DocumentsContract.GetDocumentThumbnail Method
Definition
Important
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Return thumbnail representing the document at the given URI.
[Android.Runtime.Register("getDocumentThumbnail", "(Landroid/content/ContentResolver;Landroid/net/Uri;Landroid/graphics/Point;Landroid/os/CancellationSignal;)Landroid/graphics/Bitmap;", "")]
public static Android.Graphics.Bitmap? GetDocumentThumbnail (Android.Content.ContentResolver content, Android.Net.Uri documentUri, Android.Graphics.Point size, Android.OS.CancellationSignal? signal);
[<Android.Runtime.Register("getDocumentThumbnail", "(Landroid/content/ContentResolver;Landroid/net/Uri;Landroid/graphics/Point;Landroid/os/CancellationSignal;)Landroid/graphics/Bitmap;", "")>]
static member GetDocumentThumbnail : Android.Content.ContentResolver * Android.Net.Uri * Android.Graphics.Point * Android.OS.CancellationSignal -> Android.Graphics.Bitmap
Parameters
- content
- ContentResolver
- documentUri
- Uri
document to return thumbnail for, which must have
Document#FLAG_SUPPORTS_THUMBNAIL
set.
- size
- Point
optimal thumbnail size desired. A provider may return a thumbnail of a different size, but never more than double the requested size.
- signal
- CancellationSignal
signal used to indicate if caller is no longer interested in the thumbnail.
Returns
decoded thumbnail, or null
if problem was encountered.
- Attributes
Remarks
Return thumbnail representing the document at the given URI. Callers are responsible for their own in-memory caching.
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
See also
- <xref:Android.Provider.DocumentsProvider.OpenDocumentThumbnail(System.String%2c+Android.Graphics.Point%2c+Android.Graphics.Point)>