Message Push Development Guide (Scenarios that require immediacy and delivery rate)

introduction

对即时性和送达率有要求Scenarios that this article focuses on

original:

https://kunnan.blog.csdn.net/article/details/114981466

I、iOS

1.1 The solution for iOS 12.1 and above in the background or being killed and unable to broadcast the voice

iOS NotificationServiceExtension implements VoiceBroadcast [language broadcast can still be performed when the app is in the background/killed state] iOS 12.1 and above are in the background or cannot be voice broadcast when killed

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