Question

I have 1 UIPicker with 5 components, all numbers 1-9. I just want all 5 components to show up in the UITextfield. I have a feeling there is a much shorter code for this than what I have:

NSString *result = [metricMillimeterArray objectAtIndex:[metricMillimeterPicker selectedRowInComponent:0 & [metricMillimeterPicker selectedRowInComponent:1]& [metricMillimeterPicker selectedRowInComponent:2]& [metricMillimeterPicker selectedRowInComponent:3]& [metricMillimeterPicker selectedRowInComponent:4]]];

Answer 1

I can’t tell what your objects are that are returned, but if

[metricMillimeterArray objectAtIndex:[metricMillimeterPicker selectedRowInComponent:0]

commands return strings (that are one character long) then you will need to:

result = [NSString stringWithFormat:@"%d mm", 
    10000 * [metricMillimeterPicker selectedRowInComponent:0] + 
    1000 *  [metricMillimeterPicker selectedRowInComponent:1] + 
    100 *   [metricMillimeterPicker selectedRowInComponent:2] +
    10 *    [metricMillimeterPicker selectedRowInComponent:3] + 
            [metricMillimeterPicker selectedRowInComponent:4] ];

This is assuming that your component 4 is your least significant, but the powers of 10 can be swapped if that part I got wrong.