iOS "Control may reach end of non-void function" - ios

Question

Any idea why I am getting 2 errors of the below code of "Control may reach end of non-void function"? I had it working in a separate app but for some reason coming up with this error now.
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
switch (pickerView.tag) {
case kCATEGORYTYPEPICKERTAG:
return [categoryTypes count];;
break;
case kLOCATIONTYPEPICKERTAG:
return [locationTypes count];
break;
case kORIGINATORTYPEPICKERTAG:
return [originatorTypes count];
break;
case kDESTINATIONTYPEPICKERTAG:
return [destinationTypes count];
break;
case kSTATUSTYPEPICKERTAG:
return [statusTypes count];
break;
default:
break;
}
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
switch (pickerView.tag) {
case kCATEGORYTYPEPICKERTAG:
return [categoryTypes objectAtIndex:row];
break;
case kLOCATIONTYPEPICKERTAG:
return [locationTypes objectAtIndex:row];
break;
case kORIGINATORTYPEPICKERTAG:
return [originatorTypes objectAtIndex:row];
break;
case kDESTINATIONTYPEPICKERTAG:
return [destinationTypes objectAtIndex:row];
break;
case kSTATUSTYPEPICKERTAG:
return [statusTypes objectAtIndex:row];
break;
default:
break;
}
}
Many Thanks
UPDATE
Full code:
#synthesize nameTextField, emailTextField, dateTextField, timeTextField, blankTextField, blankbTextField, mlabelcategory, messageTextView;
#synthesize name, emailaddress, date, time, blank, blankb, category, message;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
categoryTypes = [[NSArray alloc] initWithObjects:#"Appetizers",#"Breakfast",#"Dessert",#"Drinks",
#"Main Dish/Entree", #"Salad", #"Side Dish", #"Soup", #"Snack",
#"Baby Food", #"Pet Food",nil];
locationTypes = [[NSArray alloc] initWithObjects:#"African",#"American",#"Armenian",#"Barbecue",
#"Brazilian", #"British", #"Cajun", #"Central American", #"Chicken",
#"Chinese", #"Cuban",
#"Ethiopian", #"French", #"Greek", #"German", #"Hamburgers",
#"Homestyle Cooking", #"Indian", #"Irish", #"Italian", #"Jamaican",
#"Japanese", #"Korean", #"Mexican", #"Middle Eastern", #"Pakistani",
#"Pancakes /Waffles", #"Persian", #"Pizza", #"Polynesian", #"Russian",
#"Sandwiches", #"Seafood", #"Scandinavian", #"Spanish", #"Soul Food",
#"South American", #"Steak", #"Vegetarian", #"Tex-Mex", #"Thai",
#"Vietnamese",#"Wild Game",nil];
originatorTypes = [[NSArray alloc] initWithObjects:#"African",#"American",#"Armenian",#"Barbecue",
#"Brazilian", #"British", #"Cajun", #"Central American", #"Chicken",
#"Chinese", #"Cuban",
#"Ethiopian", #"French", #"Greek", #"German", #"Hamburgers",
#"Homestyle Cooking", #"Indian", #"Irish", #"Italian", #"Jamaican",
#"Japanese", #"Korean", #"Mexican", #"Middle Eastern", #"Pakistani",
#"Pancakes /Waffles", #"Persian", #"Pizza", #"Polynesian", #"Russian",
#"Sandwiches", #"Seafood", #"Scandinavian", #"Spanish", #"Soul Food",
#"South American", #"Steak", #"Vegetarian", #"Tex-Mex", #"Thai",
#"Vietnamese",#"Wild Game",nil];
destinationTypes = [[NSArray alloc] initWithObjects:#"African",#"American",#"Armenian",#"Barbecue",
#"Brazilian", #"British", #"Cajun", #"Central American", #"Chicken",
#"Chinese", #"Cuban",
