import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';
import 'package:webview_flutter/webview_flutter.dart';

//公共的WebView页面，需要标题和URL参数
class CommonWebPage extends StatefulWidget {
  String? title;
  String? url;

  CommonWebPage({Key? key, this.title, this.url}) : super(key: key);

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

class CommonWebPageState extends State<CommonWebPage> {
  bool loading = true;

  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    WebViewController webViewController = WebViewController()
      ..setUserAgent("Android OSC")
      ..setJavaScriptMode(JavaScriptMode.unrestricted)
      ..setBackgroundColor(const Color(0x00000000))
      ..setNavigationDelegate(
        NavigationDelegate(
          onProgress: (int progress) {
            // Update loading bar.
          },
          onPageStarted: (String url) {},
          onPageFinished: (String url) {},
          onWebResourceError: (WebResourceError error) {},
        ),
      )
      ..loadRequest(Uri.parse(widget.url!));

    List<Widget> titleContent = [];
    titleContent.add(Text(
      widget.title!,
      style: TextStyle(color: Colors.white),
    ));
    if (loading) {
      titleContent.add(CupertinoActivityIndicator());
    }
    titleContent.add(Container(width: 50.0));
    return WebViewWidget(
      controller: webViewController,
    );
  }
}