Common
```kotlin
/*@VisibleForTesting*/
object SemanticsProperties
```
General semantics properties, mainly used for accessibility and testing.
Each of these is intended to be set by the respective SemanticsPropertyReceiver extension instead
of used directly.
## Properties
Common
```kotlin
val ContentDescription =
AccessibilityKey>(
name = "ContentDescription",
mergePolicy = { parentValue, childValue ->
parentValue?.toMutableList()?.also { it.addAll(childValue) } ?: childValue
},
)
```
Common
```kotlin
val StateDescription = AccessibilityKey("StateDescription")
```
Common
```kotlin
val ProgressBarRangeInfo = AccessibilityKey("ProgressBarRangeInfo")
```
Common
```kotlin
val PaneTitle =
AccessibilityKey(
name = "PaneTitle",
mergePolicy = { _, _ ->
throw IllegalStateException(
"merge function called on unmergeable property PaneTitle."
)
},
)
```
Common
```kotlin
val SelectableGroup = AccessibilityKey("SelectableGroup")
```
Common
```kotlin
val CollectionInfo = AccessibilityKey("CollectionInfo")
```
Common
```kotlin
val CollectionItemInfo = AccessibilityKey("CollectionItemInfo")
```
Common
```kotlin
val Heading = AccessibilityKey("Heading")
```
Common
```kotlin
val TextEntryKey = AccessibilityKey("TextEntryKey")
```
Common
```kotlin
val Disabled = AccessibilityKey("Disabled")
```
Common
```kotlin
val LiveRegion = AccessibilityKey("LiveRegion")
```
Common
```kotlin
val Focused = AccessibilityKey("Focused")
```
Common
> **Deprecated** Use `isTraversalGroup` instead.
```kotlin
val IsContainer = AccessibilityKey("IsContainer")
```
Common
```kotlin
val IsTraversalGroup = SemanticsPropertyKey("IsTraversalGroup")
```
Common
```kotlin
val IsSensitiveData = SemanticsPropertyKey("IsSensitiveData")
```
Common
> **Deprecated** Use `hideFromAccessibility` instead.
```kotlin
val InvisibleToUser =
SemanticsPropertyKey(
name = "InvisibleToUser",
mergePolicy = { parentValue, _ -> parentValue },
)
```
Common
```kotlin
val HideFromAccessibility =
SemanticsPropertyKey(
name = "HideFromAccessibility",
mergePolicy = { parentValue, _ -> parentValue },
)
```
Common
```kotlin
val ContentType =
SemanticsPropertyKey(
name = "ContentType",
mergePolicy = { parentValue, _ ->
parentValue
},
)
```
Common
```kotlin
val ContentDataType =
SemanticsPropertyKey(
name = "ContentDataType",
mergePolicy = { parentValue, _ ->
parentValue
},
)
```
Common
```kotlin
val FillableData =
SemanticsPropertyKey(
name = "FillableData",
mergePolicy = { parentValue, _ ->
parentValue
},
)
```
Common
```kotlin
val TraversalIndex =
SemanticsPropertyKey(
name = "TraversalIndex",
mergePolicy = { parentValue, _ ->
parentValue
},
)
```
Common
```kotlin
val HorizontalScrollAxisRange = AccessibilityKey("HorizontalScrollAxisRange")
```
Common
```kotlin
val VerticalScrollAxisRange = AccessibilityKey("VerticalScrollAxisRange")
```
Common
```kotlin
val IsPopup =
AccessibilityKey(
name = "IsPopup",
mergePolicy = { _, _ ->
throw IllegalStateException(
"merge function called on unmergeable property IsPopup. " +
"A popup should not be a child of a clickable/focusable node."
)
},
)
```
Common
```kotlin
val IsDialog =
AccessibilityKey(
name = "IsDialog",
mergePolicy = { _, _ ->
throw IllegalStateException(
"merge function called on unmergeable property IsDialog. " +
"A dialog should not be a child of a clickable/focusable node."
)
},
)
```
Common
```kotlin
val Role = AccessibilityKey("Role") { parentValue, _ -> parentValue }
```
The type of user interface element. Accessibility services might use this to describe the
element or do customizations. Most roles can be automatically resolved by the semantics
properties of this element. But some elements with subtle differences need an exact role. If
an exact role is not listed in [Role](/jetpack-compose/androidx.compose.ui/ui/classes/Role), this property should not be set and the framework will
automatically resolve it.
Common
```kotlin
val TestTag =
SemanticsPropertyKey(
name = "TestTag",
isImportantForAccessibility = false,
mergePolicy = { parentValue, _ ->
parentValue
},
)
```
Common
```kotlin
val LinkTestMarker =
SemanticsPropertyKey(
name = "LinkTestMarker",
isImportantForAccessibility = false,
mergePolicy = { parentValue, _ -> parentValue },
)
```
Marks a link within a text node (a link is represented by a
[androidx.compose.ui.text.LinkAnnotation](/jetpack-compose/androidx.compose.ui/ui-text/classes/LinkAnnotation)) for identification during automated testing. This
property is for internal use only and not intended for general use by developers.
Common
```kotlin
val Text =
AccessibilityKey>(
name = "Text",
mergePolicy = { parentValue, childValue ->
parentValue?.toMutableList()?.also { it.addAll(childValue) } ?: childValue
},
)
```
Common
```kotlin
val TextSubstitution = SemanticsPropertyKey(name = "TextSubstitution")
```
Common
```kotlin
val IsShowingTextSubstitution = SemanticsPropertyKey("IsShowingTextSubstitution")
```
Common
```kotlin
val InputText = AccessibilityKey(name = "InputText")
```
Common
```kotlin
val EditableText = AccessibilityKey(name = "EditableText")
```
Common
```kotlin
val TextSelectionRange = AccessibilityKey("TextSelectionRange")
```
Common
```kotlin
val TextCompositionRange = AccessibilityKey("TextCompositionRange")
```
Common
```kotlin
val ImeAction = AccessibilityKey("ImeAction")
```
Common
```kotlin
val Selected = AccessibilityKey("Selected")
```
Common
```kotlin
val ToggleableState = AccessibilityKey("ToggleableState")
```
Common
```kotlin
val InputTextSuggestionState =
AccessibilityKey("InputTextSuggestionState")
```
Common
```kotlin
val Password = AccessibilityKey("Password")
```
Common
```kotlin
val Error = AccessibilityKey("Error")
```
Common
```kotlin
val IndexForKey = SemanticsPropertyKey<(Any) -> Int>("IndexForKey")
```
Common
```kotlin
val IsEditable = SemanticsPropertyKey("IsEditable")
```
Common
```kotlin
val MaxTextLength = SemanticsPropertyKey("MaxTextLength")
```
Common
```kotlin
val Shape =
SemanticsPropertyKey(
name = "Shape",
isImportantForAccessibility = false,
mergePolicy = { parentValue, _ ->
parentValue
},
)
```