突出显示iOS 7时，为UIButton设置标题颜色

Question

I have the following code in a viewController, all the outlets and action are hooked up correctly. the WHITE and PURPLE are UIColors that I've defined constants for. I've also set the UIWindow 's tintColor to PURPLE and that propagates down to the button.

- (void)viewDidLoad {
    [super viewDidLoad];
    [button setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
    button.backgroundColor = WHITE;
    button.layer.borderWidth = 1.0;
    button.layer.masksToBounds = YES;
    button.layer.cornerRadius = 5.0;
    button.layer.borderColor = PURPLE.CGColor;
}

-(IBAction) buttonTouchDown:(id)sender {
    button.backgroundColor = PURPLE;
    button.layer.borderColor = WHITE.CGColor;
}

-(IBAction) buttonTouchUpOutside:(id)sender {
    button.backgroundColor = WHITE;
    button.layer.borderColor = PURPLE.CGColor;
}

-(IBAction) buttonTouchUpInside:(id)sender {
    button.backgroundColor = WHITE;
    button.layer.borderColor = PURPLE.CGColor;
}

When I click the button the text doesn't go white like i told it to in viewDidLoad

here's some screenshots that I could've cropped better! As you can see in the highlighted state it's not white but like a white and purple mix. Will I need to use UIButtonTypeCustom ? I heard if I do that I won't get the advantages of iOS 7 doing its magic with tintColor . Not sure what's the correct way to go about this. Thanks in advance.

Answer 1

Shouldn't you be using UIControlStateSelected?

Okay, I just tried this out myself it don't want to work well.

You need to set your button style to Custom. The UIButton system style does a lot of things that you can't change. The highlighted button state defaults to its own implementation which is a lighter version if your tintcolor.

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setTitleColor:self.view.tintColor forState:UIControlStateNormal];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateSelected];

That should get you the white text background.

Answer 2

Hope this is the answer of your question or someone still finding difficulty to set title color when button selected.

[btnCustom setTitleColor:[UIColor whiteColor] forState: UIControlStateSelected];
[btnCustom setTitleColor:[UIColor redColor] forState: UIControlStateNormal];

when you want button title coloe red than make btnCustom.selected = NO and if you want button with white title color than make btnCustom.selected = YES