Internet Connection Check in Android Devices

Here is how you can check the internet connection in your Android testing device. This works for G1, Hero, Droid etc.

ConnectivityManager mgr = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo netInfo = mgr.getActiveNetworkInfo();

if (netInfo != null) {
if (netInfo.isConnected()) {

// do something

} else {
AlertDialog.Builder alertbuilder = new AlertDialog.Builder(
MyActivity.this;

alertbuilder.setTitle("Internet");
alertbuilder.setMessage("Internet is not available");
alertbuilder.setNeutralButton("Ok", okClickListener);
//alertbuilder.setIcon(R.drawable.warning);
alertbuilder.show();
}
} else {
AlertDialog.Builder alertbuilder = new AlertDialog.Builder(
MyActivity.this);

alertbuilder.setTitle("Internet");
alertbuilder.setMessage("Internet is not available");
alertbuilder.setNeutralButton("Ok", okClickListener);

alertbuilder.show();
}