deviceinfo.mayur.medialibrary.data

Class SparseArrayBitmapPool

java.lang.Object

deviceinfo.mayur.medialibrary.data.SparseArrayBitmapPool

public class SparseArrayBitmapPool
extends java.lang.Object

Bitmap pool backed by a sparse array indexing linked lists of bitmaps sharing the same width. Performance will degrade if using this to store many bitmaps with the same width but many different heights.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	SparseArrayBitmapPool.Node

Constructor Summary

Constructors

Constructor and Description
SparseArrayBitmapPool(int capacityBytes, <any> nodePool)

Method Summary

Modifier and Type	Method and Description
void	clear() Empty the pool, recycling all the bitmaps currently in it.
android.graphics.Bitmap	get(int width, int height)
int	getCapacity()
int	getSize()
boolean	put(android.graphics.Bitmap b) Adds the given bitmap to the pool.
void	setCapacity(int capacityBytes) Set the maximum capacity of the pool, and if necessary trim it down to size.

Methods inherited from class java.lang.Object

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

Constructor Detail

SparseArrayBitmapPool

public SparseArrayBitmapPool(int capacityBytes,
                             <any> nodePool)

Parameters:

capacityBytes - Maximum capacity of the pool in bytes.

nodePool - Shared pool to use for recycling linked list nodes, or null.

Method Detail

setCapacity

public void setCapacity(int capacityBytes)

Set the maximum capacity of the pool, and if necessary trim it down to size.

getCapacity

public int getCapacity()

Returns:

Capacity of the pool in bytes.

getSize

public int getSize()

Returns:

Total size in bytes of the bitmaps stored in the pool.

get

public android.graphics.Bitmap get(int width,
                                   int height)

Returns:

Bitmap from the pool with the desired height/width or null if none available.

put

public boolean put(android.graphics.Bitmap b)

Adds the given bitmap to the pool.

Returns:

Whether the bitmap was added to the pool.

clear

public void clear()

Empty the pool, recycling all the bitmaps currently in it.