How to check internet connection before app starts and while it is running?

Question

I found a lot of answer about this but unable to implement those also. I want to implement this code here but not able to do so.

This code I found on google documentatio

Answer 1

UPDATE:

Update the solution for internet checking. What works for me now is this

fun isNetworkAvailable(context: Context?): Boolean {
    if (context == null) return false

    val connectivityManager =
        context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
        val capabilities =
            connectivityManager.getNetworkCapabilities(connectivityManager.activeNetwork)
        return capabilities != null &&
                (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) ||
                        capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) ||
                        capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET))
    } else {
        try {
            val activeNetworkInfo = connectivityManager.activeNetworkInfo
            return activeNetworkInfo != null && activeNetworkInfo.isConnected
        } catch (ignored: Exception) {
        }
    }

    return false
}

OLD:

Simple function to check the internet connection

protected boolean isOnline() {
    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnected()) {
        return true;
    } else {
        return false;
    }
}

and in your AndroidManifest.xml you should add the permission