해상도에 따른 값 변경

public static float pxToDp(float px)
{
return (px / Resources.getSystem().getDisplayMetrics().density);
}

public static float spToPx(float sp)
{
return (sp * Resources.getSystem().getDisplayMetrics().density);
}

public static float dpToPx(float dp)
{
return (dp * Resources.getSystem().getDisplayMetrics().density);
}