toast message in ios swift 5 code example
Example: swift alert toast
@IBOutlet weak var txtPassword: UITextField!
@IBOutlet weak var txtUserName: UITextField!
@IBAction func btnLoginPressed(_ sender: UIButton) {
if txtUserName.text == ""
{
self.view.showToast(toastMessage: "Please Enter Username,beacuse it is necessary to add For getting logged in.", duration: 1.1)
}
else if txtPassword.text == ""
{
self.view.showToast(toastMessage: "Please Enter Password.", duration: 1.1)
}
else
{
}
}
import UIKit
extension UIView
{
func showToast(toastMessage:String,duration:CGFloat)
{
let bgView = UIView(frame: self.frame)
bgView.backgroundColor = UIColor(red: CGFloat(255.0/255.0), green: CGFloat(255.0/255.0), blue: CGFloat(255.0/255.0), alpha: CGFloat(0.6))
bgView.tag = 555
let lblMessage = UILabel()
lblMessage.numberOfLines = 0
lblMessage.lineBreakMode = .byWordWrapping
lblMessage.textColor = .white
lblMessage.backgroundColor = .black
lblMessage.textAlignment = .center
lblMessage.font = UIFont.init(name: "Helvetica Neue", size: 17)
lblMessage.text = toastMessage
let maxSizeTitle : CGSize = CGSize(width: self.bounds.size.width-16, height: self.bounds.size.height)
var expectedSizeTitle : CGSize = lblMessage.sizeThatFits(maxSizeTitle)
expectedSizeTitle = CGSize(width:maxSizeTitle.width.getminimum(value2:expectedSizeTitle.width), height: maxSizeTitle.height.getminimum(value2:expectedSizeTitle.height))
lblMessage.frame = CGRect(x:((self.bounds.size.width)/2) - ((expectedSizeTitle.width+16)/2) , y: (self.bounds.size.height/2) - ((expectedSizeTitle.height+16)/2), width: expectedSizeTitle.width+16, height: expectedSizeTitle.height+16)
lblMessage.layer.cornerRadius = 8
lblMessage.layer.masksToBounds = true
lblMessage.padding = UIEdgeInsets(top: 4, left: 4, bottom: 4, right: 4)
bgView.addSubview(lblMessage)
self.addSubview(bgView)
lblMessage.alpha = 0
UIView.animateKeyframes(withDuration:TimeInterval(duration) , delay: 0, options: [] , animations: {
lblMessage.alpha = 1
}, completion: {
sucess in
UIView.animate(withDuration:TimeInterval(duration), delay: 8, options: [] , animations: {
lblMessage.alpha = 0
bgView.alpha = 0
})
bgView.removeFromSuperview()
})
}
}
extension CGFloat
{
func getminimum(value2:CGFloat)->CGFloat
{
if self < value2
{
return self
}
else
{
return value2
}
}
}
extension UILabel
{
private struct AssociatedKeys {
static var padding = UIEdgeInsets()
}
var padding: UIEdgeInsets? {
get {
return objc_getAssociatedObject(self, &AssociatedKeys.padding) as? UIEdgeInsets
}
set {
if let newValue = newValue {
objc_setAssociatedObject(self, &AssociatedKeys.padding, newValue as UIEdgeInsets?, objc_AssociationPolicy.OBJC_ASSOCIATION_RETAIN_NONATOMIC)
}
}
}
override open func draw(_ rect: CGRect) {
if let insets = padding {
self.drawText(in: rect.inset(by: insets))
} else {
self.drawText(in: rect)
}
}
override open var intrinsicContentSize: CGSize {
get {
var contentSize = super.intrinsicContentSize
if let insets = padding {
contentSize.height += insets.top + insets.bottom
contentSize.width += insets.left + insets.right
}
return contentSize
}
}
}