Yes,when the keyboard is shown,the blue bars are not visible,and it ok. The real problem is ,that when you want just to read the code in landscape(so no keyboard needed,because it takes half of the screen), it’s the blue bars which are taking more or less half of the screen,which could be used for code showing .

I’m usually using iPhone for code review when I’m far from computer (I can imagine that this is common use case) .So the fact that in such handy scenario,I can’t have full screen view ,is very frustrating :(