我有 4 个文本字段，其中 2 个是密码和确认密码。在进入登录屏幕之前，我需要检查它们是否相同或其中包含文本。这是我的代码:
func registerButtonTapped() {
var a = false
var b = false
if passwordFieldR.text! == confirmFieldR.text! {
a = true
} else {
nonMatchingPasswords.text = "Passwords Do Not Match"
}
if(passwordFieldR.text! == "" || confirmFieldR.text! == "") {
nonMatchingPasswords.text = "Password Field is empty"
} else {
b = true
}
if a == true && b == true {
func registerButtonTwo(_ sender: Any) {
self.performSegue(withIdentifier: "registertologin", sender: self)
}
}
}
应用程序崩溃并在控制台中显示此错误消息:
2017-06-19 21:29:20.926579+1200 Altitude[1655:588172] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2017-06-19 21:29:20.927965+1200 Altitude[1655:588172] [MC] Reading from public effective user settings.
2017-06-19 21:29:30.784007+1200 Altitude[1655:588172] -[Altitude.secondscreenviewcontroller registerButtonTwo:]: unrecognized selector sent to instance 0x100d085d0
2017-06-19 21:29:30.784671+1200 Altitude[1655:588172] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[Altitude.secondscreenviewcontroller registerButtonTwo:]: unrecognized selector sent to instance 0x100d085d0'
*** First throw call stack:
(0x18add2fd8 0x189834538 0x18add9ef4 0x18add6f4c 0x18acd2d2c 0x190f370ec 0x190f3706c 0x190f215e0 0x190f36950 0x190f3646c 0x190f31804 0x190f02418 0x1916fbf64 0x1916f66c0 0x1916f6aec 0x18ad81424 0x18ad80d94 0x18ad7e9a0 0x18acaed94 0x18c718074 0x190f67130 0x1000e075c 0x189cbd59c)
libc++abi.dylib: terminating with uncaught exception of type NSException
发生了什么事以及如何解决这个问题？
最佳答案
我认为这对您有用(您可以将 5 个数字更改为您希望成为密码字符最少的任何数字)
if ((passwordFieldR.text?.characters.count)! > 5) {
if passwordFieldR.text! == confirmFieldR.text! {
print("registertologin")
} else {
print("Password Does Not Match Confirm Password")
}
} else {
print("password Characters should be more Than 5")
}
关于ios - 如何制作密码确认器 swift 3，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44626962/