twong-customer/lib/utils/index.dart

import 'package:flutter/material.dart';

class Utils {
  static void showConfirmDialog(BuildContext context,String content, Function confirmCallback) {
    showDialog(context: context, builder: (context) {
      return new AlertDialog(
        title: new Text("提示"),
        content: new Text(content),
        actions: <Widget>[
          new FlatButton(
            onPressed: () {
              confirmCallback();
              Navigator.of(context).pop();
            },
            child: new Text("确认"),
          ),
          new FlatButton(
            onPressed: () {
              Navigator.of(context).pop();
            },
            child: new Text("取消"),
          ),
        ],
      );
    });
  }
}

class NetError implements Exception {
  String msg;

  NetError(this.msg);

  @override
  String toString() {
    return msg;
  }
}