# Dio
TIP
dio是一个强大的Dart Http请求库，支持Restful API、FormData、拦截器、请求取消、Cookie管理、文件上传/下载、超时、自定义适配器等...
# 添加依赖
dependencies:
dio: ^2.1.x
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# 一个极简的示例
import 'package:flutter/material.dart';
import 'package:dio/dio.dart';
class HomePage extends StatefulWidget {
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
TextEditingController typeController=TextEditingController();
String showText="欢迎你来到这里!";
Widget build(BuildContext context) {
return Container(
child: Scaffold(
appBar: AppBar(
title: Text("美好人间"),
),
body:SingleChildScrollView(
child:Container(
child: Column(
children: <Widget>[
TextField(
controller: typeController,
decoration: InputDecoration(
contentPadding: EdgeInsets.all(10.0),
labelText: "美女类型",
helperText: '请输入你喜欢的类型'
),
autofocus: false,
),
RaisedButton(
onPressed: _choiceAction,
child: Text("选择完毕"),
),
Text(
showText,
overflow: TextOverflow.ellipsis,
maxLines: 1,
)
],
),
),
)
),
);
}
void _choiceAction(){
print("开始选择");
if(typeController.text.toString()==''){
showDialog(
context: context,
builder: (context)=>AlertDialog(title:Text("美女类型不能为空"))
);
}else{
getHttp(typeController.text.toString()).then((val){
setState(() {
showText=val['data']['name'].toString();
});
});
}
}
Future getHttp(String TypeText) async{
try {
Response response;
var data={"name":TypeText};
response = await Dio().get(
"https://www.easy-mock.com/mock/5c60131a4bed3a6342711498/baixing/dabaojian",
queryParameters: data
);
return response.data;
} catch (e) {
return print(e);
}
}
}
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WARNING
键盘弹出出现界面超出的问题SingleChildScrollView即可解决
效果如下
