Question 75678 in Flutter Question posted in
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How to skip some Dates Flutter

I try to display dates of weeks. but based on requirement i need to skip Saturday and Sunday every time.

here is example of displaying date

here is code of date list:-

ListView.builder(
        itemCount: 7,
        shrinkWrap: true,
        itemBuilder: (context, index) => dateWidget(index),
      ),

here is code of dateWidget() method which is used for displaying dates:-

Widget dateWidget(int i) {
    DateTime tempDate = DateTime.now().add(Duration(days: i));
    return InkWell(
      onTap: () {},
      child: Container(
        margin: const EdgeInsets.all(2),
        width: 10.0,
        decoration: const BoxDecoration(
          borderRadius: BorderRadius.all(Radius.circular(10)),
          color: AppColor.premiumBlue,
        ),
        child: Container(
          padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 10),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              labels(text: DateFormat('EE').format(tempDate).toUpperCase()),
              labels(
                text: tempDate.day.toString(),
                color: AppColor.white,
              ),
            ],
          ),
        ),
      ),
    );
  }

I need to skip Saturday and Sunday dates. if i enter 7 so, display 7 dates and also skip Saturday and Sunday. If any date is cut then last date should also be added.

For example:-

I enter 7, means i want to display 7 date from today.
So, happen like this..
17-FRI, 18-SAT, 19-SUN, 20-MON, 21-TUE, 22-WED, 23-THU (currently happen this)

and want to skip Saturday and Sunday.
So, happen like this..
17-FRI, 20-MON, 21-TUE, 22-WED, 23-THU, 24-FRI (I want like this.)

Tags:

2

Answers


  1. 0

    You can return empty sizedBox based on weekday

      Widget dateWidget(int i) {
    DateTime tempDate = DateTime.now().add(Duration(days: i));

    if (tempDate.weekday > 5) {
      //6 and 7 for sat&sunday
      return SizedBox.shrink();
    }
    return InkWell(
      onTap: () {},
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  2. 0

    New Solution

    Instead of using ListView.builder, pass in a list of the generated widgets to a ListView as so:

    ...
child: ListView(
  shrinkWrap: true,
  children: generateDateWidgets(24),
);

    List<Widget> generateDateWidgets(int count) {
  int weekends = 0;
  return List.generate(
    count,
    (index) {
      DateTime tempDate = DateTime.now().add(Duration(days: index + weekends));
      if (tempDate.weekday > 5) {
        int offset = 7 - tempDate.weekday + 1;
        tempDate = tempDate.add(Duration(days: offset));
        weekends += offset;
      }
      return dateWidget(tempDate);
    },
  );
}

    dateWidget remains unchanged

    Widget dateWidget(DateTime date) {
  return InkWell(
    onTap: () {},
    child: Container(
      margin: const EdgeInsets.all(2),
      width: 10.0,
      decoration: const BoxDecoration(
        borderRadius: BorderRadius.all(Radius.circular(10)),
        color: AppColor.premiumBlue,
      ),
      child: Container(
        padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 10),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            labels(text: DateFormat('EE').format(date).toUpperCase()),
            labels(
              text: date.day.toString(),
              color: AppColor.white,
            ),
          ],
        ),
      ),
    ),
  );
}

    Old Solution (doesn’t work)

    Note: this solution doesn’t work since ListView.builder

    One solution (that isn’t that great, but works) is to do it like so by doing the calculations before creating the dateWidget:

    var weekends = 0; //define a count variable somwhere above ListView.builder
...
child: ListView.builder(
  itemCount: 7,
  shrinkWrap: true,
  itemBuilder: (context, index) {
    DateTime tempDate = DateTime.now().add(Duration(days: index + weekends));
    if (tempDate.weekday > 5) {
      int offset = 7 - tempDate.weekday + 1;
      tempDate = tempDate.add(Duration(days: offset));
      weekends += offset;
    }
    return dateWidget(tempDate);
  },
);

    And then

    Widget dateWidget(DateTime date) {
  return InkWell(
    onTap: () {},
    child: Container(
      margin: const EdgeInsets.all(2),
      width: 10.0,
      decoration: const BoxDecoration(
        borderRadius: BorderRadius.all(Radius.circular(10)),
        color: AppColor.premiumBlue,
      ),
      child: Container(
        padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 10),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            labels(text: DateFormat('EE').format(date).toUpperCase()),
            labels(
              text: date.day.toString(),
              color: AppColor.white,
            ),
          ],
        ),
      ),
    ),
  );
}

    An alternative solution would be to do what @YeasinSheikh suggested. Instead of using a number to determine the number of weekdays we want, set a certain date you want to have dateWidgets to and then calculate the number of days you need and put that into itemCount.

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