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Firsto/grayscale_imageview.java

Forked from nisrulz/grayscale_imageview.java
Created November 6, 2017 12:03
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Apply grayscale filter to ImageView in android
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grayscale_imageview.java
ImageView imgview = (ImageView)findViewById(R.id.imageView_grayscale);
imgview.setImageBitmap(bitmap);
// Apply grayscale filter
ColorMatrix matrix = new ColorMatrix();
matrix.setSaturation(0);
ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix);
imgview.setColorFilter(filter);
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