Is there a design pattern for dropdown lists in iOS?

1. How many types of dropdowns are there?
2. What can I use instead of dropdown?
3. How do Dropdowns work?
4. What is static dropdown?

How many types of dropdowns are there?

I also want to clarify that there are two main types of dropdowns: those used for navigation and those used in forms.

What can I use instead of dropdown?

Testing generally reveals that open text fields or radio buttons are the preferred implementation instead of dropdowns with either too few or too many options. That is not to say, however, that dropdowns should never be used in such contexts, especially when there are too many choices for users.

How do Dropdowns work?

When the visible item is clicked, other items from the list "drop-down" are shown and the user can choose from those options. For example, many programs have a "File" drop-down menu at the top-left of their screen. Clicking the "File" text generates a new menu with additional options.

What is static dropdown?

The Static Dropdown is for cases when you, as a form author, want to provide, ahead of time, in Form Builder, the list of all the different choices users will be able to choose from. This is in contrast with the Dynamic Dropdown where the list of choices will be loaded at runtime from a service you provide.