java.net.UnknownHostException: Unable to resolve host “s3-ap-northeast-1.amazonaws.com”: No address associated with hostname

Question

I use the code below to get image:

public Bitmap loadImageFromUrl(String urlStr) {
    try {
        BufferedInputStream bis = new BufferedInputStream(new URL(urlStr).openStream());
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        BufferedOutputStream bos = new BufferedOutputStream(baos);
        copy(bis, bos);
        bos.flush();
        bos.close();
        bis.close();
        return BitmapFactory.decodeByteArray(baos.toByteArray(), 0, baos.size());

    } catch (Exception e) {
        e.printStackTrace();
    }

I'm sure of the permisson and wifi connection. such as:

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Answer 1

If you are getting this error then might be there is 2 issue.

1) Either you forget to add permission of internet in android manifest.

 <uses-permission android:name="android.permission.INTERNET" />

2) If you are running in real device then your device is not connected with internet. Check whether your device is connected with internet or not.