com.android.volley.cache.plus

Class SimpleImageLoader

java.lang.Object

com.android.volley.cache.plus.ImageLoader

com.android.volley.cache.plus.SimpleImageLoader

public class SimpleImageLoader
extends ImageLoader

A class that wraps up remote image loading requests using the Volley library combined with a memory cache. An single instance of this class should be created once when your Activity or Fragment is created, then use get(String, android.widget.ImageView) or one of the variations to queue the image to be fetched and loaded from the network. Loading images in a ListView or GridView is also supported but you must store the Request in your ViewHolder type class and pass it into loadImage to ensure the request is canceled as views are recycled.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	SimpleImageLoader.ImageLoaderProvider Interface an activity can implement to provide an ImageLoader to its children fragments.

Nested classes/interfaces inherited from class com.android.volley.cache.plus.ImageLoader

ImageLoader.ImageContainer, ImageLoader.ImageListener

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.lang.String	CACHE_DIR

Constructor Summary

Constructors

Constructor and Description
SimpleImageLoader(FragmentActivity activity) Creates an ImageLoader with Bitmap memory cache.
SimpleImageLoader(FragmentActivity activity, DiskLruBasedCache.ImageCacheParams imageCacheParams) Creates an ImageLoader with Bitmap memory cache.
SimpleImageLoader(RequestQueue queue)
SimpleImageLoader(RequestQueue queue, ImageCache imageCache)
SimpleImageLoader(RequestQueue queue, ImageCache imageCache, android.content.res.Resources resources)

Method Summary

Methods

Modifier and Type	Method and Description
void	clearCache() Clears Cache.
void	closeCache() Closes Cache.
void	flushCache() Flushed Cache and clears ImageCache.
ImageLoader.ImageContainer	get(java.lang.String requestUrl, android.widget.ImageView imageView)
ImageLoader.ImageContainer	get(java.lang.String requestUrl, android.widget.ImageView imageView, android.graphics.drawable.Drawable placeHolder)
ImageLoader.ImageContainer	get(java.lang.String requestUrl, android.widget.ImageView imageView, android.graphics.drawable.Drawable placeHolder, int maxWidth, int maxHeight)
ImageLoader.ImageContainer	get(java.lang.String requestUrl, android.widget.ImageView imageView, int placeHolderIndex)
ImageLoader.ImageContainer	get(java.lang.String requestUrl, android.widget.ImageView imageView, int maxImageWidth, int maxImageHeight)
int	getMaxImageHeight()
int	getMaxImageWidth()
void	invalidate(java.lang.String key)
ImageLoader.ImageContainer	set(java.lang.String requestUrl, android.widget.ImageView imageView, android.graphics.Bitmap bitmap)
ImageLoader.ImageContainer	set(java.lang.String requestUrl, android.widget.ImageView imageView, android.graphics.drawable.Drawable placeHolder, android.graphics.Bitmap bitmap)
ImageLoader.ImageContainer	set(java.lang.String requestUrl, android.widget.ImageView imageView, android.graphics.drawable.Drawable placeHolder, int maxWidth, int maxHeight, android.graphics.Bitmap bitmap)
ImageLoader.ImageContainer	set(java.lang.String requestUrl, android.widget.ImageView imageView, int placeHolderIndex, android.graphics.Bitmap bitmap)
SimpleImageLoader	setDefaultDrawable(int defaultPlaceHolderResId) A default placeholder image while the image is being fetched and loaded.
SimpleImageLoader	setDefaultDrawables(java.util.ArrayList<android.graphics.drawable.Drawable> placeHolderDrawables) A default placeholder image while the image is being fetched and loaded.
SimpleImageLoader	setFadeInImage(boolean fadeInImage)
SimpleImageLoader	setMaxImageSize(int maxImageSize)
SimpleImageLoader	setMaxImageSize(int maxImageWidth, int maxImageHeight)
void	startProcessingQueue() Starts processing requests on the RequestQueue.
void	stopProcessingQueue() Stops processing requests on the RequestQueue.

