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copied!<p>For future reference, here's my somewhat hasty solution for animating tint. I'm sure there are more clever ways of doing this with categories and a struct for the rgb values yadda yadda. I was in a hurry, OK?!</p> <p><strong>UITabBarController subclass:</strong></p> <pre><code>@interface BaseNavigationController : UINavigationController { NSTimer * tintTimer; UIColor * targetColor; } -(void)changeTintTo:(UIColor*)color; -(void)animateTint; </code></pre> <p>.</p> <pre><code>-(void)changeTintTo:(UIColor*)color; { targetColor = [color retain]; [tintTimer invalidate]; tintTimer = [NSTimer scheduledTimerWithTimeInterval:1.0/30.0 target:self selector:@selector(animateTint) userInfo:nil repeats:YES]; } -(void)animateTint; { UIColor * currentColor = self.navigationBar.tintColor; CGFloat red, green, blue, alpha; [currentColor getRed:&red green:&green blue:&blue alpha:&alpha]; CGFloat targetRed, targetGreen, targetBlue, targetAlpha; [targetColor getRed:&targetRed green:&targetGreen blue:&targetBlue alpha:&targetAlpha]; CGFloat newRed = red + ((targetRed - red)*.2); UIColor * newColor = [UIColor colorWithRed:newRed green:green + ((targetGreen - green)*.2) blue:blue + ((targetBlue - blue)*.2) // the .2 adjusts the fade speed alpha:1.0]; if( (newRed < targetRed && newRed >= targetRed-0.01) || (newRed > targetRed && newRed <= targetRed+0.01) ) { newColor = targetColor; [targetColor autorelease]; [tintTimer invalidate]; tintTimer = nil; targetColor = nil; } self.navigationBar.tintColor = newColor; } </code></pre>

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