NetworkUtil.java

package suda.sudamodweather.util;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

public class NetworkUtil {

    @SuppressWarnings("static-access")
    public static boolean checkWifi(Context ctx) {
        boolean isWifiConnect = true;
        ConnectivityManager cm = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);

        //check the networkInfos numbers
        NetworkInfo[] networkInfos = cm.getAllNetworkInfo();
        for (int i = 0; i < networkInfos.length; i++) {
            if (networkInfos[i].getState() == NetworkInfo.State.CONNECTED) {
                if (networkInfos[i].getType() == cm.TYPE_MOBILE) {
                    isWifiConnect = false;
                }
                if (networkInfos[i].getType() == cm.TYPE_WIFI) {
                    isWifiConnect = true;
                }
            }
        }
        return isWifiConnect;
    }

    public static boolean checkNetwork(Context ctx) {
        ConnectivityManager cm = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo[] networkInfos = cm.getAllNetworkInfo();
        for (int i = 0; i < networkInfos.length; i++) {
            if (networkInfos[i].getState() == NetworkInfo.State.CONNECTED) {
                return true;
            }
        }

        return false;
    }
}