获取WebView里的网页文本内容[通俗易懂]

public class ComJSInterface {
         public void loadHtmlContent(String content) {
		Log.d("comJs", "html:" + content);
	}
}

	mWebView.addJavascriptInterface(new ComJSInterface(), "comjs");
	mWebView.loadUrl("javascript:comjs.loadHtmlContent(document.documentElement.outerHTML);void(0);");