android color between two colors, based on percentage?

Question

I would like to calculate the color depending on a percentage value:

float percentage = x/total;
int color;
if (percentage >= 0.95) {
  color = Color.GREE         


        

Answer 1

Here is a pseudocode function that interpolates linearly between 2 colors (staying in RGB space). I'm using a class called Color here instead of ints for clarity.

bAmount is between 0 and 1 (for interpolation)

Color interpolate(Color colorA, Color colorB, float bAmount) {
    Color colorOut;
    float aAmount = 1.0 - bAmount;
    colorOut.r =  colorA.r * aAmount + colorB.r * bAmount;
    colorOut.g =  colorA.g * aAmount + colorB.g * bAmount;
    colorOut.b =  colorA.b * aAmount + colorB.b * bAmount;
    return colorOut;
}