net.donky.core.messaging.ui.cache

Class CursorAdapterWithImageCache

java.lang.Object

android.widget.BaseAdapter

android.widget.CursorAdapter

net.donky.core.messaging.ui.cache.CursorAdapterWithImageCache

All Implemented Interfaces:

android.widget.Adapter, android.widget.Filterable, android.widget.ListAdapter, android.widget.SpinnerAdapter, android.widget.ThemedSpinnerAdapter

public abstract class CursorAdapterWithImageCache
extends android.widget.CursorAdapter

Cursor Adapter that loads images and stores them in disk and memory cache. Created by Marcin Swierczek 16/06/2015. Copyright (C) Donky Networks Ltd. All rights reserved.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DISK_CACHE_UNIQUE_NAME_USER_AVATARS

Fields inherited from class android.widget.CursorAdapter

FLAG_AUTO_REQUERY, FLAG_REGISTER_CONTENT_OBSERVER

Fields inherited from interface android.widget.Adapter

IGNORE_ITEM_VIEW_TYPE, NO_SELECTION

Constructor Summary

Constructors

Constructor and Description
CursorAdapterWithImageCache(android.content.Context context, android.database.Cursor c, int flags, java.lang.String diskCacheUniqueName, int avatarSizeInDP)

Method Summary

Modifier and Type	Method and Description
void	addBitmapToDiskCache(java.lang.String key, android.graphics.Bitmap bitmap) Save bitmap to disk cache.
void	addBitmapToMemoryCache(java.lang.String key, android.graphics.Bitmap bitmap) Save bitmap to memory cache.
void	closeDiskCache() Close disk cache.
android.graphics.Bitmap	getBitmapFromDiskCache(java.lang.String key) Retrieve the bitmap from disk cache.
android.graphics.Bitmap	getBitmapFromMemCache(java.lang.String key) Retrieve the bitmap from memory cache.
void	loadAvatar(java.lang.String avatarAssetId, java.lang.ref.WeakReference<android.widget.ImageView> imageViewWeakReference) Load avatar image from the network.

Methods inherited from class android.widget.CursorAdapter

bindView, changeCursor, convertToString, getCount, getCursor, getDropDownView, getDropDownViewTheme, getFilter, getFilterQueryProvider, getItem, getItemId, getView, hasStableIds, init, newDropDownView, newView, onContentChanged, runQueryOnBackgroundThread, setDropDownViewTheme, setFilterQueryProvider, swapCursor

Methods inherited from class android.widget.BaseAdapter

areAllItemsEnabled, getItemViewType, getViewTypeCount, isEmpty, isEnabled, notifyDataSetChanged, notifyDataSetInvalidated, registerDataSetObserver, unregisterDataSetObserver

Methods inherited from class java.lang.Object

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

Methods inherited from interface android.widget.Adapter

getAutofillOptions, getItemViewType, getViewTypeCount, isEmpty, registerDataSetObserver, unregisterDataSetObserver

Field Detail

DISK_CACHE_UNIQUE_NAME_USER_AVATARS

public static final java.lang.String DISK_CACHE_UNIQUE_NAME_USER_AVATARS

See Also:

Constant Field Values

Constructor Detail

CursorAdapterWithImageCache

public CursorAdapterWithImageCache(android.content.Context context,
                                   android.database.Cursor c,
                                   int flags,
                                   java.lang.String diskCacheUniqueName,
                                   int avatarSizeInDP)

Method Detail

loadAvatar

public void loadAvatar(java.lang.String avatarAssetId,
                       java.lang.ref.WeakReference<android.widget.ImageView> imageViewWeakReference)

Load avatar image from the network.

Parameters:

avatarAssetId - Avatar ID on the network.

imageViewWeakReference - Weak reference to image to which the avatar should be loaded.

addBitmapToMemoryCache

public void addBitmapToMemoryCache(java.lang.String key,
                                   android.graphics.Bitmap bitmap)

Save bitmap to memory cache.

Parameters:

key - The unique id for the bitmap. Avatar id.

bitmap - Bitmap to save.

getBitmapFromMemCache

public android.graphics.Bitmap getBitmapFromMemCache(java.lang.String key)

Retrieve the bitmap from memory cache.

Parameters:

key - The unique id for the bitmap. Avatar id.

Returns:

Bitmap from memory cache.

addBitmapToDiskCache

public void addBitmapToDiskCache(java.lang.String key,
                                 android.graphics.Bitmap bitmap)

Save bitmap to disk cache.

Parameters:

key - The unique id for the bitmap. Avatar id.

bitmap - Bitmap to save.

getBitmapFromDiskCache

public android.graphics.Bitmap getBitmapFromDiskCache(java.lang.String key)

Retrieve the bitmap from disk cache.

Parameters:

key - The unique id for the bitmap. Avatar id.

Returns:

Bitmap from memory cache.

closeDiskCache

public void closeDiskCache()

Close disk cache. This method should be called before application will be closed.