بررسی اتصال اینترنت در برنامه نویسی اندروید

public static boolean hasInternetConnection()
{
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo wifiNetwork = cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
    if (wifiNetwork != null && wifiNetwork.isConnected())
    {
        return true;
    }
    NetworkInfo mobileNetwork = cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
    if (mobileNetwork != null && mobileNetwork.isConnected())
    {
        return true;
    }
    NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
    if (activeNetwork != null && activeNetwork.isConnected())
    {
        return true;
    }
    return false;
}

package com.tik4;

/**
* Author Jefferson
*/
public class MainActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        if(hasInternetConnection){
         Toast.makeText(getApplicationContext(), "Have Connection !", Toast.LENGTH_LONG).show();
        }  
        else{
             Toast.makeText(getApplicationContext(), "No Connection", Toast.LENGTH_LONG).show();
            }
    }

public static boolean hasInternetConnection()
{
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo wifiNetwork = cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
    if (wifiNetwork != null && wifiNetwork.isConnected())
    {
        return true;
    }
    NetworkInfo mobileNetwork = cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
    if (mobileNetwork != null && mobileNetwork.isConnected())
    {
        return true;
    }
    NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
    if (activeNetwork != null && activeNetwork.isConnected())
    {
        return true;
    }
    return false;
}

}