# ImageDecoder.Source

Added in[API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Summary:[Inherited Methods](https://developer.android.com/reference/android/graphics/ImageDecoder.Source#inhmethods)  

# ImageDecoder.Source

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[Kotlin](https://developer.android.com/reference/kotlin/android/graphics/ImageDecoder.Source "View this page in Kotlin")\|Java

`
public
static

abstract
class
ImageDecoder.Source
`  
`

extends `[Object](https://developer.android.com/reference/java/lang/Object)`


``


`

|---|--------------------------------------|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.graphics.ImageDecoder.Source |

<br />

*** ** * ** ***

Source of encoded image data.

References the data that will be used to decode a[Drawable](https://developer.android.com/reference/android/graphics/drawable/Drawable)or[Bitmap](https://developer.android.com/reference/android/graphics/Bitmap)in[decodeDrawable](https://developer.android.com/reference/android/graphics/ImageDecoder#decodeDrawable(android.graphics.ImageDecoder.Source))or[decodeBitmap](https://developer.android.com/reference/android/graphics/ImageDecoder#decodeBitmap(android.graphics.ImageDecoder.Source)). Constructing a`Source`(with one of the overloads of`createSource`) can be done on any thread because the construction simply captures values. The real work is done in[decodeDrawable](https://developer.android.com/reference/android/graphics/ImageDecoder#decodeDrawable(android.graphics.ImageDecoder.Source))or[decodeBitmap](https://developer.android.com/reference/android/graphics/ImageDecoder#decodeBitmap(android.graphics.ImageDecoder.Source)).

A`Source`object can be reused to create multiple versions of the same image. For example, to decode a full size image and its thumbnail, the same`Source`can be used once with no[OnHeaderDecodedListener](https://developer.android.com/reference/android/graphics/ImageDecoder.OnHeaderDecodedListener)and once with an implementation of[onHeaderDecoded](https://developer.android.com/reference/android/graphics/ImageDecoder.OnHeaderDecodedListener#onHeaderDecoded(android.graphics.ImageDecoder,%20android.graphics.ImageDecoder.ImageInfo,%20android.graphics.ImageDecoder.Source))that calls[ImageDecoder.setTargetSize(int, int)](https://developer.android.com/reference/android/graphics/ImageDecoder#setTargetSize(int,%20int))with smaller dimensions. One`Source`can even be used simultaneously in multiple threads.

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## Summary

| ### Inherited methods |
|-----------------------|---|
| From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object)          | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object.                                                                                                                                                      | | ` boolean`                                                                     | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one.                                           | | ` void`                                                                        | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.                                                          | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`<?>` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`.                                                                                                                                                | | ` int`                                                                         | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object.                                                                                                                                                 | | ` final void`                                                                  | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor.                                                                                                                            | | ` final void`                                                                  | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor.                                                                                                                         | | ` `[String](https://developer.android.com/reference/java/lang/String)          | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object.                                                                                                                                            | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed. | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*, or until a certain amount of real time has elapsed.                   | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*.                                                                                             | ||