My Huawei glory is declining, why can't I lock the application?

Click the Recent Tasks key to open the list of recently used applications.

EMUI 3。 X & mp4.x: Slide the thumbnail down to lock the application. When locked, a small lock icon will appear above the application.

EMUI 5。 X & amp8.x: Click the icon in the upper right corner of the thumbnail to lock the application. When locked, a small lock icon will appear above the application.

EMUI 9。 X / 10。 X & Magic UI 2. X/3。 X: Slide the thumbnail down to lock the application. When locked, a small lock icon will appear above the application.

Locking the background application function is the function of Huawei EMUI system. Huawei enjoys 8e youth, and glory Play 7 uses Android native system, which does not support this function.