Question

I have a NSURL member in my view controller. Based on user input like which button user pressed I have to dynamically get the url string and create a NSURL object.

Currently each time I am creating one NSURL object. I know this is a memory leak. Is there any way where I can change the url string value of NSRUL member without deleting its memory?

I can’t release NSURL member as the project is under @autoreleasepool.

---

Code snippet:

@interface myViewController : UIViewController <MyWebViewDelegate>
{
     NSURL* NavigationURL;

         ...
}

@implementation myViewController

...

-(IBAction) LoadURL
{
    if (self.NavigationURL)
    {
        NSURLRequest *Request = [NSURLRequest requestWithURL:NavigationURL cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
        [WebView loadRequest:Request];
    }
}


- (IBAction)onHomeClick:(UIButton *)sender 
{ 
    switch (sender.tag) 
    {
        case 101: 
            {
                self.NavigationURL = [[NSURL alloc] initWithString:@"https://zzzqmsdb.xxxxyyyy.com/sites/pex/iPadFiles/CommAndCoord.pdf"];        
                [self LoadURL];
            }
            break;

        case 102: 
            {
                [self stopResourcesIfAlreadyLoading];

                self.NavigationURL = [[NSURL alloc] initWithString:@"https://zzzqmsdb.xxxxyyyy.com/sites/pex/iPadFiles/PartCulture.pdf"];        

                [self LoadURL];
            }
            break;
}
@end

Answer 1

you can use [NSUrl URLWithString:] method instead of allocating it everytime.

just like this

self.NavigationURL = [NSURL URLWithString:@"https://zzzqmsdb.xxxxyyyy.com/sites/pex/iPadFiles/PartCulture.pdf"];