Fixes #5 and Fixes #4

EMAlertController.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'EMAlertController'
-  s.version          = '1.0.0'
+  s.version          = '1.0.1'
   s.summary          = 'Elegant alert view controller alternative for iOS'
 
   s.description      = <<-DESC

EMAlertController/EMAlertController/EMAlertController.swift

@@ -15,6 +15,7 @@ enum Dimension {
   }
   static let padding: CGFloat = 15.0
   static let buttonHeight: CGFloat = 50.0
+  static let iconHeight: CGFloat = 100.0
 }
 
 open class EMAlertController: UIViewController {
@@ -24,8 +25,9 @@ open class EMAlertController: UIViewController {
   internal var buttonStackViewHeightConstraint: NSLayoutConstraint?
   internal var buttonStackViewWidthConstraint: NSLayoutConstraint?
   internal var scrollViewHeightConstraint: NSLayoutConstraint?
-  internal var imageViewHeight: CGFloat = 100
+  internal var imageViewHeight: CGFloat = Dimension.iconHeight
   internal var messageLabelHeight: CGFloat = 20
+  internal var iconHeightConstraint: NSLayoutConstraint?
 
   internal lazy var backgroundView: UIView = {
     let bgView = UIView()
@@ -107,6 +109,13 @@ open class EMAlertController: UIViewController {
     }
     set {
       imageView.image = newValue
+      guard let image = newValue else {
+        imageViewHeight = 0
+        iconHeightConstraint?.constant = imageViewHeight
+        return
+      }
+      (image.size.height > CGFloat(0.0)) ? (imageViewHeight = Dimension.iconHeight) : (imageViewHeight = 0)
+      iconHeightConstraint?.constant = imageViewHeight
     }
   }
 
@@ -140,6 +149,7 @@ open class EMAlertController: UIViewController {
     }
   }
 
+  /// Alert background color
   public var backgroundColor: UIColor? {
     willSet {
       alertView.backgroundColor = newValue
@@ -158,6 +168,13 @@ open class EMAlertController: UIViewController {
     }
   }
 
+  /// Spacing between actions when presenting two actions in horizontal
+  public var buttonSpacing: CGFloat = 15 {
+    willSet {
+      buttonStackView.spacing = newValue
+    }
+  }
+
   // MARK: - Initializers
   required public init?(coder aDecoder: NSCoder) {
     super.init(coder: aDecoder)
@@ -243,7 +260,8 @@ extension EMAlertController {
     imageView.topAnchor.constraint(equalTo: alertView.topAnchor, constant: 5).isActive = true
     imageView.leadingAnchor.constraint(equalTo: alertView.leadingAnchor, constant: Dimension.padding).isActive = true
     imageView.trailingAnchor.constraint(equalTo: alertView.trailingAnchor, constant: -Dimension.padding).isActive = true
-    imageView.heightAnchor.constraint(equalToConstant: imageViewHeight).isActive = true
+    iconHeightConstraint = imageView.heightAnchor.constraint(equalToConstant: imageViewHeight)
+    iconHeightConstraint?.isActive = true
 
     // titleLabel Constraints
     titleLabel.topAnchor.constraint(equalTo: imageView.bottomAnchor, constant: 8).isActive = true

Readme.md

@@ -165,6 +165,12 @@ action.actionBackgroundColor = UIColor.red
 // Default color = UIColor.clear
 ```
 
+### Button Spacing (Only when two buttons are displayed in horizontal)
+```swift
+alert.buttonSpacing = 0
+// Default spacing = 15
+```
+
 ## TODO
 * [ ] Textfield Support
 * [ ] Carthage Support