Xiaomi mobile phone clearing notification column and then clearing corner mark system

Xiaomi notification bar clears message corner and disappears: Xiaomi notification bar clears message corner and disappears. In fact, the code is called and the corner is generated. The reason why I saw that the corner marker was not displayed was because you were already in the app when it was displayed, so the corner marker was cleared. Solution: If we know the reason, we will understand that there is no error in our code. We can't see the corner marker just because we are already in the application. If you want to verify, you can write a delayed thread, and then let the app enter the background. After the notice is sent, you will find that you can see the corner mark.