Joh*_*hnK 36 android webview android-webview
如何检索当前在WebView中显示的所有HTML内容？
我发现WebView.loadData()但我找不到相反的等价物(例如WebView.getData())
请注意,我感兴趣的检索的网页,我无法控制的数据(即我不能注入Javascript函数到这些网页,这样它会调用JavaScript接口的WebView).
shr*_*ari 33
您可以通过以下方式实现:
final Context myApp = this;
/* An instance of this class will be registered as a JavaScript interface */
class MyJavaScriptInterface
{
@SuppressWarnings("unused")
public void processHTML(String html)
{
// process the html as needed by the app
}
}
final WebView browser = (WebView)findViewById(R.id.browser);
/* JavaScript must be enabled if you want it to work, obviously */
browser.getSettings().setJavaScriptEnabled(true);
/* Register a new JavaScript interface called HTMLOUT */
browser.addJavascriptInterface(new MyJavaScriptInterface(), "HTMLOUT");
/* WebViewClient must be set BEFORE calling loadUrl! */
browser.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url)
{
/* This call inject JavaScript into the page which just finished loading. */
browser.loadUrl("javascript:window.HTMLOUT.processHTML('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');");
}
});
/* load a web page */
browser.loadUrl("http://lexandera.com/files/jsexamples/gethtml.html");
您将在processHTML方法中获得整个Html contnet.它不会再提出网页请求.所以这也是更有效的方式.
谢谢.
bre*_*dan 17
不幸的是,这并不容易.
您可以将HttpRequest设置为与WebView相同的页面并获取响应.
noa*_*hen 12
webView.evaluateJavascript("(function(){return window.document.body.outerHTML})();",
new ValueCallback<String>() {
@Override
public void onReceiveValue(String html) {
}
});
| 归档时间： |
|
| 查看次数： |
90476 次 |
| 最近记录： |