CODEWITHSUNDEEP
iosobjective-ccocoa-touchuipickerview
nniroclax
nniroclax

Reputation: 98

Displaying text from multiple components in UIPickerView

I need to display the values most recently selected in a multiple component pickerview in my label

Currently, the label takes the value from the first picker and displays it, but will not properly update the second and third values. Rather it selects the value that's in the same spot as it. For example, if all three arrays had the values of bird, dog, and cat, when I pick 'dog' in the picker view, the label will show three 'dog' values.

What I want to do is display the values of what the user has selected in the pickerview into a label. 

    - (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row
   inComponent:(NSInteger)component {

//log which row is selected in each component
//this shows the values correctly in output
if(component ==1) {
return NSLog(@"Selected Difficulty: %@",[rowTwoItems objectAtIndex:row]);
}
else if(component ==2) {
return NSLog(@"Selected Duration: %@",[rowThreeItems objectAtIndex:row]);
}
else{
    NSLog(@"Selected Type: %@",[rowOneItems objectAtIndex:row]);
}

//define chosen items
//stuck here. tried using a if else statement as above, but of course that would only return the first value in the label
NSString *chosenType = [rowOneItems objectAtIndex:row];
NSString *chosenDifficulty = [rowTwoItems objectAtIndex:row];
NSString *chosenDuration = [rowThreeItems objectAtIndex:row];


[workoutResults setText:[NSString stringWithFormat:@"%@, %@, %@", chosenType, chosenDifficulty, chosenDuration]];

}

Just started learning obj-c, so my apologies if this is a total newbie question. Thanks for any guidance you can give me.

Upvotes: 0

Views: 1621

Answers (1)

James Boutcher
James Boutcher

Reputation: 2613

That method you've got above is called for a single row's change, and not for all. (So the 'row' variable) isn't useful outside of the row that was just changed. You'll want to call selectedRowInComponent:

NSString *chosenType = [rowOneItems objectAtIndex:[pickerView selectedRowInComponent:0]];
NSString *chosenDifficulty = [rowTwoItems objectAtIndex:[pickerView selectedRowInComponent:1]];
NSString *chosenDuration = [rowThreeItems objectAtIndex:[pickerView selectedRowInComponent:2]];

Upvotes: 2

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