How do I use multiple pickers?

Question

My app collects various types of information and sends it off to our server. Some of the questions are of fixed type so I need to use Pickers. When I've used pickers before they are initialised when the app starts with the array of selections. I had thought I would use different pickers through various subViews. Would it be better to use just one Picker and then reset the array used dynamically. If so how do I do this?

you mean that loading same picker with different array on different event? — Yama, Dec 29 '11 at 12:42

score 1 · Accepted Answer · answered Dec 29 '11 at 12:45

Note that each method of both the datasource and the delegate protocols contain a UIPickerView * parameter, for instance:

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView

You need to use it to distinguish between your two instances, as follows:

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
if([pickerView isEqual: pickerOne]{
  // return the appropriate number of components, for instance
     return 3;
}

if([pickerView isEqual: pickerTwo]{
  // return the appropriate number of components, for instance
     return 4;
}
}

Answer copied from http://stackoverflow.com/a/768126/1228. Please read http://blog.stackoverflow.com/2009/06/attribution-required/ — Robert Harvey, May 14 '12 at 18:15

score 0 · Answer 2 · answered Dec 29 '11 at 12:43

0

Give the two different tags. And compare tag for loading your array.

answered Dec 29 '11 at 12:43

Devang

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How do I use multiple pickers?

2 Answers2