Android Internet connectivity check better method

user_5829531 0
Viewed 9240

According to the Android developer site, Determining and Monitoring the Connectivity Status, we can check there is an active Internet connection. But this is not working if even only Wi-Fi is connected and not Internet available (it notifies there is an Internet connection).

Now I ping a website and check whether Internet connections are available or not. And this method needs some more processing time. Is there a better method for checking Internet connectivity than this to avoid the time delay in ping the address?

android-7.0-nougat internet-connection android
10 Answers

I wanted to comment, but not enough reputation :/

Anyways, an issue with the accepted answer is it doesn't catch a SocketTimeoutException, which I've seen in the wild (Android) that causes crashes.

public boolean isInternetAvailable(String address, int port, int timeoutMs) {
    try {
        Socket sock = new Socket();
        SocketAddress sockaddr = new InetSocketAddress(address, port);

        sock.connect(sockaddr, timeoutMs); // This will block no more than timeoutMs
        sock.close();

        return true;

    } catch (IOException e) { 
        return false; 
    } catch (SocketTimeoutException e) {
        return false;
    }
}
user_101577940

//***To verify internet access

public static Boolean isOnline(){

    boolean isAvailable = false;
    try {

        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
        StrictMode.setThreadPolicy(policy);
        URL url = new URL("https://stackoverflow.com/");
        HttpURLConnection httpURLConnection = null;
        httpURLConnection = (HttpURLConnection) url.openConnection();

        // 2 second time out.
        httpURLConnection.setConnectTimeout(2000);
        httpURLConnection.connect();
        if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {
            isAvailable = true;
        } else {
            isAvailable = false;
        }
    } catch (IOException e) {
        e.printStackTrace();
        isAvailable = false;
    }

    if (isAvailable){
        return true;
    }else {
        return false;
    }
}
user_83676240
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