背景

有時候會用到判斷當前時間是否在時間段以內。直接上程式碼

1、直接比較時間的字串大小

private fun isTimeRange(currentTime: Long): Boolean {
    val nowDate = Date(currentTime)
    val simpleDate = SimpleDateFormat("HH:MM", Locale.CHINA)
    val nowTime = simpleDate.format(nowDate)
    val startTime = simpleDate.format(simpleDate.parse("7:00"))
    val endTime = simpleDate.format(simpleDate.parse(22:00))
    if (nowTime in startTime..endTime) {
        return true
    }
    return false

}
 

2、通過Calendar

private boolean isTimeRange()throws ParseException {
    SimpleDateFormat df = new SimpleDateFormat("HH:mm");
    Date now = df.parse(df.format(new Date()));
    Date begin = df.parse("7:00");
    Date end = df.parse("22:00");
    Calendar nowTime = Calendar.getInstance();
    nowTime.setTime(now);
    Calendar beginTime = Calendar.getInstance();
    beginTime.setTime(begin);
    Calendar endTime = Calendar.getInstance();
    endTime.setTime(end);
    if (nowTime.before(endTime) && nowTime.after(beginTime)) {
        return true;
    } else {
        return false;
    }
}
 

親測有效

PS:越恐懼就越難戰勝自己