#"Ethiopian", #"French", #"Greek", #"German", #"Hamburgers",
#"Homestyle Cooking", #"Indian", #"Irish", #"Italian", #"Jamaican",
#"Japanese", #"Korean", #"Mexican", #"Middle Eastern", #"Pakistani",
#"Pancakes /Waffles", #"Persian", #"Pizza", #"Polynesian", #"Russian",
#"Sandwiches", #"Seafood", #"Scandinavian", #"Spanish", #"Soul Food",
#"South American", #"Steak", #"Vegetarian", #"Tex-Mex", #"Thai",
#"Vietnamese",#"Wild Game",nil];
statusTypes = [[NSArray alloc] initWithObjects:#"African",#"American",#"Armenian",#"Barbecue",
#"Brazilian", #"British", #"Cajun", #"Central American", #"Chicken",
#"Chinese", #"Cuban",
#"Ethiopian", #"French", #"Greek", #"German", #"Hamburgers",
#"Homestyle Cooking", #"Indian", #"Irish", #"Italian", #"Jamaican",
#"Japanese", #"Korean", #"Mexican", #"Middle Eastern", #"Pakistani",
#"Pancakes /Waffles", #"Persian", #"Pizza", #"Polynesian", #"Russian",
#"Sandwiches", #"Seafood", #"Scandinavian", #"Spanish", #"Soul Food",
#"South American", #"Steak", #"Vegetarian", #"Tex-Mex", #"Thai",
#"Vietnamese",#"Wild Game",nil];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
nameTextField.text = nil;
emailTextField.text = nil;
dateTextField.text = nil;
timeTextField.text = nil;
blankTextField.text = nil;
blankbTextField.text = nil;
mlabelcategory.text = nil;
messageTextView.text = nil;
categoryTypePicker = [[UIPickerView alloc] initWithFrame:CGRectMake(300,400,400,160)];
categoryTypePicker.tag = kCATEGORYTYPEPICKERTAG;
categoryTypePicker.showsSelectionIndicator = TRUE;
categoryTypePicker.dataSource = self;
categoryTypePicker.delegate = self;
categoryTypePicker.hidden = YES;
locationTypePicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0,250,400,160)];
locationTypePicker.backgroundColor = [UIColor blueColor];
locationTypePicker.tag = kLOCATIONTYPEPICKERTAG;
locationTypePicker.showsSelectionIndicator = TRUE;
locationTypePicker.hidden = YES;
locationTypePicker.dataSource = self;
locationTypePicker.delegate = self;
originatorTypePicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0,250,400,160)];
originatorTypePicker.backgroundColor = [UIColor blueColor];
originatorTypePicker.tag = kORIGINATORTYPEPICKERTAG;
originatorTypePicker.showsSelectionIndicator = TRUE;
originatorTypePicker.hidden = YES;
originatorTypePicker.dataSource = self;
originatorTypePicker.delegate = self;
destinationTypePicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0,250,400,160)];
destinationTypePicker.backgroundColor = [UIColor blueColor];
destinationTypePicker.tag = kDESTINATIONTYPEPICKERTAG;
destinationTypePicker.showsSelectionIndicator = TRUE;
destinationTypePicker.hidden = YES;
destinationTypePicker.dataSource = self;
destinationTypePicker.delegate = self;
statusTypePicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0,250,400,160)];
statusTypePicker.backgroundColor = [UIColor blueColor];
statusTypePicker.tag = kSTATUSTYPEPICKERTAG;
statusTypePicker.showsSelectionIndicator = TRUE;
statusTypePicker.hidden = YES;
statusTypePicker.dataSource = self;
statusTypePicker.delegate = self;
}
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations.
