How to convert an NSString into an int

Question

I want to compare 2 numbers.

The user has to enter a code(here 1) in and Textfield in an ViewController.
The entered number will be compared with each other if it matches the app should switch to an other tab that is defined in each code.

and this is what i got so far

int a,b,c,zz;
a=1;
b=2;
c=3;

- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if (sender != self.done) 
      return;
    if (self.zahlencode.text.length > 0)
    {
       zz =self.zahlencode.text;
       if(zz == a)
       {
         zweiViewController *source = [segue sourceViewController];
       }
    }
}

score 1 · Accepted Answer · answered Mar 18 '14 at 07:30

you can call intValue on your string:

NSString * intString = @"122";

int myInt = [intString intValue];

If from a textField:

int textFieldInt = [yourTextField.text intValue];

You can also use this for other types of value, like:

CGFloat textFieldFloat = [yourTextField.text floatValue];
double textFieldDouble = [yourTextField.text doubleValue];
// etc ...

score 0 · Answer 2 · answered Mar 18 '14 at 07:36

0

Use like this

int myInt = [someString integerValue];

answered Mar 18 '14 at 07:36

Gajendra Rawat

3,673
2
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score 0 · Answer 3 · answered Mar 18 '14 at 07:39

int a,b,c,zz;
a=1;
b=2;
c=3;

- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if (sender != self.done) 
      return;
    if (self.zahlencode.text.length > 0)
    {
       zz =[self.zahlencode.text intValue];
       if(zz == a)
       {
         zweiViewController *source = [segue sourceViewController];
       }
    }
}

How to convert an NSString into an int

3 Answers3