How to modify down-sampled bitmap with Fresco Android?

Question

I want to display image from internet with blur effect.

I configured Fresco:

ImagePipelineConfig config = ImagePipelineConfig.newBuilder(this)
.setDownsampleEnabled(true)
.build();
Fresco.initialize(this, config);

Load and display image:

Postprocessor postProcessor = new BasePostprocessor() {
        @Override
        public void process(Bitmap bitmap) {
            super.process(bitmap);
            blurImage(bitmap);
        }
    };
ImageRequest request = ImageRequestBuilder.newBuilderWithSource(imageUri)
                    .setPostprocessor(postProcessor)
                    .build();

PipelineDraweeController controller 
= (PipelineDraweeController)Fresco.newDraweeControllerBuilder()
                            .setImageRequest(request)
                            .setOldController(simpleDrawee.getController())
                            .build();
simpleDrawee.setController(controller);

The problem is the bitmap I got is full resolution bitmap instead of down-sampled bitmap, this make blurImage() runs too slow.

Please help me to modify the down-sampled bitmap.

Answer 1

You need to specify ResizeOptions as explained in the documentation.