Multiple Pickerview with differents values - objective-c

Question

I have 5 tables, and I have to make an UIPickerView for each one.
I created one, like this
How can I do with the 4 others table ? I have to make 4 copy of this code ?
I do not know if I'm the right way to create my UIPickerView , I would like confirmation (or not).
This is what I did (I took the code from my colleague, who is also a beginner)
This is the right way to do ?
How to adapt it if I UIPickerViews 5 ?
#property (nonatomic, strong) UITextField *pickerViewDossier;
- (void)viewDidLoad {
[super viewDidLoad];
self.pickerViewDossier = [[UITextField alloc] initWithFrame:CGRectZero];
[self.view addSubview:self.pickerViewDossier];
UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
pickerView.showsSelectionIndicator = YES;
pickerView.dataSource = self;
pickerView.delegate = self;
self.pickerViewDossier.inputView = pickerView;
UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
toolBar.barStyle = UIBarStyleBlackOpaque;
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithTitle:#"Valider" style:UIBarButtonItemStyleDone target:self action:#selector(doneTouched:)];
UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc] initWithTitle:#"Annuler" style:UIBarButtonItemStyleDone target:self action:#selector(cancelTouched:)];
[toolBar setItems:[NSArray arrayWithObjects:cancelButton, [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil], doneButton, nil]];
self.pickerViewDossier.inputAccessoryView = toolBar;
self.listeSuiviDossier = [NSArray arrayWithObjects:#"Vous-même", #"Un confrère",nil];
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
return listeSuiviDossier.count;
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
NSString *titrePickerview = listeSuiviDossier[row];
return titrePickerview;
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
NSString *titrePickerview = listeSuiviDossier[row];
[suiviDossierBouton setTitle:titrePickerview forState:UIControlStateNormal];
}
- (IBAction)suiviDossierAction:(id)sender {
[self.pickerViewDossier becomeFirstResponder];
}
- (void)cancelTouched:(UIBarButtonItem *)sender
{
[self.pickerViewDossier resignFirstResponder];
[suiviDossierBouton setTitle:#"Sélectionnez" forState:UIControlStateNormal];
}
- (void)doneTouched:(UIBarButtonItem *)sender
{
[self.pickerViewDossier resignFirstResponder];
}

Answer 1

Use tag for picker so that you can select what to do for each picker.
For example:
Where you are Declaring your pickers:
picker1.tag = 1
picker2.tag = 2
and for each method:
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger) {
if(pickerView.tag == 1) // you can also use a switch
{
// picker 1
}
else if(pickerView.tag == 2)
{
// picker 2
}
else if(pickerView.tag == 3)
{
// picker 3
}
else if(pickerView.tag == 4)
{
// picker 4
}
}