SemanticsSelector

Projects the given set of nodes to a new set of nodes.

Summary

Public constructors
SemanticsSelector(
    description: String,
    requiresExactlyOneNode: Boolean,
    chainedInputSelector: SemanticsSelector?,
    selector: (Iterable<SemanticsNode>) -> SelectionResult
)
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Public functions
SelectionResult
map(nodes: Iterable<SemanticsNode>, errorOnFail: String)

Maps the given list of nodes to a new list of nodes.
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Public properties
String

Description that is displayed to the developer in error outputs.
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Public constructors

SemanticsSelector

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Added in 1.0.0
SemanticsSelector(
    description: String,
    requiresExactlyOneNode: Boolean,
    chainedInputSelector: SemanticsSelector? = null,
    selector: (Iterable<SemanticsNode>) -> SelectionResult
)
Parameters
description: String

Description that is displayed to the developer in error outputs.
requiresExactlyOneNode: Boolean

Whether this selector should expect to receive exactly 1 node.
chainedInputSelector: SemanticsSelector? = null

Optional selector to apply before this selector gets applied.
selector: (Iterable<SemanticsNode>) -> SelectionResult

The lambda that implements the projection.

Public functions

map

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Added in 1.0.0
fun map(nodes: Iterable<SemanticsNode>, errorOnFail: String): SelectionResult

Maps the given list of nodes to a new list of nodes.

Throws
kotlin.AssertionError

if required prerequisites to perform the selection were not satisfied.

Public properties

description

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Added in 1.0.0
val description: String

Description that is displayed to the developer in error outputs.