Popup UIPicker instead of keyboard

Here is a good tutorial to create a UIPicker yourself UIPicker tutorial. Then you can use [self presentModalViewController:picker] to present a modal view controller when user click on the text field. I hoped that you know how to handle text field event

I think this is a more official way to do this:

UIDatePicker *datePicker = [[[UIDatePicker alloc] init] autorelease];
datePicker.datePickerMode = UIDatePickerModeDate;
[datePicker addTarget:self action:@selector(datePickerValueChanged:) forControlEvents:UIControlEventValueChanged];
datePicker.tag = indexPath.row;
textField.inputView = datePicker;

Try this -- very helpful

https://github.com/larsacus/LARSSlidingPicker