android - Datepicker:如何在单击按钮时弹出日期选择器并将值存储在 textview 中

Question

 <TextView
            android:id="@+id/tv_arrival"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:text="@string/arrivaldate"/>

        <Button
            android:id="@+id/btn_arrival"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:text="Set"/>

我想显示日期选择器弹出窗口。我找到了一些例子，但我没有正确理解。我有一个按钮，我希望当我点击按钮时，日期选择器对话框应该弹出，并且在设置日期之后，日期应该显示在一个 .请提供示例代码或好的链接。

 btn_arrival.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                final Dialog setDate = new Dialog(MainActivity.this);
                setDate.requestWindowFeature(Window.FEATURE_NO_TITLE);
                setDate.setContentView(R.layout.dialog_setdate);
                setDate.show();
                DatePicker date = (DatePicker) setDate.findViewById(R.id.datePicker);
                date.setMinDate(System.currentTimeMillis() - 1000);
                Calendar calender = Calendar.getInstance();

                DatePicker.OnDateChangedListener onDateChangedListener = new DatePicker.OnDateChangedListener() {
                    @Override
                    public void onDateChanged(DatePicker view, int years, int monthOfYear, int dayOfMonth) {
                        day = dayOfMonth;
                        year = years;
                        month = monthOfYear;
                        setDate.dismiss();
                        txt_arrival.setText("Arrival Date on: " + day + "." + (month + 1) + "." + year);
                        tv_departure.setText("Departure Date on: " + (day + 1) + "." + (month + 1) + "." + year + "");
                    }
                };

                day = calender.get(Calendar.DAY_OF_MONTH);
                month = calender.get(Calendar.MONTH);
                year = calender.get(Calendar.YEAR);

                date.init(year, month, day, onDateChangedListener);

            }

        });

Answer 1

这是示例代码像这样在您的 View 上设置 onclicklistener

 Calendar dateSelected = Calendar.getInstance();
  private DatePickerDialog datePickerDialog;
dateEditText.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
           setDateTimeField() ;
        }
    });


private void setDateTimeField() {
    Calendar newCalendar = dateSelected;
    datePickerDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {

        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
            dateSelected.set(year, monthOfYear, dayOfMonth, 0, 0);
            dateEditText.setText(dateFormatter.format(dateSelected.getTime()));
        }

    }, newCalendar.get(Calendar.YEAR), newCalendar.get(Calendar.MONTH), newCalendar.get(Calendar.DAY_OF_MONTH));
    dateEditText.setText(dateFormatter.format(dateSelected.getTime()));
}

或者您可以点击此链接

Datepicker: How to popup datepicker when click on edittext