by Shawn Veader (@veader) of V8 Logic / V8 Labs, LLC
How to use V8HorizontalPickerView
V8HorizontalPickerView header and implementation files (.h and .m)
along with the protocol header file to your app source and include them in
your project. (I like to keep them in their own group to keep things tidy.)
Implement the necessary delegate and data source protocol methods. Instantiate and add the picker view to your view and wire up the delegate and data source. That's it!
I modeled this after a lot of the standard Apple controls such as
- (NSInteger)numberOfElementsInHorizontalPickerView:(V8HorizontalPickerView *)picker;
Data Source Protocol
- (void)horizontalPickerView:(V8HorizontalPickerView *)picker didSelectElementAtIndex:(NSInteger)index; - (NSString *)horizontalPickerView:(V8HorizontalPickerView *)picker titleForElementAtIndex:(NSInteger)index; - (UIView *) horizontalPickerView:(V8HorizontalPickerView *)picker viewForElementAtIndex:(NSInteger)index; - (NSInteger) horizontalPickerView:(V8HorizontalPickerView *)picker widthForElementAtIndex:(NSInteger)index;
The protocol requires the width method to be implemented and for either the title or view *ForElementAtIndex: method to be implemented. (ie: you don't need both)
Using Views for Elements
If you are going to implement the
data source method, make sure your view conforms to the
Thanks for taking the time to check out the project. Let me know via the GitHub issues feature if you find any bugs or have feature requests. Please drop me a note and let me know if you use this in a project that hits the AppStore.