android学习笔记(三)--布局

使用代码插入布局：

package com.myandorid.labs;

import android.app.ActionBar.LayoutParams;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ScrollView;

public class ScrollActivity extends Activity {
/** Called when the activity is first created. */
String[] webSites={"网易:www.163.com","腾讯:www.qq.com","360：www.360.cn"};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
LinearLayout layout = new LinearLayout(this);
ScrollView scroll = new ScrollView(this);

LayoutParams parm = new LayoutParams(LayoutParams.WRAP_CONTENT|LayoutParams.WRAP_CONTENT);
layout.setOrientation(layout.VERTICAL);
scroll.setLayoutParams(parm);

setContentView(scroll);
layout.setLayoutParams(parm);

scroll.addView(layout);

for(int i =0;i<webSites.length;i++)
{
Button button = new Button(this);
button.setText(webSites[i]);
layout.addView(button);

}

}
}