How to make my UIPickerView display all elements of an array

Question

I have a UIPickerView and an array though I can't seem to be able to input all the date from the array into the UIPicker.

I know that the syntax is meant to be like this:

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
   return [treatments objectAtIndex:row];
}

Where treatments is the array name though when I use this it comes up with this error:

-[Treatment isEqualToString:]: unrecognized

I have searched my entire project and can't find the phrase: isEqualToString

Treatment.h file:

#import <Foundation/Foundation.h>

@interface Treatment : NSObject {
    NSString *treatmentid;
    NSString *treatmentName;
    NSString *treatmentPrice;
}

@property (nonatomic, strong) NSString *treatmentid;
@property (nonatomic, strong) NSString *treatmentName;
@property (nonatomic, strong) NSString *treatmentPrice;

@end

All picker codes:

-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
    return [treatments count];
}

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
    return 1;
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
    return [treatments objectAtIndex:row];
}

If you need any more code just say

Thanks in advance

Answer 1

you your Array contain Dictionar or NSMutableDictionar then you must specify value of array with it's key like bellow try to writtern you method like this:

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
   return[[treatments objectAtIndex:row]valueForKey:@"YourKey"];
}

Here is basic Implementation of Picker view sample example code:-

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thepickerView
{
    return 1;
}

- (NSInteger)pickerView:(UIPickerView *)thepickerView numberOfRowsInComponent:(NSInteger)component
{
        return [treatments count];
}

customize displaying lable of UIpickerview like bellow:-

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
{
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 300, 37)];



        if (component == 0) {

            label.font=[UIFont boldSystemFontOfSize:22];
            label.textAlignment = UITextAlignmentCenter;
            label.backgroundColor = [UIColor clearColor];



            label.text = [NSString stringWithFormat:@"%d", row];
            label.font=[UIFont boldSystemFontOfSize:22];

             NSLog(@"%@",[yourpickerview selectedRowInComponent:component]);

        }

    return label;

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

   NSLog(@"%@",[treatments objectAtIndex:row]);

}