package com.arui;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
/** * Example for using ViewGroup. *
* @version 2010/09/07 * */
 
public class MyViewGroup extends ViewGroup {
public MyViewGroup(Context context) {
super(context);
this.initOtherComponent(context);
}
private void initOtherComponent(Context context) {
Button aBtn = new Button(context);
// set id 1 aBtn.setId(1);
aBtn.setText("a btn");
this.addView(aBtn);
Button bBtn = new Button(context);
// set id 2 bBtn.setId(2);
bBtn.setText("b btn");
this.addView(bBtn);
}
 
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
switch (child.getId()) {
case 1:
// 1 is aBtn Log.d("MyViewGroup", "btn1 setting");
child.setVisibility(View.VISIBLE);
child.measure(r - l, b - t);
child.layout(0, 0, child.getMeasuredWidth(), child .getMeasuredHeight());
break;
case 2:
// 2 is bBtn Log.d("MyViewGroup", "btn2 setting");
child.setVisibility(View.VISIBLE);
child.measure(r - l, b - t);
child.layout(0, 50, child.getMeasuredWidth(), child .getMeasuredHeight() + 50);
break;
default: //
}
}
}
}