Android显示webview加载的网页源码

mWebView.addJavascriptInterface(new Handler(), "handler");

class Handler {
@JavascriptInterface
public void show(String data) {//获取网页源码
Logger.d(data);
}

mWebView.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {
view.loadUrl("javascript:window.handler.show(document.body.innerHTML);");
super.onPageFinished(view, url);
}
}