1、在onCreate方法中找到按钮。
Button button =(Button) this.findViewById(R.id.button);
2、编写按钮监听器
private class ButtonClickListener implements View.OnClickListener{
public void onClick(View v) {
findViewById(R.id.filename);
}
}
此监听器实现View.OnClickListener接口,实现onClick方法。
3、为按钮添加此监听器
button.setOnClickListener(new ButtonClickListener());
代码:
package com.feng.files;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.Button;public class MainActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button button =(Button) this.findViewById(R.id.button); button.setOnClickListener(new ButtonClickListener()); } private class ButtonClickListener implements View.OnClickListener{ public void onClick(View v) { findViewById(R.id.filename); } }}