App_Flutter/lib/view/nickname.dart

import 'dart:async';

import 'package:fast/constants.dart';
import 'package:fast/model/model.dart';
import 'package:fast/utils/api.dart';
import 'package:fast/utils/global.dart';
import 'package:fast/utils/http_utils.dart';
import 'package:fast/utils/size_fit.dart';
import 'package:fast/view/component/navi_bar.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';

import 'component/fast_btn.dart';
import 'component/toast.dart';

class Nickname extends StatefulWidget {
  const Nickname({Key? key}) : super(key: key);

  @override
  State<Nickname> createState() => _NicknameState();
}

class _NicknameState extends State<Nickname> {
  late UserBean userBean;
  String name = '';

  @override
  void initState() {
    userBean = Global().userBean!;
    name = userBean.nickname!;
    super.initState();
  }

  Future update() async{
    if (name.trim().isEmpty){
      return;
    }
    var data =
        await HttpUtils.post(Api.userInfo, data: {'nickname': name});
    if (data!=null){
      showDialog(
          context: context,
          barrierDismissible: false,
          barrierColor: Colors.transparent,
          builder: (BuildContext context) {
            return Toast(
              title: '更新成功',
              content: const SizedBox(width: 0,),
            );
          });
      Timer(const Duration(seconds: 3), (){
        Get.back();
      });
    }
  }
  @override
  Widget build(BuildContext context) {
    SizeFit.initialize(context);
    EdgeInsets safePadding = MediaQuery.of(context).padding;
    return Material(
        child: Container(
            padding: EdgeInsets.only(
                top: 0, bottom: safePadding.bottom),
            color: kBgColor,
            alignment: Alignment.centerLeft,
            child:
                Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
              NaviBar(
                  title: '昵称',
                  closeCallback: () {
                    Get.back();
                  }),
              Container(
                margin: EdgeInsets.fromLTRB(14.px, 30.px, 14.px, 20.px),
                padding: EdgeInsets.only(left: 18.px, right: 18.px, top: 5.px),
                height: 54.px,
                decoration: BoxDecoration(
                    color: const Color(0x26C4CCDA),
                    borderRadius: BorderRadius.all(Radius.circular(16.px))),
                child: TextFormField(
                  initialValue: userBean.nickname,
                  onChanged: (value) => {
                    setState(() {
                      name = value;
                    })
                  },
                  style: TextStyle(color: Colors.white, fontSize: 16.px),
                  cursorColor: Colors.white,
                  autofocus: true,
                  decoration: const InputDecoration(
                    counterText: "",
                      hintText: '请填写您的昵称，2～10个汉字',
                      border: InputBorder.none,
                      contentPadding: EdgeInsets.zero,
                      hintStyle: TextStyle(color: Color(0x66FFFFFF))),
                ),
              ),
              Container(
                margin: EdgeInsets.only(left: 14.px),
                child: FastBtn(
                    title: "确定",
                    disable: name.isEmpty,
                    width: 347.px,
                    height: 50.px,
                    callback: () {
                      update();
                    }),
              )
            ])));
  }
}