UIImage not displayed

Question

I am using iOS 7 SDK and Xcode 5. I want to set icons on UITabBarItem. I am using below method.

setFinishedSelectedImage: withFinishedUnselectedImage:

It was working till now. But suddenly it stopped displaying images.

I tried below various options :

[img imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

[tabBarItem setSelectedImage:img];
[tabBarItem setImage:img];

[[UITabBarItem alloc] initWithTitle:title image:img selectedImage:img];

None of them is working. Here, img is the image downloaded from URL.

Then I tried with one of the images in app resource and it was displaying.

After that, I tried using temporary UIImageView with background color to red and set img to this UIImageView, it displayed red color instead of img.

But strange part is that I use the same img in other view controllers where it is displayed correctly.

Any idea how to solve this issue?

Is it not displaying any image at all, or your image looks like a white square. In my case, my tab bar was used to display me a white square for icons which didn't fit the sizes of this link : https://developer.apple.com/library/ios/documentation/userexperience/conceptual/mobilehig/IconMatrix.html — zbMax, Jan 17 '14 at 08:03
@zbMax I download image and use in many other screens before reaching this screen. Basically these are profile pictures of user's facebook/google plus accounts. As it works in other screens I don't think there is any problem with downloading. — Geek, Jan 17 '14 at 08:08
Geek can you please reset simulator and restart Xcode may be solve your problem also clean cmd+shift+k — Nimit Parekh, Jan 17 '14 at 11:10

score 0 · Accepted Answer · answered Jan 17 '14 at 12:41

It was my mistake in code. I had to initialze img to some UIImage on declaration. Below is shown what was the issue.

UIImage * img;  // Image not initialized

// This condition was not satisfied and hence `img` was not storing any time.
if (condition)
{
    img = ...;
}

// Below condition should have been satisfied if `img` was not initialized.
// But it did not. I am not getting why.
if (!img)
{
    NSLog(@"Image is nil");
}

[tabBarItem setImage:img];

UIImage not displayed

1 Answers1