vicfran

public static float dpiFromPx(int size, DisplayMetrics metrics){
    float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
    return (size / densityRatio);
}

public static int pxFromDp(float size, DisplayMetrics metrics) {
    return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, size, metrics));
}

public static int pxFromSp(float size, DisplayMetrics metrics) {