Zwei buttons im LinearLayout Horizontal

<LinearLayout android:layout_width="fill_parent" android:orientation="vertical" android:layout_height="wrap_content"
 android:id="@+id/llMain">
 
 
 <LinearLayout android:layout_width="fill_parent" 
 android:orientation="horizontal" 
 android:layout_height="wrap_content"
 android:id="@+id/llMain">
 <Button
 android:id="@+id/22"
 android:layout_width="10dp"
 android:layout_height="10dp" 
 android:background="@drawable/selected_category"
 android:text="ops" />
 
 <Button
 android:id="@+id/12"
 android:layout_width="10dp"
 android:layout_height="10dp"
 android:background="@drawable/test"
 android:text="ups" />
 </LinearLayout>
 </LinearLayout>

public class OverviewActivity extends ActionBarActivity implements OnClickListener {


 LinearLayout llMain=null; LinearLayout llSub = null;
 LinearLayout.LayoutParams llSubParam = null;
 
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 llMain = (LinearLayout) this.findViewById(R.id.llMain);
 llSubParam = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT); 



//Nun wird auf irgendeine Weise diese Funktion aufgerufen.

private void myButton(){
 Button btn = new Button(this);
 btn.setId(TRIM_MEMORY_BACKGROUND);
 btn.setBackgroundResource(R.drawable.selected_category);
 btn.setLayoutParams(llSubParam);
 llSubParam.width=200;
 llSubParam.height=120;
 
 
 switch (currentPos) {
 case 1:
 currentPos=0;//prepair for next position
 llSub = new LinearLayout(this); 
 llSub.setOrientation(LinearLayout.HORIZONTAL); 
 llSub.setLayoutParams(llSubParam); 
 
 btn.setText("links");
 llSub.addView(btn);
 llMain.addView(llSub);
 
 break;
 case 0:
 
 //lp = new RelativeLayout.LayoutParams( 130, 100);
 currentPos=1;//prepair for next position 
 btn.setLayoutParams(llSubParam); 
 btn.setText("rechts"); 
 llSub.addView(btn);
 break;
 }
}