如下是使用示例代码:android
//建立一个NotificationManager的引用 String ns = Context.NOTIFICATION_SERVICE; NotificationManager mNotificationManager = (NotificationManager)getSystemService(ns); //定义Notification的各类属性 int icon = R.drawable.icon; //通知图标 CharSequence tickerText = "Hello"; //状态栏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 //用上面的属性初始化Nofification Notification notification = new Notification(icon,tickerText,when); /* * 添加声音 * notification.defaults |=Notification.DEFAULT_SOUND; * 或者使用如下几种方式 * notification.sound = Uri.parse("file:///sdcard/notification/ringer.mp3"); * notification.sound = Uri.withAppendedPath(Audio.Media.INTERNAL_CONTENT_URI, "6"); * 若是想要让声音持续重复直到用户对通知作出反应,则能够在notification的flags字段增长"FLAG_INSISTENT" * 若是notification的defaults字段包括了"DEFAULT_SOUND"属性,则这个属性将覆盖sound字段中定义的声音 */ /* * 添加振动 * notification.defaults |= Notification.DEFAULT_VIBRATE; * 或者能够定义本身的振动模式: * long[] vibrate = {0,100,200,300}; //0毫秒后开始振动,振动100毫秒后中止,再过200毫秒后再次振动300毫秒 * notification.vibrate = vibrate; * long数组能够定义成想要的任何长度 * 若是notification的defaults字段包括了"DEFAULT_VIBRATE",则这个属性将覆盖vibrate字段中定义的振动 */ /* * 添加LED灯提醒 * notification.defaults |= Notification.DEFAULT_LIGHTS; * 或者能够本身的LED提醒模式: * notification.ledARGB = 0xff00ff00; * notification.ledOnMS = 300; //亮的时间 * notification.ledOffMS = 1000; //灭的时间 * notification.flags |= Notification.FLAG_SHOW_LIGHTS; */ /* * 更多的特征属性 * notification.flags |= FLAG_AUTO_CANCEL; //在通知栏上点击此通知后自动清除此通知 * notification.flags |= FLAG_INSISTENT; //重复发出声音,直到用户响应此通知 * notification.flags |= FLAG_ONGOING_EVENT; //将此通知放到通知栏的"Ongoing"即"正在运行"组中 * notification.flags |= FLAG_NO_CLEAR; //代表在点击了通知栏中的"清除通知"后,此通知不清除, * //常常与FLAG_ONGOING_EVENT一块儿使用 * notification.number = 1; //number字段表示此通知表明的当前事件数量,它将覆盖在状态栏图标的顶部 * //若是要使用此字段,必须从1开始 * notification.iconLevel = ; // */ //设置通知的事件消息 Context context = getApplicationContext(); //上下文 CharSequence contentTitle = "My Notification"; //通知栏标题 CharSequence contentText = "Hello World!"; //通知栏内容 Intent notificationIntent = new Intent(this,Main.class); //点击该通知后要跳转的Activity PendingIntent contentIntent = PendingIntent.getActivity(this,0,notificationIntent,0); notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent); //把Notification传递给NotificationManager mNotificationManager.notify(0,notification);
(2)、使用自定义的Notification若是想要更新一个通知,只须要在设置好notification以后,再次调用 setLatestEventInfo(),而后从新发送一次通知便可,即再次调用notify()。数组
要建立一个自定义的Notification,可使用RemoteViews。要定义本身的扩展消息,首先要初始化一个RemoteViews对象,而后将它传递给Notification的contentView字段,再把PendingIntent传递给contentIntent字段。如下示例代码是完整步骤:布局
//一、建立一个自定义的消息布局 view.xml <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="10dp" /> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="fill_parent" android:textColor="#000" /> </LinearLayout>
//二、在程序代码中使用RemoteViews的方法来定义image和text。而后把RemoteViews对象传到contentView字段 RemoteViews contentView = new RemoteViews(getPackageName(),R.layout.view); contentView.setImageViewResource(R.id.image,R.drawable.icon); contentView.setTextViewText(R.id.text,”Hello,this message is in a custom expanded view”); notification.contentView = contentView; //三、为Notification的contentIntent字段定义一个Intent(注意,使用自定义View不须要setLatestEventInfo()方法) Intent notificationIntent = new Intent(this,Main.class); PendingIntent contentIntent = PendingIntent.getActivity(this,0,notificationIntent,0); notification.contentIntent = contentIntent; //四、发送通知 mNotificationManager.notify(2,notification); //如下是所有示例代码 //建立一个NotificationManager的引用 String ns = Context.NOTIFICATION_SERVICE; NotificationManager mNotificationManager = (NotificationManager)getSystemService(ns); //定义Notification的各类属性 int icon = R.drawable.icon; //通知图标 CharSequence tickerText = "Hello"; //状态栏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 //用上面的属性初始化Nofification Notification notification = new Notification(icon,tickerText,when); RemoteViews contentView = new RemoteViews(getPackageName(),R.layout.view); contentView.setImageViewResource(R.id.image, R.drawable.iconempty); contentView.setTextViewText(R.id.text, "Hello,this is JC"); notification.contentView = contentView; Intent notificationIntent = new Intent(this,Main.class); PendingIntent contentIntent = PendingIntent.getActivity(this,0,notificationIntent,0); notification.contentIntent = contentIntent; //把Notification传递给NotificationManager mNotificationManager.notify(0,notification);