Drawable change color - keep transparant background

Question

I have a drawable in my /res/drawable which looks like this:

How can I modify the drawable (code) so that I got a blue clock instead.

• only change the red pixels to blue
• background must be transparant (in icon.png the background is transparant too)

Answer 1

Try ImageView#setColorFilter

_myImgView.setColorFilter(Color.argb(255, 0, 0, 255)); // blue