android 判断是白天还是晚上，然后设置地图模式

简单的判断白天，晚上的java代码

  /**     * true day 白天   return false晚上     * @return     */    public static boolean isDayOrNight() {        if (get24HourMode()) {            //24小时制            Calendar c = Calendar.getInstance();           int currHour =  c.get(c.HOUR_OF_DAY);           if (currHour >= 6 && currHour < 18){               return true;           }        } else {            //12小时制            Calendar c = Calendar.getInstance();            int currHour = c.get(c.HOUR);            if (c.get(Calendar.AM_PM) == 0) {                //上午                if (currHour >=6 && currHour <= 12){                    return true;                }            } else {                //下午                if (currHour >=0 && currHour < 6){                    return true;                }            }        }        return false;    }//返回true是24小时制，否则是12小时制    public static boolean get24HourMode() {        return android.text.format.DateFormat.is24HourFormat(BaseApp.getAppContext());    }

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