alhamdulillah, наконец-то я мог бы скомбинировать кнопку и графику, используя относительное разложение по кодированию. Вот источник.
public class Diagram extends Activity {
/** Called when the activity is first created. */
grafik mgrafik;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
RelativeLayout rel = new RelativeLayout (this);
rel.setLayoutParams(new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
mgrafik = new grafik(this);
RelativeLayout.LayoutParams grf = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
grf.addRule(RelativeLayout.CENTER_HORIZONTAL);
Button btn = new Button(this);
btn.setText("Kembali");
RelativeLayout.LayoutParams pbtn = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
pbtn.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
rel.addView(mgrafik, grf);
rel.addView(btn, pbtn);
setContentView(rel);
}
}
Спасибо всем за помощь.