trackoffical_app/lib/view/login/login_view.dart

import 'package:flutter/gestures.dart';
import 'package:common_pub/ui/web_view.dart';
import 'package:rive/rive.dart';
import 'package:application/widget.dart';
import '../../utils.dart';
import 'login_controller.dart';
import 'common.dart';
import 'package:common_pub/common_pub.dart';

final _duration = 2.seconds;

class AnimationPage extends StatefulWidget {
  const AnimationPage({super.key});

  @override
  State<StatefulWidget> createState() {
    return _AnimationPageState();
  }
}

class _AnimationPageState extends State<AnimationPage>
    with SingleTickerProviderStateMixin {
  late Animation<double> animation;
  late AnimationController animationController;

  @override
  void initState() {
    super.initState();
    animationController = AnimationController(duration: _duration, vsync: this);
    animation = Tween<double>(begin: 0, end: 1).animate(animationController);
    animationController.forward();
  }

  @override
  void dispose() {
    animationController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return wPageLeft(context);
  }

  Widget wPageLeft(BuildContext context) {
    return Container(
      padding: EdgeInsets.only(top: MediaQuery.of(context).padding.top),
      decoration: const BoxDecoration(
          image: DecorationImage(
              image: AssetImage(Assets.imagesBkCommonPage), fit: BoxFit.cover)),
      child: Column(
        children: [
          Expanded(
              flex: 1,
              child: Container(
                // color: const Color(0xffffcb00),
                padding: const EdgeInsets.only(bottom: 32),
                alignment: Alignment.bottomCenter,
                child: Stack(
                  alignment: Alignment.center,
                  children: [
                    Image.asset(
                      Assets.imagesImCompassNoMap,
                      height: context.wp(15.0),
                      fit: BoxFit.fitHeight,
                    ),
                    SizedBox(
                        height: context.wp(10.0),
                        child: const RiveAnimation.asset(
                          Assets.imagesAmAppStartArrow,
                          fit: BoxFit.fitHeight,
                        ))
                  ],
                ),
              )),
          Expanded(
              flex: 1,
              child: Column(
                // mainAxisAlignment: MainAxisAlignment.start,
                children: [
                  AnimatedText(animation: animation),
                  Expanded(
                      child: Stack(
                    alignment: Alignment.center,
                    children: [
                      Center(
                        child: AnimatedColors(
                          animation: animation,
                        ),
                      ),
                      // Positioned(
                      //     bottom: 2.6.wp,
                      //     child:
                      //     Image.asset(Assets.imagesIcLogo, height: 5.0.wp))
                    ],
                  ))
                ],
              )),
        ],
      ),
    );
  }
}

class AnimatedText extends AnimatedWidget {
  const AnimatedText({super.key, required Animation<double> animation})
      : super(listenable: animation);

  @override
  Widget build(BuildContext context) {
    final animation = listenable as Animation<double>;
    var style = (context.textTheme.titleLarge ?? const TextStyle())
        .copyWith(height: context.wp(0.14), color: Colors.white, fontSize: context.wp(2.2));

    return Opacity(
        opacity: animation.value,
        child: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            SizedBox(
              height: context.wp(0.9),
            ),
            Text('确定方向                ', style: style),
            Text('              发现你自己的路！', style: style),
            Text('Orienting, Discover Your Own Way!',
                style: style.copyWith(
                    color: const Color(0xffade0ff),
                    fontWeight: FontWeight.bold,
                    fontSize: context.wp(1.4))),
          ],
        ));
  }
}

class AnimatedColors extends AnimatedWidget {
  const AnimatedColors({super.key, required Animation<double> animation})
      : super(listenable: animation);

