How does flutter WebView interact with H5 page methods?

[wangyongpenga]

[Yaxian]

@wangyongpenga

I created a branch to make it. Please try it if you don't mind.

[bagintz]

@Yaxian I tried your branch and it still did not seem to work for me. The only difference I could see in your example and mine is that you were using the webviewscaffold and I am using the FlutterWebviewPlugin.launch(....) method ??

[bagintz]

@Yaxian the problem I was having was in base.dart, line 67

case 'onWebviewMessage':
        _onWebviewMessage.add(call.arguments['data']);
        break;

would not work, not fire off a new event for the StreamController, but when changed to the following it does:

case 'onWebviewMessage':
        _onWebviewMessage.add(call.arguments);
        break;

[Yaxian]

@bagintz I updated the example, and added a index.html which contains window.postMessage and document.addEventListener('message', callback) methods

[bagintz]

@Yaxian it still doesn't work for me. Is there a reason that you are forcing the data coming in from the PostMessage to follow a particular pattern
{data: ....}
instead of just allowing any json object to be passed back and forth?

[Yaxian]

@bagintz I have fix the incorrect arguments for android and test it. It should work well both ios and android. Thank you very much, again.

[slightfoot]

Fix requires review on PR #194