CurvedSemanticsScope
class CurvedSemanticsScope
CurvedSemanticsScope is the scope provided by semantics lambda blocks, letting you set semantic properties.
Summary
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Public properties |
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String? |
Developer-set content description of the semantics node. |
Float |
A value to manually control screenreader traversal order. |
Public constructors
Public properties
contentDescription
var contentDescription: String?
Developer-set content description of the semantics node.
If this is not set, accessibility services will present the text of this node as the content.
traversalIndex
var traversalIndex: Float
A value to manually control screenreader traversal order.
This API can be used to customize TalkBack traversal order. When the traversalIndex property is set on a traversalGroup or on a screenreader-focusable node, then the sorting algorithm will prioritize nodes with smaller traversalIndexs earlier. The default traversalIndex value is zero, and traversalIndices are compared at a peer level.
For example,traversalIndex = -1f can be used to force a top bar to be ordered earlier, and traversalIndex = 1f to make a bottom bar ordered last, in the edge cases where this does not happen by default. As another example, if you need to reorder two Buttons within a Row, then you can set isTraversalGroup = true on the Row, and set traversalIndex on one of the Buttons.
Note that if traversalIndex seems to have no effect, be sure to set isTraversalGroup = true as well in a parent node.