How to apply different colour filters on an image in android?

Question

I can't figure out how can we apply filters over an image.

In this case I want the image to be darker (black, 40% transparency, layer on top of the image would give me the result I want). However, it will be helpful (in future) if I know how to put a layer over an image of any color (with some transparency) to make it more visually compatible with the other UI elements of the app.

How it looks now.

How I want it to look on the app (the above image has been edited in Adobe illustrator but the app repeatedly crashes if I use it even though its size is not large)

Also, I suspect there must be a way to do this in android studio without the need of any image editing software.

Correct me if I am wrong ;)

Answer 1

This is what i do ,

 imageView =(ImageView) findViewById(R.id.image_view) ;
 imageView.getDrawable().setColorFilter(0x76ffffff, PorterDuff.Mode.MULTIPLY );

color range [0x00000000 -0xffffffff]

If you don't understand the pattern this might help you

Red - 0xffff0000

green -0xff00ff00

blue - 0xff0000ff

your request average black color 0xff555555

change color codes as you want > here

out put

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Further more :

setColorFilter params : (int color, PorterDuff.Mode mode)

What does PorterDuff.Mode mean