notification的创建及应用

之前我用了button.setonclicklistener来获取一个点击事件，但是在new notificationcompat.builder是会报一个没有定义的错误。这种点击事件的方式就不会报那种错误了。

 public class MainActivity extends Activity implements View.OnClickListener {

     private Button sendnotice;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         sendnotice = (Button) findViewById(id.send_notice);
         sendnotice.setOnClickListener(this);
     }

     @Override
     public void onClick(View v) {
         switch (v.getId()) {
         case R.id.send_notice:
             NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
             Notification notification = new NotificationCompat.Builder(this)
                     .setContentTitle("锋少来通知了")     //设置标题
                     .setContentText("去哪里玩啊")        //内容
                     .setWhen(System.currentTimeMillis())  //时间
                     .setSmallIcon(R.drawable.ic_launcher)  //小图片
                     .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher))    //大图片
                     .build();
             manager.notify(,notification);
             break;

         }
     }
 }