How to create DropDown in xcode?

Question

I am a very new developer for IOS, i need help, How to create dropdown box in xcode, any one provide me example to create country list in drop down?

Answer 1

Since there are no native DropDown elements in iOS, you could make use of a TextField with custom background and a UITableView to accomplish that. Here is how to go about it.

Pseudocode

• Create a TextField and set it's delegate to parent controller
• Implement UITextFieldDelegate and implement the textFieldShouldBeginEditing method
• Create a new UIViewController and implement UITableView in it programmatically.
• Create a custom protocol and create it's object (delegate) it.
• In textFieldShouldBeginEditing method, load this controller and present it modally passing the required table's data source and set delegate as parent.
• in the new tableViewController, implement UITableViewDelegate and implement the didSelectRowAtIndex path method.
• Upon row selection, call the delegate with passing appropriate data.
• dismiss the modally presented controller.