关于android 布局中诡异的AttributeSet 搜索记录

package android.widget.Demo;import android.app.Activity;import android.os.Bundle;import android.widget.Button;import android.view.View;import android.widget.Toast;import android.content.Intent;import android.view.View.OnClickListener;import org.xmlpull.v1.XmlPullParser;import android.content.Context;import android.util.AttributeSet;import android.util.Xml;public class Ex07_WidgetDemoActivity extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        Context mContext = this;        XmlPullParser parser = mContext.getResources().getXml(R.layout.togglebutton_layout);        AttributeSet attrs = Xml.asAttributeSet(parser);        Button btn1 = new Button(mContext, attrs, 0);        Button btn2 = new Button(mContext, attrs);        Button btn3= new Button(mContext);        btn1.setText("Hello btn1!");        setContentView(btn1);    }}

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