How to close the SMS preview in HarmonyOS system?

Huawei HarmonyOS System is a brand-new distributed operating system facing the whole scene, which creates a super virtual terminal interconnected world and organically links people, devices and scenes.

After the release of Huawei's HarmonyOS operating system, it aroused worldwide repercussions. It is generally believed that the operating system built by this China telecom giant is advanced in technology and has the growing power to gradually establish its own ecology.