【flutter】完美解决导入 dart.ui 中缺少 platformViewRegistry.registerViewFactory 方法

import 'package:flutter_web_ui/ui.dart' as ui;
// 或者 import 'dart:ui' as ui;

ui.platformViewRegistry.registerViewFactory(
        'maphtml',
            (int viewId) => IFrameElement()
          ..allowFullscreen=true
          ..height = '360'
          ..src = 'https://hornhuang.github.io'+_params
          ..style.border = 'none');

// ignore: camel_case_types
class platformViewRegistry {
  static registerViewFactory(String viewId, dynamic cb) {}
}

import 'dart:ui' as ui;

// ignore: camel_case_types
class platformViewRegistry {
  static registerViewFactory(String viewId, dynamic cb) {
    // ignore:undefined_prefixed_name
    ui.platformViewRegistry.registerViewFactory(viewId, cb);
  }
}

import 'FakeUi.dart' if (dart.library.html) 'RealUi.dart' as ui;