App_Flutter/lib/view/invite_code.dart

import 'package:dio/dio.dart';
import 'package:fast/constants.dart';
import 'package:fast/utils/api.dart';
import 'package:fast/utils/http_utils.dart';
import 'package:fast/utils/size_fit.dart';
import 'package:fast/view/index.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';

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

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

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

class _InviteCodeState extends State<InviteCode> {
  String code = '';
  bool showError = false;
  @override
  Widget build(BuildContext context) {
    SizeFit.initialize(context);
    return Material(
        child: Container(
            color: kBgColor,
            child: Column(children: [
              Header(
                isIndexPage: false,
              ),
              SizedBox(
                height: 50.px,
              ),
              Opacity(
                opacity: showError ? 1 : 0,
                child: Text(
                  '输入的邀请码错误，请重新输入',
                  style: TextStyle(color: kThemeColor, fontSize: 12.px),
                ),
              ),
              SizedBox(
                height: 10.px,
              ),
              Stack(
                children: [
                  Container(
                      width: 311.px,
                      height: 48.px,
                      alignment: Alignment.center,
                      decoration: BoxDecoration(
                          color: const Color(0x26C4CCDA),
                          borderRadius:
                              BorderRadius.all(Radius.circular(16.px))),
                      child: Opacity(
                        opacity: code.isEmpty ? 1 : 0,
                        child: Row(
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                            Text(
                              '请输入邀请码，你和朋友各得',
                              style: TextStyle(
                                  color: const Color(0x66FFFFFF),
                                  fontSize: 16.px),
                            ),
                            SizedBox(
                              width: 3.px,
                            ),
                            Text(
                              '5',
                              style: TextStyle(
                                  color: const Color(0x99FFFFFF),
                                  fontSize: 24.px,
                                  fontFamily: 'Exo2',
                                  fontWeight: FontWeight.w600),
                            ),
                            SizedBox(
                              width: 3.px,
                            ),
                            Image.asset(
                              'assets/images/stone.png',
                              width: 24.px,
                              height: 24.px,
                            )
                          ],
                        ),
                      )),
                  SizedBox(
                      width: 311.px,
                      height: 48.px,
                      child: TextField(
                        onChanged: (value) {
                          setState(() {
                            code = value;
                          });
                        },
                        style: TextStyle(
                            color: Colors.white,
                            fontSize: 24.px,
                            fontFamily: 'Exo2',
                            fontWeight: FontWeight.w600),
                        cursorColor: Colors.white,
                        maxLength: 4,
                        autofocus: true,
                        textAlign: TextAlign.center,
                        decoration: const InputDecoration(
                          counterText: "",
                            border: InputBorder.none,
                            contentPadding: EdgeInsets.zero,
                            hintStyle: TextStyle(color: Color(0x66FFFFFF))),
                      ))
                ],
              ),
              SizedBox(
                height: 28.px,
              ),
              FastBtn(
                  title: '提交',
                  disable: false,
                  // color: const Color(0x80AAFF00),
                  width: 311.px,
                  height: 48.px,
                  callback: () {
                    invite();
                  }),
              SizedBox(
                height: 30.px,
              ),
              GestureDetector(
                  onTap: () {
                    jump();
                  },
                  child: Text(
                    '无邀请码，跳过',
                    style: TextStyle(
                        color: const Color(0x99C4CCDA), fontSize: 14.px),
                  ))
            ])));
  }

  Future invite() async {
    try {
      Map<String, dynamic> data = await HttpUtils.post(Api.inviteCode,
          data: {'skip': false, 'invite_code': code});
      showToast();
      Get.offAll(const IndexScreen());
      // Navigator.of(context).pop();
    } on DioError catch (e) {
      if (e.response?.data['error_code'] == 'INVITE_CODE_NOT_EXIST') {
        setState(() {
          showError = true;
        });
      }
    }
  }

  showToast() {
    showDialog(
        context: context,
        barrierDismissible: false,
        barrierColor: Colors.transparent,
        builder: (BuildContext context) {
          return Toast(
            title: '成功受邀',
            content: Row(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Text(
                  '+3',
                  style: TextStyle(
                      color: Colors.white,
                      fontSize: 16.px,
                      fontWeight: FontWeight.w800,
                      fontFamily: 'Exo2',
                      decoration: TextDecoration.none),
                ),
                SizedBox(
                  width: 3.px,
                ),
                Image.asset(
                  'assets/images/stone.png',
                  width: 24.px,
                  height: 24.px,
                )
              ],
            ),
          );
        });
  }

  Future jump() async {
    var data = await HttpUtils.post(Api.inviteCode, data: {'skip': true});
    Get.offAll(const IndexScreen());
  }
}