Question

我必须基于日期间隔显示进度条，前提是我已经指定了开始日期和结束日期，因此我们必须以这种方式在进度条中显示进度，以便如果您需要1-3天，那么应该填写相同的进度3至6，我们应该填写相同的进度...就像这样。

根据以下步骤给出开始日期和结束日期 1。然后找到总天数 2查找今天日期和开始日期之间的天数差异 3尝试根据我设置的mProgress.setProgress（degrees;）来获得今天和剩余天数之间的度差。

private void displayProgressView() {
    Resources res = getResources();
    Drawable drawable = res.getDrawable(R.drawable.circular);
    final ProgressBar mProgress = (ProgressBar) findViewById(R.id.circularProgressbar);
    mProgress.setProgress(0);   // Main Progress
    mProgress.setSecondaryProgress(360); // Secondary Progress
    mProgress.setMax(360); // Maximum Progress
    mProgress.setProgressDrawable(drawable);
    int noOfDaysLeft = noOfDaysLeft();
    final int degrees = getDregeesFordays(totalDays() - noOfDaysLeft);
    textView.setText(noOfDaysLeft() + "\nday" + (noOfDaysLeft() == 1 ? "" : "s"));
    mProgress.setProgress(degrees);

 }

here is  date 
"startDate": "2019-09-12T15:48:12.293Z",
 "endDate": "2019-10-12T08:19:00.710Z",

我想基于3的倍数来设置进度，例如如果我们的日差值是1,2,3，那么它应该显示相同的进度，然后是4,5,6，然后是第二进度，以此类推...等等。

Answer 1

获取纪元时间，以秒为单位。我使用OffsetDateTime(ThreeTen)。

val offset = OffsetDateTime.now().offset

val startDateEpoch = [your starting date in LocalDateTime unit].toEpochSecond(offset)
val endDateEpoch = [your end date in LocalDateTime unit].toEpochSecond(offset)

计算result = endDateEpoch - startDateEpoch
将其翻译为几天

eg. result = 500000

timeDifference = result / (3600 * 24)

... additional algorithm

有条件地检查进度条

if(timeDifference  >= 1 && timeDifference <= 3) doA()

else if(timeDifference  >= 4 && timeDifference <= 7) doB()

...additional algorithm

更新：如何构建LocalDateTime单位

val dayOfMonth = 23
val year = 2001
val month = 3

val hour = 0
val minute = 0

val myDate = LocalDate.of(year, month, dayOfMonth)

val myTime = LocalTime.of(hour, minute)

val startDateTime = LocalDateTime.of(myDate, myTime)

如何根据天间隔动态显示进度

1 个答案: