Android class that converts density to raw pixels and vice versa

MetricsCalculator.java

public class MetricsCalculator {

    public static float convertDpToPixel(float dp,Context ctx) {
        Resources resources = ctx.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        return dp * (metrics.densityDpi / 160f);
    }

    public static float convertPixelToDp(float px, Context ctx) {
        Resources resources = ctx.getResources();
        DisplayMetrics metrics = resources.getDisplayMetrics();
        return px / (metrics.densityDpi / 160f);
    }
}