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uiswitch setthumbtintcolor causing crash ios 6 only using -'iphone,ios,uicolor,uiswitch,uiappearance'

uiswitch setthumbtintcolor causing crash ios 6 only  using -'iphone,ios,uicolor,uiswitch,uiappearance'

UPDATE: Got a mail from Apple saying that the bug/issue has been fixed now and the next SDK release won't have this issue. Peace!

I have this in the code for my AppDelegate:

- (void) customizeAppearance {
    [[UISwitch appearance] setOnTintColor:[UIColor colorWithRed:0 green:175.0/255.0 blue:176.0/255.0 alpha:1.0]];
    [[UISwitch appearance] setTintColor:[UIColor colorWithRed:255.0f/255.0f green:255.0f/255.0f blue:255.0f/255.0f alpha:1.000f]];
    [[UISwitch appearance] setThumbTintColor:[UIColor colorWithRed:0.9 green:0.9 blue:0.9 alpha:1.0]];

Which I then call from - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

I also use ARC. In iOS 6 my app keeps crashing. I enabled NSZombie and it keeps saying: *** -[UIDeviceRGBColor release]: message sent to deallocated instance 0x9658eb0

And now I've realized one perfectly reproducible flow for the above. When I comment out the setThumbTintColor line alone inside customizeAppearance, then everything works fine as it should. When I use the setThumbTintColor line instead, the app crashes the exact same way every time.

Is this a known issue to anyone with UISwitch/setThumbTintColor/UIColor? What else could be the cause if not the switch color?

asked Sep 7, 2015 by rajesh
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