Android ActivityGroup的使用代碼將子activty 的layout加入到主activity中

想代碼實現 將子activity的所用的layout加入到主activty中的layout

public class ForMactivity extends ActivityGroup {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentVIEw(R.layout.form);

LocalActivityManager m = getLocalActivityManager();

Intent intent = new Intent().setClass(this, ContactFIEldActivity.class);

Window w = m.startActivity("tratat", intent);

View v = w.getDecorVIEw();

LinearLayout container = (LinearLayout)findViewById(R.id.fIEldsContainer);

container.addVIEw(v);

}

}