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public interface Resource<Z>A resource interface that wraps a particular type so that it can be pooled and reused.
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Method Summary
Modifier and Type Method Description abstract Class<Z>getResourceClass()Returns the Class of the wrapped resource. abstract Zget()Returns an instance of the wrapped resource. abstract intgetSize()Returns the size in bytes of the wrapped resource to use to determine how much of the memorycache this resource uses. abstract voidrecycle()Cleans up and recycles internal resources. -
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Method Detail
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getResourceClass
@NonNull() abstract Class<Z> getResourceClass()
Returns the Class of the wrapped resource.
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get
@NonNull() abstract Z get()
Returns an instance of the wrapped resource.
Note - This does not have to be the same instance of the wrapped resource class and in factit 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.
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getSize
abstract int getSize()
Returns the size in bytes of the wrapped resource to use to determine how much of the memorycache this resource uses.
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recycle
abstract void recycle()
Cleans up and recycles internal resources.
It is only safe to call this method if there are no current resource consumers and if thismethod 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 consumerhave ever had access to this resource
- After all consumers have released this resource and it has been evicted from the cache
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