The problem I am facing is - customer choses carrier and then he/she has to chose location of pickup place from dropdown. Is the dropdown best solution for mobile users? Location lists contains about 100+ items(options).
I have read that dropdown menu is not very mobile user friendly solution. According to this:
Is it more user friendlier to display long lists (when filling a form) inside pop up (modal/pop-up) with search field and radio buttons or not? What are the main cons compares to dropdown (are there any possibilities that advertisement blockers might not show pop-up or ...)?
Has anyone made a user research how difficulty it is to use dropdown in mobile devices when filling forms and are there any alternatives?
When user has chosen the value from pop-up box what are the best practices where should the chosen value appear (checkout page)?