Hello.java

package com.xmobileapp.hello;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

/**
 * �ο�http://www.oschina.net/question/54100_27061
 * 
 * @author ryanlee
 * 
 */
public class Hello extends Activity {

	Button mButton;
	TextView mText;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		mText = (TextView) findViewById(R.id.text);
		mText.setVisibility(View.GONE);

		mButton = (Button) findViewById(R.id.button);
		mButton.setOnClickListener(new ClickMeListener());
	}

	private class ClickMeListener implements OnClickListener {
		public void onClick(View v) {
			mButton.setVisibility(View.GONE);
			mText.setVisibility(View.VISIBLE);
		}
	}

	/**
	 * ������
	 * 
	 * @param i
	 * @param j
	 * @return
	 */
	public int add(int i, int j) {
		return (i + j);
	}
}