in.srain.cube.image.drawable

Class RecyclingBitmapDrawable

java.lang.Object

android.graphics.drawable.Drawable

android.graphics.drawable.BitmapDrawable

in.srain.cube.image.drawable.RecyclingBitmapDrawable

public class RecyclingBitmapDrawable
extends android.graphics.drawable.BitmapDrawable

A BitmapDrawable that keeps track of whether it is being displayed or cached.

When the drawable is no longer being displayed or cached, recycle() will be called on this drawable's bitmap.

Most of the code is taken from the Android best practice of displaying Bitmaps Displaying Bitmaps Efficiently.

Nested Class Summary

Nested classes/interfaces inherited from class android.graphics.drawable.Drawable

android.graphics.drawable.Drawable.Callback, android.graphics.drawable.Drawable.ConstantState

Constructor Summary

Constructors

Constructor and Description
RecyclingBitmapDrawable(android.content.res.Resources res, android.graphics.Bitmap bitmap)

Method Summary

Methods

Modifier and Type	Method and Description
void	setIsCached(boolean isCached) Notify the drawable that the cache state has changed.
void	setIsDisplayed(boolean isDisplayed) Notify the drawable that the displayed state has changed.

Methods inherited from class android.graphics.drawable.BitmapDrawable

draw, getAlpha, getBitmap, getChangingConfigurations, getConstantState, getGravity, getIntrinsicHeight, getIntrinsicWidth, getOpacity, getPaint, getTileModeX, getTileModeY, hasAntiAlias, hasMipMap, inflate, isAutoMirrored, mutate, onBoundsChange, setAlpha, setAntiAlias, setAutoMirrored, setColorFilter, setDither, setFilterBitmap, setGravity, setMipMap, setTargetDensity, setTargetDensity, setTargetDensity, setTileModeX, setTileModeXY, setTileModeY

Methods inherited from class android.graphics.drawable.Drawable

clearColorFilter, copyBounds, copyBounds, createFromPath, createFromResourceStream, createFromResourceStream, createFromStream, createFromXml, createFromXmlInner, getBounds, getCallback, getCurrent, getLevel, getMinimumHeight, getMinimumWidth, getPadding, getState, getTransparentRegion, invalidateSelf, isStateful, isVisible, jumpToCurrentState, onLevelChange, onStateChange, resolveOpacity, scheduleSelf, setBounds, setBounds, setCallback, setChangingConfigurations, setColorFilter, setLevel, setState, setVisible, unscheduleSelf

Methods inherited from class java.lang.Object

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

Constructor Detail

RecyclingBitmapDrawable

public RecyclingBitmapDrawable(android.content.res.Resources res,
                       android.graphics.Bitmap bitmap)

Method Detail

setIsDisplayed

public void setIsDisplayed(boolean isDisplayed)

Notify the drawable that the displayed state has changed. Internally a count is kept so that the drawable knows when it is no longer being displayed.

setIsCached

public void setIsCached(boolean isCached)

Notify the drawable that the cache state has changed. Internally a count is kept so that the drawable knows when it is no longer being cached.