No, igneous rocks do not have layers. Layering in rocks is create through two principle means, the first of which is deposition.

Do igneous rocks have flat layers?

In rocks, it does not show flat faces. It is usually gray in igneous rocks; gray, white, yellow, or red in sedimentary rocks; and gray or white in metamorphic rocks. It has a glassy, or sometimes waxy, look to it. ... In rocks they are usually flakes or layers of flakes.

Do igneous rocks usually have a layered texture?

Igneous rocks can be distinguished from most regional metamorphic rocks by the lack of foliation (layering) in igneous rocks. Unfoliated metamorphic rocks lack igneous textures and usually contain minerals not found in igneous rocks.