Dropdown Menu for iOS with many customizable parameters to suit any needs.

Inspired by UIPickerView.

Installation

Manually

• Add MKDropdownMenu folder to your Xcode project.
• #import "MKDropdownMenu.h" in your code.

Usage

See the example Xcode project.

Basic setup

Create the MKDropdownMenu instance and add it as a subview to your view. Set the dataSource and delegate properties to your view controller implementing MKDropdownMenuDataSource and MKDropdownMenuDelegate protocols.

MKDropdownMenu *dropdownMenu = [[MKDropdownMenu alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
dropdownMenu.dataSource = self;
dropdownMenu.delegate = self;
[self.view addSubview:dropdownMenu];

Interface Builder

You can also set up the MKDropdownMenu in Interface Builder.

• Add a UIView and set its class to MKDropdownMenu in the Identity inspector.
• Connect the dataSource and delegate outlets to your view controller.

Populating the data

The MKDropdownMenuDataSource and MKDropdownMenuDelegate protocols APIs are inspired by the UIPickerView interface, so most of the methods should be familiar if you used it before.

Implement the following dataSource methods:

- (NSInteger)numberOfComponentsInDropdownMenu:(MKDropdownMenu *)dropdownMenu;
- (NSInteger)dropdownMenu:(MKDropdownMenu *)dropdownMenu numberOfRowsInComponent:(NSInteger)component;

and the delegate methods that suit your needs. The most simple way to get started is to provide the titles for the header components and the rows in the following delagate methods:

- (NSString *)dropdownMenu:(MKDropdownMenu *)dropdownMenu titleForComponent:(NSInteger)component;
- (NSString *)dropdownMenu:(MKDropdownMenu *)dropdownMenu titleForRow:(NSInteger)row forComponent:(NSInteger)component;

You can also provide an NSAttributedString or custom UIView as the display data for MKDropdownMenu in the corresponding delegate methods.

Customizations

The appearance and behavior of the MKDropdownMenu can be customized by setting its property values or implementing the corresponding delegate methods.

The default menu appearance can be customized throughout the app using the available UI_APPEARANCE_SELECTOR properties.

Requirements

• iOS 8+
• Xcode 8+

License

MKDropdownMenu is available under the MIT license. See the LICENSE file for more info.