Check network connection android

It's better to (1) pass in the context so that the every activity can invoke this functions, and (2) Make this function static:

 public boolean isNetworkOnline() {
    boolean status=false;
    try{
        ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo netInfo = cm.getNetworkInfo(0);
        if (netInfo != null && netInfo.getState()==NetworkInfo.State.CONNECTED) {
            status= true;
        }else {
            netInfo = cm.getNetworkInfo(1);
            if(netInfo!=null && netInfo.getState()==NetworkInfo.State.CONNECTED)
                status= true;
        }
    }catch(Exception e){
        e.printStackTrace();  
        return false;
    }
    return status;

    }  

To get getActiveNetworkInfo() to work you need to add the following to the manifest.

1. uses-permission android:name="android.permission.INTERNET"
 2. uses-permission
    android:name="android.permission.ACCESS_NETWORK_STATE"

better to use netInfo.isConnected() rather than netInfo.isConnectedOrConnecting

and also try this

Context.getSystemService(Context.CONNECTIVITY_SERVICE).getNetworkInfo(ConnectivityManager.TYPE_MOBILE)

or

Context.getSystemService(Context.CONNECTIVITY_SERVICE).requestRouteToHost(TYPE_WIFI, int hostAddress)

We can check internet connection connected state using below function. Google Android has updated the Android API's function to check the network state. Now in Android latest API's, getAllNetworkInfo() is deprecated. but getAllNetworks() function is only allowed for Build.VERSION.SDK_INT >= 21.I have written code for all cases.

To check the internet connection, you may call this function.

public static boolean checkInternetConnection(Context context) {
        ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        if (connectivity == null) {
        return false;
    } else if(Build.VERSION.SDK_INT >= 21){
        Network[] info = connectivity.getAllNetworks();
        if (info != null) {
            for (int i = 0; i < info.length; i++) {
                if (info[i] != null && connectivity.getNetworkInfo(info[i]).isConnected()) {
                    return true;
                }
            }
        }
    } else {
        NetworkInfo[] info = connectivity.getAllNetworkInfo();
        if (info != null) {
            for (int i = 0; i < info.length; i++) {
                if (info[i].getState() == NetworkInfo.State.CONNECTED) {
                    return true;
                }
            }
        }
        final NetworkInfo activeNetwork = connectivity.getActiveNetworkInfo();
        if (activeNetwork != null && activeNetwork.isConnected()) {
            return true;
        }
    }

    return false;
}