Question

我正在创建日期选择器并遵循一些准则并在stackoverflow中回答。但显然，我的约会选择月份从零开始。

例如：如果我选择2018年1月24日，它将输出为24/0/2018。

有人可以教我如何解决这个问题吗？并将日期格式更改为＆＃34; mm-dd-yyyy＆＃34;。三江源

    etin = (EditText) findViewById(R.id.etcheckin);
    etin.setInputType(InputType.TYPE_NULL);
    etout = (EditText) findViewById(R.id.etcheckout);
    etout.setInputType(InputType.TYPE_NULL);

    etin.setOnClickListener( new View.OnClickListener() {

        @Override
        public void onClick(View view) {

            showTruitonDatePickerDialog(view);
        }
    });

    etout.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View view) {

            showToDatePickerDialog(view);
        }
    });
}

public void showTruitonDatePickerDialog(View v){
    DialogFragment newFragment = new DatePickerFragment();
    newFragment.show(getSupportFragmentManager(), "datePicker");
}

public void  showToDatePickerDialog(View v){
    DialogFragment newFragment = new ToDatePickerFragment();
    newFragment.show(getSupportFragmentManager(), "datePicker");
}

public static class  DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener{
    public Dialog onCreateDialog(Bundle savedInstanceState){
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);

        DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(), R.style.Theme_AppCompat_DayNight_Dialog_Alert, this, year, month, day);

        datePickerDialog.getDatePicker().setMinDate(c.getTimeInMillis());
        c.set(2018,11 ,31);
        datePickerDialog.getDatePicker().setMaxDate(c.getTimeInMillis());
        return datePickerDialog;
    }

    public void onDateSet(DatePicker view, int year, int month, int day) {
        // Do something with the date chosen by the user

        etin.setText(day + "/" + month + "/" + year);
    }
}

public static class ToDatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
    // Calendar startDateCalendar=Calendar.getInstance();

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker

        String getfromdate = etin.getText().toString().trim();
        String getfrom[] = getfromdate.split("/");
        int year,month,day;
        year= Integer.parseInt(getfrom[2]);
        month = Integer.parseInt(getfrom[1]);
        day = Integer.parseInt(getfrom[0]);
        final Calendar c = Calendar.getInstance();
        c.set(year, month, day + 1);
        DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(), R.style.Theme_AppCompat_DayNight_Dialog_Alert, this, year, month, day);
        datePickerDialog.getDatePicker().setMinDate(c.getTimeInMillis());

        c.set(2018,11, 31);
        datePickerDialog.getDatePicker().setMaxDate(c.getTimeInMillis());
        return datePickerDialog;
    }
    public void onDateSet(DatePicker view, int year, int month, int day) {

        Calendar cal = Calendar.getInstance();
        cal.setTimeInMillis(0);
        cal.set(year, month, day, 0, 0, 0);
        Date chosenDate = cal.getTime();


        etout.setText(day + "/" + month  + "/" + year);
    }
}

Answer 1

只需在每个月份中添加1并将结果存储到新变量中，然后将该变量用作所选月份。像这样：int mont = month+1;。此外，我修改了代码的最后一个片段，以便我的解释付诸行动。

public void onDateSet(DatePicker view, int year, int month, int day) {
        int mont = month+1;
        Calendar cal = Calendar.getInstance();
        cal.setTimeInMillis(0);
        cal.set(year, mont, day, 0, 0, 0);
        Date chosenDate = cal.getTime();


        etout.setText(day + "/" + mont  + "/" + year);
    }

mont是新变量。

更新：要在您的签入中获得类似的结果，请在获取日期的代码中执行相同的操作。像这样：

public void onDateSet(DatePicker view, int year, int month, int day) {
    // Do something with the date chosen by the user
    int mont = month +1;

    etin.setText(day + "/" + mont + "/" + year);
}

Answer 2

您确实是在轮班工作。例如，对应于2018年10月31日，您将获得2018年9月31日。

android datepicker 1月份输出零

2 个答案: