Rating

RatingColor.java

/**
     * This method used to display rating by colors
     *
     * @param productModel
     */
    private void setRatingByColor(ProductModel productModel) {
        int widthView = constrainLayout1.getWidth();
        int totalAllVoters = productModel.getTotalVoters();
        int totalRateStar1 = productModel.getStar1();
        int totalRateStar2 = productModel.getStar2();
        int totalRateStar3 = productModel.getStar3();
        int totalRateStar4 = productModel.getStar4();
        int totalRateStar5 = productModel.getStar5();

        //convert to double
        double votersInDouble = (double) totalAllVoters;


        //RATING STAR 1
        double star1 = (double) totalRateStar1;
        double sum1 = (star1 / votersInDouble);
        int rating1 = (int) (sum1 * widthView);
        ConstraintLayout.LayoutParams layoutParams1 = new ConstraintLayout.LayoutParams(rating1, ConstraintLayout.LayoutParams.MATCH_PARENT);
        layoutParams1.setMargins(0, 5, 0, 5);
        llPercentage1.setBackgroundColor(Color.parseColor("#ff6f31"));
        llPercentage1.setLayoutParams(layoutParams1);

        //RATING STAR 2
        double star2 = (double) totalRateStar2;
        double sum2 = (star2 / votersInDouble);
        int rating2 = (int) (sum2 * widthView);
        ConstraintLayout.LayoutParams layoutParams2 = new ConstraintLayout.LayoutParams(rating2, ConstraintLayout.LayoutParams.MATCH_PARENT);
        layoutParams2.setMargins(0, 5, 0, 5);
        llPercentage2.setBackgroundColor(Color.parseColor("#ff9f02"));
        llPercentage2.setLayoutParams(layoutParams2);

        //RATING STAR 3
        double star3 = (double) totalRateStar3;
        double sum3 = (star3 / votersInDouble);
        int rating3 = (int) (sum3 * widthView);
        ConstraintLayout.LayoutParams layoutParams3 = new ConstraintLayout.LayoutParams(rating3, ConstraintLayout.LayoutParams.MATCH_PARENT);
        layoutParams3.setMargins(0, 5, 0, 5);
        llPercentage3.setBackgroundColor(Color.parseColor("#ffcf02"));
        llPercentage3.setLayoutParams(layoutParams3);

        //RATING STAR 4
        double star4 = (double) totalRateStar4;
        double sum4 = (star4 / votersInDouble);
        int rating4 = (int) (sum4 * widthView);
        ConstraintLayout.LayoutParams layoutParams4 = new ConstraintLayout.LayoutParams(rating4, ConstraintLayout.LayoutParams.MATCH_PARENT);
        layoutParams4.setMargins(0, 5, 0, 5);
        llPercentage4.setBackgroundColor(Color.parseColor("#9ace6a"));
        llPercentage4.setLayoutParams(layoutParams4);

        //RATING STAR 5
        double star5 = (double) totalRateStar5;
        double sum5 = (star5 / votersInDouble);
        int rating5 = (int) (sum5 * widthView);
        ConstraintLayout.LayoutParams layoutParams5 = new ConstraintLayout.LayoutParams(rating5, ConstraintLayout.LayoutParams.MATCH_PARENT);
        layoutParams5.setMargins(0, 5, 0, 5);
        llPercentage5.setBackgroundColor(Color.parseColor("#57bb8a"));
        llPercentage5.setLayoutParams(layoutParams5);

        // menampilkan rating berdasarkan angka
        int totalBintangSatu = totalRateStar1 * 1;
        int totalBintangDua = totalRateStar2 * 2;
        int totalBintangTiga = totalRateStar3 * 3;
        int totalBintangEmpat = totalRateStar4 * 5;
        int totalBintangLima = totalRateStar5 * 5;

        double sumBintang = totalBintangSatu +
                totalBintangDua +
                totalBintangTiga +
                totalBintangEmpat +
                totalBintangLima;

        double rating = (sumBintang / votersInDouble);
        DecimalFormat format = new DecimalFormat(".#");

        tvTotalNumberRating.setText(String.valueOf(format.format(rating)));

        totalStarRating.setRating(Float.parseFloat(String.valueOf(rating)));
        tvTotalPemberiBintang.setText(String.valueOf(totalAllVoters) + " total");


    }