Top right corner switch can open or close the Floating window
"Millet,Meizu" some models need permission to open the Floating window (System Settings - Applications -SoftCircle- Permission Management - Floating window
To open the "Resident notification bar" can reduce the possibility of being cleared of the software
"Screen lock" need to activate the device manager to obtain permission. System Settings - Security (Privacy) - Device Management -SoftCircle (activated)
Open the "Hidden in the applications", the Floating window display only the desktop (including whitelist application list)
After uninstalled program related shortcut menu, proposed to re-select a new program.