Does Android support near real time push notification?

Does Android support near real time push notification?

android push-notification

android

How does push notification technology work on Android?

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android

Android Push Notifications: Icon not displaying in notification, white square shown instead

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android

What to use now that FirebaseInstanceId.getInstance().getToken() is deprecated [duplicate]

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android

Android: Test Push Notification online (Google Cloud Messaging) [closed]

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android

No notification sound when sending notification from firebase in android

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android

Handling registration ID changes in Google Cloud Messaging on Android

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android

Why do I get "MismatchSenderId" from GCM server side?

android push-notification google-cloud-messaging

android

Android Push Notification (GCM), is there any Daily Limit?

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android

Generate int unique id as android notification id

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android

Is Firebase Cloud Messaging free?

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android

Android Color Notification Icon

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android

Push notifications (GCM) permission at runtime?

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android

In what period does the firebase's app token changes and how to manage it?

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android

Weird push message received on app start

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android