Android获得状态栏高度

private int getStatusBarHeight() {          Class<?> c = null;            Object obj = null;            Field field = null;            int x = 0, sbar = 0;            try {                c = Class.forName("com.android.internal.R$dimen");                obj = c.newInstance();                field = c.getField("status_bar_height");                x = Integer.parseInt(field.get(obj).toString());                sbar = getContext().getResources().getDimensionPixelSize(x);            } catch (Exception e1) {                e1.printStackTrace();            }            return sbar;      }