com.bumptech.glide.request.target

Class BaseTarget<Z>

java.lang.Object

com.bumptech.glide.request.target.BaseTarget<Z>

Type Parameters:

Z - The type of resource that will be received by this target.

All Implemented Interfaces:

LifecycleListener, Target<Z>

Direct Known Subclasses:

SimpleTarget, ViewTarget

public abstract class BaseTarget<Z>
extends Object
implements Target<Z>

A base Target for loading Resources that provides basic or empty implementations for most methods.

For maximum efficiency, clear this target when you have finished using or displaying the Resource loaded into it using RequestManager.clear(Target).

For loading Resources into Views, ViewTarget or ImageViewTarget are preferable.

Field Summary

Fields inherited from interface com.bumptech.glide.request.target.Target

SIZE_ORIGINAL

Constructor Summary

Constructors

Constructor and Description
BaseTarget()

Method Summary

Modifier and Type	Method and Description
Request	getRequest() Retrieves the current request for this target, should not be called outside of Glide.
void	onDestroy() Callback for when Fragment.onDestroy()} or Activity.onDestroy() is called.
void	onLoadCleared(Drawable placeholder) A lifecycle callback that is called when a load is cancelled and its resources are freed.
void	onLoadFailed(Drawable errorDrawable) A lifecycle callback that is called when a load fails.
void	onLoadStarted(Drawable placeholder) A lifecycle callback that is called when a load is started.
void	onStart() Callback for when Fragment.onStart()} or Activity.onStart() is called.
void	onStop() Callback for when Fragment.onStop()} or Activity.onStop()} is called.
void	setRequest(Request request) Sets the current request for this target to retain, should not be called outside of Glide.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.bumptech.glide.request.target.Target

getSize, onResourceReady, removeCallback

Constructor Detail

BaseTarget

public BaseTarget()

Method Detail

setRequest

public void setRequest(@Nullable
                       Request request)

Description copied from interface: Target

Sets the current request for this target to retain, should not be called outside of Glide.

Specified by:

setRequest in interface Target<Z>

getRequest

@Nullable
public Request getRequest()

Description copied from interface: Target

Retrieves the current request for this target, should not be called outside of Glide.

Specified by:

getRequest in interface Target<Z>

onLoadCleared

public void onLoadCleared(@Nullable
                          Drawable placeholder)

Description copied from interface: Target

A lifecycle callback that is called when a load is cancelled and its resources are freed.

You must ensure that any current Drawable received in Target.onResourceReady(Object, Transition) is no longer displayed before redrawing the container (usually a View) or changing its visibility.

Specified by:

onLoadCleared in interface Target<Z>

Parameters:

placeholder - The placeholder drawable to optionally show, or null.

onLoadStarted

public void onLoadStarted(@Nullable
                          Drawable placeholder)

Description copied from interface: Target

A lifecycle callback that is called when a load is started.

Note - This may not be called for every load, it is possible for example for loads to fail before the load starts (when the model object is null).

Note - This method may be called multiple times before any other lifecycle method is called. Loads can be paused and restarted due to lifecycle or connectivity events and each restart may cause a call here.

You must ensure that any current Drawable received in Target.onResourceReady(Object, Transition) is no longer displayed before redrawing the container (usually a View) or changing its visibility.

Specified by:

onLoadStarted in interface Target<Z>

Parameters:

placeholder - The placeholder drawable to optionally show, or null.

onLoadFailed

public void onLoadFailed(@Nullable
                         Drawable errorDrawable)

Description copied from interface: Target

A lifecycle callback that is called when a load fails.

Note - This may be called before Target.onLoadStarted(android.graphics.drawable.Drawable) if the model object is null.

You must ensure that any current Drawable received in Target.onResourceReady(Object, Transition) is no longer displayed before redrawing the container (usually a View) or changing its visibility.

Specified by:

onLoadFailed in interface Target<Z>

Parameters:

errorDrawable - The error drawable to optionally show, or null.

onStart

public void onStart()

Description copied from interface: LifecycleListener

Callback for when Fragment.onStart()} or Activity.onStart() is called.

Specified by:

onStart in interface LifecycleListener

onStop

public void onStop()

Description copied from interface: LifecycleListener

Callback for when Fragment.onStop()} or Activity.onStop()} is called.

Specified by:

onStop in interface LifecycleListener

onDestroy

public void onDestroy()

Description copied from interface: LifecycleListener

Callback for when Fragment.onDestroy()} or Activity.onDestroy() is called.

Specified by:

onDestroy in interface LifecycleListener