显示启动Service服务简单栗子

安卓大作业第一题突然间要求有Service服务，使用Toast在界面上产生提示消息，于是。。

效果如下：

代码如下：

额，照着书上打的。

package com.example.helloworld;

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

public class MainActivity extends Activity {
	    
    
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Button startButton=(Button)findViewById(R.id.startButton);
		//Button stopButton=(Button)findViewById(R.id.stopButton);
		
		final Intent serviceIntent = new Intent(this,ServiceSubclass.class);
		
		startButton.setOnClickListener(new Button.OnClickListener(){

			@Override
			public void onClick(View view) {
				startService(serviceIntent);	
			}
		});
		
		
		
	}
   
	

}

package com.example.helloworld;

import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.view.WindowManager;
import android.widget.Toast;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.view.WindowManager;

public class ServiceSubclass extends Service {
	
	public void onCreate() {
		super.onCreate();
		Toast.makeText(this, "1onCreate()", Toast.LENGTH_LONG).show();
	}
	
	@Override
	public void onStart(Intent intent, int startId) {
		super.onStart(intent, startId);
		Toast.makeText(this, "天下无不散筵席", Toast.LENGTH_LONG).show();
	}
		
	@Override
	public void onDestroy() {
		super.onDestroy();
		Toast.makeText(this, "3onDestroy()", Toast.LENGTH_LONG).show();
	}

	@Override
	public IBinder onBind(Intent intent) {
		// TODO Auto-generated method stub
		return null;
	}

	
}