com.android.volley.cache

Class DiskLruBasedCache.ImageCacheParams

java.lang.Object

com.android.volley.cache.DiskLruBasedCache.ImageCacheParams

Enclosing class:

DiskLruBasedCache

public static class DiskLruBasedCache.ImageCacheParams
extends java.lang.Object

A holder class that contains cache parameters.

Field Summary

Fields

Modifier and Type	Field and Description
android.graphics.Bitmap.CompressFormat	compressFormat
int	compressQuality
java.io.File	diskCacheDir
boolean	diskCacheEnabled
int	diskCacheSize
boolean	initDiskCacheOnCreate
int	memCacheSize
boolean	memoryCacheEnabled

Constructor Summary

Constructors

Constructor and Description
DiskLruBasedCache.ImageCacheParams(android.content.Context context, java.lang.String rootDirectory) Create a set of image cache parameters
DiskLruBasedCache.ImageCacheParams(android.content.Context context, java.lang.String rootDirectory, int maxCacheSizeInBytes) Create a set of image cache parameters
DiskLruBasedCache.ImageCacheParams(java.io.File rootDirectory) Create a set of image cache parameters
DiskLruBasedCache.ImageCacheParams(java.io.File rootDirectory, int maxCacheSizeInBytes) Create a set of image cache parameters that can be provided to

Method Summary

Methods

Modifier and Type	Method and Description
void	setMemCacheSizePercent(float percent) Sets the memory cache size based on a percentage of the max available VM memory.

Methods inherited from class java.lang.Object

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

Field Detail

memCacheSize

public int memCacheSize

diskCacheSize

public int diskCacheSize

diskCacheDir

public java.io.File diskCacheDir

compressFormat

public android.graphics.Bitmap.CompressFormat compressFormat

compressQuality

public int compressQuality

memoryCacheEnabled

public boolean memoryCacheEnabled

diskCacheEnabled

public boolean diskCacheEnabled

initDiskCacheOnCreate

public boolean initDiskCacheOnCreate

Constructor Detail

DiskLruBasedCache.ImageCacheParams

public DiskLruBasedCache.ImageCacheParams(java.io.File rootDirectory,
                                  int maxCacheSizeInBytes)

Create a set of image cache parameters that can be provided to

Parameters:

maxCacheSizeInBytes - cache size in bytes.

DiskLruBasedCache.ImageCacheParams

public DiskLruBasedCache.ImageCacheParams(android.content.Context context,
                                  java.lang.String rootDirectory,
                                  int maxCacheSizeInBytes)

Create a set of image cache parameters

Parameters:

context - A context to use.

rootDirectory - A unique subdirectory name that will be appended to the application cache directory. Usually "cache" or "images" is sufficient.

maxCacheSizeInBytes - cache size in bytes.

DiskLruBasedCache.ImageCacheParams

public DiskLruBasedCache.ImageCacheParams(android.content.Context context,
                                  java.lang.String rootDirectory)

Create a set of image cache parameters

Parameters:

context - A context to use.

rootDirectory - A unique subdirectory name that will be appended to the application cache directory. Usually "cache" or "images" is sufficient.

DiskLruBasedCache.ImageCacheParams

public DiskLruBasedCache.ImageCacheParams(java.io.File rootDirectory)

Create a set of image cache parameters

Parameters:

rootDirectory - A unique subdirectory name that will be appended to the application cache directory. Usually "cache" or "images" is sufficient.

Method Detail

setMemCacheSizePercent

public void setMemCacheSizePercent(float percent)

Sets the memory cache size based on a percentage of the max available VM memory. Eg. setting percent to 0.2 would set the memory cache to one fifth of the available memory. Throws IllegalArgumentException if percent is < 0.01 or > .8. memCacheSize is stored in kilobytes instead of bytes as this will eventually be passed to construct a LruCache which takes an int in its constructor. This value should be chosen carefully based on a number of factors Refer to the corresponding Android Training class for more discussion: http://developer.android.com/training/displaying-bitmaps/

Parameters:

percent - Percent of available app memory to use to size memory cache