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Practical Dynamic Type, Part 3: Attributed Strings
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/// `FontSetterAttributeKey` is used to keep track of the custom Font assigned to a range within | |
/// an `AttributedString`. | |
static let FontSetterAttributeKey = NSAttributedString.Key.init("FontSetterAttributeKey") | |
/// A `UILabel` that will render the attributed string with Dynamic Type. | |
lazy var display: UILabel = { | |
let fontSetter1: FontSetter = { UIFont.customFont(weight: .bold, points: 18.0) } | |
let string1 = NSAttributedString( | |
string: "Jived fox nymph grabs quick waltz. ", | |
attributes: [AttributedStringView.FontSetterAttributeKey : fontSetter1, /// <= Attaching the FontSetter for this string | |
.font: fontSetter1() | |
] | |
) | |
let fontSetter2: FontSetter = { UIFont.customFont(weight: .light, points: 8.0) } | |
let string2 = NSAttributedString( | |
string: "Glib jocks quiz nymph to vex dwarf. ", | |
attributes: [AttributedStringView.FontSetterAttributeKey : fontSetter2, /// <= Attaching the FontSetter for this string | |
.font: fontSetter2() | |
] | |
) | |
let fontSetter3: FontSetter = { UIFont.customFont(NeutrafaceSlabTextFont.self, | |
weight: .demi, | |
points: 18.0, | |
maximumPointSize: 24.0) } | |
let string3 = NSAttributedString( | |
string: "Sphinx of black quartz, judge my vow. ", | |
attributes: [AttributedStringView.FontSetterAttributeKey : fontSetter3, /// <= Attaching the FontSetter for this string | |
.font: fontSetter3() | |
] | |
) | |
let fontSetter4: FontSetter = { UIFont.customFont(weight: .heavy, | |
points: 48.0) } | |
let string4 = NSAttributedString( | |
string: "How vexingly quick daft zebras jump!", | |
attributes: [AttributedStringView.FontSetterAttributeKey : fontSetter4, /// <= Attaching the FontSetter for this string | |
.font: fontSetter4() | |
] | |
) | |
/// ... | |
}() |
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