How to make a Button randomly Move

Hey Guys i have a Question about how to make a button randomly move every second

the black tiles are a button

so i want to make it move randomly in every second or more fast

this is my xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://ift.tt/nIICcg"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/backgroundblank" >
                  <Button
                    android:id="@+id/Button01"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:background="@drawable/black1" />
</RelativeLayout>

this is the code

public class tested extends Activity {

Button buttonblack;



@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
    WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.tested);


    buttonblack = (Button)findViewById(R.id.black1);
    buttonblack.setOnClickListener(new View.OnClickListener() {

              public void onClick(View v){
              //if the button clicked
              //Do some logic here
                                         }                
            });

}

anyone can help me?