Push messaging is everywhere. You can see it used in almost all of the top apps today. If you take a look at your most frequently used apps, they tend to have a couple of things in common. They almost always provide a very useful service and they typically employ push messaging to deliver the service in a timely manner.
CITATION STYLE
Wickham, M. (2018). Push Messaging. In Practical Android (pp. 135–172). Apress. https://doi.org/10.1007/978-1-4842-3333-7_6
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