appendAttributedString 1.2.1

appendAttributedString 1.2.1

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appendAttributedString 1.2.1

append(attributedString, with: ease)

Swift 5

为便于操作 NSMutableAttributedString 添加一个扩展。

支持动态字体、颜色、下划线、删除线、图片，您可以连锁使用 append 调用。使用 AttributesBuilder 类可以轻松为 Attributed String 创建属性集。

使用 Cocoapods 安装

pod 'appendAttributedString'

以下是一个示例

let label = UILabel()
label.numberOfLines = 0
view.backgroundColor = .darkGray

let string = NSMutableAttributedString()

.appendHeadline("Life can rise,\n")

// call chaining
.appendFootnote("it can fall.\n\n")

// color, underline, strike through, superscript and others
.append("But in the end\nit's just carried ", color: .white)
.append("with the wind\n",
        color: .yellow,
        font: .dynamic(.systemFont(ofSize: 10)),
        baselineOffset: 5)
.append("and one day everything you do will simply cease to be…\n\n",
        color: .green,
        underlineStyle: .double)
.append("Like a child's ", color: .white)

// even images
.append(image: UIImage(named: "balloon")!,
        // (the image will not auto-adjust its height)
        height: UIFontMetrics.default.scaledValue(for: 20))

.append("\n\n")

// In specal cases use AttributesBuilder class for easier attributes set up
.append("when it's lost,\nit's a tragic affair\n",
        with: AttributesBuilder()
            .color(.white)
            .shadow(offset: CGSize(width: -7, height: 3),
                    blurRadius: 5, color: .yellow)
            .outline(width: -2, color: .red)
            .lineSpacing(30)
            .align(.center))

.append("- but it is quickly forgotten.", with:
    AttributesBuilder()
        .strikeThrough(.double, color: .white)
        .align(.right))

textView.attributedText = string

result

1.2 版本中的重大更改

删除

AttributesBuilder().paragraph(style: _)

添加

AttributesBuilder().paragraphStyle(_)

为确保段落样式始终是可变的实例，删除了接受非可变实例的旧方法。

新方法也更容易阅读。