Add new size method to get valye by exact device screen size

AssistantKit.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'AssistantKit'
-  s.version          = '0.0.1'
+  s.version          = '0.0.2'
   s.summary          = 'Easy way to detect and work with  device environments written in Swift'
 
 # This description is used to generate tags and improve search results.

AssistantKit/Classes/Screen.swift

@@ -174,17 +174,17 @@ extension Device {
 extension Device {
 
     /// Returns size for a specific device (iPad or iPhone/iPod)
-    static public func size<T: AnyObject>(phone: T, pad: T) -> T {
+    static public func size<T: AnyObject>(phone phone: T, pad: T) -> T {
         return ( Device.isPad ? pad : phone )
     }
 
     /**
-     Return size depending on specific screen size.
+     Return size depending on specific screen family.
      If Screen size is unknown (in this case ScreenFamily will be unknown too) it will return small value
 
      - Seealso: Screen, ScreenFamily
      */
-    static public func size<T: AnyObject>(small: T, medium: T, big: T) -> T {
+    static public func size<T: AnyObject>(small small: T, medium: T, big: T) -> T {
         let family = Device.screen.family
 
         switch family {
@@ -201,4 +201,49 @@ extension Device {
             return small
         }
     }
+
+    /**
+     Return value for specific screen size. Incoming parameter should be a screen size. If it is not defined 
+     nearest value will be used. Code example:
+
+     ```
+     let sizes: [Screen:AnyObject] = [
+         .Inches_3_5: 12,
+         .Inches_4_0: 13,
+         .Inches_4_7: 14,
+         .Inches_9_7: 15
+        ]
+     let exactSize = Device.size(sizes: sizes) as! Int
+     let _ = UIFont(name: "Arial", size: CGFloat(exactSize))
+     ```
+
+     After that your font will be:
+     * 12 for 3.5" inches (older devices)
+     * 13 for iPhone 5, 5S
+     * 14 for iPhone 6, 6Plus and iPad mini
+     * and 15 for other iPads
+
+     - Seealso: Screen
+    */
+    static public func size<T: AnyObject>(sizes sizes: [Screen : T]) -> T? {
+        let screen = Device.screen
+        var nearestValue: T?
+        var distance = CGFloat.max
+
+        for (key, value) in sizes {
+            // Prevent from iterating whole array
+            if (key == screen) {
+                return value
+            }
+
+            let actualDistance = fabs(key.rawValue - screen.rawValue)
+            if actualDistance < distance {
+                nearestValue = value
+                distance = actualDistance
+            }
+        }
+
+        return nearestValue
+    }
+
 }

Example/AssistantKit.xcodeproj/project.pbxproj

@@ -496,6 +496,7 @@
 				MODULE_NAME = ExampleApp;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.cocoapods.demo.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Debug;
 		};
@@ -509,6 +510,7 @@
 				MODULE_NAME = ExampleApp;
 				PRODUCT_BUNDLE_IDENTIFIER = "org.cocoapods.demo.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				TARGETED_DEVICE_FAMILY = "1,2";
 			};
 			name = Release;
 		};

Example/AssistantKit/ViewController.swift

@@ -66,8 +66,17 @@ class ViewController: UIViewController {
         print()
 
         print("family:          " + String(Device.screen.family.rawValue))
-        print("size for device: " + String(Device.size("phone size", pad: "pad size")))
-        print("size for family: " + String(Device.size("small family", medium: "medium family", big: "big family")))
+        print("size for device: " + String(Device.size(phone: "phone size", pad: "pad size")))
+        print("size for family: " + String(Device.size(small: "small family", medium: "medium family", big: "big family")))
+
+        let sizes: [Screen:AnyObject] = [
+            .Inches_3_5: 12,
+            .Inches_4_0: 13,
+            .Inches_5_5: 14,
+            .Inches_9_7: 15
+        ]
+        let exactSize = Device.size(sizes: sizes) as! Int
+        print("exact size:      " + String(exactSize))
         print()
     }
 
@@ -86,9 +95,9 @@ class ViewController: UIViewController {
         let version = Device.osVersionString
 
         print("*** iOS")
-        print("OS:              " + String(Device.osVersion))
-        print("OS String:       " + String(Device.osVersionString))
-        print("> 9.0:           " + String(Device.osVersionGreaterThan("9.0")))
+        print("OS               " + String(Device.osVersion))
+        print("OS String        " + String(Device.osVersionString))
+        print("> 9.0            " + String(Device.osVersionGreaterThan("9.0")))
         print("< 9.0            " + String(Device.osVersionLessThan("9.0")))
         print("==               " + String(Device.osVersionEqualTo(version)))
         print(">= 9.0           " + String(Device.osVersionEqualTo("9.0")))
@@ -154,11 +163,20 @@ class ViewController: UIViewController {
         default:  print("Unknown scale")
         }
 
-        let size = Device.size(13, pad: 15)
-        let font = UIFont(name: "Arial", size: CGFloat(size))
+        let size = Device.size(phone: 13, pad: 15)
+        let _ = UIFont(name: "Arial", size: CGFloat(size))
 
-        let otherSize = Device.size(12, medium: 14, big: 15)
-        let otherFont = UIFont(name: "Arial", size: CGFloat(otherSize))
+        let otherSize = Device.size(small: 12, medium: 14, big: 15)
+        let _ = UIFont(name: "Arial", size: CGFloat(otherSize))
+
+        let sizes: [Screen:AnyObject] = [
+            .Inches_3_5: 12,
+            .Inches_4_0: 13,
+            .Inches_5_5: 14,
+            .Inches_9_7: 15
+        ]
+        let exactSize = Device.size(sizes: sizes) as! Int
+        let _ = UIFont(name: "Arial", size: CGFloat(exactSize))
     }
 }