
  final GestureTapCallback callback;

  RoundButton({
    Key key,
    this.text,
    this.textColor = Colors.black,
    this.fontSize = 10,
    this.backgroup = Colors.white,
    this.radius = 2,
    this.img,
    this.height,
    this.width,
    this.icons,
    this.padding,
    this.fontWeight = FontWeight.normal,
    this.callback,
  });

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      child: Container(
        padding: padding,
        width: width,
        height: height,
        alignment: Alignment.center,
        decoration: BoxDecoration(
          color: backgroup,
          borderRadius: BorderRadius.circular(radius),
        ),
        child: buildText(),
      ),
      onTap: this.callback,
    );
  }

  Widget buildText() {
    Widget textWidget = Text(
      text,
      style: TextStyle(
        color: textColor,
        fontSize: fontSize,
        fontWeight: fontWeight,
      ),
    );
    if (icons != null) {
      return Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          icons,
          SizedBox(
            width: 4,
          ),
          textWidget,
        ],
      );
    } else if (img != null && img != "") {
      return Row(
        children: [
          Image.asset(
            img,
            width: 12,
            height: 12,
          ),
          SizedBox(
            width: 4,
          ),
          textWidget,
        ],
      );
    } else {
      return textWidget;
    }
  }
}