GetX GetUtils

GetUtils 是getx 为我们提供一些常用的工具类库，包括值是否为空、是否是数字、是否是视频、图片、音频、PPT、Word、APK、邮箱、手机号码、日期、MD5、SHA1等等。

import 'package:flutter/material.dart';
import 'package:get/get.dart';
void main() {
  runApp(const MyApp());
}
class MyApp extends StatelessWidget {
  const MyApp({super.key});
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return GetMaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const HomePage(),
    );
  }
}
class HomePage extends StatefulWidget {
  const HomePage({super.key});
  @override
  State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
  var textFieldController = TextEditingController();
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Title'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Padding(
              padding: const EdgeInsets.all(20),
              child: TextField(
                controller: textFieldController,
              ),
            ),
            const SizedBox(height: 10,),
            Padding(
              padding: const EdgeInsets.all(10),
              child: ElevatedButton(
                child: const Text("判断是否是邮箱"),
                onPressed: () async {
                  if (GetUtils.isEmail(textFieldController.text)) {
                    Get.snackbar("正确", "恭喜你, 完全正确", backgroundColor:
                                 Colors.greenAccent);
                  } else {
                    Get.snackbar(
                      "邮箱错误",
                      "请输入正确的邮箱",
                      backgroundColor: Colors.pink
                    );
                  }
                },
              ),
            ),
            Padding(
              padding: const EdgeInsets.all(10),
              child: ElevatedButton(
                child: const Text("判断是否是手机号"),
                onPressed: () async {
                  if (GetUtils.isPhoneNumber(textFieldController.text)) {
                    Get.snackbar("正确", "恭喜你, 完全正确", backgroundColor:
                                 Colors.greenAccent);
                  } else {
                    Get.snackbar(
                      "手机号错误",
                      "请输入正确的手机号",
                      backgroundColor: Colors.pink
                    );
                  }
                },
              ),
            ),
            Padding(
              padding: EdgeInsets.all(10),
              child: ElevatedButton(
                child: Text("判断是否是IPv4"),
                onPressed: () async {
                  if (GetUtils.isIPv4(textFieldController.text)) {
                    Get.snackbar("正确", "恭喜你, 完全正确", backgroundColor:
                                 Colors.greenAccent);
                  } else {
                    Get.snackbar(
                      "地址错误",
                      "请输入正确的IPv4地址",
                      backgroundColor: Colors.pink
                    );
                  }
                },
              ),
            ),
          ],
        ),
      ),
    );
  }
}