Android中关于Notification及NotificationManger的详解

<Button
android:id="@+id/showButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="showNotification" />

<Button
android:id="@+id/cancelButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="cancelNotification" />

public class MainActivity extends Activity implements OnClickListener {
 private Context mContext = this;
 private Button showbtn, calclebtn;
 private Notification noti;
 private NotificationManager notiManger;
 private static int NOTIFICATION_ID = 0x0001;

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

 private void setUpViews() {
  showbtn = (Button) findViewById(R.id.showButton);
  calclebtn = (Button) findViewById(R.id.cancelButton);
  noti = new Notification(R.drawable.ic_launcher, "this is a notification", System.currentTimeMillis());
  noti.defaults = Notification.DEFAULT_SOUND;// 使用默认的提示声音
  noti.defaults |= Notification.DEFAULT_VIBRATE;// 添加震动
  notiManger = (NotificationManager) this.getSystemService(mContext.NOTIFICATION_SERVICE);//获取NofificationManger对象
  showbtn.setOnClickListener(this);//让Activity实现接口OnClickListener可以简单的通过此两行代码添加按钮点击响应事件
  calclebtn.setOnClickListener(this);
 }

 // 按钮点击事件响应
 @Override
 public void onClick(View v) {
  if (v == showbtn) {
   Intent intent = new Intent(this.getApplicationContext(),this.getClass());
   // 设置Intent.FLAG_ACTIVITY_NEW_TASK
   intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
   PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, 0);
   // noti.setLatestEventInfo(context, contentTitle, contentText, contentIntent)设置(上下文，标题，内容，PendingInteng)
   noti.setLatestEventInfo(this, "10086", "你从此以后免除所有话费", contentIntent);
   // 发送通知(消息ID，通知对象)
   notiManger.notify(NOTIFICATION_ID, noti);
  } else if (v == calclebtn) {
   // 取消通知(id)
   notiManger.cancel(NOTIFICATION_ID);
  }
 }
}