Components

Type(iOS)

Styles for header and body text.

Summary

Font contains constants for UIFont instances of each Thumbprint text style, as well as font variants and helper functions for use with Dynamic Type (see Accessibility below).

Accessibility

Thumbprint supports both static fonts and Dynamic Type–the iOS feature that enables users to choose their preferred text/content size. To get a UIFont instance that will respect the user’s preferred content size, use one of the Font.dynamic(Text/Title)* constants or the dynamicFont property on a Font.TextStyle. If you will be using this font instance with an NSAttributedString, use the scaledFont(compatibleWith:) function on Font.TextStyle instead (otherwise the text size won’t scale as expected).

Public API

Font

public static let title1: UIFont

Static font with title 1 style.

Title 1 text style

public static let title2: UIFont

Static font with title 2 style.

Title 2 text style

public static let title3: UIFont

Static font with title 3 style.

Title 3 text style

public static let title4: UIFont

Static font with title 4 style.

Title 4 text style

public static let title5: UIFont

Static font with title 5 style.

Title 5 text style

public static let title6: UIFont

Static font with title 6 style.

Title 6 text style

public static let title7: UIFont

Static font with title 7 style.

Title 7 text style

public static let title8: UIFont

Static font with title 8 style.

Title 8 text style

public static let text1: UIFont

Static font with text 1 style.

Text 1 text style

public static let text2: UIFont

Static font with text 2 style.

Text 2 text style

public static let text3: UIFont

Static font with text 3 style.

Text 3 text style

public static let dynamicTitle1: UIFont

Font with title 1 style that supports scaling for accessibility.

public static let dynamicTitle2: UIFont

Font with title 2 style that supports scaling for accessibility.

public static let dynamicTitle3: UIFont

Font with title 3 style that supports scaling for accessibility.

public static let dynamicTitle4: UIFont

Font with title 4 style that supports scaling for accessibility.

public static let dynamicTitle5: UIFont

Font with title 5 style that supports scaling for accessibility.

public static let dynamicTitle6: UIFont

Font with title 6 style that supports scaling for accessibility.

public static let dynamicTitle7: UIFont

Font with title 7 style that supports scaling for accessibility.

public static let dynamicTitle8: UIFont

Font with title 8 style that supports scaling for accessibility.

public static let dynamicText1: UIFont

Font with text 1 style that supports scaling for accessibility.

public static let dynamicText2: UIFont

Font with text 2 style that supports scaling for accessibility.

public static let dynamicText3: UIFont

Font with text 3 style that supports scaling for accessibility.

public static var traitCollectionOverrideForTesting: UITraitCollection?

Used by snapshot tests to forcefully apply the given trait collection. Do not use in application code.

static func loadCustomFonts()

Prepare fonts for use.

static func scaledValue(_ value: CGFloat, for style: TextStyle) -> CGFloat

Scale a floating point value by the same multiplier that is currently being used for Dynamic Type on the specific text style.

Font.TextStyle

case title1, title2, title3, title4, title5, title6, title7, title8, text1, text2, text3

Enum cases for each Thumbprint text style.

public var font: UIFont

Static font with this text style.

public var dynamicFont: UIFont

Font with this text style that supports scaling for accessibility.

public func scaledFont(compatibleWith traitCollection: UITraitCollection) -> UIFont

Font with this text style that supports scaling for accessibility and is configured with a specific trait collection. When using attributed strings, UIContentSizeCategoryAdusting.adjustsFontForContentSizeCategory does not work, and therefore fonts must be configured with a specific trait collection and updated any time the preferred content size category on the relevant view changes.

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