How to achieve mobile phone vibration and jitter effect on Android

<RelativeLayout xmlns:andro
  xmlns:tools="/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:paddingBottom="@dimen/activity_vertical_margin"
  android:paddingLeft="@dimen/activity_horizontal_margin"
  android:paddingRight="@dimen/activity_horizontal_margin"
  android:paddingTop="@dimen/activity_vertical_margin"
  tools:context=".MainActivity" >
  <EditText
    android:
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentTop="true"
    android:layout_marginTop="16dp"
    android:ems="10" >
    <requestFocus />
  </EditText>
  <Button
    android:
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/et_text"
    android:layout_below="@+id/et_text"
    android:layout_marginTop="38dp"
    android:text="submit" />
</RelativeLayout>

package .test11;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
import ;
public class MainActivity extends Activity {
  private EditText et_text;
  private Button btn_submit;
  /**
    * Mobile phone vibrator
    */
  private Vibrator vibrator;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);
    setContentView(.activity_main);
    et_text = (EditText) (.et_text);
    btn_submit = (Button) (.btn_submit);
    // System service for vibration effects    vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
    btn_submit.setOnClickListener(new OnClickListener() {
      String text = et_text.getText().toString().trim();
      public void onClick(View v) {
        if ((text)) {
          (, "Content is empty", 0).show();
          Animation shake = (
              , );
          et_text.startAnimation(shake);
          /*
            * The way of vibration
            */
          // (2000);//Vibrate for two seconds          // Below is a vibration that can make the vibration regular -1: means no repetition 0: cyclic vibration          long[] pattern = { 200, 2000, 2000, 200, 200, 200 };
          (pattern, -1);
        }
      }
    });
  }
}

<?xml version="1.0" encoding="utf-8"?>
<cycleInterpolator xmlns:andro
  android:cycles="7" />

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:andro
  android:duration="1000"
  android:fromXDelta="0"
  android:interpolator="@anim/cycle_7"
  android:toXDelta="10" />

<uses-permission android:name="" />