如何在swift中为不同分辨率更改一个元素的位置

I created an application to pure code other elements are resized as do tests on different simulators , but one element is not positioned automatically , how I add the appropriate constraints to be always positioned on the right bank of the devices and resize each type of resolution , obviously I can not add the constraints dynamically as everything was done with code , how it should do this but with code.I created an application to pure code other ele