flutter_integrated_whb/lib/pages/mine/mine_first_sign_page.dart

import 'package:flutter/material.dart';
import 'dart:io';
import 'package:flutter/services.dart';
import 'package:qhd_prevention/pages/my_appbar.dart';

import '../../tools/tools.dart';
import 'mine_sign_page.dart';




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


  @override
  State<FirstSignPage> createState() => _SignatureUpdatePageState();
}

class _SignatureUpdatePageState extends State<FirstSignPage> {
  String imagePath="";




  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: MyAppbar(title: "更新签字信息"),
      body:
      Container(
        margin: EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                GestureDetector(
                  onTap: () {
                    pushPage(MineSignPage(), context);
                  },
                  child:  Text("用户",style: TextStyle(color: Colors.black,fontSize: 16)),
                ),

                _buildConfirmButton(),
              ],
            ),
            const SizedBox(height: 8),

            Row(
              children: [
                if (imagePath.isNotEmpty)
                  Text('签字照片：',
                    style: TextStyle(
                      fontSize: 14,
                      fontWeight: FontWeight.bold,
                      color: Colors.grey,
                    ),
                  ),
                const SizedBox(width: 15),
                if (imagePath.isNotEmpty)
                  Image.file(File(imagePath),width: 230,height: 150,fit: BoxFit.cover,),

              ],
            ),

            const SizedBox(height: 8),
            // 确认按钮
            // const Spacer(),
            _buildTrueButton(),
          ],
        ),
      ),


    );
  }









  Widget _buildConfirmButton() {
    return SizedBox(
      width: 80,
      height: 30,
      child: ElevatedButton(
        onPressed: () async {
          final path = await Navigator.push(
            context,
            MaterialPageRoute(builder: (context) => MineSignPage()),
          );
          // 更新状态（当子页面关闭时）
          setState(() {
            imagePath = path ?? '';
          });

        },
        style: ElevatedButton.styleFrom(
          backgroundColor: const Color(0xFF4285F4),
          padding: const EdgeInsets.symmetric(vertical: 5),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(8),
          ),
        ),
        child: Text(
          '手写签字',
          style: TextStyle(fontSize: 12, color: Colors.white),
        ),
      ),
    );
  }
}


Widget _buildTrueButton() {
  return Center(

    child: ElevatedButton(
            onPressed: () {

            },
            style: ElevatedButton.styleFrom(
              backgroundColor: const Color(0xFF4285F4),
              padding: const EdgeInsets.symmetric(vertical:5,horizontal: 80),
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(8),
              ),
            ),
            child: Text(
              '确认',
              style: TextStyle(fontSize: 14, color: Colors.white),
            ),
          ),


  );

}