io.rong.imkit.picture.widget.longimage

Class SubsamplingScaleImageView.DefaultOnImageEventListener

java.lang.Object

io.rong.imkit.picture.widget.longimage.SubsamplingScaleImageView.DefaultOnImageEventListener

All Implemented Interfaces:

SubsamplingScaleImageView.OnImageEventListener

Enclosing class:

SubsamplingScaleImageView

public static class SubsamplingScaleImageView.DefaultOnImageEventListener
extends java.lang.Object
implements SubsamplingScaleImageView.OnImageEventListener

Default implementation of SubsamplingScaleImageView.OnImageEventListener for extension. This does nothing in any method.

Constructor Summary

Constructors

Constructor and Description
DefaultOnImageEventListener()

Method Summary

Modifier and Type	Method and Description
void	onImageLoaded() Called when the full size image is ready.
void	onImageLoadError(java.lang.Exception e) Indicates an error initiliasing the decoder when using a tiling, or when loading the full size bitmap when tiling is disabled.
void	onPreviewLoadError(java.lang.Exception e) Called when a preview image could not be loaded.
void	onPreviewReleased() Called when a bitmap set using ImageSource.cachedBitmap is no longer being used by the View.
void	onReady() Called when the dimensions of the image and view are known, and either a preview image, the full size image, or base layer tiles are loaded.
void	onTileLoadError(java.lang.Exception e) Called when an image tile could not be loaded.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultOnImageEventListener

public DefaultOnImageEventListener()

Method Detail

onReady

public void onReady()

Description copied from interface: SubsamplingScaleImageView.OnImageEventListener

Called when the dimensions of the image and view are known, and either a preview image, the full size image, or base layer tiles are loaded. This indicates the scale and translate are known and the next draw will display an image. This event can be used to hide a loading graphic, or inform a subclass that it is safe to draw overlays.

Specified by:

onReady in interface SubsamplingScaleImageView.OnImageEventListener

onImageLoaded

public void onImageLoaded()

Description copied from interface: SubsamplingScaleImageView.OnImageEventListener

Called when the full size image is ready. When using tiling, this means the lowest resolution base layer of tiles are loaded, and when tiling is disabled, the image bitmap is loaded. This event could be used as a trigger to enable gestures if you wanted interaction disabled while only a preview is displayed, otherwise for most cases SubsamplingScaleImageView.OnImageEventListener.onReady() is the best event to listen to.

Specified by:

onImageLoaded in interface SubsamplingScaleImageView.OnImageEventListener

onPreviewLoadError

public void onPreviewLoadError(java.lang.Exception e)

Description copied from interface: SubsamplingScaleImageView.OnImageEventListener

Called when a preview image could not be loaded. This method cannot be relied upon; certain encoding types of supported image formats can result in corrupt or blank images being loaded and displayed with no detectable error. The view will continue to load the full size image.

Specified by:

onPreviewLoadError in interface SubsamplingScaleImageView.OnImageEventListener

Parameters:

e - The exception thrown. This error is logged by the view.

onImageLoadError

public void onImageLoadError(java.lang.Exception e)

Description copied from interface: SubsamplingScaleImageView.OnImageEventListener

Indicates an error initiliasing the decoder when using a tiling, or when loading the full size bitmap when tiling is disabled. This method cannot be relied upon; certain encoding types of supported image formats can result in corrupt or blank images being loaded and displayed with no detectable error.

Specified by:

onImageLoadError in interface SubsamplingScaleImageView.OnImageEventListener

Parameters:

e - The exception thrown. This error is also logged by the view.

onTileLoadError

public void onTileLoadError(java.lang.Exception e)

Description copied from interface: SubsamplingScaleImageView.OnImageEventListener

Called when an image tile could not be loaded. This method cannot be relied upon; certain encoding types of supported image formats can result in corrupt or blank images being loaded and displayed with no detectable error. Most cases where an unsupported file is used will result in an error caught by SubsamplingScaleImageView.OnImageEventListener.onImageLoadError(Exception).

Specified by:

onTileLoadError in interface SubsamplingScaleImageView.OnImageEventListener

Parameters:

e - The exception thrown. This error is logged by the view.

onPreviewReleased

public void onPreviewReleased()

Description copied from interface: SubsamplingScaleImageView.OnImageEventListener

Called when a bitmap set using ImageSource.cachedBitmap is no longer being used by the View. This is useful if you wish to manage the bitmap after the preview is shown

Specified by:

onPreviewReleased in interface SubsamplingScaleImageView.OnImageEventListener