Disabled UIButton not faded or grey

Question

You can use following code:

sendButton.enabled = YES;
sendButton.alpha = 1.0;

or

sendButton.enabled = NO;
sendButton.alpha = 0.5;

just change state config to disable and choose what you want, background Image for disabled state

Another option is to change the text color (to light gray for example) for the disabled state.

In the storyboard editor, choose Disabled from the State Config popup button. Use the Text Color popup button to change the text color.

In code, use the -setTitleColor:forState: message.

To make the button is faded when disable, you can set alpha for it. There are two options for you:

First way: If you want to apply for all your buttons in your app, so you can write extension for UIButton like this:

extension UIButton {

    open override var isEnabled: Bool{
        didSet {
            alpha = isEnabled ? 1.0 : 0.5
        }
    }

}

Second way: If you just want to apply for some buttons in your app, so you can write a custom class from UIButton like below and use this class for which you want to apply:

class MyButton: UIButton {
    override var isEnabled: Bool {
        didSet {
            alpha = isEnabled ? 1.0 : 0.5
        }
    }
}

Try to set the different images for UIControlStateDisabled (disabled gray image) and UIControlStateNormal(Normal image) so the button generate the disabled state for you.