AlertDialog组件属性及描述

属性名	类型	说明	默认值	取值
actions	List	对话框底部操作按钮
title	Widget	对话框标题
titlePadding	EdgeInsetsGeometry	标题部分间距
content	Widget	对话框的提示内容
contentPadding	EdgeInsetsGeometry	内容部分间距

[

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'AlertDialog组件示例',
      home: Scaffold(
        appBar: AppBar(
          title: Text('AlertDialog')
        ),
        body: AlertDialog(
          title: Text('AlertDialog'),
          content: SingleChildScrollView(
            child: ListBody(
              children: <Widget>[
                Text('是否删除数据?'),
                Text('此操作不可恢复!')
              ],
            ),
          ),
          actions: <Widget>[
            FlatButton(
              child: Text('确定'),
              onPressed: () {
                print('点击了确定按钮');
              },
            ),
            FlatButton(
              child: Text('取消'),
              onPressed: () {
                print('点击了取消按钮');
              },
            )
          ],
        )
      )
    );
  }
}