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)eve
{
if ( !locationTypePicker.hidden) {
locationTypePicker.hidden = YES;
}
if ( !categoryTypePicker.hidden) {
categoryTypePicker.hidden = YES;
}
if ( !originatorTypePicker.hidden) {
originatorTypePicker.hidden = YES;
}
if ( !destinationTypePicker.hidden) {
destinationTypePicker.hidden = YES;
}
if ( !statusTypePicker.hidden) {
statusTypePicker.hidden = YES;
}
}
#pragma mark -
#pragma mark picker methods
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return kPICKERCOLUMN;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
switch (pickerView.tag) {
case kCATEGORYTYPEPICKERTAG:
return [categoryTypes count];;
break;
case kLOCATIONTYPEPICKERTAG:
return [locationTypes count];
break;
case kORIGINATORTYPEPICKERTAG:
return [originatorTypes count];
break;
case kDESTINATIONTYPEPICKERTAG:
return [destinationTypes count];
break;
case kSTATUSTYPEPICKERTAG:
return [statusTypes count];
break;
default: return nil; break;
}
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
switch (pickerView.tag) {
case kCATEGORYTYPEPICKERTAG:
return [categoryTypes objectAtIndex:row];
break;
case kLOCATIONTYPEPICKERTAG:
return [locationTypes objectAtIndex:row];
break;
case kORIGINATORTYPEPICKERTAG:
return [originatorTypes objectAtIndex:row];
break;
case kDESTINATIONTYPEPICKERTAG:
return [destinationTypes objectAtIndex:row];
break;
case kSTATUSTYPEPICKERTAG:
return [statusTypes objectAtIndex:row];
break;
default: return nil; break;
}
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
if (pickerView.tag == kCATEGORYTYPEPICKERTAG) {
NSString *categoryType = [categoryTypes objectAtIndex:[pickerView selectedRowInComponent:0]];
[categoryTypeBtn setTitle:categoryType forState:UIControlStateNormal];
}else if (pickerView.tag == kLOCATIONTYPEPICKERTAG) {
NSString *locationType = [locationTypes objectAtIndex:[pickerView selectedRowInComponent:0]];
[locationTypeBtn setTitle:locationType forState:UIControlStateNormal];
}else if (pickerView.tag == kORIGINATORTYPEPICKERTAG) {
NSString *originatorType = [originatorTypes objectAtIndex:[pickerView selectedRowInComponent:0]];
[originatorTypeBtn setTitle:originatorType forState:UIControlStateNormal];
}else if (pickerView.tag == kDESTINATIONTYPEPICKERTAG) {
NSString *destinationType = [destinationTypes objectAtIndex:[pickerView selectedRowInComponent:0]];
[destinationTypeBtn setTitle:destinationType forState:UIControlStateNormal];
}else if (pickerView.tag == kSTATUSTYPEPICKERTAG) {
NSString *statusType = [statusTypes objectAtIndex:[pickerView selectedRowInComponent:0]];
[statusTypeBtn setTitle:statusType forState:UIControlStateNormal];
}
}
-(IBAction) showLocationTypePicker{
if ( locationTypePicker.hidden) {
locationTypePicker.hidden = NO;
[self.view addSubview:locationTypePicker];
}
else {
locationTypePicker.hidden = NO;
[locationTypePicker removeFromSuperview];
}
if ( categoryTypePicker.hidden) {
categoryTypePicker.hidden = YES;
[self.view addSubview:categoryTypePicker];
}
else {
categoryTypePicker.hidden = YES;
[categoryTypePicker removeFromSuperview];
}
if ( originatorTypePicker.hidden) {
originatorTypePicker.hidden = YES;
[self.view addSubview:originatorTypePicker];
}
else {
originatorTypePicker.hidden = YES;
[originatorTypePicker removeFromSuperview];
}
if ( destinationTypePicker.hidden) {
destinationTypePicker.hidden = YES;
[self.view addSubview:destinationTypePicker];
}
else {
destinationTypePicker.hidden = YES;
[destinationTypePicker removeFromSuperview];
}
if ( statusTypePicker.hidden) {
statusTypePicker.hidden = YES;
[self.view addSubview:statusTypePicker];
}
else {
statusTypePicker.hidden = YES;
[statusTypePicker removeFromSuperview];
}
}
-(IBAction) showCategoryTypePicker{
if ( categoryTypePicker.hidden) {
categoryTypePicker.hidden = NO;
[self.view addSubview:categoryTypePicker];
}
else {
categoryTypePicker.hidden = NO;
[categoryTypePicker removeFromSuperview];
}
if ( locationTypePicker.hidden) {
locationTypePicker.hidden = YES;
[self.view addSubview:locationTypePicker];
}
else {
locationTypePicker.hidden = YES;
[locationTypePicker removeFromSuperview];
}
if ( originatorTypePicker.hidden) {
originatorTypePicker.hidden = YES;
[self.view addSubview:originatorTypePicker];
}
else {
originatorTypePicker.hidden = YES;
