CODEWITHSUNDEEP
androidxamarinxamarin.androidpicassoandroid-glide
MaxD
MaxD

Reputation: 51

Load resized bitmap into byte[] array

I have to send a downscaled bitmap to my database from Android (using Xamarin).

To do so, I read about Glide or Picasso. Glide seemed to be the best picture library so I've installed Glide-Xamarin 3.7.0.

But I don't get how to load an existing bitmap (from URI), downscale to specific[ish] resolution and save it into a byte[] array in order to send it with the Webservice I'm calling.

If anyone knows the recipe for that one, would be much appreciated.

Upvotes: 1

Views: 721

Answers (1)

MaxD
MaxD

Reputation: 51

Finally I did it with Picasso

var bitmap = Picasso
             .With(context)
             .Load(originalBitmapUri)
             .Resize(reqWidth, reqHeight)
             .CenterInside()
             .OnlyScaleDown()
             .Get();

This one-liner returns me a resized Bitmap, from which I can call CompressAsync(.) 

using (var stream = new MemoryStream())
{
    await bitmap.CompressAsync(Bitmap.CompressFormat.Jpeg, quality, stream);
    return stream.ToArray();
}

Upvotes: 1

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