iOS Question Stretch Layout / Page

Alejandro Migoya

Licensed User
I designed my app using a 320x568 Layout (iPhone 5)
When I run it on an iPhone 6 there are two margins on the bottom and right (the remaining of the bigger screen)

I would like to know if it´s possible to STRETCH the whole layout to cover the whole screen depending on the device screen size.

I don´t want to use any anchors because my app does an intensive use of canvas draw functions.

Any help would be very much appreciated!