Icons fonts for iOS (Font Awesome 5, Iconic, Ionicon, Octicon, Themify, MapIcon, MaterialIcon, Foundation 3, Elegant Icon, Captain Icon)

This is a simple refactor of code you already had written for UITabBarItem. It exposes that method to a UIImage Category so it is more reusable.

This should be updated to add more features like a background color or something like that later.

Hi, Love this framework but I seem to have a problem with parseIcon, as it works only with fa:* I tried all other sources but non of them works.

I am working with Xcode 8 running iOS target 9.0, the device it self has iOS 10

Thanks.

SwiftIconFont Version

6.1.0

Steps to Reproduce

1. With SwiftIconFont installed, visit the Material Design Icons library or Map Icons library
2. Copy the name of an icon that contains an underscore (ie. accessibility_new)
3. Paste the copied name to use as a code (ie. UIImage(from:code:textColor:backgroundColor:size:) Such as:

UIImage(from: .materialIcon,
        code: "accessibility_new", // <--
        textColor: .black,
        backgroundColor: .clear,
        size: CGSize(width: 50, height: 50))

Expected behavior

Material Design Icon for accessibility_new correctly displays as a UIImage

Actual Behavior

Runtime failure Thread 1: Swift runtime failure: Unexpectedly found nil while unwrapping an Optional value

Workaround

When using MaterialIcon or MapIcon, replace any _ with . ie. change from: accessibility_new to accessibility.new

Possible Fix 1

Update README file with "quirks", minor changes needed, or expectations that the user should have when referencing the font's libraries.

Possible Fix 2

Update the keys within the array mapping to directly reflect the font's libraries. (MapIcon.swift and MaterialIcon.swift)

Possible Fix 3

Add a nil check to verify that the icon has been found. If not, throw or print a more specific error

Related

#37

import SwiftIconFont

let githubLogo = UIImage(from: .Octicon, code: "logo-github", textColor: .black, backgroundColor: .clear, size: CGSize(width: 150, height: 50))

Error: "Type of expression is ambiguous without more context"

I am using Swift 3.2, Xcode 9.1 Thanks

Hi,

I love your library and I've been using it for almost all of my apps, but I've come across this error when using more than one Material Icons in one app.

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'The operation couldn’t be completed. (com.apple.CoreText.CTFontManagerErrorDomain error 105 - Could not register the CGFont '<CGFont (0x7f8a9345fd60): MaterialIcons-Regular>')'

Doing some research, it was complaining because it was trying to register the font again for some reason by calling FontLoader.loadFont(fontName) twice for the same font. Basically, UIFont.fontNamesForFamilyName(fontName) is still empty after the first registration.

I wasn't sure why it was not working for Material Icons, but my workaround was to call CTFontManagerUnregisterGraphicsFont prior to calling CTFontManagerRegisterGraphicsFont, which is an ugly fix, but I didn't look into the problem deeper and needed to find quick fix.

Anyways, I'm not sure if this is only happening to me but wanted to raise the issue for anyone else facing similar problem.

Thank you

Seen under iOS (not tested on macOS). The root cause is both these fonts have the same family name, so Font.icon() doesn't load the second font after Font.fontNames(forFamilyName:) returns non-zero fonts.

I have a fix, will submit PR.

In my app I fetch data for icons from webservice, I receive for example fa:file string for an icon, I need to display this icon into UIImage but I can not parse info without this functions.

Added public classifier to Class for making it accessable from Objective-C. Added public classifier to properties for making them accessable from Objective-C. Added @objc annotation for calling parseIcon function from Objective-C.

The code below works for a normal UIViewController

    let settingBarButtonItem = UIBarButtonItem(title: "settings", style: .plain, target: self, action: #selector(showSetting))
    settingBarButtonItem.icon(from: .materialIcon, code: "settings", ofSize: 20)
    navigationItem.rightBarButtonItem = settingBarButtonItem        

But for UIDocumentBrowserViewController, additionalTrailingNavigationBarButtonItems is used to add extra items.

additionalTrailingNavigationBarButtonItems = [settingBarButtonItem]

When I did it, the icon always shows as a question mark.

Thank you for a great framework. I love it.

The function GetIconIndexWithSelectedIcon() does a curious conversion between NSString and String. I don't think this is necessary.

Perhaps change from:

for substring in ((text as String).split{$0 == " "}.map(String.init)) {

Change to:

for substring in icon.components(separatedBy: " ") {

The SwiftIconFont.swift file uses NSString several places, where it could be a String.

test:

let button = UIButton(frame: CGRect(x: 120, y: self.view.frame.size.height - 200, width: 150, height: 30))
button.setTitle("fa:chevron-left", for: .normal)
button.setTitleColor(.black, for: .normal)
button.parseIcon()
self.view.addSubview(button)

But the button says: fa:chevron_left

When it comes to:

button.setTitle("oc:logo-github", for: .normal)

It's OK.