Protocol

UIPickerViewDataSource

The UIPickerViewDataSource protocol must be adopted by an object that mediates between a UIPickerView object and your application’s data model for that picker view. The data source provides the picker view with the number of components, and the number of rows in each component, for displaying the picker view data. Both methods in this protocol are required.

Declaration

@protocol UIPickerViewDataSource

Topics

Providing Counts for the Picker View

- numberOfComponentsInPickerView:

Called by the picker view when it needs the number of components.

Required.

- pickerView:numberOfRowsInComponent:

Called by the picker view when it needs the number of rows for a specified component.

Required.

Relationships

Inherits From

See Also

Providing the Picker Data

dataSource

The data source for the picker view.