To install Materialize in your angular app. You just need to follow 2 steps.

-
Install the
materialize-cssnode package in your application.
This will install Materialize CSS.npm install materialize-css --save -
Open
angular.jsonfile & add below styles & scripts."styles": [ "./node_modules/materialize-css/dist/css/materialize.css", ], "scripts": [ "./node_modules/materialize-css/dist/js/materialize.js" ] - You are done. Now re-run your application.