Enumeration 列挙

AccessibilityHeadingLevel

The hierarchy of a heading in relation other headings.

Declaration 宣言 

@frozen enum AccessibilityHeadingLevel

Overview 概要

Assistive technologies can use this to improve a users navigation through multiple headings. When users navigate through top level headings they expect the content for each heading to be unrelated.

For example, you can categorize a list of available products into sections, like Fruits and Vegetables. With only top level headings, this list requires no heading hierarchy, and you use the AccessibilityHeadingLevel.unspecified heading level. On the other hand, if sections contain subsections, like if the Fruits section has subsections for varieties of Apples, Pears, and so on, you apply the AccessibilityHeadingLevel.h1 level to Fruits and Vegetables, and the AccessibilityHeadingLevel.h2 level to Apples and Pears.

Except for AccessibilityHeadingLevel.h1, be sure to precede all leveled headings by another heading with a level that’s one less.

Topics 話題

Enumeration Cases 列挙ケース

case h1
Level 1 heading.
case h2
Level 2 heading.
case h3
Level 3 heading.
case h4
Level 4 heading.
case h5
Level 5 heading.
case h6
Level 6 heading.
case unspecified
A heading without a hierarchy.

Initializers イニシャライザ

init?(rawValue: UInt)
Creates a new instance with the specified raw value. ある新しいインスタンスをこの指定された生の値で作成します。

Instance Properties インスタンスプロパティ

var rawValue: UInt
The corresponding value of the raw type. 生の型の対応している値。

Type Aliases 型エイリアス

typealias RawValue
The raw type that can be used to represent all values of the conforming type. 準拠している型の全ての値を表すために使われることができる生の型。

Default Implementations 省略時実装

Equatable Implementations
RawRepresentable Implementations

Relationships 関係

Conforms To 次に準拠

See Also 参照

Content Descriptions

func accessibilityTextContentType(AccessibilityTextContentType) -> ModifiedContent<Self, AccessibilityAttachmentModifier>
Sets an accessibility text content type.
func accessibilityHeading(AccessibilityHeadingLevel) -> ModifiedContent<Self, AccessibilityAttachmentModifier>
Sets the accessibility level of this heading.
struct AccessibilityTextContentType
Textual context that assistive technologies can use to improve the presentation of spoken text.