SemanticsFlag class Null safety
A Boolean value that can be associated with a semantics node.
Properties
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
- hasCheckedState → const SemanticsFlag
-
The semantics node has the quality of either being "checked" or "unchecked".
SemanticsFlag._(_kHasCheckedStateIndex)
- hasEnabledState → const SemanticsFlag
-
The semantics node has the quality of either being "enabled" or
"disabled".
SemanticsFlag._(_kHasEnabledStateIndex)
- hasImplicitScrolling → const SemanticsFlag
-
Whether the platform can scroll the semantics node when the user attempts
to move focus to an offscreen child.
SemanticsFlag._(_kHasImplicitScrollingIndex)
- hasToggledState → const SemanticsFlag
-
The semantics node has the quality of either being "on" or "off".
SemanticsFlag._(_kHasToggledStateIndex)
- isButton → const SemanticsFlag
-
Whether the semantic node represents a button.
SemanticsFlag._(_kIsButtonIndex)
- isChecked → const SemanticsFlag
-
Whether a semantics node that hasCheckedState is checked.
SemanticsFlag._(_kIsCheckedIndex)
- isEnabled → const SemanticsFlag
-
Whether a semantic node that hasEnabledState is currently enabled.
SemanticsFlag._(_kIsEnabledIndex)
- isFocusable → const SemanticsFlag
-
Whether the semantic node is able to hold the user's focus.
SemanticsFlag._(_kIsFocusableIndex)
- isFocused → const SemanticsFlag
-
Whether the semantic node currently holds the user's focus.
SemanticsFlag._(_kIsFocusedIndex)
- isHeader → const SemanticsFlag
-
Whether a semantic node is a header that divides content into sections.
SemanticsFlag._(_kIsHeaderIndex)
- isHidden → const SemanticsFlag
-
Whether the semantics node is considered hidden.
SemanticsFlag._(_kIsHiddenIndex)
- isImage → const SemanticsFlag
-
Whether the semantics node represents an image.
SemanticsFlag._(_kIsImageIndex)
- isInMutuallyExclusiveGroup → const SemanticsFlag
-
Whether a semantic node is in a mutually exclusive group.
SemanticsFlag._(_kIsInMutuallyExclusiveGroupIndex)
- isKeyboardKey → const SemanticsFlag
-
Whether the semantic node represents a keyboard key.
SemanticsFlag._(_kIsKeyboardKeyIndex)
- isLink → const SemanticsFlag
-
Whether the semantic node is an interactive link.
SemanticsFlag._(_kIsLinkIndex)
- isLiveRegion → const SemanticsFlag
-
Whether the semantics node is a live region.
SemanticsFlag._(_kIsLiveRegionIndex)
- isMultiline → const SemanticsFlag
-
Whether the value of the semantics node is coming from a multi-line text
field.
SemanticsFlag._(_kIsMultilineIndex)
- isObscured → const SemanticsFlag
-
Whether the value of the semantics node is obscured.
SemanticsFlag._(_kIsObscuredIndex)
- isReadOnly → const SemanticsFlag
-
Whether the semantic node is read only.
SemanticsFlag._(_kIsReadOnlyIndex)
- isSelected → const SemanticsFlag
-
Whether a semantics node is selected.
SemanticsFlag._(_kIsSelectedIndex)
- isSlider → const SemanticsFlag
-
Whether the semantic node represents a slider.
SemanticsFlag._(_kIsSliderIndex)
- isTextField → const SemanticsFlag
-
Whether the semantic node represents a text field.
SemanticsFlag._(_kIsTextFieldIndex)
- isToggled → const SemanticsFlag
-
If true, the semantics node is "on". If false, the semantics node is
"off".
SemanticsFlag._(_kIsToggledIndex)
- namesRoute → const SemanticsFlag
-
Whether the semantics node label is the name of a visually distinct
route.
SemanticsFlag._(_kNamesRouteIndex)
- scopesRoute → const SemanticsFlag
-
Whether the semantics node is the root of a subtree for which a route name
should be announced.
SemanticsFlag._(_kScopesRouteIndex)
-
values
→ const Map<
int, SemanticsFlag> -
The possible semantics flags.
<int, SemanticsFlag>{_kHasCheckedStateIndex : hasCheckedState, _kIsCheckedIndex : isChecked, _kIsSelectedIndex : isSelected, _kIsButtonIndex : isButton, _kIsTextFieldIndex : isTextField, _kIsFoc…