我希望在Android的WebView上部分显示网页,并从网页中删除某些div元素。我有一个像下面这样的网页:
<!DOCTYPE html>
<head></head>
<body>
<div id="container">
<div id="header"></div>
<div id="main"></div>
</div>
</body></html>
我尝试了像这样的方法,但页面上只显示"none"这个标题或者页面加载后只显示白色背景。请问有人有什么想法吗?
view.loadUrl("javascript:document.getElementById('header').style.display = 'none';")
这是我的Java代码。
package com.example.client6.tetrapolis;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import org.htmlcleaner.HtmlCleaner;
import org.htmlcleaner.TagNode;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
public class lichkab extends Activity {
public class HelloWebViewClient extends WebViewClient
{
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
view.loadUrl("javascript:var con = document.getElementById('header');" +"con.style.display = 'none'; ");
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_lichkab);
//
mWebView = (WebView) findViewById(R.id.webview);
//
mWebView.getSettings().setJavaScriptEnabled(true);
//
mWebView.loadUrl("#");
mWebView.getSettings().setLoadsImagesAutomatically(false);
mWebView.getSettings().setLoadWithOverviewMode(true);
mWebView.getSettings().setUseWideViewPort(true);
mWebView.setWebViewClient(new HelloWebViewClient());
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.lichkab, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
WebView mWebView;
}
I/chromium: [INFO:CONSOLE(1)] "Uncaught TypeError: Cannot read property 'setAttribute' of null", source: my_long_url_is_here (1)
的信息。 - Someone SomewhereonPageFinished()
方法中,HTML 是加密的。通过使用webView.postDelayed(new Runnable(javascript))
延迟 1 秒钟,然后 HTML 就可以使用了。 - Someone Somewhere