Pulling values from a picker and converting to an int - iphone

Question

I am trying to make a calculating app that consists of a 2-column picker. The left side of the picker are data values and the data values are being pulled from a plist with the price of each item. The other side of the picker is a string going from 1 to 64.
I'm trying to figure out how to take the string values of both parts of the picker and convert them into an int (so they can be multiplied and printed out)
Here's my code (in its entirety)
#pragma mark - View lifecycle
- (void)viewDidLoad
{
NSBundle *bundle = [NSBundle mainBundle];
NSString *plistPath =[bundle pathForResource:#"worthList" ofType:#"plist"];
NSDictionary *dictionary = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
self.dataValues = dictionary;
[dictionary release];
NSArray *components = [self.dataValues allKeys];
NSArray *sorted = [components sortedArrayUsingSelector:#selector(compare:)];
self.values = sorted;
NSMutableArray *number =[[NSMutableArray alloc] init];
for(int x = 1; x < 65; x++)
{
NSString * numberString = [[NSString alloc] initWithFormat:#"%d",x];
[number addObject:numberString];
}
self.quantity = number;
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
- (void)viewDidUnload
{
self.doublePicker = nil;
self.dataValues = nil;
self.values = nil;
self.quantity = nil;
[self setDoublePicker:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (IBAction)calculateItem:(id)sender
{
NSString *message = [[NSString alloc] initWithFormat:#""];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Thank you" message:message delegate:nil cancelButtonTitle:#"Okay" otherButtonTitles: nil];
[alert show];
[alert release];
[message release];
}
#pragma mark -
#pragma Picker data source methods
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 2;
}
-(NSInteger)pickerView:(UIPickerView *) pickerView numberOfRowsInComponent:(NSInteger)component
{
if (component == kValueComponent)
{
return [self.values count];
}
return [self.quantity count];
}
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent: (NSInteger)component
{
if (component == kValueComponent)
{
return [self.values objectAtIndex:row];
}
return [self.quantity objectAtIndex:row];
}
#end

Answer 1

Try this to convert your data string into an int and then do the calculation:
int = [yourString intValue];

Answer 2

Try this:
NSString *str=[NSString stringWithFormat:#"%#",[pickerArr objectAtIndex:row]];
int test=[str intValue];

Answer 3

HERE MINUTES AND SECONDS ARE ARRAY.
Delegate method of a picker.
You can use other delegate methods also.
Seconds and minutes are the array which loads the picker in your case use array which is feeded with plist.
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
switch (component) {
case 0:
minuteTime =[minutes objectAtIndex:row] intValue];
break;
case 1:
secondTime = [[seconds objectAtIndex:row] intValue];
break;
}
}
You can also use this method to distinguish strings further.
NSArray *greenTime = [yourstring componentsSeparatedByString:#":"];
NSLog(#"Green Time : %#\nFirst : %#\nSecond : %#",greenTime,[greenTime objectAtIndex:0],[greenTime objectAtIndex:1]);