如何在不超过一个月的可用天数的情况下将 7 天

问题描述

我正在尝试获取本月的今天.

I am trying to get todays day of the month.

我想做的是在数字上加上 7 天，然后得到当月的那一天.

And what i want to do is add seven days to the number and the get that current day of the month.

我还希望它能够到下个月......让我们说今天是 29 日.当它增加 7 天时，我怎样才能让它在下个月如 29 + 7 等于下个月的 5 号.

Also i want it to be able to go to the next month..Lets say today is the 29th. When it adds 7 days how can i get it to go the the next month such as 29 + 7 would equal the 5th of the next month.

我该怎么做呢?

我已经设法得到当前日期.

Ive already managed to get the current date.

Calendar cal = Calendar.getInstance();
    int day = cal.get(Calendar.DAY_OF_MONTH);
    int dayOfMonth = day;
    String today = getToday();

我使用它是因为我想每 7 天在我的主要活动中启动一个异步任务.

I am using this because i would like to launch an asynctask in my main activity every 7 days.

推荐答案

add(Calendar.DAY_OF_MONTH, 7);

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