CODEWITHSUNDEEP
androidimagexamarin.androidstreamreader
user1400995
user1400995

Reputation:

Xamarin Android System.Drawing.Image alternative

Ideally would like to do something like

AssetManager assets = this.Assets;
using (StreamReader sr = new StreamReader(assets.Open("test.png")))
{
    var img = System.Drawing.Image.FromStream(sr.BaseStream);          
}

but System.Drawing.Image class does not exist with Xamarin Android. How can I achieve the above?

Upvotes: 2

Views: 1643

Answers (1)

user1400995
user1400995

Reputation:

I have found an alternative to overcome the missing System.Drawing.Image.

I have used the following:

using (StreamReader sr = new StreamReader(assets.Open("test.png")))
{
    BinaryReader binreader = new BinaryReader(sr.BaseStream);
    var allData = ReadAllBytes(binreader);
    Bitmap bitmap = BitmapFactory.DecodeByteArray(allData, 0, allData.Length);
    imageView.SetImageBitmap(bitmap);
}

and

public static byte[] ReadAllBytes(BinaryReader reader)
{
    const int bufferSize = 4096;
    using (var ms = new MemoryStream())
    {
       byte[] buffer = new byte[bufferSize];
       int count;
       while ((count = reader.Read(buffer, 0, buffer.Length)) != 0)
             ms.Write(buffer, 0, count);
       return ms.ToArray();
    }
}

Upvotes: 3

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