When the device version is less than 10.0, the navigationBar display heighter.

[XiangNanLi]

I saw the code , when the version is less than 10.0, the overlay 's height is heighter 20 than before.
if (SYSTEM_VERSION_LESS_THAN(@"10.0")) { self.overlay = [[UIView alloc] initWithFrame:CGRectMake(0, -20, CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds) + 20)]; } else { self.overlay = [[UIView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds) + 20)]; }

[ltebean]

fixed in v2.1.5