I've searched a lot for this but did not find any answers. I am developing an android app in which at some point, a webview is displayed which shows you a webpage. But I am really worried about a small advertisement on the web view which shows porn content. Is there any way I can block that from loading on the webpage? Every resource passes the onLoadingRecource()
method...Is this the place where i can find a solution? I really need help. Thank you.
Since API 11, there's WebViewClient.shouldInterceptRequest , here you can catch loading of embedded objects (images, etc) and replace it with your own image. For example:
WebResourceResponse wr = new WebResourceResponse("", "", new FileInputStream("/sdcard/aaa.jpg"));
return wr;
You must detect yourself what you want replace by what.
On API<11 it may be more complicated to achieve this (I don't know yet how).
You can remove any Element from the page by injecting JavaScript into a WebView. Below is an example of how to inject JavaScrpt into a WebView to remove an element having its id:
public void onLoadResource(WebView view, String url) {
super.onLoadResource(view, url);
// Removes element which id = 'mastHead'
view.loadUrl("javascript:(function() { " +
"(elem = document.getElementById('mastHead')).parentNode.removeChild(elem); " +
"})()");
}
You can use the below code to check whether to load it on not. Where webview is the object for WebView.
webview.setWebViewClient(new WebViewClient() {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
Toast.makeText(activity,"onPageStarted url :"+url, Toast.LENGTH_LONG).show();
}
@Override
public void onLoadResource(WebView view, String url) {
// TODO Auto-generated method stub
super.onLoadResource(view, url);
Toast.makeText(activity,"Connecting url :"+url, Toast.LENGTH_LONG).show();
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show();
}
});
I think this will help you.
该方法有2个参数,请在您的Web视图中将其覆盖,并舍弃以您要避免的域开头的网址。
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