Java Android Studio-在TextView上显示dateRangePicker中选定的日期

有人知道如何在TextView上显示dateRangePicker选择的日期吗？我是一名大学学生，目前正在进行我的最后一年项目，这个函数应该在用户从对话框中选择日期后显示所选的日期范围

这是我的密码

    @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main_cuti);

    btnDate = findViewById(R.id.btnDate);
    pilihDate = findViewById(R.id.mvPilihTarikh);
    
    Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
    calendar.clear();

    Pair<Long, Long> selectionDates=null;

    Long today = MaterialDatePicker.todayInUtcMilliseconds();

    calendar.setTimeInMillis(today);

    calendar.roll(Calendar.MONTH, Calendar.JANUARY);
    Long january = calendar.getTimeInMillis();

    calendar.roll(Calendar.MONTH, Calendar.DECEMBER);
    Long december = calendar.getTimeInMillis();

    CalendarConstraints.Builder constraintBuilder = new CalendarConstraints.Builder();
    constraintBuilder.setValidator(DateValidatorPointForward.now());

    MaterialDatePicker.Builder<Pair<Long, Long>> builder = MaterialDatePicker.Builder.dateRangePicker();
    CalendarConstraints.Builder constraintsBuilder = new CalendarConstraints.Builder();
    builder.setCalendarConstraints(constraintsBuilder.build());
    MaterialDatePicker<?> picker = builder.build();
    picker.show(getSupportFragmentManager(), builder.toString());
    builder.setTitleText("PILIH TARIKH");
    builder.setSelection(selectionDates);
    builder.setCalendarConstraints(constraintBuilder.build());
    MaterialDatePicker materialDatePicker = builder.build();

    btnDate.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            materialDatePicker.show(getSupportFragmentManager(), materialDatePicker.toString());

        }
    });

}

@覆盖
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity\u main\u cuti）；
btnDate=findviewbyd（R.id.btnDate）；
pilihDate=findviewbyd（R.id.mvPilihTarikh）；
日历日历=Calendar.getInstance（TimeZone.getTimeZone（“UTC”）；
calendar.clear（）；
Pair selectionDates=null；
Long today=MaterialDatePicker.TodayinutCms（）；
calendar.setTimeInMillis（今天）；
日历.滚动（日历.月，日历.一月）；
长一月=日历。getTimeInMillis（）；
日历.滚动（日历.月，日历.十二月）；
长十二月=日历。getTimeInMillis（）；
CalendarConstraints.Builder constraintBuilder=新的CalendarConstraints.Builder（）；
setValidator（DateValidatorPointForward.now（））；
MaterialDatePicker.Builder=MaterialDatePicker.Builder.dateRangePicker（）；
CalendarConstraints.Builder constraintsBuilder=新的CalendarConstraints.Builder（）；
setCalendarConstraints（constraintsBuilder.build（））；
MaterialDatePicker-picker=builder.build（）；
show（getSupportFragmentManager（），builder.toString（））；
建造商：setTitleText（“PILIH TARIKH”）；
建造商设置选择（选择日期）；
setCalendarConstraints（constraintBuilder.build（））；
MaterialDatePicker MaterialDatePicker=builder.build（）；
btnDate.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
显示（getSupportFragmentManager（），materialDatePicker.toString（））；
}
});
}

您可以查看本教程。它使用物料日期选择器

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您可以查看本教程。它使用物料日期选择器

final MaterialDatePicker materialDatePicker = materialDateBuilder.build();

    // handle select date button which opens the
    // material design date picker
    mPickDateButton.setOnClickListener(
            new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    // getSupportFragmentManager() to
                    // interact with the fragments
                    // associated with the material design
                    // date picker tag is to get any error
                    // in logcat
                    materialDatePicker.show(getSupportFragmentManager(), "MATERIAL_DATE_PICKER");
                }
            });

    // now handle the positive button click from the
    // material design date picker
    materialDatePicker.addOnPositiveButtonClickListener(
            new MaterialPickerOnPositiveButtonClickListener() {
                @SuppressLint("SetTextI18n")
                @Override
                public void onPositiveButtonClick(Object selection) {

                    // if the user clicks on the positive
                    // button that is ok button update the
                    // selected date
                    mShowSelectedDateText.setText("Selected Date is : " + materialDatePicker.getHeaderText());
                    // in the above statement, getHeaderText
                    // is the selected date preview from the
                    // dialog
                }
            });