First time using GS

DannyL

Hi all, this is my first time using GS, or any app developing tool to be honest, and I am in need of some help!
I have searched for a good while on the forums for what I need but can't seem to find it.

I have an idea for an interactive book/guide app to be used preferably on multiple devices (just iOS, for now)
but I don't understand how to make this possible with iPad, iPhone 4,4s,5 etc without losing anything in the way of cutting off the image or image quality. I assume it will be easiest to have it locked in portrait mode.

Of course I want it to be high quality so should I just stick to Retina screen iPhones?

Another reason I am confused about this is that, I assume to work with iPhones it would be a different screen size, depending on the iPhone, or does GS do this all for you?

On a side note, if I want to create high quality images and backgrounds, what size canvas should I be using for backgrounds for each device?

For example, I have read that Retina requires at least 2x resolution, so for iPhone 5, with a resolution of 1136 x 640 pixels, I would use a canvas on Illustrator or Photoshop with dimensions of 2272 x 1280 pixels? Then what about if I am also publishing it for non-retina screens, will I have to make new images with reduced resolution?

Thanks!

-Danny

Socks

@DannyL said:
I assume it will be easiest to have it locked in portrait mode.

Turing a screen 90 degrees doesn't changes it's relationship to other screens.

@DannyL said:
Another reason I am confused about this is that, I assume to work with iPhones it would be a different screen size, depending on the iPhone, or does GS do this all for you?

The important thing is aspect ratio.

@DannyL said:
On a side note, if I want to create high quality images and backgrounds, what size canvas should I be using for backgrounds for each device?

The screen resolution of all iDevices is easily available online, just Google whatever device you need to find out about + 'resolution'.

@DannyL said:
For example, I have read that Retina requires at least 2x resolution, so for iPhone 5, with a resolution of 1136 x 640 pixels, I would use a canvas on Illustrator or Photoshop with dimensions of 2272 x 1280 pixels?

No, just 1136 x 640 pixels, the x2 resolution refers to your GS project size.

@DannyL said:
Then what about if I am also publishing it for non-retina screens, will I have to make new images with reduced resolution?

These will be automatically generated for you when publishing.