Cómo ocultar el contenido de las notificaciones en la pantalla de bloqueo

Producto aplicable: HONOR 20(dual sim card 6gb+128gb)，HUAWEI P30(single sim card 6gb+128gb、dual sim card 6gb+128gb、dual sim card 8gb+128gb)，HONOR 20 PRO(dual sim card 8gb+256gb)，HUAWEI Mate 20 X(dual sim card 6gb+128gb)，HUAWEI P30 Pro(single sim card 8gb+256gb、dual sim card 8gb+512gb、single sim card 6gb+128gb、dual sim card 6gb+128gb、dual sim card 8gb+256gb、single sim card 8gb+128gb、dual sim card 8gb+128gb)，HUAWEI Mate 20 Pro(dual sim card 6gb+128gb、single sim card 6gb+128gb)，Honor View 20(dual sim card 6gb+128gb、dual sim card 8gb+256gb)，HUAWEI Mate 20(single sim card 4gb+128gb、dual sim card 4gb+128gb)，HUAWEI Mate 20 X (5G)(dual sim card 8gb+256gb)，HUAWEI nova 5T(dual sim card 6gb+256gb、dual sim card 6gb+128gb、single sim card 6gb+128gb、single sim card 6gb+256gb)