How to draw a shadow around a view

SwiftUI gives us a dedicated shadow() modifier to draw shadows around views. You can control the color, radius, and position of the shadow, and you can also control which parts of the view get shadowed by adjusting your modifier order.

In its basic form, you can add a shadow just by specifying the radius of the blur, like this:

Text("Hacking with Swift")
    .padding()
    .shadow(radius: 5)
    .border(Color.red, width: 4)

That adds a very slight shadow with a 5-point blur centered on the text.

You can also specify which color you want along with the X and Y offset from the original view. For example, this creates a strong red shadow with a 5-point blur, centered on the text:

Text("Hacking with Swift")
    .padding()
    .shadow(color: .red, radius: 5)
    .border(Color.red, width: 4)

If you want to specify offsets for the shadow, add x and/or y parameters to the modifier, like this:

Text("Hacking with Swift")
    .padding()
    .shadow(color: .red, radius: 5, x: 20, y: 20)
    .border(Color.red, width: 4)

Remember, SwiftUI applies modifiers in the order you list them, so if you want you can have your shadow apply to the border as well just by putting the border modifier before the shadow modifier:

Text("Hacking with Swift")
    .padding()
    .border(Color.red, width: 4)
    .shadow(color: .red, radius: 5, x: 20, y: 20)