ImageDecoder.CreateSource Method

Definition

Namespace:: Android.Graphics

Assembly:: Mono.Android.dll

Important

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Overloads

Name	Description
CreateSource(Byte[], Int32, Int32)	Create a new `Source` from a byte array region.
CreateSource(Resources, Int32)	Create a new `Source` from a resource.
CreateSource(AssetManager, String)	Create a new `Source` from a file in the assets directory.
CreateSource(ContentResolver, Uri)	Create a new `Source` from a `android.net.Uri`.
CreateSource(ICallable)	Create a new `Source` from a callable that returns an `AssetFileDescriptor`.
CreateSource(ByteBuffer)	Create a new `Source` from a `ByteBuffer`.
CreateSource(File)	Create a new `Source` from a file.
CreateSource(Byte[])	Create a new `Source` from a byte array.

CreateSource(Byte[], Int32, Int32)

Create a new Source from a byte array region.

[Android.Runtime.Register("createSource", "([BII)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=31)]
public static Android.Graphics.ImageDecoder.Source CreateSource(byte[] data, int offset, int length);

[<Android.Runtime.Register("createSource", "([BII)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=31)>]
static member CreateSource : byte[] * int * int -> Android.Graphics.ImageDecoder.Source

Parameters

data: Byte[]

byte array of compressed image data. This value cannot be null.

offset: Int32

offset into data for where the decoder should begin parsing.

length: Int32

number of bytes, beginning at offset, to parse.

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a byte array.

Note: If this Source is passed to decodeDrawable, and the encoded image is animated, the returned AnimatedImageDrawable will continue reading from data, so its contents must not be modified, even after the AnimatedImageDrawable is returned. data's contents should never be modified during decode.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

CreateSource(Resources, Int32)

Create a new Source from a resource.

[Android.Runtime.Register("createSource", "(Landroid/content/res/Resources;I)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)]
public static Android.Graphics.ImageDecoder.Source CreateSource(Android.Content.Res.Resources res, int resId);

[<Android.Runtime.Register("createSource", "(Landroid/content/res/Resources;I)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)>]
static member CreateSource : Android.Content.Res.Resources * int -> Android.Graphics.ImageDecoder.Source

Parameters

res: Resources

the Resources object containing the image data. This value cannot be null.

resId: Int32

resource ID of the image data.

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a resource. This method is safe to call from any thread.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

CreateSource(AssetManager, String)

Create a new Source from a file in the assets directory.

[Android.Runtime.Register("createSource", "(Landroid/content/res/AssetManager;Ljava/lang/String;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)]
public static Android.Graphics.ImageDecoder.Source CreateSource(Android.Content.Res.AssetManager assets, string fileName);

[<Android.Runtime.Register("createSource", "(Landroid/content/res/AssetManager;Ljava/lang/String;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)>]
static member CreateSource : Android.Content.Res.AssetManager * string -> Android.Graphics.ImageDecoder.Source

Parameters

assets: AssetManager

fileName: String

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a file in the "assets" directory. This method is safe to call from any thread.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

CreateSource(ContentResolver, Uri)

Create a new Source from a android.net.Uri.

[Android.Runtime.Register("createSource", "(Landroid/content/ContentResolver;Landroid/net/Uri;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)]
public static Android.Graphics.ImageDecoder.Source CreateSource(Android.Content.ContentResolver cr, Android.Net.Uri uri);

[<Android.Runtime.Register("createSource", "(Landroid/content/ContentResolver;Landroid/net/Uri;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)>]
static member CreateSource : Android.Content.ContentResolver * Android.Net.Uri -> Android.Graphics.ImageDecoder.Source

Parameters

cr: ContentResolver

to retrieve from.

uri: Uri

of the image file.

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a Uri. Accepts the following URI schemes: content (ContentResolver.SCHEME_CONTENT); android.resource (ContentResolver.SCHEME_ANDROID_RESOURCE); file (ContentResolver.SCHEME_FILE). This method is safe to call from any thread.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

CreateSource(ICallable)

Create a new Source from a callable that returns an AssetFileDescriptor.

[Android.Runtime.Register("createSource", "(Ljava/util/concurrent/Callable;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=29)]
public static Android.Graphics.ImageDecoder.Source CreateSource(Java.Util.Concurrent.ICallable callable);

[<Android.Runtime.Register("createSource", "(Ljava/util/concurrent/Callable;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=29)>]
static member CreateSource : Java.Util.Concurrent.ICallable -> Android.Graphics.ImageDecoder.Source

Parameters

callable: ICallable

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a Callable that returns a new AssetFileDescriptor for each request. This provides control over how the AssetFileDescriptor is created, such as passing options into ContentResolver.openTypedAssetFileDescriptor, or enabling use of a CancellationSignal.

It's important for the given Callable to return a new, unique AssetFileDescriptor for each invocation, to support reuse of the returned Source. This method is safe to call from any thread.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

CreateSource(ByteBuffer)

Create a new Source from a ByteBuffer.

[Android.Runtime.Register("createSource", "(Ljava/nio/ByteBuffer;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)]
public static Android.Graphics.ImageDecoder.Source CreateSource(Java.Nio.ByteBuffer buffer);

[<Android.Runtime.Register("createSource", "(Ljava/nio/ByteBuffer;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)>]
static member CreateSource : Java.Nio.ByteBuffer -> Android.Graphics.ImageDecoder.Source

Parameters

buffer: ByteBuffer

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a ByteBuffer.

Decoding will start from buffer.position(). The position of buffer will not be affected.

Note: If this Source is passed to decodeDrawable, and the encoded image is animated, the returned AnimatedImageDrawable will continue reading from the buffer, so its contents must not be modified, even after the AnimatedImageDrawable is returned. buffer's contents should never be modified during decode.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

CreateSource(File)

Create a new Source from a file.

[Android.Runtime.Register("createSource", "(Ljava/io/File;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)]
public static Android.Graphics.ImageDecoder.Source CreateSource(Java.IO.File file);

[<Android.Runtime.Register("createSource", "(Ljava/io/File;)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=28)>]
static member CreateSource : Java.IO.File -> Android.Graphics.ImageDecoder.Source

Parameters

file: File

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a File.

This method should only be used for files that you have direct access to; if you'd like to work with files hosted outside your app, use an API like createSource(Callable) or createSource(ContentResolver,Uri). This method is safe to call from any thread.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

CreateSource(Byte[])

Create a new Source from a byte array.

[Android.Runtime.Register("createSource", "([B)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=31)]
public static Android.Graphics.ImageDecoder.Source CreateSource(byte[] data);

[<Android.Runtime.Register("createSource", "([B)Landroid/graphics/ImageDecoder$Source;", "", ApiSince=31)>]
static member CreateSource : byte[] -> Android.Graphics.ImageDecoder.Source

Parameters

data: Byte[]

byte array of compressed image data. This value cannot be null.

Returns

ImageDecoder.Source

a new Source object, which can be passed to #decodeDrawable or #decodeBitmap.

Attributes: RegisterAttribute

Remarks

Create a new Source from a byte array.

Android reference for android.graphics.ImageDecoder.createSource.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to