[originatorTypePicker removeFromSuperview];
}
if ( destinationTypePicker.hidden) {
destinationTypePicker.hidden = YES;
[self.view addSubview:destinationTypePicker];
}
else {
destinationTypePicker.hidden = YES;
[destinationTypePicker removeFromSuperview];
}
if ( statusTypePicker.hidden) {
statusTypePicker.hidden = YES;
[self.view addSubview:statusTypePicker];
}
else {
statusTypePicker.hidden = YES;
[statusTypePicker removeFromSuperview];
}
}
-(IBAction) showOriginatorTypePicker{
if ( originatorTypePicker.hidden) {
originatorTypePicker.hidden = NO;
[self.view addSubview:originatorTypePicker];
}
else {
originatorTypePicker.hidden = NO;
[originatorTypePicker removeFromSuperview];
}
if ( locationTypePicker.hidden) {
locationTypePicker.hidden = YES;
[self.view addSubview:locationTypePicker];
}
else {
locationTypePicker.hidden = YES;
[locationTypePicker removeFromSuperview];
}
if ( categoryTypePicker.hidden) {
categoryTypePicker.hidden = YES;
[self.view addSubview:categoryTypePicker];
}
else {
categoryTypePicker.hidden = YES;
[categoryTypePicker removeFromSuperview];
}
if ( destinationTypePicker.hidden) {
destinationTypePicker.hidden = YES;
[self.view addSubview:destinationTypePicker];
}
else {
destinationTypePicker.hidden = YES;
[destinationTypePicker removeFromSuperview];
}
if ( statusTypePicker.hidden) {
statusTypePicker.hidden = YES;
[self.view addSubview:statusTypePicker];
}
else {
statusTypePicker.hidden = YES;
[statusTypePicker removeFromSuperview];
}
}
-(IBAction) showDestinationTypePicker{
if ( destinationTypePicker.hidden) {
destinationTypePicker.hidden = NO;
[self.view addSubview:destinationTypePicker];
}
else {
destinationTypePicker.hidden = NO;
[destinationTypePicker removeFromSuperview];
}
if ( locationTypePicker.hidden) {
locationTypePicker.hidden = YES;
[self.view addSubview:locationTypePicker];
}
else {
locationTypePicker.hidden = YES;
[locationTypePicker removeFromSuperview];
}
if ( originatorTypePicker.hidden) {
originatorTypePicker.hidden = YES;
[self.view addSubview:originatorTypePicker];
}
else {
originatorTypePicker.hidden = YES;
[originatorTypePicker removeFromSuperview];
}
if ( categoryTypePicker.hidden) {
categoryTypePicker.hidden = YES;
[self.view addSubview:categoryTypePicker];
}
else {
categoryTypePicker.hidden = YES;
[categoryTypePicker removeFromSuperview];
}
if ( statusTypePicker.hidden) {
statusTypePicker.hidden = YES;
[self.view addSubview:statusTypePicker];
}
else {
statusTypePicker.hidden = YES;
[statusTypePicker removeFromSuperview];
}
}
-(IBAction) showStatusTypePicker{
if ( statusTypePicker.hidden) {
statusTypePicker.hidden = NO;
[self.view addSubview:statusTypePicker];
}
else {
statusTypePicker.hidden = NO;
[statusTypePicker removeFromSuperview];
}
if ( locationTypePicker.hidden) {
locationTypePicker.hidden = YES;
[self.view addSubview:locationTypePicker];
}
else {
locationTypePicker.hidden = YES;
[locationTypePicker removeFromSuperview];
}
if ( originatorTypePicker.hidden) {
originatorTypePicker.hidden = YES;
[self.view addSubview:originatorTypePicker];
}
else {
originatorTypePicker.hidden = YES;
[originatorTypePicker removeFromSuperview];
}
if ( destinationTypePicker.hidden) {
destinationTypePicker.hidden = YES;
[self.view addSubview:destinationTypePicker];
}
else {
destinationTypePicker.hidden = YES;
[destinationTypePicker removeFromSuperview];
}
if ( categoryTypePicker.hidden) {
categoryTypePicker.hidden = YES;
[self.view addSubview:categoryTypePicker];
}
else {
categoryTypePicker.hidden = YES;
[categoryTypePicker removeFromSuperview];
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSUInteger)supportedInterfaceOrientations {
return UIInterfaceOrientationMaskPortrait;
}
#pragma - getting info from the UI
//NSString *test = nil;
- (IBAction)checkData:(id)sender
{
/*
name = nameTextField.text;
surname = surnameTextField.text;
bornDate = bornDateTextField.text;
address = addressTextField.text;
zipCode = zipTextField.text;
email = emailTextField.text;
*/
//NSLog(#" Name: %# \n Surname: %# \n Date of Birth: %# \n Address: %# \n Post Code: %# \n email: %# \n", name, surname, bornDate, address, zipCode, email);
unsigned int x,a = 0;
NSMutableString *emailmessage; //stringa variabile
emailmessage = [NSMutableString stringWithFormat: #""]; //le stringhe mutabili vanno inizializzate in questo modo!
