Setting data for multiple UIPickerView - iphone

Question

I have two UIPickerViews With data being pulled from an array though I can't seem to program them separately. Here is the code that I am using for my UIPickerViews:
-(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]valueForKey:#"treatmentName"];
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
_buttonText.text = [[treatments objectAtIndex:row]valueForKey:#"treatmentName"];
if (![_buttonText.text isEqual: #"Pick a Treatment Name"]) {
_buttonText.textColor = [UIColor blackColor];
}
}
-(NSInteger)nursePicker:(UIPickerView *)nursePicker numberOfRowsInComponent:(NSInteger)component {
return [nurses count];
}
- (NSString *)nursePicker:(UIPickerView *)nursePicker titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
return[[nurses objectAtIndex:row]valueForKey:#"nurseName"];
}
When I run the code the pickers show the same data
Thanks in advance

Answer 1

Store a reference to your two picker views and use the UIPickerView that is passed as an argument to the datasource methods in order to determine which picker view you are using.
-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
if (pickerView == self.nursePicker) {
return [nurses count];
}
else if (pickerView == self.treatmentPicker) {
return [treatments count];
}
}
Same idea for every datasource method

Answer 2

You should put a BOOL to check the data. Create a BOOL called treatment and when the first picker is available set the BOOL to YES and when the second is available set the BOOL to NO. Then check in your methods to see which picker is their and put in the data.
#interface NotesViewController ()
{
BOOL treatment;
}
- (void)firstPickerComesUP
{
treatment = YES;
}
- (void)secondPickerComesUP
{
treatment = NO;
}