Message Message Class

Definition

Defines a message containing a description and arbitrary data object that can be sent to a Handler.

[Android.Runtime.Register("android/os/Message", ApiSince=1, DoNotGenerateAcw=true)]
public sealed class Message : Java.Lang.Object, Android.OS.IParcelable, IDisposable
type Message = class
    inherit Object
    interface IParcelable
    interface IJavaObject
    interface IDisposable
Inheritance
MessageMessage
Attributes
Implements

Remarks

Android platform documentation

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

Message() Message()

Constructor (but the preferred way to get a Message is to call Obtain()).

Properties

Arg1 Arg1

arg1 and arg2 are lower-cost alternatives to using Data if you only need to store a few integer values.

Arg2 Arg2

arg1 and arg2 are lower-cost alternatives to using Data if you only need to store a few integer values.

Asynchronous Asynchronous
Callback Callback

Retrieve callback object that will execute when this message is handled.

Class Class

Returns the unique instance of Class that represents this object's class.

(Inherited from Object)
Creator Creator
Data Data

Obtains a Bundle of arbitrary data associated with this event, lazily creating it if necessary.

Handle Handle

The handle to the underlying Android instance.

(Inherited from Object)
IJavaObjectEx.IsProxy IJavaObjectEx.IsProxy Inherited from Object
IJavaObjectEx.KeyHandle IJavaObjectEx.KeyHandle Inherited from Object
IJavaObjectEx.NeedsActivation IJavaObjectEx.NeedsActivation Inherited from Object
IJavaPeerable.JniManagedPeerState IJavaPeerable.JniManagedPeerState Inherited from Object
JniIdentityHashCode JniIdentityHashCode Inherited from Object
JniPeerMembers JniPeerMembers
Obj Obj

An arbitrary object to send to the recipient.

PeerReference PeerReference Inherited from Object
ReplyTo ReplyTo

Optional Messenger where replies to this message can be sent.

SendingUid SendingUid

Optional field indicating the uid that sent the message.

Target Target

Retrieve the a Handler implementation that will receive this message.

ThresholdClass ThresholdClass

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

(Inherited from Object)
ThresholdType ThresholdType

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

(Inherited from Object)
What What

User-defined message code so that the recipient can identify what this message is about.

When When

Return the targeted delivery time of this message, in milliseconds.

Methods

Clone() Clone()

Creates and returns a copy of this Object.

(Inherited from Object)
CopyFrom(Message) CopyFrom(Message)

Make this message like o.

DescribeContents() DescribeContents()

Describe the kinds of special objects contained in this Parcelable's marshalled representation.

Dispose() Dispose() Inherited from Object
Dispose(Boolean) Dispose(Boolean) Inherited from Object
Equals(Object) Equals(Object)

Compares this instance with the specified object and indicates if they are equal.

(Inherited from Object)
GetHashCode() GetHashCode()

Returns an integer hash code for this object.

(Inherited from Object)
JavaFinalize() JavaFinalize()

Invoked when the garbage collector has detected that this instance is no longer reachable.

(Inherited from Object)
Notify() Notify()

Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.

(Inherited from Object)
NotifyAll() NotifyAll()

Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.

(Inherited from Object)
Obtain() Obtain()

Return a new Message instance from the global pool.

Obtain(Handler) Obtain(Handler)

Same as Obtain(), but sets the value for the target member on the Message returned.

Obtain(Handler, Action) Obtain(Handler, Action)
Obtain(Handler, Int32) Obtain(Handler, Int32)

Same as Obtain(), but sets the values for both target and what members on the Message.

Obtain(Handler, Int32, Int32, Int32) Obtain(Handler, Int32, Int32, Int32)

Same as Obtain(), but sets the values of the target, what, arg1, and arg2 members.

Obtain(Handler, Int32, Int32, Int32, Object) Obtain(Handler, Int32, Int32, Int32, Object)

Same as Obtain(), but sets the values of the target, what, arg1, arg2, and obj members.

Obtain(Handler, Int32, Object) Obtain(Handler, Int32, Object)

Same as Obtain(), but sets the values of the target, what, and obj members.

Obtain(Handler, IRunnable) Obtain(Handler, IRunnable)

Same as Obtain(Handler), but assigns a callback Runnable on the Message that is returned.

Obtain(Message) Obtain(Message)

Same as Obtain(), but copies the values of an existing message (including its target) into the new one.

PeekData() PeekData()

Like getData(), but does not lazily create the Bundle.

Recycle() Recycle()

Return a Message instance to the global pool.

SendToTarget() SendToTarget()

Sends this Message to the Handler specified by Target.

SetHandle(IntPtr, JniHandleOwnership) SetHandle(IntPtr, JniHandleOwnership)

Sets the Handle property.

(Inherited from Object)
ToArray<T>() ToArray<T>() Inherited from Object
ToString() ToString()

Returns a string containing a concise, human-readable description of this object.

(Inherited from Object)
UnregisterFromRuntime() UnregisterFromRuntime() Inherited from Object
Wait() Wait()

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

(Inherited from Object)
Wait(Int64) Wait(Int64)

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.

(Inherited from Object)
Wait(Int64, Int32) Wait(Int64, Int32)

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.

(Inherited from Object)
WriteToParcel(Parcel, ParcelableWriteFlags) WriteToParcel(Parcel, ParcelableWriteFlags)

Flatten this object in to a Parcel.

Explicit Interface Implementations

IJavaObjectEx.ToLocalJniHandle() IJavaObjectEx.ToLocalJniHandle() Inherited from Object
IJavaPeerable.Disposed() IJavaPeerable.Disposed() Inherited from Object
IJavaPeerable.DisposeUnlessReferenced() IJavaPeerable.DisposeUnlessReferenced() Inherited from Object
IJavaPeerable.Finalized() IJavaPeerable.Finalized() Inherited from Object
IJavaPeerable.SetJniIdentityHashCode(Int32) IJavaPeerable.SetJniIdentityHashCode(Int32) Inherited from Object
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) Inherited from Object
IJavaPeerable.SetPeerReference(JniObjectReference) IJavaPeerable.SetPeerReference(JniObjectReference) Inherited from Object

Extension Methods

JavaCast<TResult>(IJavaObject) JavaCast<TResult>(IJavaObject)

Performs an Android runtime-checked type conversion.

JavaCast<TResult>(IJavaObject) JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable) GetJniTypeName(IJavaPeerable)

Applies to