app-zj/lib/page/signature/signature_page.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:lszlgl/base/base_lifecycle_state.dart';

class SignaturePageArgs {
  /// 签名数量
  int count;

  SignaturePageArgs({this.count = 1});

  @override
  String toString() {
    return {'count': count}.toString();
  }
}

/// 电子签名
class SignaturePage extends StatefulWidget {
  final SignaturePageArgs args;

  const SignaturePage({
    super.key,
    required this.args,
  });

  @override
  State<SignaturePage> createState() => _SignaturePageState();
}

class _SignaturePageState extends BaseLifecycleState<SignaturePage> {
  @override
  void onInit() {
    SystemChrome.setPreferredOrientations([
      DeviceOrientation.landscapeLeft,
      DeviceOrientation.landscapeRight,
    ]);
  }

  @override
  void onDestroy() {
    SystemChrome.setPreferredOrientations([
      DeviceOrientation.portraitUp,
      DeviceOrientation.portraitDown,
    ]);
  }

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