我要设置用户可以在一个datepicker当前日期选择最小日期。我试过这样的：

I want to set the minimum date the user can choose in a DatePicker to the current date. I've tried this:

DatePicker datePicker = (DatePicker) findViewById(R.id.event_date);
datePicker.setMinDate(System.currentTimeMillis());

这使我有以下异常：

12-01 12:23:31.226: E/AndroidRuntime(10311): Caused by: java.lang.IllegalArgumentException: fromDate: Sat Dec 01 12:23:31 EST 2012 does not precede toDate: Sat Dec 01 12:23:31 EST 2012

我如何做到这一点？

How do I do this?

推荐答案

该错误说你不能在最小日期设置为完全的现在。尝试减去第二个：

The error says you cannot set the minimum date to exactly now. Try subtracting a second:

datePicker.setMinDate(System.currentTimeMillis() - 1000);

从C的最小日期源$ C ​​$必须是之前，不等于当前日期：

From the source code the minimum date must be before, not equal to, the current date:

if (date.before(mMinDate)) {
    throw new IllegalArgumentException("fromDate: " + mMinDate.getTime()
            + " does not precede toDate: " + date.getTime());
}

所以，你只需要从现在开始（ System.currentTimeMillis的（））通过 date.before（mMinDate）。