yonat/systemfontoverride

Easy font branding for your iOS app.

Features

Override the default system font with your own branded font.
Compatible with both UIKit and SwiftUI.
Simple and intuitive API for quick integration.

Usage

Instant font branding, automatically overriding system font:

UIFont.systemFontFamilyOverride = "Marker Felt" // replace with appropriate font

Explicitly specify font in UIKit:

someUIKitElement.font = .systemFontOverride(size: 16)

Explicitly specify font in SwiftUI:

someSwiftUIView
    .font(.systemOverride(size: 16))

Installation

CocoaPods:

pod 'SystemFontOverride'

Swift Package Manager:

dependencies: [
    .package(url: "https://github.com/yonat/SystemFontOverride", from: "1.0.0")
]

Limitations

Most UI elements will just work with the override font.

However, a few elements completely ignore the override:

Sheet presented by ColorPicker or UIColorWell

Additionally, some SwiftUI controls require explicit .font() modifier to update their title font:

Picker
Menu
Toggle
bordered and borderedProminent button styles
Label in some contexts

See the Demo app for details.

Mechanism

To automatically override the system font, SystemFontOverride uses method swizzling for UIFont.systemFont(ofSize:) and related methods.

Segmented controls and UITextField ignore the system font override, but their appearance() proxy correctly sets their titles to the override font.

[swift-image]:https://img.shields.io/badge/swift-5.0-orange.svg [swift-url]: https://swift.org/ [license-image]: https://img.shields.io/badge/License-MIT-blue.svg [license-url]: LICENSE.txt

Package Metadata

Repository: yonat/systemfontoverride

Default branch: main

README: README.md