Android开发教程：动态添加控件
package com.mrzhu.edittest;
import android.app.Activity;
import android.os.Bundle;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
public class EditTestActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//自定义的带提示文本的EditText组件
EditTextTest ed = new EditTextTest(this);
//设置从左边140px处开始输入文本
ed.setPadding(140, 0, 0, 0);
//装载一个布局文件，向这个布局中动态添加一个EditText
RelativeLayout relativeLayout = (RelativeLayout) getLayoutInflater().inflate(R.layout.main, null);
//创建一个LayoutParams对象
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
//设置android:layout_below属性的值
layoutParams.addRule(RelativeLayout.BELOW, R.id.button2);
//动态添加EditText
relativeLayout.addView(ed, layoutParams);
//设置布局
setContentView(relativeLayout);
}
}
