Android Notification通知栏使用

package com.example.mynotifycation;

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Notification.Builder;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
/**
 * Notifycation 使用总结
 * @Describe: 
 * @package: com.example.mynotifycation
 * @author shaobn
 * @date 2015-9-14 下午3:32:30
 */
public class MainActivity extends Activity {
    private Button button;
    private NotificationManager notificationManager;
    private Notification.Builder builder;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button = (Button) this.findViewById(R.id.button1);
        notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        builder = new Notification.Builder(MainActivity.this);
        button.setOnClickListener(new View.OnClickListener() {
            
            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Intent intent = new Intent(MainActivity.this,MainActivity.class);
                //PendingIntent是Intent的一种封装，并不是立刻执行intent，只有在响应pendingIntent后才执行intent
                PendingIntent pIntent = PendingIntent.getActivity(MainActivity.this, 1, intent, 1);
                builder.setContentIntent(pIntent);
                builder.setContentTitle("notify");
                builder.setContentText("hello world");
　　　　　　　　　　　//必须要有设置图片，否则出不来
                builder.setSmallIcon(R.drawable.ic_launcher);
                builder.setTicker("通知来了");
//                builder.setDefaults(Notification.DEFAULT_VIBRATE);
                //停100ms，震动250ms，再停1000ms，再震动500ms,注意需要在配置文件中声明震动权限 android.permission.VIBRATE
                long [] ll = {100, 250, 1000, 500};
                builder.setVibrate(ll);
                Notification notification = builder.build();
                notificationManager.notify(100, notification);
            }
        });
    }
}