MaterialDatePicker Select Date between 2 dates only

Question

How to add a constraint to MaterialDatePicker to force user to select a date between only 2 dates?

val constraintBuilder = CalendarConstraints.Builder()
    val materialRangeBuilder = MaterialDatePicker.Builder.datePicker()
    materialRangeBuilder.setTitleText("Book Date")
    materialRangeBuilder.setCalendarConstraints(constraintBuilder.build())

    val materialRangePicker = materialRangeBuilder.build()

    materialRangePicker.addOnPositiveButtonClickListener {
        Timber.d("$it")
    }

    materialRangePicker.show(supportFragmentManager, "DATE_RANGE_PICKER")

Gabriele Mariotti · Accepted Answer · 2020-06-19T11:38:22.337

You can use a DateValidator to restrict the selections.
In particular you can use the built-in validators:

DateValidatorPointForward that enables dates from a given point forward
DateValidatorPointBackward that enables only dates before a given point.

Something like:

MaterialDatePicker.Builder<Long> builder = MaterialDatePicker.Builder.datePicker();

CalendarConstraints.Builder constraintsBuilderRange = new CalendarConstraints.Builder();

//....define min and max for example with LocalDateTime and ZonedDateTime or Calendar

CalendarConstraints.DateValidator dateValidatorMin = DateValidatorPointForward.from(min.getTimeInMillis());
CalendarConstraints.DateValidator dateValidatorMax = DateValidatorPointBackward.before(max.getTimeInMillis());

ArrayList<CalendarConstraints.DateValidator> listValidators =
            new ArrayList<CalendarConstraints.DateValidator>();
listValidators.add(dateValidatorMin);
listValidators.add(dateValidatorMax);
CalendarConstraints.DateValidator validators = CompositeDateValidator.allOf(listValidators);
constraintsBuilderRange.setValidator(validators);

builder.setCalendarConstraints(constraintsBuilderRange.build());

MaterialDatePicker<Long> picker = builder.build();
picker.show(getSupportFragmentManager(), picker.toString());

@AhmedAbdeen You can also build your custom `DateValidator` overriding the `isValid(date: Long)` method. — Gabriele Mariotti, Jun 19 '20 at 11:41
@GabrieleMariotti what if I want to limit it from year? Example oldest year is 2009 up to current year for example? — Bitwise DEVS, Mar 05 '22 at 22:14

Reinaldo Riant Kurnia Perdana · Answer 2 · 2022-04-02T10:29:52.720

This is version for kotlin :

private fun calendarConstraints(): CalendarConstraints {
    val dateValidatorMin: DateValidator = DateValidatorPointForward.from(min.getTimeInMillis())
    val dateValidatorMax: DateValidator = DateValidatorPointBackward.before(max.getTimeInMillis())

    val listValidators = ArrayList<DateValidator>()
    listValidators.apply {
        add(dateValidatorMin)
        add(dateValidatorMax)
    }
    val validators = CompositeDateValidator.allOf(listValidators)

    return CalendarConstraints.Builder()
        .setValidator(validators)
        .build()
}
private fun setupCalendar() {
   val materialDatePickerBuilder = MaterialDatePicker.Builder.datePicker().setCalendarConstraints(calendarConstraints())}

score 3 · Answer 3 · answered Jul 12 '20 at 07:47

@GabrieleMariotti answer is good, but DateValidatorPointBackwards class is not in material design library before version 1.2. If you want to choose between two dates and you have material design library version 1.1 or earlier, you can do it like this:

val datePickerBuilder = MaterialDatePicker.Builder.datePicker()
datePickerBuilder.setCalendarConstraints(
    CalendarConstraints.Builder()
        .setValidator(object : CalendarConstraints.DateValidator {
            override fun isValid(date: Long): Boolean {
                return date >= startDate && date < endDate
            }

            override fun writeToParcel(p0: Parcel?, p1: Int) {}

            override fun describeContents(): Int {return 0}
        }).build()
)
val datePicker = datePickerBuilder.build()
datePicker!!.show(fragmentManager, "date picker")

where startDate and endDate are long values

score 0 · Answer 4 · answered Aug 19 '22 at 19:23

update build.gradle (app) version as below

implementation 'com.google.android.material:material:1.4.0'

code level

CalendarConstraints.Builder constraintsBuilderRange = new CalendarConstraints.Builder()
                .setValidator(DateValidatorPointBackward.now());
        builder.setCalendarConstraints(constraintsBuilderRange.build());
        MaterialDatePicker picker = builder.build();

score -1 · Answer 5 · answered Jun 19 '20 at 11:54

-1

Use these two methods

public void setMinDate (long minDate)
public void setMaxDate (long maxDate)

Here is the official documentation. https://developer.android.com/reference/android/widget/DatePicker#setMaxDate(long)

Example

val calender = Calendar.getInstance()
val year = calender.get(Calendar.YEAR)
val month = calender.get(Calendar.MONTH)
val day = calender.get(Calendar.DAY_OF_MONTH)
materialRangeBuilder.setMinDate(calender.getTimeInMillis())
materialRangeBuilder.setMaxDate(calender.getTimeInMillis())

answered Jun 19 '20 at 11:54

Nauman Khaliq

909
5
2

That's for the Android platform version of the datepicker. – Edric Jun 20 '20 at 14:48
1

setMinDate and setMaxDate isn't available in material design range object – Ahmed Abdeen Jul 13 '20 at 13:37

MaterialDatePicker Select Date between 2 dates only

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