Added an UIImage extension to use FontAwesome as image

thii · Jun 3, 2015 · 7ba3a83 · 7ba3a83
1 parent d50c2f2
commit 7ba3a83
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Showing 4 changed files with 35 additions and 2 deletions.
diff --git a/Classes/FontAwesome.swift b/Classes/FontAwesome.swift
@@ -659,3 +659,23 @@ public extension String {
     return name.rawValue.substringToIndex(advance(name.rawValue.startIndex, 1))
   }
 }
+
+public extension UIImage {
+    public static func fontAwesomeIconWithName(name: FontAwesome, textColor: UIColor, size: CGSize) -> UIImage {
+        let paragraph = NSMutableParagraphStyle()
+        paragraph.lineBreakMode = NSLineBreakMode.ByWordWrapping
+        paragraph.alignment = .Center
+        let attributedString = NSAttributedString(string: String.fontAwesomeIconWithName(name) as String, attributes: [NSFontAttributeName: UIFont.fontAwesomeOfSize(24.0), NSForegroundColorAttributeName: textColor, NSParagraphStyleAttributeName:paragraph])
+        let size = sizeOfAttributeString(attributedString, size.width)
+        UIGraphicsBeginImageContextWithOptions(size, false , 0.0)
+        attributedString.drawInRect(CGRectMake(0, 0, size.width, size.height))
+        let image = UIGraphicsGetImageFromCurrentImageContext()
+        UIGraphicsEndImageContext()
+        return image
+    }
+}
+
+func sizeOfAttributeString(str: NSAttributedString, maxWidth: CGFloat) -> CGSize {
+    let size = str.boundingRectWithSize(CGSizeMake(maxWidth, 1000), options:(NSStringDrawingOptions.UsesLineFragmentOrigin), context:nil).size
+    return size
+}
diff --git a/Demo/FontAwesome.swift/Base.lproj/Main.storyboard b/Demo/FontAwesome.swift/Base.lproj/Main.storyboard
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6751" systemVersion="14D105g" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="aRy-2i-aVc">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="7706" systemVersion="14E26a" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="aRy-2i-aVc">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6736"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="7703"/>
     </dependencies>
     <scenes>
         <!--View Controller-->
@@ -34,6 +34,9 @@
                                     <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
                                 </state>
                             </button>
+                            <imageView userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="JKa-MA-t89">
+                                <rect key="frame" x="172" y="319" width="30" height="30"/>
+                            </imageView>
                         </subviews>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
                     </view>
@@ -43,6 +46,7 @@
                     <simulatedScreenMetrics key="simulatedDestinationMetrics" type="retina47"/>
                     <connections>
                         <outlet property="button" destination="GnA-qd-hzW" id="bOb-BJ-gky"/>
+                        <outlet property="imageView" destination="JKa-MA-t89" id="uZo-RB-NSc"/>
                         <outlet property="label" destination="QJK-GN-cIo" id="PIi-HE-hTp"/>
                         <outlet property="leftBarButton" destination="GiA-rH-r6O" id="Wle-vD-13q"/>
                         <outlet property="toolbarItem" destination="ZcV-cv-6rW" id="8XP-V5-0gH"/>

diff --git a/Demo/FontAwesome.swift/ViewController.swift b/Demo/FontAwesome.swift/ViewController.swift
@@ -28,6 +28,7 @@ class ViewController: UIViewController {
   @IBOutlet weak var label: UILabel!
   @IBOutlet weak var toolbarItem: UIBarButtonItem!
   @IBOutlet weak var button: UIButton!
+  @IBOutlet weak var imageView: UIImageView!
 
   override func viewDidLoad() {
     super.viewDidLoad()
@@ -50,6 +51,9 @@ class ViewController: UIViewController {
     toolbarItem.setTitleTextAttributes(attributes, forState: .Normal)
     toolbarItem.title = String.fontAwesomeIconWithName(.Github)
 
+    // FontAwesome icon as image (for an UITabBarItem's image e. g.)
+    imageView.image = UIImage.fontAwesomeIconWithName(FontAwesome.Github, textColor: UIColor.blackColor(), size: CGSizeMake(30, 30))
+
   }
 }
 
diff --git a/README.md b/README.md
@@ -34,6 +34,11 @@ toolbarItem.setTitleTextAttributes(attributes, forState: .Normal)
 toolbarItem.title = String.fontAwesomeIconWithName(.Github)
 ```
 
+### FontAwesome icon as a (tabbaritem's) image
+```swift
+tabBarItem.image = UIImage.fontAwesomeIconWithName(.Github, size: CGSizeMake(30, 30), textColor: UIColor.blackColor())
+```
+
 
 ## Requirements