  @override
  Widget build(BuildContext context) {
    final animation = listenable as Animation<double>;
    var style = (context.textTheme.titleLarge ?? const TextStyle())
        .copyWith(color: Colors.white, fontSize: context.wp(8.33));

    var children = <Widget>[];

    for (var i = 0; i < hrPColors.length; i++) {
      final color = hrPColors[i];
      var opacity = 0.0;
      if (i < animation.value * hrPColors.length) {
        opacity = 1;
      }

      children.add(Opacity(
          opacity: opacity,
          child: Container(
            width: context.wp(1.02),
            decoration: BoxDecoration(
                color: color,
                borderRadius: BorderRadius.circular(context.wp(2.0)),
                border: Border.all(color: Colors.white.withAlpha(100))),
          )));
    }

    return Column(
      mainAxisSize: MainAxisSize.min,
      crossAxisAlignment: CrossAxisAlignment.center,
      children: [
        SizedBox(height: context.wp(5.36)),
        SizedBox(
            width: context.wp(7.6),
            height: context.wp(2.5),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: children,
            )),
        // Text('支持心率带检测身体数据',
        //     style: style.copyWith(
        //         color: const Color(0xffffcb00), fontSize: 3.3.wp)),
      ],
    );
  }
}

class LoginView extends GetView<LoginController> {
  const LoginView({super.key});

  static Bindings bindings() {
    return BindingsBuilder(() {
      Get.lazyPut<LoginController>(() => LoginController());
      // Get.put(LoginController());
    });
  }
  
  static Future<bool> to({
    bool canBack = true,
    VoidCallback? thenToPageCall,
  })async{
    
    Future<dynamic>? r;
    if (canBack) {
      r = Get.to(()=>const LoginView(), binding: LoginView.bindings(),arguments: thenToPageCall);
    } else {
      r = Get.offAll(()=>const LoginView(), binding: LoginView.bindings(), arguments: thenToPageCall);
    }
    
    if (r != null) {
      final r2 = await r;
      if (r2 is bool) {
        return r2;
      }
    }
    return false;
  }
  

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      // appBar: AppTopBar(title: '登录账号', hasBackText: true, height: context.height*0.3),
      backgroundColor: Colors.white,
      body: Container(
        height: double.infinity,
        decoration: const BoxDecoration(color: Colors.white),
        alignment: Alignment.center,
        clipBehavior: Clip.hardEdge,
        child: Row(
          children: [
            const Expanded(
              flex: 2,
              child: AnimationPage(),
            ),
            Expanded(
              flex: 3,
              child: wPageRight(context),
            )
          ],
        ),
      ),
    );
  }

  Widget wPageRight(BuildContext context) {
    var inputHeight = context.height * 0.45;
    const inputMinHeight = 260.0;
    if(inputHeight < inputMinHeight){
      inputHeight= inputMinHeight;
    }


    return Container(
        // margin: EdgeInsets.fromLTRB(context.wp(6), context.wp(5.6), context.wp(6), context.wp(2)),
        padding: EdgeInsets.only(top: MediaQuery.of(context).padding.top),
        decoration: const BoxDecoration(
          // color: Color(0xffffcb00),
          image: DecorationImage(
              image: AssetImage(Assets.imagesBkLoginRight),
              alignment: Alignment.topCenter,
              fit: BoxFit.fitWidth),
        ),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            const Expanded(child: Text(
              '定向运动活动现场监控系统',
              textAlign: TextAlign.center,
              style: TextStyle(fontSize: 22.0, fontWeight: FontWeight.bold),
            )),
            // SizedBox(height: inputHeight),
            // Expanded(child: wInput(context)),
            SizedBox(
                height: inputHeight,
                child: wInput(context)
            ),
            Expanded(
                child: Image.asset(Assets.imagesIcLoginLogo)
            ),
            // Expanded(flex: 10,child:  wExtra()),
          ],
        ));
  }

  InputDecoration wInputDecoration(hintText) {
    return InputDecoration(
      // isCollapsed: true,
      contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 10),
      hintText: hintText,
      // hintStyle: TextStyle(fontSize: 12.0.rpx),
      focusedBorder: OutlineInputBorder(
        borderRadius: BorderRadius.circular(4.0),
        borderSide: const BorderSide(
          color: Colors.blue,
          width: 1.0,
        ),
      ),
      enabledBorder: OutlineInputBorder(
        borderRadius: BorderRadius.circular(4.0),
        borderSide: const BorderSide(
          color: Color(0xffaaaaaa),
          width: 1.0,
        ),
      ),
    );
  }

