腾讯x5的webview flutter

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功能说明

• Android 已实现桥接 视频播放 相册打开

• Ios只支持普通的页面显示

1. webview初始化

///注意: 需要首先授权存储权限 否则 X5内核加载失败

      X5Plugin.init().then((isOk) {
        x5Init = isOk;
        print(isOk ? "X5内核成功加载" : "X5内核加载失败");
      });

2.提供了三种方式 一般建议第三种

class _HomePageState extends State<HomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Plugin example app'),
      ),
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: <Widget>[
          GestureDetector(
            onTap: () {
              X5Plugin.openFilechooserActivity("file:///android_asset/webpage/fileChooser.html",
                  title: "xx");
            },
            child: Container(
              child: Text("支持打开相册页面 支持视频 不支持桥接"),
              width: 150,
              height: 150,
              color: Colors.red,
            ),
          ),
          SizedBox(height: 30,),
          GestureDetector(
            onTap: () {
              X5Plugin.openWebActivity("https://www.youku.com/", title: "xx");
            },
            child: Container(
              child: Text("支持视频 不支持桥接和相册"),
              width: 150,
              height: 150,
              color: Colors.red,
            ),
          ),
          SizedBox(height: 30,),
          GestureDetector(
            onTap: () {
              Navigator.push(
                context,
                new MaterialPageRoute(
                    builder: (context) => new Demo("file:///android_asset/webpage/demo.html")),
              );
            },
            child: Container(
              child: Text("支持 桥接 视频  不支持相册(一般建议用这个 这个实用)"),
              width: 150,
              height: 150,
              color: Colors.red,
            ),
          ),
        ],
      ),
    );
  }
}

3.一般建议这种方式

class Demo extends StatefulWidget {
  String url;
  Demo(this.url);
  @override
  _DemoState createState() => _DemoState();
}

class _DemoState extends State<Demo> {
  X5WebViewController _controller;
  @override
  Widget build(BuildContext context) {
    return Scaffold (
      appBar: AppBar(
          title: Text("webview实例")),
      body:  X5Webview(url: widget.url,
      onPageFinished: (String url) async{
      ///桥接名字
        var listName = ["X5Web"];
        _controller.addJavascriptChannels(listName,
                (name, data) {
              switch (name) {
                case "X5Web":
                  showDialog(
                      context: context,
                      builder: (context) {
                        return AlertDialog(
                          title: Text("获取到的字符串为："),
                          content: Text(data),
                        );
                      });

                  break;

                case "Toast":

                  print(data);

                  break;

              }

            });

      },

      onWebViewCreated:(X5WebViewController controller) {

        _controller = controller;

      } ,)

    );

  }

}