import android.os.Bundle;\r
import android.os.Handler;\r
import android.os.Message;\r
-import android.support.v7.app.AppCompatActivity;\r
+import android.app.Activity;\r
import android.util.Log;\r
import android.view.View;\r
import android.widget.Button;\r
import org.iotivity.service.ns.common.TopicsList;\r
import org.iotivity.service.ns.common.Topic;\r
\r
-public class MainActivity extends AppCompatActivity\r
+public class MainActivity extends Activity\r
{\r
private final String TAG = "NS_MAIN_ACTIVITY";\r
\r