I have to make a webbrowser for android, so I want to try to block a site.
How can I do that?
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3 Answers
Lets say your WebView id is myWebView then what you will do is this :
WebView wb = (WebView) findViewById(R.id.myWebView); wb.setWebViewClient(new WebViewClient() { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { if (url.contains("http://yourBlockedUrl.com")){ //notify the user that this url is blocked return true; } return false; } }); by doing this you are overriding the url loading of your webview you can thus block a url from loading.
1 Comment
Amr El Aswar
please modify the if statement to your needs , this was a rough example of how to check a url, what url are you loading to the webview?
say you get the url sent as a string "www.google.com", from the edittext just do a check if this is a blocked url. for example
if( "www.google.com".equalsIgnoreCase(blocked_string)) { webview.setVisibility(View.GONE); warning_view.setVisibilty(View.VISIBLE); } or you could try overriding the shouldOverrideUrlLoading() in the WebViewClient class
@Override public boolean shouldOverrideUrlLoading(WebView view, String url) { if(my_url.equals("www.google.com")){ //do something. } return true; } Creating and setting a WebViewClient subclass. It will be called when things happen that impact the rendering of the content, eg, errors or form submissions. You can also intercept URL loading here (via shouldOverrideUrlLoading()).
6 Comments
Sarah Afrina Sari
I have problem on warning_view, what should I do?
filthy_wizard
add a webview to you xml layout. then use findviewbyid() to get it in the activity fragment. you need to add a webview first though. once you have the webview you can make it appear/disappear using webview.setVisibility(). "warning_view" is just an example name for your instance of WebView in my snippet of code .developer.android.com/reference/android/webkit/WebView.html
OneCricketeer
It's better to block the URL from loading in the Webview itself rather than catch an EditText
filthy_wizard
you should try debuging the code. put a break point in your shouldOverrideUrlLoading(WebView view, String url) method and see if it it executed
Sarah Afrina Sari
I am a newbie in android, I have debugging but I dont know how I can see it
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public void gotoUrl(View view) { EditText theEditText = (EditText)findViewById(R.id.urlTxt); theUrl = theEditText.getText().toString(); // // String blok= "http://www.teknojurnal.com"; webBrowserKu.loadUrl(theUrl); } my web browser when klik go, will process this, so what is the problem? why I cant do the steps from anything for blocking one site?