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(1,notification);      
            break;

        }
    }
}