LoaderManager Class
Definition
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
- Attributes
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 |
| 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 |
| 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) | |