将 NSNumber 从一种方法传递到另一种方法

Question

I'll just show the example it's easier than words.

.h file

@interface Something : UITableViewController <UIAlertViewDelegate, GADBannerViewDelegate>
{
    NSNumber *myNumber;
}

.m file

-(void) someMethod1
{
NSLog @("is it reaching here? %@", myNumber);
/// returns Null

}

-(void) someMethod2
{

FixturesObject *closestObject;
NSTimeInterval closestInterval = DBL_MAX; 
for (FixturesObject *myObject in newFixtureObjectArray) {
   if (myObject != nullValue) {
    NSTimeInterval interval = ABS([myObject.date2 timeIntervalSinceDate:[NSDate date]]);
    if (interval < closestInterval) {
        closestInterval = interval;
        closestObject = myObject;
    }
    }
        roundFinder = closestObject.round;
        NSNumberFormatter * f = [[NSNumberFormatter alloc] init];
        [f setNumberStyle:NSNumberFormatterNoStyle];
        myNumber = [f numberFromString:roundFinder];
}
NSLog(@"What is my number? %@", myNumber); 
// this returns like.. 26

}

How do i pass the value from the method below to another method? It's not working for me at all.

Thank you for your time.

Answer 1

myNumber is part of the same object where you have the methods. You don't need to pass it anywhere. You just need to create a property setter/getter.

Answer 2

The method you are sending the number has to be able to accept the number as parameter, something like this:

-(void) someMethod1:(NSNumber*)number{

    if (number) NSLog @("is it reaching here? %@", myNumber);
    /// returns Null

    }

But in this case, have a look at what @Black Frog told you. You don't really need to pass this one as it is "all around".