UITextField placeholder 改变默认字体颜色

这么基础的东西居然还要找好一会，做个记录：

继承UITextField

class GsTextField: UITextField {

}

override func drawPlaceholderInRect(rect: CGRect) {
if let placeholders = placeholder{
self.attributedPlaceholder =
NSAttributedString(string: placeholders,
attributes: [NSForegroundColorAttributeName:UIColor.whiteColor()])
}
super.drawPlaceholderInRect(rect)
}

或者在外面调用直接写

self.mTextField.attributedPlaceholder =NSAttributedString(string: placeholders, attributes: [NSForegroundColorAttributeName:UIColor.whiteColor()])