com.nostra13.universalimageloader.cache.memory.impl

类 LruMemoryCache

java.lang.Object

com.nostra13.universalimageloader.cache.memory.impl.LruMemoryCache

所有已实现的接口:

MemoryCache

public class LruMemoryCache
extends Object
implements MemoryCache

A cache that holds strong references to a limited number of Bitmaps. Each time a Bitmap is accessed, it is moved to the head of a queue. When a Bitmap is added to a full cache, the Bitmap at the end of that queue is evicted and may become eligible for garbage collection.

NOTE: This cache uses only strong references for stored Bitmaps.

从以下版本开始:

1.8.1

构造器概要

构造器

构造器和说明
LruMemoryCache(int maxSize)

方法概要

限定符和类型	方法和说明
void	clear() Remove all items from cache
android.graphics.Bitmap	get(String key) Returns the Bitmap for key if it exists in the cache.
Collection<String>	keys() Returns all keys of cache
boolean	put(String key, android.graphics.Bitmap value) Caches Bitmap for key.
android.graphics.Bitmap	remove(String key) Removes the entry for key if it exists.
String	toString()

从类继承的方法 java.lang.Object

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

构造器详细资料

LruMemoryCache

public LruMemoryCache(int maxSize)

参数:

maxSize - Maximum sum of the sizes of the Bitmaps in this cache

方法详细资料

get

public final android.graphics.Bitmap get(String key)

Returns the Bitmap for key if it exists in the cache. If a Bitmap was returned, it is moved to the head of the queue. This returns null if a Bitmap is not cached.

指定者:

get 在接口中 MemoryCache

put

public final boolean put(String key,
                         android.graphics.Bitmap value)

Caches Bitmap for key. The Bitmap is moved to the head of the queue.

指定者:

put 在接口中 MemoryCache

返回:

true - if value was put into cache successfully, false - if value was not put into cache

remove

public final android.graphics.Bitmap remove(String key)

Removes the entry for key if it exists.

指定者:

remove 在接口中 MemoryCache

keys

public Collection<String> keys()

从接口复制的说明: MemoryCache

Returns all keys of cache

指定者:

keys 在接口中 MemoryCache

clear

public void clear()

从接口复制的说明: MemoryCache

Remove all items from cache

指定者:

clear 在接口中 MemoryCache

toString

public final String toString()

覆盖:

toString 在类中 Object