How to get Thumbnail in Android API 29

Question

Trying to get thumbnails from a video. Prior to API 29, this was managed using MediaStore.Images.Thumbnails. Code example

Bitmap bitmapThumbnail = ThumbnailUtils.createVideoThumbnail(videoArrayList.get(position).getPath(), MediaStore.Images.Thumbnails.MINI_KIND);

But in API 29 MediaStore.Images.Thumbnails is declared deprecated. Google offers ContentResolver # loadThumbnail. Tell me how to use it.

Answer 1

createVideoThumbnail was changed from:

public static Bitmap createVideoThumbnail (String filePath, int kind)

to

public static Bitmap createVideoThumbnail (File file, Size size, CancellationSignal signal)

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So, the example you have provided in your question, will change to the following:

Size mSize = new Size(96,96);
CancellationSignal ca = new CancellationSignal();
Bitmap bitmapThumbnail = ThumbnailUtils.createVideoThumbnail(new File(videoArrayList.get(position).getPath()), mSize, ca);

You can use CancellationSignal to cancel the creation of the Bitmap by calling ca.cancel();.

The Size value depends on the size of Bitmap you want:

Size: The target area on the screen where this thumbnail will be shown. This is passed to the provider as EXTRA_SIZE to help it avoid downloading or generating heavy resources. This value cannot be null.

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You can also use loadThumbnail, which accepts a Uri instead of a File object, like this:

public Bitmap loadThumbnail (Uri uri, Size size, CancellationSignal signal)

So your code will then look like this:

Uri mUri = ...; // Your Uri
Size mSize = new Size(96,96);
CancellationSignal ca = new CancellationSignal();
Bitmap bitmapThumbnail = getContentResolver().loadThumbnail(mUri, mSize, ca);

Answer 2

//You can use this 
val bitmapThumbnail = ThumbnailUtils.createVideoThumbnail(
            File(filePath),
            Size(120, 120),
            null)