Question

如何计算日期范围选择器之间的天数

我正在尝试，但是对此没有解决方案，请任何人都可以帮助我

我非常需要数天当用户从日期选择器范围中选择日期范围时然后设置文本的总天数。

    try {

        String valu1 = String.valueOf(constraintsBuilder.setStart(calendar.getTimeInMillis()));
        String valu2 = String.valueOf(constraintsBuilder.setEnd(calendar.getTimeInMillis()));
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("dd-MMM-yyyy");
        Date date1 = simpleDateFormat.parse(valu1);
        Date date2 = simpleDateFormat.parse(valu2);
        long difference = Math.abs(date1.getTime() - date2.getTime());

        Log.i("Testing","days" +difference);
        textView.setText("days" +difference);

    }
    catch(Exception ex)
    {

        ex.printStackTrace();
    }

主要代码是

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

    showDatePicker= findViewById(R.id.showDatepicker);
    textView=findViewById(R.id.textView);

    Calendar calendar =Calendar.getInstance(TimeZone.getTimeZone("UTC+06"));
 calendar.clear();

    MaterialDatePicker.Builder builder = MaterialDatePicker.Builder.dateRangePicker();
    builder.setTitleText("Select Date");
  


    final MaterialDatePicker materialDatePicker = builder.build();

    showDatePicker.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            materialDatePicker.show(getSupportFragmentManager(),"DATE_PICKER");

        }
    });


    materialDatePicker.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener() {
        @Override
        public void onPositiveButtonClick(Object selection) {

            showDatePicker.setText(materialDatePicker.getHeaderText());


        }
    });
}

Answer 1

您可以使用类似的内容：

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

    picker.addOnPositiveButtonClickListener(new MaterialPickerOnPositiveButtonClickListener<Pair<Long, Long>>() {
        @Override public void onPositiveButtonClick(Pair<Long,Long> selection) {
            Long startDate = selection.first;
            Long endDate = selection.second;

            long msDiff = endDate - startDate;
            long daysDiff = TimeUnit.MILLISECONDS.toDays(msDiff);
            

        }
    });

如何计算Android中日期范围材料选择器之间的天数

1 个答案: