com.bumptech.glide.load.resource.bitmap

Class LazyBitmapDrawableResource

java.lang.Object

com.bumptech.glide.load.resource.bitmap.LazyBitmapDrawableResource

All Implemented Interfaces:

Initializable, Resource<BitmapDrawable>

public class LazyBitmapDrawableResource
extends Object
implements Resource<BitmapDrawable>, Initializable

Lazily allocates a BitmapDrawable from a given Bitmap on the first call to get().

Method Summary

Modifier and Type	Method and Description
BitmapDrawable	get() Returns an instance of the wrapped resource.
Class<BitmapDrawable>	getResourceClass() Returns the Class of the wrapped resource.
int	getSize() Returns the size in bytes of the wrapped resource to use to determine how much of the memory cache this resource uses.
void	initialize() Called on a background thread so the Resource can do some eager initialization.
static LazyBitmapDrawableResource	obtain(Context context, Bitmap bitmap)
static LazyBitmapDrawableResource	obtain(Resources resources, BitmapPool bitmapPool, Bitmap bitmap)
void	recycle() Cleans up and recycles internal resources.

Methods inherited from class java.lang.Object

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

Method Detail

obtain

public static LazyBitmapDrawableResource obtain(Context context,
                                                Bitmap bitmap)

obtain

public static LazyBitmapDrawableResource obtain(Resources resources,
                                                BitmapPool bitmapPool,
                                                Bitmap bitmap)

getResourceClass

public Class<BitmapDrawable> getResourceClass()

Description copied from interface: Resource

Returns the Class of the wrapped resource.

Specified by:

getResourceClass in interface Resource<BitmapDrawable>

get

public BitmapDrawable get()

Description copied from interface: Resource

Returns an instance of the wrapped resource.

Note - This does not have to be the same instance of the wrapped resource class and in fact it is often appropriate to return a new instance for each call. For example, Drawables should only be used by a single View at a time so each call to this method for Resources that wrap Drawables should always return a new Drawable.

Specified by:

get in interface Resource<BitmapDrawable>

getSize

public int getSize()

Description copied from interface: Resource

Returns the size in bytes of the wrapped resource to use to determine how much of the memory cache this resource uses.

Specified by:

getSize in interface Resource<BitmapDrawable>

recycle

public void recycle()

Description copied from interface: Resource

Cleans up and recycles internal resources.

It is only safe to call this method if there are no current resource consumers and if this method has not yet been called. Typically this occurs at one of two times:

• During a resource load when the resource is transformed or transcoded before any consumer have ever had access to this resource
• After all consumers have released this resource and it has been evicted from the cache

For most users of this class, the only time this method should ever be called is during transformations or transcoders, the framework will call this method when all consumers have released this resource and it has been evicted from the cache.

Specified by:

recycle in interface Resource<BitmapDrawable>

initialize

public void initialize()

Description copied from interface: Initializable

Called on a background thread so the Resource can do some eager initialization.

Specified by:

initialize in interface Initializable