new AlertDialog.Builder(getApplicationContext())
.setTitle(R.string.search_result_is_null_alert_title)
.setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
public void onClick (DialogInterface dialog, int which) {

}
})
.setNegativeButton(android.R.string.cancel, new OnClickListener(){

@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub

}

}).show();