Field Class

Definition

Namespace:: Java.Lang.Reflect

Assembly:: Mono.Android.dll

Important

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A Field provides information about, and dynamic access to, a single field of a class or an interface.

[Android.Runtime.Register("java/lang/reflect/Field", DoNotGenerateAcw=true)]
public sealed class Field : Java.Lang.Reflect.AccessibleObject, IDisposable, Java.Lang.Reflect.IMember

[<Android.Runtime.Register("java/lang/reflect/Field", DoNotGenerateAcw=true)>]
type Field = class
    inherit AccessibleObject
    interface IMember
    interface IJavaObject
    interface IDisposable
    interface IJavaPeerable

Inheritance: Object

JavaObject

Object

AccessibleObject
Field

Attributes: RegisterAttribute

Implements: IJavaObject IJavaPeerable IMember IDisposable

Remarks

A Field provides information about, and dynamic access to, a single field of a class or an interface. The reflected field may be a class (static) field or an instance field.

A Field permits widening conversions to occur during a get or set access operation, but throws an IllegalArgumentException if a narrowing conversion would occur.

Java documentation for java.lang.reflect.Field.

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.

Properties

Name	Description
Accessible	Get the value of the `accessible` flag for this object. -or- Set the `accessible` flag for this object to the indicated boolean value. (Inherited from AccessibleObject)
Class	Returns the runtime class of this `Object`. (Inherited from Object)
DeclaringClass	Returns the `Class` object representing the class or interface that declares the field represented by this `Field` object.
GenericType	Returns a `Type` object that represents the declared type for the field represented by this `Field` object.
Handle	The handle to the underlying Android instance. (Inherited from Object)
IsEnumConstant	Returns `true` if this field represents an element of an enumerated type; returns `false` otherwise.
IsSynthetic	Returns `true` if this field is a synthetic field; returns `false` otherwise.
JniIdentityHashCode	Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object)
JniManagedPeerState	(Inherited from JavaObject)
JniPeerMembers
Modifiers	Returns the Java language modifiers for the field represented by this `Field` object, as an integer.
Name	Returns the name of the field represented by this `Field` object.
PeerReference	Gets the JNI object reference for this Java peer. (Inherited from Object)
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from AccessibleObject)
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from AccessibleObject)
Type	Returns a `Class` object that identifies the declared type for the field represented by this `Field` object.

Methods

Name	Description
Clone()	Creates and returns a copy of this object. (Inherited from Object)
Construct(JniObjectReference, JniObjectReferenceOptions)	(Inherited from JavaObject)
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)
Get(Object)	Returns the value of the field represented by this `Field`, on the specified object.
GetAnnotation(Class)	Added in 1.
GetAnnotations()	Returns annotations that are present on this object. (Inherited from AccessibleObject)
GetAnnotationsByType(Class)	Returns annotations of the specified type that are associated with this object. (Inherited from AccessibleObject)
GetBoolean(Object)	Gets the value of a static or instance `boolean` field.
GetByte(Object)	Gets the value of a static or instance `byte` field.
GetChar(Object)	Gets the value of a static or instance field of type `char` or of another primitive type convertible to type `char` via a widening conversion.
GetDeclaredAnnotation(Class)	Returns this object's annotation for the specified type if the annotation is directly present; otherwise, returns null. (Inherited from AccessibleObject)
GetDeclaredAnnotations()	Returns annotations that are directly present on this object. (Inherited from AccessibleObject)
GetDeclaredAnnotationsByType(Class)	Returns annotations of the specified type that are directly present or indirectly present on this object. (Inherited from AccessibleObject)
GetDouble(Object)	Gets the value of a static or instance field of type `double` or of another primitive type convertible to type `double` via a widening conversion.
GetFloat(Object)	Gets the value of a static or instance field of type `float` or of another primitive type convertible to type `float` via a widening conversion.
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
GetInt(Object)	Gets the value of a static or instance field of type `int` or of another primitive type convertible to type `int` via a widening conversion.
GetLong(Object)	Gets the value of a static or instance field of type `long` or of another primitive type convertible to type `long` via a widening conversion.
GetShort(Object)	Gets the value of a static or instance field of type `short` or of another primitive type convertible to type `short` via a widening conversion.
IsAnnotationPresent(Class)
JavaFinalize()	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)
Set(Object, Object)	Sets the field represented by this `Field` object on the specified object argument to the specified new value.
SetBoolean(Object, Boolean)	Sets the value of a field as a `boolean` on the specified object.
SetByte(Object, SByte)	Sets the value of a field as a `byte` on the specified object.
SetChar(Object, Char)	Sets the value of a field as a `char` on the specified object.
SetDouble(Object, Double)	Sets the value of a field as a `double` on the specified object.
SetFloat(Object, Single)	Sets the value of a field as a `float` on the specified object.
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
SetInt(Object, Int32)	Sets the value of a field as an `int` on the specified object.
SetLong(Object, Int64)	Sets the value of a field as a `long` on the specified object.
SetPeerReference(JniObjectReference, JniObjectReferenceOptions)	(Inherited from JavaObject)
SetShort(Object, Int16)	Sets the value of a field as a `short` on the specified object.
ToArray<T>()	Creates a managed array from this Java array wrapper. (Inherited from Object)
ToGenericString()	Returns a string describing this `Field`, including its generic type.
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)

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 `self`.
JavaAs<TResult>(IJavaPeerable)	Try to coerce `self` to type `TResult`, checking that the coercion is valid on the Java side.
JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
TryJavaCast<TResult>(IJavaPeerable, TResult)	Try to coerce `self` to type `TResult`, checking that the coercion is valid on the Java side.

Applies to