Methods inherited from class com.android.volley.cache.plus.ImageLoader

get, get, getCache, getCacheKey, getContentResolver, getImageCache, getImageListener, getRequestQueue, getResources, isCached, makeImageRequest, onGetImageError, onGetImageSuccess, set, setBatchedResponseDelay, setHeaders, setImageSuccess, setResources, setResources

Methods inherited from class java.lang.Object

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

Field Detail

CACHE_DIR

protected static final java.lang.String CACHE_DIR

See Also:

Constant Field Values

Constructor Detail

SimpleImageLoader

public SimpleImageLoader(RequestQueue queue)

SimpleImageLoader

public SimpleImageLoader(RequestQueue queue,
                 ImageCache imageCache)

SimpleImageLoader

public SimpleImageLoader(RequestQueue queue,
                 ImageCache imageCache,
                 android.content.res.Resources resources)

SimpleImageLoader

public SimpleImageLoader(FragmentActivity activity)

Creates an ImageLoader with Bitmap memory cache.

Parameters:

activity -

SimpleImageLoader

public SimpleImageLoader(FragmentActivity activity,
                 DiskLruBasedCache.ImageCacheParams imageCacheParams)

Creates an ImageLoader with Bitmap memory cache.

Parameters:

activity -

imageCacheParams -

Method Detail

startProcessingQueue

public void startProcessingQueue()

Starts processing requests on the RequestQueue.

stopProcessingQueue

public void stopProcessingQueue()

Stops processing requests on the RequestQueue.

clearCache

public void clearCache()

Clears Cache.

flushCache

public void flushCache()

Flushed Cache and clears ImageCache.

closeCache

public void closeCache()

Closes Cache.

invalidate

public void invalidate(java.lang.String key)

setFadeInImage

public SimpleImageLoader setFadeInImage(boolean fadeInImage)

setMaxImageSize

public SimpleImageLoader setMaxImageSize(int maxImageWidth,
                                int maxImageHeight)

setMaxImageSize

public SimpleImageLoader setMaxImageSize(int maxImageSize)

setDefaultDrawable

public SimpleImageLoader setDefaultDrawable(int defaultPlaceHolderResId)

A default placeholder image while the image is being fetched and loaded.

Parameters:

defaultPlaceHolderResId -

Returns:

setDefaultDrawables

public SimpleImageLoader setDefaultDrawables(java.util.ArrayList<android.graphics.drawable.Drawable> placeHolderDrawables)

A default placeholder image while the image is being fetched and loaded.

Parameters:

placeHolderDrawables -

Returns:

getMaxImageWidth

public int getMaxImageWidth()

getMaxImageHeight

public int getMaxImageHeight()

get

public ImageLoader.ImageContainer get(java.lang.String requestUrl,
                             android.widget.ImageView imageView)

get

public ImageLoader.ImageContainer get(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             int maxImageWidth,
                             int maxImageHeight)

get

public ImageLoader.ImageContainer get(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             int placeHolderIndex)

get

public ImageLoader.ImageContainer get(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             android.graphics.drawable.Drawable placeHolder)

get

public ImageLoader.ImageContainer get(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             android.graphics.drawable.Drawable placeHolder,
                             int maxWidth,
                             int maxHeight)

set

public ImageLoader.ImageContainer set(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             android.graphics.Bitmap bitmap)

set

public ImageLoader.ImageContainer set(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             int placeHolderIndex,
                             android.graphics.Bitmap bitmap)

set

public ImageLoader.ImageContainer set(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             android.graphics.drawable.Drawable placeHolder,
                             android.graphics.Bitmap bitmap)

set

public ImageLoader.ImageContainer set(java.lang.String requestUrl,
                             android.widget.ImageView imageView,
                             android.graphics.drawable.Drawable placeHolder,
                             int maxWidth,
                             int maxHeight,
                             android.graphics.Bitmap bitmap)