Added in API level 28

ImageDecoder.OnHeaderDecodedListener

Kotlin |Java

public static interface ImageDecoder.OnHeaderDecodedListener

android.graphics.ImageDecoder.OnHeaderDecodedListener

Interface for changing the default settings of a decode.

Supply an instance to decodeDrawable or decodeBitmap, which will call onHeaderDecoded (in the same thread) once the size is known. The implementation of onHeaderDecoded can then change the decode settings as desired.

Summary

Public methods
`abstract void`	`onHeaderDecoded(ImageDecoder decoder, ImageDecoder.ImageInfo info, ImageDecoder.Source source)` Called by `ImageDecoder` when the header has been decoded and the image size is known.

Public methods

onHeaderDecoded

Added in API level 28

public abstract void onHeaderDecoded (ImageDecoder decoder, 
                ImageDecoder.ImageInfo info, 
                ImageDecoder.Source source)

Called by ImageDecoder when the header has been decoded and the image size is known.

Parameters
`decoder`	`ImageDecoder`: the object performing the decode, for changing its default settings. This value cannot be `null`.
`info`	`ImageDecoder.ImageInfo`: information about the encoded image. This value cannot be `null`.
`source`	`ImageDecoder.Source`: object that created `decoder`. This value cannot be `null`.