Design an iOS interface

06 On the second from top layer, add a Bevel & Emboss Layer Style, set the technique to Chisel Hard, the size to 10px and select Rolling Slope from the Gloss Contour options. Then add an Inner Glow at 70%, Linear Burn, choose a grey colour and set the size to 3px.
 

07 Make the very top layer smaller than the rest: this will add to the 3D effect. Select Bevel & Emboss, set the size to 50px, angle to 90º and altitude to 70 degrees. Add a Gradient Overlay at 10% with a Linear Burn blend mode, and a white to black gradient at 90 degrees with a Linear Burn blend mode. Draw an icon to sit on top (an arrow here).
 

08 Duplicate your button to create any other buttons that you want to add (including different icons on the top layer). Next, create the border of your interface and give it all a bit of polish.
 

09 For the list of radio stations, draw a rectangle shape to cover the main content area, setting the fill to 0%. Add a Bevel & Emboss, with an Outer Bevel style and size of 2px, then add an Inner Shadow at 75% with a Normal blend mode, in black, with a distance of 7px and size of 10px. Add an Inner Glow at 20%, with a Normal blend mode, black colour and 90px size.
 

10 Export the separate parts of your interface by converting each element in different layers to Smart Objects. Name them and, finally, go to File>Scripts>Export Layers To Files.