1.XML按钮定义

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2.后台代码创建控件并注册事件

import android.annotation.SuppressLint;import android.app.Activity;import android.app.ActionBar.LayoutParams;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.LinearLayout;/** * 简单动态产生按钮，并绑定事件 *  * @author zhongyang * */public class Button_Two extends Activity {    private LinearLayout parentLayout = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        // 指定布局面板        createParentLayout();        // 创建按钮        CreateButton();    }    // 产生布局面板    @SuppressLint("NewApi")    private void createParentLayout() {        parentLayout = new LinearLayout(this);        LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT,                LayoutParams.MATCH_PARENT);        parentLayout.setLayoutParams(layoutParams);        setContentView(parentLayout);    }    // 添加按钮并注册事件    @SuppressLint("NewApi")    private void CreateButton() {        Button btnOne = new Button(this);        btnOne.setText("显示其他Activity");        btnOne.setOnClickListener(new btnOneListener());        LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT,                LayoutParams.WRAP_CONTENT);        btnOne.setLayoutParams(layoutParams);        parentLayout.addView(btnOne);    }    // 按钮点击事件方法    class btnOneListener implements View.OnClickListener {        public void onClick(View v) {            Button thisBtn = (Button) v;            thisBtn.setWidth(100);            thisBtn.setText("按钮点击事件触发了");        }    }}

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3.XML创建控件 注册click事件

import android.app.Activity;import android.content.res.ColorStateList;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView;/** * 访问布局视图中的按钮并注册事件 * @author zhongyang * */public class ButtonThree extends Activity {    private TextView txtOne = null;    private Button btnOne = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        // 设置布局视图，初始化控件        setContentView(R.layout.button_three);        txtOne = (TextView) this.findViewById(R.id.txtOne);        btnOne = (Button) this.findViewById(R.id.btnOne);    }    // 按钮点击事件    public void btnOneClick(View view) {        Button btn = (Button) view;        btn.setTextSize(25);        // 修改TextView的值        txtOne.setText("按钮One触发点击事件");    }}

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