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【Android笔记】Notification和NotificationManager的基本使用方法

 
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1. NotificationManager和Notification用来设置通知。

通知的设置等操作相对比较简单,基本的使用方式就是用新建一个Notification对象,然后设置好通知的各项参数,然后使用系统后台运行的NotificationManager服务将通知发出来。

基本步骤如下:

1)得到NotificationManager:

String ns = Context.NOTIFICATION_SERVICE;

NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);

2)创建一个新的Notification对象:

Notification notification = new Notification();

notification.icon = R.drawable.notification_icon;

也可以使用稍微复杂一些的方式创建Notification:

int icon = R.drawable.notification_icon; //通知图标

CharSequence tickerText = "Hello"; //状态栏(Status Bar)显示的通知文本提示

long when = System.currentTimeMillis(); //通知产生的时间,会在通知信息里显示

Notification notification = new Notification(icon, tickerText, when);

3)填充Notification的各个属性:

Context context = getApplicationContext();

CharSequence contentTitle = "My notification";

CharSequence contentText = "Hello World!";

Intent notificationIntent = new Intent(this, MyClass.class);

PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);

Notification提供了丰富的手机提示方式:

a)在状态栏(Status Bar)显示的通知文本提示,如:

notification.tickerText = "hello";

b)发出提示音,如:

notification.defaults |= Notification.DEFAULT_SOUND;

notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3");

notification.sound = Uri.withAppendedPath(Audio.Media.INTERNAL_CONTENT_URI, "6");

c)手机振动,如:

notification.defaults |= Notification.DEFAULT_VIBRATE;

long[] vibrate = {0,100,200,300};

notification.vibrate = vibrate;

d)LED灯闪烁,如:

notification.defaults |= Notification.DEFAULT_LIGHTS;

notification.ledARGB = 0xff00ff00;

notification.ledOnMS = 300;

notification.ledOffMS = 1000;

notification.flags |= Notification.FLAG_SHOW_LIGHTS;

4)发送通知:

private static final int ID_NOTIFICATION = 1;

mNotificationManager.notify(ID_NOTIFICATION, notification);

2. 通知的更新

如果需要更新一个通知,只需要在设置好notification之后,再调用setLatestEventInfo,然后重新发送一次通知即可。

3. 自定义通知视图

这部分可以参考官方文档,讲的很详细了。

AndroidSDK: docs/guide/topics/ui/notifiers/notifications.html

参考文档:

AndroidSDK1.5 : docs/guide/topics/ui/notifiers/notifications.html

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