for (x=0; x<7; x++)
{
switch (x) {
case 0:
if (nameTextField.text == nil) {
[emailmessage appendString:#"Name, "];
a=1;
}
break;
case 1:
if (emailTextField.text == nil)
{
[emailmessage appendString:#"Email Address, "];
a=1;
}
break;
case 2:
if (dateTextField.text == nil)
{
[emailmessage appendString:#"Date of Near Miss, "];
a=1;
}
break;
case 3:
if (timeTextField.text == nil)
{
[emailmessage appendString:#"Time of Near Miss, "];
a=1;
}
break;
case 4:
if (blankTextField.text == nil)
{
[emailmessage appendString:#"Post Code, "];
a=1;
}
break;
case 5:
if (blankbTextField.text == nil)
{
[emailmessage appendString:#"Email, "];
a=1;
}
break;
case 6:
if (mlabelcategory.text == nil)
{
[emailmessage appendString:#"Category, "];
a=1;
}
break;
case 7:
if (messageTextView.text == nil)
{
[emailmessage appendString:#"Observation Description, "];
a=1;
}
break;
default:
break;
}
}
NSLog (#"Email Message: %#", emailmessage);
if (a == 1) {
NSMutableString *popupError;
popupError = [NSMutableString stringWithFormat: #"Per inviare compilare i seguenti campi: "];
[popupError appendString:emailmessage]; //aggiungo i miei errori
[popupError appendString: #" grazie della comprensione."]; //
NSLog(#"%#", popupError);
UIAlertView *chiamataEffettuata = [[UIAlertView alloc]
initWithTitle:#"ATTENTION" //titolo del mio foglio
message:popupError
delegate:self
cancelButtonTitle:#"Ok, correggo" //bottone con cui si chiude il messaggio
otherButtonTitles:nil, nil];
[chiamataEffettuata show]; //istanza per mostrare effettivamente il messaggio
}
else
{
name = nameTextField.text;
emailaddress = emailTextField.text;
date = dateTextField.text;
time = timeTextField.text;
blank = blankTextField.text;
blankb = blankbTextField.text;
category = mlabelcategory.text;
message = messageTextView.text;
NSMutableString *nearmissreport;
nearmissreport = [NSMutableString stringWithFormat: #"<br><br> <b>Name:</b> %# <br> <b>Email Address:</b> %# <br> <b>Date of Near Miss:</b> %# <br> <b>Time of Near Miss:</b> %# <br> <b>Post Code:</b> %# <br> <b>Email Address:</b> %# <br> <b>Category:</b> %# <br><b>Observation Description:</b> %# <br>", name, emailaddress, date, time, blank, blankb, category, message];
NSLog(#"Near Miss Report: %#", nearmissreport);
NSMutableString *testoMail;
testoMail = [NSMutableString stringWithFormat: nearmissreport];
NSLog(#"%#", testoMail);
//MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject: name];
// Set up the recipients.
