Has any one has the implemented drop-down view in their application. The drop-down view should behave like a search suggestion drop-down or a normal drop-down web component vie
you can use a UIPickerView as a Dropdown. Have you tried it?
You can create a tableView and use insert row at index path an make an array of index path then when you select a row, delete rows at indexpath. For the layout you can customize the way you want. I did it in my app it'very fluent.
Here is the sample code to create dropdown view like html in your application. http://code.google.com/p/dropdowndemo/downloads/list
The tutorial is here. http://ameyashetti.wordpress.com/2010/09/26/drop-down-demo/