在iOS中,应用程序在后台使用“本地通知”时,通知用户发生了某些事情,他们可能需要注意:
本地通知...用于在您的应用有新数据时通知用户,即使您的应用未在前台运行也是如此。例如,消息传递应用可以让用户知道新消息何时到达,并且日历应用可以通知用户即将到来的约会。
Apple dev - Local and Remote Notifications Overview
[如果应用程序本身提供新数据,则为“本地”;如果远程服务器正在发送更新,则为“remote”。
在Android上有同等的地方吗?
如果您也定位旧API,请使用NotificationCompat.Builder。
Intent intent = new Intent(ctx, HomeActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(ctx, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder b = new NotificationCompat.Builder(ctx);
b.setAutoCancel(true)
.setDefaults(Notification.DEFAULT_ALL)
.setWhen(System.currentTimeMillis())
.setSmallIcon(R.drawable.ic_launcher)
.setTicker("Hearty365")
.setContentTitle("Default notification")
.setContentText("Lorem ipsum dolor sit amet, consectetur adipiscing elit.")
.setDefaults(Notification.DEFAULT_LIGHTS| Notification.DEFAULT_SOUND)
.setContentIntent(contentIntent)
.setContentInfo("Info");
NotificationManager notificationManager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1, b.build());
LocalBroadcastManager看起来是一个更好的解决方案:http://developer.android.com/reference/android/support/v4/content/LocalBroadcastManager.html创建您自己的自定义Intent操作,将其广播到您的进程,并确保将任何活动等注册为该意图的接收者。
如果你想用大数据发出本地通知,即在带有标题,Ticker,图标,声音的单一通知中使用多行文字..使用以下代码..我认为它会帮助你..
Intent notificationIntent = new Intent(context,
ReminderListActivity.class);
notificationIntent.putExtra("clicked", "Notification Clicked");
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_SINGLE_TOP); // To open only one activity
// Invoking the default notification service
NotificationManager mNotificationManager;
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
context);
Uri uri = RingtoneManager
.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
mBuilder.setContentTitle("Reminder");
mBuilder.setContentText("You have new Reminders.");
mBuilder.setTicker("New Reminder Alert!");
mBuilder.setSmallIcon(R.drawable.clock);
mBuilder.setSound(uri);
mBuilder.setAutoCancel(true);
// Add Big View Specific Configuration
NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
String[] events = null;
events[0] = new String("Your first line text ");
events[1] = new String(" Your second line text");
// Sets a title for the Inbox style big view
inboxStyle.setBigContentTitle("You have Reminders:");
// Moves events into the big view
for (int i = 0; i < events.length; i++) {
inboxStyle.addLine(events[i]);
}
mBuilder.setStyle(inboxStyle);
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(context,
ReminderListActivity.class);
TaskStackBuilder stackBuilder = TaskStackBuilder
.create(context);
stackBuilder.addParentStack(ReminderListActivity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent = stackBuilder
.getPendingIntent(0, PendingIntent.FLAG_CANCEL_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
mNotificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
// notificationID allows you to update the notification later on.
mNotificationManager.notify(999, mBuilder.build());