Question

When setting the image for a button, I use stringWithFormat: like so:

 [buttonImage setImage:[ImgUtil image:[NSString stringWithFormat:@"myImage_%d.png", selectNum + 1 ]] ];

I want to inspect that string. I thought maybe I could get the name back from the button:

 if (buttonImage.image == [UIImage imageNamed:@"myImage_2.png"]) {
        NSLog(@"the name of the buttonImage is %@", buttonImage.image);
 }

but that doesn’t work. How can I look at that string?

Answer 1

If what you want is to “test what the “myImage_%d.png” ends up being” in the following line:

[buttonImage setImage:[ImgUtil image:[NSString stringWithFormat:@"myImage_%d.png", selectNum + 1 ]] ];

Then I would suggest that you reformat and simplify your code. It will give you the additional advantage of making it easier to read:

NSString* imageName = [NSString stringWithFormat:@"myImage_%d.png", selectNum + 1 ];
NSLog(@"imageName is %@", imageName);

[buttonImage setImage:[ImgUtil image:imageName]];