I am here to share  how to create Star and Diamond in Android:

1. Create Star using Line :

int maxX, maxY, minMaxXY, xCenter, yCenter;
               maxX = width – 1;
        maxY = height – 1;
        minMaxXY = Math.min(maxX, maxY);
        xCenter = maxX / 2;
        yCenter = maxY / 2;
float side = 0.95F * minMaxXY, sideHalf = 0.5F * side, h = sideHalf
                * (float) Math.sqrt(3), xA, yA, xB, yB, xC, yC, xA1, yA1, xB1, yB1, xC1, yC1,xD,yD, p, q;
       

   
            int ax = (xCenter/2) + 20;
        int ay = 20;
        int bx = xCenter+20;
        int by = (int)(.374*(double)(yCenter)+(double)(20));
        int cx = (int)(.825*(double)(xCenter)+(double)(20));
        int cy = yCenter+20;
        int dx = (int)(.175*(double)(yCenter)+(double)(20));
        int dy = yCenter+20;
        int ex = 20;
        int ey = by;
        //Color colorSave = g.getColor(); // save previous color
        //g.setColor(c);
        g.drawLine(ax,ay,cx,cy);
        g.drawLine(bx,by,dx,dy);
        g.drawLine(cx,cy,ex,ey);
        g.drawLine(dx,dy,ax,ay);
        g.drawLine(ex,ey,bx,by);

2.Create Star using Eclipse :

float side = 0.95F * minMaxXY, sideHalf = 0.5F * side, h = sideHalf
                * (float) Math.sqrt(4);

        xA = xCenter – sideHalf;
        yA = yCenter – 0.5F * h;
        xB = xCenter + sideHalf;
        yB = yA;
        xC = xCenter + sideHalf;
        yC = (yCenter + 0.5F * h) + 5;
        xD = xCenter – sideHalf;
        yD = (yCenter + 0.5F * h) + 5;

        int r = (int) radius;
        Random rd = new Random();
        int red = rd.nextInt(255);
        int blue = rd.nextInt(255);
        int green = rd.nextInt(255);
        RectF  oval = new RectF((float)centerX,(float)centerY, (float)centerX+30,(float) centerY+70);
        RectF  oval1 = new RectF((float)centerX-25,(float)centerY+20, (float)centerX+60,(float) centerY+50);
                
                c.drawOval(oval, p);
        c.drawOval(oval1, p);

3.Create Diamond using Line :

centerX=width/2
centerY=height/2
c.drawLine((float)centerX,(float) (centerY), (float)centerX+20,(float)centerY+20,p);
c.drawLine((float)centerX,(float)centerY,(float)centerX+20,(float)centerY-20,p);
            c.drawLine((float)centerX+20,(float)centerY-20,(float)centerX+40, (float)centerY,p);
            c.drawLine((float)centerX+40,(float)centerY,(float)centerX+20, (float)centerY+20,p);

 

– By Sonu Odesi

Android Developer