Package com.bumptech.glide.request

Class SingleRequest<R>

java.lang.Object
com.bumptech.glide.request.SingleRequest<R>
Type Parameters:
R - The type of the resource that will be transcoded from the loaded resource.
All Implemented Interfaces:
Request, ResourceCallback, SizeReadyCallback
public final class SingleRequest<R> extends Object implements Request, SizeReadyCallback, ResourceCallback
A Request that loads a Resource into a given Target.

  • Method Details

    • obtain

      public static <R> SingleRequest<R> obtain(Context context, GlideContext glideContext, Object requestLock, Object model, Class<R> transcodeClass, BaseRequestOptions<?> requestOptions, int overrideWidth, int overrideHeight, Priority priority, Target<R> target, RequestListener<R> targetListener, @Nullable List<RequestListener<R>> requestListeners, RequestCoordinator requestCoordinator, Engine engine, TransitionFactory<? super R> animationFactory, Executor callbackExecutor)

    • begin

      public void begin()
      Description copied from interface: Request
      Starts an asynchronous load.
      Specified by:
      begin in interface Request

    • clear

      public void clear()
      Cancels the current load if it is in progress, clears any resources held onto by the request and replaces the loaded resource if the load completed with the placeholder.

      Cleared requests can be restarted with a subsequent call to begin()

      Specified by:
      clear in interface Request
      See Also:
      • cancel()

    • pause

      public void pause()
      Description copied from interface: Request
      Similar to Request.clear() for in progress requests (or portions of a request), but does nothing if the request is already complete.

      Unlike Request.clear(), this method allows implementations to act differently on subparts of a request. For example if a Request has both a thumbnail and a primary request and the thumbnail portion of the request is complete, this method allows only the primary portion of the request to be paused without clearing the previously completed thumbnail portion.

      Specified by:
      pause in interface Request

    • isRunning

      public boolean isRunning()
      Description copied from interface: Request
      Returns true if this request is running and has not completed or failed.
      Specified by:
      isRunning in interface Request

    • isComplete

      public boolean isComplete()
      Description copied from interface: Request
      Returns true if the request has completed successfully.
      Specified by:
      isComplete in interface Request

    • isCleared

      public boolean isCleared()
      Description copied from interface: Request
      Returns true if the request has been cleared.
      Specified by:
      isCleared in interface Request

    • isAnyResourceSet

      public boolean isAnyResourceSet()
      Description copied from interface: Request
      Returns true if a resource is set, even if the request is not yet complete or the primary request has failed.
      Specified by:
      isAnyResourceSet in interface Request

    • onSizeReady

      public void onSizeReady(int width, int height)
      A callback method that should never be invoked directly.
      Specified by:
      onSizeReady in interface SizeReadyCallback
      Parameters:
      width - The width in pixels of the target, or Target.SIZE_ORIGINAL to indicate that we want the resource at its original width.
      height - The height in pixels of the target, or Target.SIZE_ORIGINAL to indicate that we want the resource at its original height.

    • onResourceReady

      public void onResourceReady(Resource<?> resource, DataSource dataSource, boolean isLoadedFromAlternateCacheKey)
      A callback method that should never be invoked directly.
      Specified by:
      onResourceReady in interface ResourceCallback
      Parameters:
      resource - The loaded resource.

    • onLoadFailed

      public void onLoadFailed(GlideException e)
      A callback method that should never be invoked directly.
      Specified by:
      onLoadFailed in interface ResourceCallback
      Parameters:
      e - a non-null GlideException.

    • getLock

      public Object getLock()
      Description copied from interface: ResourceCallback
      Returns the lock to use when notifying individual requests.
      Specified by:
      getLock in interface ResourceCallback

    • isEquivalentTo

      public boolean isEquivalentTo(Request o)
      Description copied from interface: Request
      Returns true if this Request is equivalent to the given Request (has all of the same options and sizes).

      This method is identical to Object.equals(Object) except that it's specific to Request subclasses. We do not use Object.equals(Object) directly because we track Requests in collections like Set and it's perfectly legitimate to have two different Request objects for two different Targets (for example). Using a similar but different method let's us selectively compare Request objects to each other when it's useful in specific scenarios.

      Specified by:
      isEquivalentTo in interface Request

    • toString

      public String toString()
      Overrides:
      toString in class Object