android 通过反射方法获取状态栏高度

RT，直接贴代码

    /**
     * get the status_bar_height
     * @param activity
     * @return
     */
    public static int getStatusHeight(Activity activity) {
        int statusHeight = 0;
        Class<?> localClass = null;
        try {
            localClass = Class.forName("com.android.internal.R$dimen");
            Object localObject = localClass.newInstance();
            int h = Integer.parseInt(localClass.getField("status_bar_height")
                    .get(localObject).toString());
            statusHeight = activity.getResources().getDimensionPixelSize(h);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return statusHeight;
    }