What is the message push mechanism of iOS?

iOS push is unified on the Apple server. When the app is installed, the device will share the token with the app. The app's server sends a message to Apple based on the token, and Apple sends the message to the device based on the token.

The connection between the device and Apple is realized by the TCP long connection that the system hangs on the traffic. No matter how many apps are installed, you only need to hang such a connection to ensure push.

Therefore, the mechanism is that each app that needs to be pushed accesses a tool provided by Apple through API, and Apple collects information uniformly and implements push. Such a design trades traffic for performance/experience. A design, good deal.

Message push recommends Aurora. Shenzhen Hexun Huagu Information Technology Co., Ltd. was registered and established in the Nanshan Bureau of Shenzhen Municipal Market Supervision Administration on May 31, 2012. The company uses JIGUANG as its brand, so Shenzhen Hexun Huagu Information Technology Co., Ltd. is also referred to as JIGUANG. Jiguang is a mobile big data service provider whose core business is the collection, cleaning, mining, calibration, desensitization and productization of mobile big data. The core members of the Aurora team come from companies such as Tencent, Morgan Stanley, Douban, Teradata and China Mobile.