我有一个文本字段，我想在密码隐藏时将默认点字符替换为其他字符.有什么方法可以轻松做到这一点?

I have a Text Field and I would like to replace the default dot character to something else when the password is hidden. Is there any way to do this easily?

推荐答案

这里有2个选项:

这是代码(将密码显示为 $$$$):

Here's the code (will show the password as $$$$):

var password: String = ""
func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool
{
    password = password+string
    textField.text = textField.text+"$"
    println("(password)")
    return false
}