Android system only gives a rough permission prompt
interface during the APP installation. The entry of
permissions in the interface is incomplete, and the
explanations are abnormal sketchy. Ordinary users can’t
understand completely so that they just determine
authorization blindly with the purpose to use it. Though many
management softwares have the functionality of permissions
query, such as Kingsoft guards and tencent mobile phone
housekeeper, they check only partial permissions from that
the APPs have applied for, or they only give a rough
explanation of the permissions which is too simple to
understand, or they invoke the sketchy permission list directly
from the Android system settings.