The codes that i am having issue with is below
public class FaviconFetcher {
private static FaviconFetcher INSTANCE = new FaviconFetcher();
private OkHttpClient client = new OkHttpClient();
private final String[] htmlIconCssQueries = {
"meta[property=\"og:image\"]",
"meta[name=\"msapplication-TileImage\"]",
"link[rel=\"icon\"]",
"link[rel=\"shortcut icon\"]",
"link[rel=\"apple-touch-icon\"]",
"link[rel=\"apple-touch-icon-precomposed\"]",
"img[alt=\"Logo\"]",
"img[alt=\"logo\"]"
};
private final String[] hardcodedIconPaths = {
"/favicon.ico",
"/apple-touch-icon.png",
"/apple-touch-icon-precomposed.png",
};
private FaviconFetcher() {}
public static FaviconFetcher getInstance () {
return INSTANCE;
}
public String getFaviconUrl (Document document) {
List <String> potentialIcons = getPotentialFaviconUrls(document);
return pickBestIconUrl(potentialIcons);
}
public List<String> getPotentialFaviconUrls (Document document) {
List<String> iconUrls = new ArrayList<String>();
HttpUrl base = HttpUrl.parse(document.baseUri());
for (String cssQuery : htmlIconCssQueries) {
for (Element e : document.select(cssQuery)) {
if (e.hasAttr("href")) {
iconUrls.add(e.attr("href"));
}
if (e.hasAttr("content")) {
iconUrls.add(e.attr("content"));
}
if (e.hasAttr("src")) {
iconUrls.add(e.attr("src"));
}
}
}
for (String path : hardcodedIconPaths) {
HttpUrl url = HttpUrl.parse("http://" + HttpUrl.parse(document.baseUri()).host() + path);
iconUrls.add(url.toString());
}
for (ListIterator<String> i = iconUrls.listIterator(); i.hasNext(); ) {
HttpUrl httpUrl = base.resolve(i.next());
if (httpUrl != null) {
i.set(httpUrl.toString());
} else {
i.remove();
}
}
return iconUrls;
}
public String pickBestIconUrl (List<String> urls) {
String bestIconUrl = null;
int currentBestWidth = 0;
for (String url : urls) {
BitmapFactory.Options options = getBitmapDimensFromUrl(url);
if (options != null && options.outHeight == options.outHeight) {
if ((bestIconUrl != null) && (currentBestWidth <= options.outWidth)) {
bestIconUrl = url;
currentBestWidth = options.outWidth;
} else if (bestIconUrl == null) {
bestIconUrl = url;
currentBestWidth = options.outWidth;
}
}
}
return bestIconUrl;
}
private BitmapFactory.Options getBitmapDimensFromUrl (String url) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
Request request = new Request.Builder()
.url(url)
.build();
try {
Response response = client.newCall(request).execute();
InputStream is = response.body().byteStream();
BitmapFactory.decodeStream(is, null, options);
response.body().close();
is.close();
return options;
} catch (IllegalArgumentException | IOException e) {
e.printStackTrace();
return null;
}
}
}
I have done some research about this but I have not get a defined solution to this issue. I do not want to change the android-sdk. Any help will be appreciated. Thanks.
