com.nostra13.universalimageloader.cache.disc.impl

类 LimitedAgeDiskCache

java.lang.Object

com.nostra13.universalimageloader.cache.disc.impl.BaseDiskCache

com.nostra13.universalimageloader.cache.disc.impl.LimitedAgeDiskCache

所有已实现的接口:

DiskCache

public class LimitedAgeDiskCache
extends BaseDiskCache

Cache which deletes files which were loaded more than defined time. Cache size is unlimited.

从以下版本开始:

1.3.1

字段概要

从类继承的字段 com.nostra13.universalimageloader.cache.disc.impl.BaseDiskCache

bufferSize, cacheDir, compressFormat, compressQuality, DEFAULT_BUFFER_SIZE, DEFAULT_COMPRESS_FORMAT, DEFAULT_COMPRESS_QUALITY, fileNameGenerator, reserveCacheDir

构造器概要

构造器

构造器和说明
LimitedAgeDiskCache(File cacheDir, File reserveCacheDir, FileNameGenerator fileNameGenerator, long maxAge)
LimitedAgeDiskCache(File cacheDir, File reserveCacheDir, long maxAge)
LimitedAgeDiskCache(File cacheDir, long maxAge)

方法概要

限定符和类型	方法和说明
void	clear() Clears disk cache.
File	get(String imageUri) Returns file of cached image
boolean	remove(String imageUri) Removes image file associated with incoming URI
boolean	save(String imageUri, android.graphics.Bitmap bitmap) Saves image bitmap in disk cache.
boolean	save(String imageUri, InputStream imageStream, IoUtils.CopyListener listener) Saves image stream in disk cache.

从类继承的方法 com.nostra13.universalimageloader.cache.disc.impl.BaseDiskCache

close, getDirectory, getFile, setBufferSize, setCompressFormat, setCompressQuality

从类继承的方法 java.lang.Object

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

构造器详细资料

LimitedAgeDiskCache

public LimitedAgeDiskCache(File cacheDir,
                           long maxAge)

参数:

cacheDir - Directory for file caching

maxAge - Max file age (in seconds). If file age will exceed this value then it'll be removed on next treatment (and therefore be reloaded).

LimitedAgeDiskCache

public LimitedAgeDiskCache(File cacheDir,
                           File reserveCacheDir,
                           long maxAge)

参数:

cacheDir - Directory for file caching

maxAge - Max file age (in seconds). If file age will exceed this value then it'll be removed on next treatment (and therefore be reloaded).

LimitedAgeDiskCache

public LimitedAgeDiskCache(File cacheDir,
                           File reserveCacheDir,
                           FileNameGenerator fileNameGenerator,
                           long maxAge)

参数:

cacheDir - Directory for file caching

reserveCacheDir - null-ok; Reserve directory for file caching. It's used when the primary directory isn't available.

fileNameGenerator - Name generator for cached files

maxAge - Max file age (in seconds). If file age will exceed this value then it'll be removed on next treatment (and therefore be reloaded).

方法详细资料

get

public File get(String imageUri)

从接口复制的说明: DiskCache

Returns file of cached image

指定者:

get 在接口中 DiskCache

覆盖:

get 在类中 BaseDiskCache

参数:

imageUri - Original image URI

返回:

File of cached image or null if image wasn't cached

save

public boolean save(String imageUri,
                    InputStream imageStream,
                    IoUtils.CopyListener listener)
             throws IOException

从接口复制的说明: DiskCache

Saves image stream in disk cache. Incoming image stream shouldn't be closed in this method.

指定者:

save 在接口中 DiskCache

覆盖:

save 在类中 BaseDiskCache

参数:

imageUri - Original image URI

imageStream - Input stream of image (shouldn't be closed in this method)

listener - Listener for saving progress, can be ignored if you don't use progress listener in ImageLoader calls

返回:

true - if image was saved successfully; false - if image wasn't saved in disk cache.

抛出:

IOException

save

public boolean save(String imageUri,
                    android.graphics.Bitmap bitmap)
             throws IOException

从接口复制的说明: DiskCache

Saves image bitmap in disk cache.

指定者:

save 在接口中 DiskCache

覆盖:

save 在类中 BaseDiskCache

参数:

imageUri - Original image URI

bitmap - Image bitmap

返回:

true - if bitmap was saved successfully; false - if bitmap wasn't saved in disk cache.

抛出:

IOException

remove

public boolean remove(String imageUri)

从接口复制的说明: DiskCache

Removes image file associated with incoming URI

指定者:

remove 在接口中 DiskCache

覆盖:

remove 在类中 BaseDiskCache

参数:

imageUri - Image URI

返回:

true - if image file is deleted successfully; false - if image file doesn't exist for incoming URI or image file can't be deleted.

clear

public void clear()

从接口复制的说明: DiskCache

Clears disk cache.

指定者:

clear 在接口中 DiskCache

覆盖:

clear 在类中 BaseDiskCache