LoaderManager Class

Reference

Definition

Namespace:: Android.App

Assembly:: Mono.Android.dll

Important

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Interface associated with an Activity or Fragment for managing one or more android.content.Loader instances associated with it.

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

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

Inheritance: Object

Object
LoaderManager

Attributes: RegisterAttribute

Remarks

Interface associated with an Activity or Fragment for managing one or more android.content.Loader instances associated with it. This helps an application manage longer-running operations in conjunction with the Activity or Fragment lifecycle; the most common use of this is with a android.content.CursorLoader, however applications are free to write their own loaders for loading other types of data.

While the LoaderManager API was introduced in android.os.Build.VERSION_CODES#HONEYCOMB, a version of the API at is also available for use on older platforms through androidx.fragment.app.FragmentActivity. See the blog post Fragments For All for more details.

As an example, here is the full implementation of a Fragment that displays a android.widget.ListView containing the results of a query against the contacts content provider. It uses a android.content.CursorLoader to manage the query on the provider.

{

This member is deprecated. Use the Support Libraryandroidx.loader.app.LoaderManager

Java documentation for android.app.LoaderManager.

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

LoaderManager()
LoaderManager(IntPtr, JniHandleOwnership)	A constructor used when creating managed representations of JNI objects; called by the runtime.

Properties

Class	Returns the runtime class of this `Object`. (Inherited from Object)
Handle	The handle to the underlying Android instance. (Inherited from Object)
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
PeerReference	(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

Clone()	Creates and returns a copy of this object. (Inherited from Object)
DestroyLoader(Int32)	Stops and removes the loader with the given ID.
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
Dump(String, FileDescriptor, PrintWriter, String[])	Print the LoaderManager's state into the given stream.
EnableDebugLogging(Boolean)	Control whether the framework's internal loader manager debugging logs are turned on.
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
GetLoader(Int32)	Return the Loader with the given id or null if no matching Loader is found.
InitLoader(Int32, Bundle, LoaderManager+ILoaderCallbacks)	Ensures a loader is initialized and active.
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)
RestartLoader(Int32, Bundle, LoaderManager+ILoaderCallbacks)	Starts a new or restarts an existing `android.content.Loader` in this manager, registers the callbacks to it, and (if the activity/fragment is currently started) starts loading it.
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	(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

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

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)

Applies to

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