How do I create objects within viewport width

The main objects in my game are 90 x 90 pixels and have the bullet behavior. They travel at an angle of 90 and 180. Testing my game over lan using letterbox scale everything seemed fine, but with scale outer they are too far away from the edge of the viewport on the X axis.

I tried following some demo examples but now they are created too far outside the viewport on some phones, tablets.

How can i make sure they are always created within the viewport width?

Would it stay constant across different phones?

Thanks for any input and help.

Still stumped on how to create these objects so they are only created just outside the viewport on the Y axis, but within the dimensions of the X axis.

Example: Layout is 576 X 896, window is 320 X 640. Objects should be created at : X random (45, 275) Y -90

On scale outer the window shows more of the layout, and the objects are created around 100 pixels inside the edgeof the window.

First you have to centre the layout. After that things are pretty easy.

https://www.dropbox.com/s/e743o85fw15id ... .capx?dl=0

Sample by puntodamar

Support Multiple Screen Size: https://www.dropbox.com/s/hjvxbtroe1g8d ... .capx?dl=0

Might give you the idea.