AsyncTask<TParams,TProgress,TResult> Class

Definition

Namespace:: Android.OS

Assembly:: Mono.Android.dll

Important

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Provides Android OS API values for AsyncTask<TParams,TProgress,TResult>.

[Android.Runtime.Register("android/os/AsyncTask", DoNotGenerateAcw=true)]
public abstract class AsyncTask<TParams,TProgress,TResult> : Android.OS.AsyncTask

[<Android.Runtime.Register("android/os/AsyncTask", DoNotGenerateAcw=true)>]
type AsyncTask<'Params, 'Progress, 'Result> = class
    inherit AsyncTask

Type Parameters

TParams

The TParams type parameter.

TProgress

The TProgress type parameter.

TResult

The TResult type parameter.

Inheritance: Object

JavaObject

Object

AsyncTask
AsyncTask<TParams,TProgress,TResult>

Attributes: RegisterAttribute

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

Name	Description
AsyncTask<TParams,TProgress,TResult>()	Creates a new asynchronous task.
AsyncTask<TParams,TProgress,TResult>(IntPtr, JniHandleOwnership)	A constructor used when creating managed representations of JNI objects; called by the runtime.

Properties

Name	Description
Class	Returns the runtime class of this `Object`. (Inherited from Object)
Handle	The handle to the underlying Android instance. (Inherited from Object)
IsCancelled	Returns `true` if this task was cancelled before it completed normally. (Inherited from AsyncTask)
JniIdentityHashCode	Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object)
JniManagedPeerState	(Inherited from JavaObject)
JniPeerMembers	Provides JNI peer-member metadata for this type. (Inherited from AsyncTask)
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.
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

Methods

Name	Description
Cancel(Boolean)	Attempts to cancel execution of this task. (Inherited from AsyncTask)
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)
DoInBackground(Object[])	Performs a computation on a background thread.
Equals(Object)	(Inherited from JavaObject)
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
Execute(Object[])	Executes the task with the specified parameters. (Inherited from AsyncTask)
Execute(TParams[])	Executes this task with the specified parameters.
ExecuteOnExecutor(IExecutor, Object[])	Executes the task with the specified parameters. (Inherited from AsyncTask)
Get()	Waits if necessary for the computation to complete, and then retrieves its result. (Inherited from AsyncTask)
Get(Int64, TimeUnit)	Waits if necessary for at most the given time for the computation to complete, and then retrieves its result. (Inherited from AsyncTask)
GetAsync()	Asynchronously performs the corresponding operation. (Inherited from AsyncTask)
GetAsync(Int64, TimeUnit)	Asynchronously performs the corresponding operation. (Inherited from AsyncTask)
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
GetResult()	Waits if necessary for the computation to complete, and then retrieves its result.
GetStatus()	Returns the current status of this task. (Inherited from AsyncTask)
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)
OnCancelled()	Applications should preferably override `#onCancelled(Object)`. (Inherited from AsyncTask)
OnCancelled(Object)	Runs on the UI thread after `#cancel(boolean)` is invoked and `#doInBackground(Object[])` has finished. (Inherited from AsyncTask)
OnPostExecute(Object)	Runs on the UI thread after the background computation finishes.
OnPostExecute(TResult)	Runs on the UI thread after doInBackground(Params) . The specified result is the value returned by doInBackground(Params) . To better support testing frameworks, it is recommended that this be written to tolerate direct execution as part of the execute() call. The default version does nothing. This method won't be invoked if the task was cancelled. . This method must be called from the main thread of your app.
OnPreExecute()	Runs on the UI thread before `#doInBackground`. (Inherited from AsyncTask)
OnProgressUpdate(Object[])	Runs on the UI thread after progress is published.
OnProgressUpdate(TProgress[])	Runs on the UI thread after publishProgress(Progress) is invoked. The specified values are the values passed to publishProgress(Progress) . The default version does nothing. This method must be called from the main thread of your app.
PublishProgress(Object[])	This method can be invoked from `#doInBackground` to publish updates on the UI thread while the background computation is still running. (Inherited from AsyncTask)
PublishProgress(TProgress[])	Publishes progress updates from the background computation.
RunInBackground(TParams[])	Override this method to perform a computation on a background thread. The specified parameters are the parameters passed to execute(Params) by the caller of this task.
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)

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)

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