转载自: http://my.oschina.net/muchenshou/blog/60814
/**
* UnitConvertUtil.getRawSize(
TypedValue.COMPLEX_UNIT_SP, TEXT_SIZE)
* */
public static float getRawSize(int unit, float size) {
Context c = MCloudApplication.getInstance();//application.context
Resources r;
if (c == null)
r = Resources.getSystem();
else
r = c.getResources();
return TypedValue.applyDimension(unit, size, r.getDisplayMetrics());
}