i just started a new Sprite Kit project to learn how to use it. I watched and read a lot of tutorials but no tutorial has a answer for my question/problem.
I want to
I got the same issue with you. After several days googling and trying, finally I got the key of this problem. You can try to change your scene.scaleMode several times, until you got the size which you satisfied with. I just found this last night, so if you want to know more, here is a link
https://developer.apple.com/library/ios/documentation/SpriteKit/Reference/SKScene_Ref/Reference/Reference.html#//apple_ref/doc/uid/TP40013024-CH1-DontLinkElementID_3