NSArray *toRecipients = [NSArray arrayWithObjects:#"paul.haddell#bbmmjv.com",nil];
//NSArray *ccRecipients = [NSArray arrayWithObjects:#"second#example.com",#"third#example.com", nil];
//NSArray *bccRecipients = [NSArray arrayWithObjects:#"four#example.com",nil];
[picker setToRecipients:toRecipients];
//[picker setCcRecipients:ccRecipients];
//[picker setBccRecipients:bccRecipients];
// Attach an image to the email.
//NSString *path = [[NSBundle mainBundle] pathForResource:#"ipodnano" ofType:#"png"];
//NSData *myData = [NSData dataWithContentsOfFile:path];
//[picker addAttachmentData:myData mimeType:#"image/png" fileName:#"ipodnano"];
// Fill out the email body text.
//NSMutableString *emailBody;
testoMail = [NSMutableString stringWithFormat: #"%#", testoMail];
[picker setMessageBody:testoMail isHTML:YES]; //HTML!!!!!!
// Present the mail composition interface.
[self presentViewController:picker animated:YES completion:nil];
}
}
// The mail compose view controller delegate method
- (void)mailComposeController:(MFMailComposeViewController *)controller
didFinishWithResult:(MFMailComposeResult)result
error:(NSError *)error
{
[self dismissModalViewControllerAnimated:YES];
}
#pragma mark - Mandare email
/*
- (void)sendMail:(NSMutableString*)testoMail{
MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
picker.mailComposeDelegate = self;
[picker setSubject:#"Reclutamento pompieri"];
// Set up the recipients.
NSArray *toRecipients = [NSArray arrayWithObjects:#"reda.bousbah#gmail.com",nil];
//NSArray *ccRecipients = [NSArray arrayWithObjects:#"second#example.com",#"third#example.com", nil];
//NSArray *bccRecipients = [NSArray arrayWithObjects:#"four#example.com",nil];
[picker setToRecipients:toRecipients];
//[picker setCcRecipients:ccRecipients];
//[picker setBccRecipients:bccRecipients];
// Attach an image to the email.
//NSString *path = [[NSBundle mainBundle] pathForResource:#"ipodnano" ofType:#"png"];
//NSData *myData = [NSData dataWithContentsOfFile:path];
//[picker addAttachmentData:myData mimeType:#"image/png" fileName:#"ipodnano"];
// Fill out the email body text.
NSString *emailBody = #"It is raining in sunny California!";
[picker setMessageBody:emailBody isHTML:NO];
// Present the mail composition interface.
[self presentViewController:picker animated:YES completion:nil];
}
*/
#pragma mark - methods to control the keyboard
- (IBAction)backgroundTap:(id)sender //method for resign the keyboard when the background is tapped
{
[nameTextField resignFirstResponder];
[emailTextField resignFirstResponder];
[dateTextField resignFirstResponder];
[timeTextField resignFirstResponder];
[blankTextField resignFirstResponder];
[blankbTextField resignFirstResponder];
[mlabelcategory resignFirstResponder];
[messageTextView resignFirstResponder];
}
- (IBAction)doneButtonPressed:(id)sender
{
NSLog( #"done button pressed");
[sender resignFirstResponder];
}

Answer 1

This happens because in case you tag property doesn't fall into any of the cases, it goes to the default block which in turn won't return anything.
You need to return a default value (nil,0) in the default block:
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
NSInteger numberOfRows = 0;
switch (pickerView.tag) {
case kCATEGORYTYPEPICKERTAG: {
numberOfRows = [categoryTypes count];
break;
}
case kLOCATIONTYPEPICKERTAG: {
numberOfRows = [locationTypes count];
break;
}
case kORIGINATORTYPEPICKERTAG: {
numberOfRows = [originatorTypes count];
break;
}
case kDESTINATIONTYPEPICKERTAG: {
numberOfRows = [destinationTypes count];
break;
}
case kSTATUSTYPEPICKERTAG: {
numberOfRows = [statusTypes count];
break;
}
default: {
break;
}
}
return numberOfRows;
}
You'll also have to do this in the titleForRow method.
Also:
I prefer having minimal amount of returns and modifying a value
instead which I will return at the end
Enclosing cases in {}.