问题
I am new to auto-layout and struggling with the layout of a view.
I have a UIImage pinned to the superview (0,0,0,0), it is set to aspect to fit.
I am struggling to add labels and buttons that remain in position relative to the image as the device screen size changes
What would be best way to set these labels/buttons to change with screen size and background image? I am trying make each objects height relative to its direct parent and then leading edge of superview.
Any input appreciated
来源：https://stackoverflow.com/questions/30088595/using-auto-layout-with-static-background-image