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iOS App Basic 2

iOS App Basics 2


Here is the second post for some functions for basic code makes easy.

Create the one Extension file for few basic feature like below:

-> Create Extension.swift file in App Basic folder.

1. This extension is used to add max length of TextField entry.


extension UITextField {
    @IBInspectable var maxLength: Int
        {
        
        get {
            guard let length = maxLengths[self] else {
                return Int.max
            }
            return length
        }
        set {
            maxLengths[self] = newValue
            
            addTarget(self, action: #selector(limitLength), for: .editingChanged)
        }
    }
    
    @objc func limitLength(textField:UITextField){
        guard let prospectiveText = textField.text , prospectiveText.count > maxLength
            
            else
        {
            return
        }
        
        let selection = selectedTextRange
        
        let index = prospectiveText.index(prospectiveText.startIndex, offsetBy: maxLength)
        
        text = prospectiveText.substring(to: index)
        
        selectedTextRange = selection
    }
}



extension UIView {
    
//It is to use to add shadow to any UIView using storyboard
    @IBInspectable var shadow:Bool {
        set {
            if newValue {
                layer.shadowColor = UIColor.black.cgColor
                layer.shadowOffset = CGSize(width: 0.0, height: 2.0)
                layer.shadowRadius = 2.0
                layer.shadowOpacity = 0.3
                layer.masksToBounds = false
            }
        }
        get {
            if layer.shadowColor != nil {
                return true
            }
            else {
                return false
            }
        }
    }
    //It is to use to add border to any UIView
   func setBoder(color: UIColor, width: CGFloat = 1) {
        self.layer.borderColor = color.cgColor
        self.layer.borderWidth = width
    }

    //It is to use to add Corner Radius to any UIView
    func setCornerRadius(radius: CGFloat) {
        self.layer.cornerRadius = radius
        self.clipsToBounds = true
    }
    //It is to use to add shadow to any UIView programmatically
    func setShadow() {
        self.layer.shadowOpacity = 0.65
        self.layer.shadowOffset = CGSize(width: 0, height: 5)
        self.layer.shadowColor = UIColor.black.cgColor
        self.layer.shadowRadius = 8
        self.layer.masksToBounds = false
    }
//It is to use to add border color to any UIView using storyboard    
    @IBInspectable var borderColor:UIColor? {
        set {
            layer.borderColor = newValue!.cgColor
        }
        get {
            if let color = layer.borderColor {
                return UIColor(cgColor:color)
            }
            else {
                return nil
            }
        }
    }

//It is to use to add border Width to any UIView using storyboard        
    @IBInspectable var borderWidth:CGFloat {
        set {
            layer.borderWidth = newValue
        }
        get {
            return layer.borderWidth
        }
    }
    
//It is to use to add corner radius to any UIView using storyboard        
    @IBInspectable var cornerRadius:CGFloat {
        set {
            layer.cornerRadius = newValue
            clipsToBounds = newValue > 0
        }
        get {
            return layer.cornerRadius
        }
    }
}

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