Declare an NSString With Format Specifiers and use it as a URL to open in UIWebview

I have an int containing a number. I am wanting to declare an NSString so I can use use format specifiers when assigning a value to it.

I thought it might be something like this:

NSString[NSString stringWithFormat] myString;

myString = [@"http://myurl.com/%d",myInt];

I gather this is not the case, so question one is: How do I declare an NSString that can handle format specifiers and then assign it a value using format specifiers? The purpose of this NSString is to hold a URL, exactly like the second line above.

Question two is, How do I then use this string as a URL to open in a UIWebView? I assume I use something like this:

[webView loadRequest:

Sadly, this is as far as my knowledge stretches. Is there a way I can tell my UIWebView (webView above) to use the NSString with the URL I mentioned earlier?

I intend on havin开发者_开发技巧g the NSString as a global variable, as it will be assigned it's value inside a C function. And 'webView' will use it inside a (what I think is a) method. All of this code is in the same file, the Delegate.m file. It is all executed on launch of the application.

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Your string should look like this:

NSString *myString = [NSString stringWithFormat:@"http://myurl.com/%d", myInt];

What you missed: adding the * to indicate a pointer, and thinking that you had to/could first state that the string would have a format and then later state the format. It all happens at once, creating the string with the specified format.

Edited to add NSURL

To create a url you're creating an object of class NSURL, like this:

NSURL *myURL = [[NSURL alloc] initWithString:myString];

And then you create the url request:

NSURLRequest *request = [NSURLRequest requestWithURL:myURL];

And finally, tell your webView to load the request:

[webView loadRequest:request];

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For your first part:

NSString *myString = [NSString stringWithFormat:@"http://myurl.com/%d", myInt];

Then, based on a tutorial from iphonesdkarticles.com:

//Create a URL object.
NSURL *url = [NSURL URLWithString:myString];

//URL Request Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];

//Load the request in the UIWebView.
[webView loadRequest:requestObj];