AccessibilityNodeInfo.MathInfo Class
Definition
Important
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A class that holds information about a node that represents a mathematical expression.
[Android.Runtime.Register("android/view/accessibility/AccessibilityNodeInfo$MathInfo", ApiSince=37, DoNotGenerateAcw=true)]
public sealed class AccessibilityNodeInfo.MathInfo : Android.Views.Accessibility.AccessibilityNodeInfo.StructuredDataInfo, Android.OS.IParcelable, IDisposable[<Android.Runtime.Register("android/view/accessibility/AccessibilityNodeInfo$MathInfo", ApiSince=37, DoNotGenerateAcw=true)>]
type AccessibilityNodeInfo.MathInfo = class
inherit AccessibilityNodeInfo.StructuredDataInfo
interface IParcelable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Attributes
- Implements
Remarks
A class that holds information about a node that represents a mathematical expression.
This class's structure is based on the concepts and tags defined in the W3C MathML standard. An accessibility service can use this information to provide a richer experience for users interacting with mathematical content. For example, a screen reader could use the tag and attributes to correctly pronounce a fraction and allow the user to navigate between the numerator and the denominator.
To add math information to a node, create an instance of MathInfo, set its attributes using putAttribute(String,String), and then call setStructuredDataInfo(StructuredDataInfo) on the AccessibilityNodeInfo.
Android reference for android.view.accessibility.AccessibilityNodeInfo.MathInfo.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Constructors
| Name | Description |
|---|---|
| AccessibilityNodeInfo.MathInfo(String) |
Creates a new MathInfo. |
Fields
| Name | Description |
|---|---|
| MathAttributeArg |
An attribute used to associate a child element with one of the arguments in its parent's
|
| MathAttributeIntent |
An attribute that provides a semantic annotation for the element on which it is specified. |
| MathTagFraction |
An element for creating fractions. |
| MathTagIdentifier |
An element for symbolic names or arbitrary text to be rendered as an identifier. |
| MathTagMath |
The top-level root element that encapsulates a MathML expression. |
| MathTagMultiscripts |
An element for attaching any number of prescripts and postscripts to a base expression. |
| MathTagNoneScript |
Represents an empty element, often used as a placeholder in elements like
|
| MathTagNumber |
An element for a numeric literal. |
| MathTagOperator |
An element for an operator, fence, separator, or accent. |
| MathTagOver |
An element that attaches an accent or a limit over a base expression. |
| MathTagPrescriptDelimiter |
An empty element used within |
| MathTagRoot |
An element for radicals with an explicit index, such as a cube root. |
| MathTagRow |
An element for grouping sub-expressions horizontally. |
| MathTagSquareRoot |
An element for a square root. |
| MathTagStringLiteral |
An element for representing string literals, often for computer algebra systems. |
| MathTagSub |
An element that attaches a subscript to a base expression. |
| MathTagSubSup |
An element that attaches both a subscript and a superscript to a base expression. |
| MathTagSup |
An element that attaches a superscript to a base expression. |
| MathTagTable |
An element for creating tables or matrices. |
| MathTagTableCell |
An element representing a single cell in a table or matrix. |
| MathTagTableRow |
An element representing a single row in a a table or matrix. |
| MathTagText |
An element for arbitrary text to be rendered as itself, often used for commentary. |
| MathTagUnder |
An element that attaches an accent or a limit under a base expression. |
| MathTagUnderOver |
An element that attaches scripts both under and over a base expression. |
Properties
| Name | Description |
|---|---|
| Attributes | (Inherited from AccessibilityNodeInfo.StructuredDataInfo) |
| Class |
Returns the runtime class of this |
| Creator | |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| JniIdentityHashCode |
Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object) |
| JniManagedPeerState | (Inherited from JavaObject) |
| JniPeerMembers | |
| PeerReference |
Gets the JNI object reference for this Java peer. (Inherited from Object) |
| Tag | (Inherited from AccessibilityNodeInfo.StructuredDataInfo) |
| ThresholdClass | (Inherited from AccessibilityNodeInfo.StructuredDataInfo) |
| ThresholdType | (Inherited from AccessibilityNodeInfo.StructuredDataInfo) |
Methods
| Name | Description |
|---|---|
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Construct(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| DescribeContents() |
Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| Dispose() |
Releases the resources held by this Java peer. (Inherited from Object) |
| Dispose(Boolean) |
Releases the resources held by this Java peer. (Inherited from Object) |
| DisposeUnlessReferenced() | (Inherited from JavaObject) |
| Equals(Object) | (Inherited from JavaObject) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetAttribute(String) |
Gets the value of an attribute. (Inherited from AccessibilityNodeInfo.StructuredDataInfo) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Obsolete.
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| PutAttribute(String, String) |
Adds an attribute. (Inherited from AccessibilityNodeInfo.StructuredDataInfo) |
| RemoveAttribute(String) |
Removes an attribute. (Inherited from AccessibilityNodeInfo.StructuredDataInfo) |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetPeerReference(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| ToArray<T>() |
Creates a managed array from this Java array wrapper. (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() |
Unregisters this Java peer from the interop runtime. (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| WriteToParcel(Parcel, ParcelableWriteFlags) |
Flatten this object in to a Parcel. |
Explicit Interface Implementations
| Name | Description |
|---|---|
| IJavaPeerable.Disposed() | (Inherited from JavaObject) |
| IJavaPeerable.Finalized() | (Inherited from JavaObject) |
| IJavaPeerable.JniObjectReferenceControlBlock | (Inherited from JavaObject) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from JavaObject) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from JavaObject) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from JavaObject) |
| IJavaPeerable.UnregisterFromRuntime() | |
Extension Methods
| Name | Description |
|---|---|
| GetJniTypeName(IJavaPeerable) |
Gets the JNI name of the type of the instance |
| JavaAs<TResult>(IJavaPeerable) |
Try to coerce |
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| TryJavaCast<TResult>(IJavaPeerable, TResult) |
Try to coerce |