H5_Flutter/lib/view/invit_code.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:link/constants.dart';
import 'package:link/utils/global.dart';
import 'package:link/utils/util.dart';
import 'package:link/view/component/code.dart';
import 'package:link/view/component/link_btn.dart';
import 'package:link/view/component/toast.dart';

import '../utils/api.dart';
import '../utils/http_utils.dart';
import '../utils/size_fit.dart';
import 'component/top_container.dart';

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

  @override
  State<InviteCode> createState() => _InviteCodeState();
}

class _InviteCodeState extends State<InviteCode> {
  String code = '';
  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    code = Global().code;
    Util().setPageTitle('invite');
  }

  tapBegin() {
    if (code.length != 4) {
      Toast().showInfoText('邀请码错误，请重新输入', context: context);
      setState(() {
        code = '';
      });
      return;
    }

    checkCode();
    // 
  }

  Future checkCode() async {
    Map<String, dynamic> data = await HttpUtils.get(Api.inviteCodeExist,params: {
      'invite_code':code
    });
    if (data['success']==false){
      Toast().showInfoText(data['message'], context: context);
      return;
    }
    Get.toNamed('/signup',parameters: {'code':code});
  }

  updateCode(strCode) {
    setState(() {
      code = strCode;
    });
  }

  @override
  Widget build(BuildContext context) {
    SizeFit.initialize(context);
    return Material(
        color: kBgColor,
        child: TopContainer(
            child: Stack(children: [
          // Positioned(
          //     left: 0,
          //     top: 0,
          //     right: 0,
          //     child: Container(
          //       padding: EdgeInsets.only(
          //           left: 12.px, right: 12.px, top: 14.px, bottom: 14.px),
          //       alignment: Alignment.topLeft,
          //       child: Image.asset(
          //         'assets/images/navi_back.png',
          //         width: 20.px,
          //         height: 20.px,
          //       ),
          //     )),
          Container(
              padding: EdgeInsets.only(top: 47.px),
              child: Column(
                  crossAxisAlignment: CrossAxisAlignment.center,
                  children: [
                    Image.asset(
                      'assets/images/logo.png',
                      width: 167.px,
                      height: 64.px,
                    ),
                    SizedBox(
                      height: 20.px,
                    ),
                    Text(
                      '如果你已获得邀请码且尚未注册，请输入邀请码\n如果你尚未获得邀请码，请耐心等待',
                      textAlign: TextAlign.center,
                      style: TextStyle(
                          color: const Color(0xFF74747A),
                          fontSize: 14.px,
                          height: 1.71),
                    ),
                    SizedBox(
                      height: 12.px,
                    ),
                    Code(
                        type: 1,
                        code: code,
                        changed: (e) {
                          updateCode(e);
                        }),
                    SizedBox(
                      height: 24.px,
                    ),
                    LinkButton(
                        title: '使用邀请码·开始注册',
                        disable: false,
                        isBlack: false,
                        callback: () {
                          tapBegin();
                        }),
                    SizedBox(
                      height: 52.px,
                    ),
                    Row(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        Text('如果你已完成注册，请点击',
                            style: TextStyle(
                                color: const Color(0xFF444447),
                                fontSize: 14.px)),
                        GestureDetector(
                          onTap: (){Get.toNamed('/login');},
                          child: Text(
                            '前往登录',
                            style: TextStyle(color: kBtnColor, fontSize: 14.px),
                          ),
                        )
                      ],
                    )
                  ]))
        ])));
  }
}