How to check button's color?

if([button backgroundColor]==[UIColor yellowcolor]){
    [taggedB开发者_高级运维tn setBackgroundColor:[UIColor redColor]];
}

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if([button backgroundColor]==[UIColor yellowcolor])

How can I check button's color?

Thanks for your helping

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You need to use [button.backgroundColor isEqual:[UIColor yellowColor]

If you use == you compare the pointers. With [UIColor yellowColor] you create a new instance. And that one won't be the same as the backgroundColor of your button. ;-)

Sandro Meier

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Use the CGColor property of UIColor:

if (CGColorEqualToColor([button backgroundColor].CGColor, [UIColor yellowcolor].CGColor) {

Have a look here.