Android drawing an animated line

I'm currently working with graphics and paths, and I can successufully display whatever I want.

But instead of drawing a line directly on my SurfaceView, I'd like to draw it progressively in an animation.

What I've done so far is to create a Path and then to use PathMeasure to retrieve the coordinates progressively along the path. Here is basically what I've done so far

PathMeasure pm = new PathMeasure(myPath, false);

    float position = 0;
    float end = pm.getLength();
    float[] coord = {0,0,0,0,0,0,0,0,0};

    while (position < end){
        Matrix m = new Matrix();
        // put the current path position coordinates into the matrix
        pm.getMatrix(position, m, PathMeasure.POSITION_MATRIX_FLAG | PathMeasure.TANGENT_MATRIX_FLAG);
        // put the matrix data into the coord array (coord[2] = x and coord[5] = y)
        m.getValues(coord);
        ????
        position += 1;

    }

The question marks is where I'm stuck. I want to draw the path progressively and see it animated on the screen. I couldn't find much info about it on the internet, so any clue would be much appreciated if you have already come across the same situation. The final effect I want to create is like a pencil drawing progressively a text automatically.