If not, and if you require pixel-perfect accuracy with no aliasing, you'll have to do some Canvas work.

This is because a 1.dp line will not always align to the display's pixel grid. You can use Dp.Hairline to get a true single-pixel line, but that can be almost invisible on a high-density display. But in most real-world scenarios, including 1080p phone displays, you'll be hard-pressed to notice aliasing artifacts.