how to use the LightingColorFilter to make the image form dark to light

Question

I want to add light of the image, I want to use LightingColorFilter

LightingColorFilter lcf = new LightingColorFilter( mul, add); 
imageView.set         


        

Answer 1

Canvas canvas= new Canvas(my_bitmap); // create canvas from bitmap
Paint my_paint = new Paint(); // create Paint from bitmap

my_paint.setColorFilter(new LightingColorFilter(0x77777777, 0x77777777));//(mul, add)

canvas.drawBitmap(my_bitmap, 0, 0, my_paint );

1- now you can show my_bitmap

2- now my_bitmap have about 50% more light

3- you can change (mul, add) to understand how work

4- also can use my_paint in other graphic method