IOS判断设备是否已越狱(isJailbroken)

@interface UIDevice (Helper)   - (BOOL)isJailbroken;   @end @implementation UIDevice (Helper)   - (BOOL)isJailbroken {     BOOL jailbroken = NO;     NSString *cydiaPath = @"/Applications/Cydia.app";     NSString *aptPath = @"/private/var/lib/apt/";     if ([[NSFileManager defaultManager] fileExistsAtPath:cydiaPath]) {       jailbroken = YES;     }     if ([[NSFileManager defaultManager] fileExistsAtPath:aptPath]) {       jailbroken = YES;     }     return jailbroken;   }   @end