  Widget wInput(BuildContext context) {
    return Container(
        margin: EdgeInsets.fromLTRB(context.wp(6), context.wp(3), context.wp(6), context.wp(2)),
        padding: EdgeInsets.fromLTRB(context.wp(6), context.wp(3.6), context.wp(6), context.wp(2)),
        decoration: BoxDecoration(
          color: const Color(0xffffffff),
          borderRadius: BorderRadius.circular(context.wp(1.0)),
          boxShadow: const [BoxShadow(color: Color(0x38000000), offset: Offset(0.0, 3.0), blurRadius: 6)],
        ),
        child: Column(
          children: [
            // const Spacer(flex: 20),
            TextFormField(
                decoration: wInputDecoration('请输入手机号'),
                validator: (String? value) {
                  if (value == null || !value.isPhoneNumber) {
                    return '请输入正确的手机号';
                  }
                  return null;
                },
                onChanged: (value) {
                  controller.phone.value = value;
                },
                keyboardType: TextInputType.phone),
            const Spacer(flex: 50),
            Stack(
              alignment: Alignment.centerRight,
              children: [
                TextFormField(
                  decoration: wInputDecoration('请输入验证码'),
                  onChanged: (value) {
                    controller.password.value = value;
                  },
                  keyboardType: TextInputType.number,
                ),
                Padding(
                  padding: const EdgeInsets.only(right: 4),
                  child: SizedBox(
                    width: 84,
                    height: 37,
                    child: Obx(() => GetCodeButton(
                          codeRetryLeft: controller.codeRetryLeft.value,
                          onPressed: () => controller.onGetCode(),
                        )),
                  ),
                ),
              ],
            ),
            // _TextContract(),
            const Spacer(flex: 80),
            button(context,
              '登    录',
              () => controller.onSignIn(),
            ),
            const Spacer(flex: 10),
          ],
        ));
  }

  Widget wExtra() {
    return Padding(
        padding: const EdgeInsets.only(left: 41.67, right: 41.67),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Row(
              crossAxisAlignment: CrossAxisAlignment.center,
              children: [
                divider(),
                const Padding(
                    padding: EdgeInsets.only(left: 22.9, right: 22.9),
                    child: Text(
                      '其他登录方式',
                      style: TextStyle(fontSize: 25.0),
                    )),
                divider(),
              ],
            ),
            const SizedBox(height: 76.5),
            const Row(),
            const Spacer(),
            Text.rich(TextSpan(
                text: '还不是我们的会员？',
                style: const TextStyle(fontSize: 33.33, color: Colors.black),
                children: [
                  TextSpan(
                    text: '点击注册',
                    style: const TextStyle(color: Color(0xffffb40b)),
                    recognizer: TapGestureRecognizer()
                      ..onTap = () {
                        // SignUpView.show();
                      },
                  ),
                ])),
            const SizedBox(height: 76.5),
          ],
        ));
  }

  Widget divider() {
    return Expanded(
        child: Container(
      height: 2.0,
      color: Colors.black,
    ));
  }
}

class _TextContract extends GetView<LoginController> {
  @override
  Widget build(BuildContext context) {
    const color = Color(0xffffb40b);

    return Row(
      children: [
        Obx(() => Checkbox(
              value: controller.isAgreeContract.value,
              onChanged: (v) => controller.isAgreeContract.value = (v ?? false),
            )),
        Expanded(
            child: Text.rich(TextSpan(
                text: '我已阅读并同意',
                style: const TextStyle(fontSize: 11, color: Color(0xFF999999)),
                children: [
              TextSpan(
                text: '《用户协议》',
                style: const TextStyle(color: color),
                recognizer: TapGestureRecognizer()
                  ..onTap = () {
                    Get.to(() => WebView(
                        url: 'https://www.beswell.com/ot_agreement.html'));
                  },
              ),
              const TextSpan(text: '和'),
              TextSpan(
                text: '《隐私政策》',
                style: const TextStyle(color: color),
                recognizer: TapGestureRecognizer()
                  ..onTap = () {
                    Get.to(() =>
                        WebView(url: 'https://beswell.com/privacy-ot.html'));
                  },
              ),
            ])))
      ],
    );
  }
}

void main() {
  Get.put(LoginController());
  runPreview(const LoginView());
}