I'm working with [Sketch](http://www.bohemiancoding.com/sketch/) by Bohemian Coding. It has preset iPhone artboards that include 640x960 and 640x1136, but when I export the images to XCode the size and positions of the images are incorrect. Do I have to resize my images? Is there any way I can create the images in the correct size every time?

Even though the Sketch image is designed for 640x960, in another project I made the images to 640x1136 and it did the same thing.

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**Screenshots**
![enter image description here](https://i.stack.imgur.com/XPIL9.png)

![enter image description here](https://i.stack.imgur.com/Q2XJN.png)