DownloadManager Class

Definition

Namespace:: Android.App

Assembly:: Mono.Android.dll

Important

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The download manager is a system service that handles long-running HTTP downloads.

[Android.Runtime.Register("android/app/DownloadManager", DoNotGenerateAcw=true)]
public class DownloadManager : Java.Lang.Object

[<Android.Runtime.Register("android/app/DownloadManager", DoNotGenerateAcw=true)>]
type DownloadManager = class
    inherit Object

Inheritance: Object

JavaObject

Object
DownloadManager

Attributes: RegisterAttribute

Remarks

The download manager is a system service that handles long-running HTTP downloads. Clients may request that a URI be downloaded to a particular destination file. The download manager will conduct the download in the background, taking care of HTTP interactions and retrying downloads after failures or across connectivity changes and system reboots. Apps that request downloads through this API should register a broadcast receiver for ACTION_NOTIFICATION_CLICKED to appropriately handle when the user clicks on a running download in a notification or from the downloads UI. Note that the application must have the Manifest.permission.INTERNET permission to use this class.

Android reference for android.app.DownloadManager.

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
DownloadManager(IntPtr, JniHandleOwnership)	Initializes a managed representation of an existing Java Native Interface object.

Fields

Name	Description
ActionDownloadComplete	Broadcast intent action sent by the download manager when a download completes.
ActionNotificationClicked	Broadcast intent action sent by the download manager when the user clicks on a running download, either from a system notification or from the downloads UI.
ActionViewDownloads	Intent action to launch an activity to display all downloads.
ColumnBytesDownloadedSoFar	Number of bytes download so far.
ColumnDescription	The client-supplied description of this download.
ColumnId	An identifier for a particular download, unique across the system.
ColumnLastModifiedTimestamp	Timestamp when the download was last modified, in `System#currentTimeMillis System.currentTimeMillis()` (wall clock time in UTC).
ColumnLocalFilename	Obsolete. Path to the downloaded file on disk.
ColumnLocalUri	Uri where downloaded file will be stored.
ColumnMediaproviderUri	The URI to the corresponding entry in MediaProvider for this downloaded entry.
ColumnMediaType	Internet Media Type of the downloaded file.
ColumnReason	Provides more detail on the status of the download.
ColumnStatus	Current status of the download, as one of the STATUS_* constants.
ColumnTitle	The client-supplied title for this download.
ColumnTotalSizeBytes	Total size of the download in bytes.
ColumnUri	URI to be downloaded.
ErrorCannotResume	Obsolete. Value of `#COLUMN_REASON` when some possibly transient error occurred but we can't resume the download.
ErrorDeviceNotFound	Obsolete. Value of `#COLUMN_REASON` when no external storage device was found.
ErrorFileAlreadyExists	Obsolete. Value of `#COLUMN_REASON` when the requested destination file already exists (the download manager will not overwrite an existing file).
ErrorFileError	Obsolete. Value of `#COLUMN_REASON` when a storage issue arises which doesn't fit under any other error code.
ErrorHttpDataError	Obsolete. Value of `#COLUMN_REASON` when an error receiving or processing data occurred at the HTTP level.
ErrorInsufficientSpace	Obsolete. Value of `#COLUMN_REASON` when there was insufficient storage space.
ErrorTooManyRedirects	Obsolete. Value of `#COLUMN_REASON` when there were too many redirects.
ErrorUnhandledHttpCode	Obsolete. Value of `#COLUMN_REASON` when an HTTP code was received that download manager can't handle.
ErrorUnknown	Obsolete. Value of COLUMN_ERROR_CODE when the download has completed with an error that doesn't fit under any other error code.
ExtraDownloadId	Intent extra included with `#ACTION_DOWNLOAD_COMPLETE` intents, indicating the ID (as a long) of the download that just completed.
ExtraNotificationClickDownloadIds	When clicks on multiple notifications are received, the following provides an array of download ids corresponding to the download notification that was clicked.
IntentExtrasSortBySize	Intent extra included with `#ACTION_VIEW_DOWNLOADS` to start DownloadApp in sort-by-size mode.
PausedQueuedForWifi	Obsolete. Value of `#COLUMN_REASON` when the download exceeds a size limit for downloads over the mobile network and the download manager is waiting for a Wi-Fi connection to proceed.
PausedUnknown	Obsolete. Value of `#COLUMN_REASON` when the download is paused for some other reason.
PausedWaitingForNetwork	Obsolete. Value of `#COLUMN_REASON` when the download is waiting for network connectivity to proceed.
PausedWaitingToRetry	Obsolete. Value of `#COLUMN_REASON` when the download is paused because some network error occurred and the download manager is waiting before retrying the request.
StatusFailed	Obsolete. Value of `#COLUMN_STATUS` when the download has failed (and will not be retried).
StatusPaused	Obsolete. Value of `#COLUMN_STATUS` when the download is waiting to retry or resume.
StatusPending	Obsolete. Value of `#COLUMN_STATUS` when the download is waiting to start.
StatusRunning	Obsolete. Value of `#COLUMN_STATUS` when the download is currently running.
StatusSuccessful	Obsolete. Value of `#COLUMN_STATUS` when the download has successfully completed.

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)
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 binding infrastructure for Android.App.DownloadManager.
PeerReference	Gets the JNI object reference for this Java peer. (Inherited from Object)
ThresholdClass	Provides JNI binding infrastructure for Android.App.DownloadManager.
ThresholdType	Provides JNI binding infrastructure for Android.App.DownloadManager.

Methods

Name	Description
AddCompletedDownload(String, String, Boolean, String, String, Int64, Boolean, Uri, Uri)	Adds a file to the downloads database system, so it could appear in Downloads App (and thus become eligible for management by the Downloads App).
AddCompletedDownload(String, String, Boolean, String, String, Int64, Boolean)	Adds a file to the downloads database system, so it could appear in Downloads App (and thus become eligible for management by the Downloads App).
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)
Enqueue(DownloadManager+Request)	Enqueue a new download.
Equals(Object)	(Inherited from JavaObject)
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
FromContext(Context)
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
GetMaxBytesOverMobile(Context)	Returns maximum size, in bytes, of downloads that may go over a mobile connection; or null if there's no limit
GetMimeTypeForDownloadedFile(Int64)	Returns the media type of the given downloaded file id, if the file was downloaded successfully.
GetRecommendedMaxBytesOverMobile(Context)	Returns recommended maximum size, in bytes, of downloads that may go over a mobile connection; or null if there's no recommended limit.
GetUriForDownloadedFile(Int64)	Returns the `Uri` of the given downloaded file id, if the file is downloaded successfully.
InvokeQuery(DownloadManager+Query)	Query the download manager about downloads that have been requested.
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)
OpenDownloadedFile(Int64)	Open a downloaded file for reading.
Remove(Int64[])	Cancel downloads and remove them from the download manager.
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