ios - Changing color of text on send button in disabled state on MFMailComposeViewController -


i want change send button text color when in disabled state.

enter image description here

here code -

if mfmailcomposeviewcontroller.cansendmail() {     let mail = mfmailcomposeviewcontroller()     mail.navigationbar.tintcolor = uicolor.red     mail.mailcomposedelegate = self     present(mail, animated: true) } else {     // show failure alert }


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