Java 一个对话框中的 Android 日期时间选择器

Android Date Time picker in one dialog

提问by anuradha

I am using material DateTimepicker for my Android app. But I want to combine the Dateand Timepicker in one dialog.

我正在DateTime为我的 Android 应用程序使用材质选择器。但我想在一个对话框中组合Date和Time选择器。

I am following this one. But I need to select the time right after the date selection.

我正在关注这个。但我需要在日期选择后立即选择时间。

Please suggest possible way to do this one.

请建议可能的方法来做到这一点。

回答by Mayur Patel

Try this code :

试试这个代码：

CustomDateTimePicker.java

自定义日期时间选择器.java

import android.app.Activity;
import android.app.Dialog;
import android.content.DialogInterface;
import android.view.Gravity;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TimePicker;
import android.widget.ViewSwitcher;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
 * Created by admin on 6/29/2016.
 */
public class CustomDateTimePicker implements View.OnClickListener {
    private DatePicker datePicker;
    private TimePicker timePicker;
    private ViewSwitcher viewSwitcher;

    private final int SET_DATE = 100, SET_TIME = 101, SET = 102, CANCEL = 103;

    private Button btn_setDate, btn_setTime, btn_set, btn_cancel;

    private Calendar calendar_date = null;

    private Activity activity;

    private ICustomDateTimeListener iCustomDateTimeListener = null;

    private Dialog dialog;

    private boolean is24HourView = true, isAutoDismiss = true;

    private int selectedHour, selectedMinute;

    public CustomDateTimePicker(Activity a,
                                ICustomDateTimeListener customDateTimeListener) {
        activity = a;
        iCustomDateTimeListener = customDateTimeListener;

        dialog = new Dialog(activity);
        dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
            @Override
            public void onDismiss(DialogInterface dialog) {
                resetData();
            }
        });

        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        View dialogView = getDateTimePickerLayout();
        dialog.setContentView(dialogView);
    }

    public View getDateTimePickerLayout() {
        LinearLayout.LayoutParams linear_match_wrap = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.MATCH_PARENT);
        LinearLayout.LayoutParams linear_wrap_wrap = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT,
                LinearLayout.LayoutParams.WRAP_CONTENT);
        FrameLayout.LayoutParams frame_match_wrap = new FrameLayout.LayoutParams(
                FrameLayout.LayoutParams.MATCH_PARENT,
                FrameLayout.LayoutParams.WRAP_CONTENT);

        LinearLayout.LayoutParams button_params = new LinearLayout.LayoutParams(
                0, LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f);

        LinearLayout linear_main = new LinearLayout(activity);
        linear_main.setLayoutParams(linear_match_wrap);
        linear_main.setOrientation(LinearLayout.VERTICAL);
        linear_main.setGravity(Gravity.CENTER);

        LinearLayout linear_child = new LinearLayout(activity);
        linear_child.setLayoutParams(linear_wrap_wrap);
        linear_child.setOrientation(LinearLayout.VERTICAL);

        LinearLayout linear_top = new LinearLayout(activity);
        linear_top.setLayoutParams(linear_match_wrap);

        btn_setDate = new Button(activity);
        btn_setDate.setLayoutParams(button_params);
        btn_setDate.setText("Set Date");
        btn_setDate.setId(SET_DATE);
        btn_setDate.setOnClickListener(this);

        btn_setTime = new Button(activity);
        btn_setTime.setLayoutParams(button_params);
        btn_setTime.setText("Set Time");
        btn_setTime.setId(SET_TIME);
        btn_setTime.setOnClickListener(this);

        linear_top.addView(btn_setDate);
        linear_top.addView(btn_setTime);

        viewSwitcher = new ViewSwitcher(activity);
        viewSwitcher.setLayoutParams(frame_match_wrap);

        datePicker = new DatePicker(activity);
        timePicker = new TimePicker(activity);
        timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
            @Override
            public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
                selectedHour = hourOfDay;
                selectedMinute = minute;
            }
        });

        viewSwitcher.addView(timePicker);
        viewSwitcher.addView(datePicker);

        LinearLayout linear_bottom = new LinearLayout(activity);
        linear_match_wrap.topMargin = 8;
        linear_bottom.setLayoutParams(linear_match_wrap);

        btn_set = new Button(activity);
        btn_set.setLayoutParams(button_params);
        btn_set.setText("Set");
        btn_set.setId(SET);
        btn_set.setOnClickListener(this);

        btn_cancel = new Button(activity);
        btn_cancel.setLayoutParams(button_params);
        btn_cancel.setText("Cancel");
        btn_cancel.setId(CANCEL);
        btn_cancel.setOnClickListener(this);

        linear_bottom.addView(btn_set);
        linear_bottom.addView(btn_cancel);

        linear_child.addView(linear_top);
        linear_child.addView(viewSwitcher);
        linear_child.addView(linear_bottom);

        linear_main.addView(linear_child);

        return linear_main;
    }

    public void showDialog() {
        if (!dialog.isShowing()) {
            if (calendar_date == null)
                calendar_date = Calendar.getInstance();

            selectedHour = calendar_date.get(Calendar.HOUR_OF_DAY);
            selectedMinute = calendar_date.get(Calendar.MINUTE);

            timePicker.setIs24HourView(is24HourView);
            timePicker.setCurrentHour(selectedHour);
            timePicker.setCurrentMinute(selectedMinute);

            datePicker.updateDate(calendar_date.get(Calendar.YEAR),
                    calendar_date.get(Calendar.MONTH),
                    calendar_date.get(Calendar.DATE));

            dialog.show();

            btn_setDate.performClick();
        }
    }

    public void setAutoDismiss(boolean isAutoDismiss) {
        this.isAutoDismiss = isAutoDismiss;
    }

    public void dismissDialog() {
        if (!dialog.isShowing())
            dialog.dismiss();
    }

    public void setDate(Calendar calendar) {
        if (calendar != null)
            calendar_date = calendar;
    }

    public void setDate(Date date) {
        if (date != null) {
            calendar_date = Calendar.getInstance();
            calendar_date.setTime(date);
        }
    }

    public void setDate(int year, int month, int day) {
        if (month < 12 && month >= 0 && day < 32 && day >= 0 && year > 100
                && year < 3000) {
            calendar_date = Calendar.getInstance();
            calendar_date.set(year, month, day);
        }

    }

    public void setTimeIn24HourFormat(int hourIn24Format, int minute) {
        if (hourIn24Format < 24 && hourIn24Format >= 0 && minute >= 0
                && minute < 60) {
            if (calendar_date == null)
                calendar_date = Calendar.getInstance();

            calendar_date.set(calendar_date.get(Calendar.YEAR),
                    calendar_date.get(Calendar.MONTH),
                    calendar_date.get(Calendar.DAY_OF_MONTH), hourIn24Format,
                    minute);

            is24HourView = true;
        }
    }

    public void setTimeIn12HourFormat(int hourIn12Format, int minute,
                                      boolean isAM) {
        if (hourIn12Format < 13 && hourIn12Format > 0 && minute >= 0
                && minute < 60) {
            if (hourIn12Format == 12)
                hourIn12Format = 0;

            int hourIn24Format = hourIn12Format;

            if (!isAM)
                hourIn24Format += 12;

            if (calendar_date == null)
                calendar_date = Calendar.getInstance();

            calendar_date.set(calendar_date.get(Calendar.YEAR),
                    calendar_date.get(Calendar.MONTH),
                    calendar_date.get(Calendar.DAY_OF_MONTH), hourIn24Format,
                    minute);

            is24HourView = false;
        }
    }

    public void set24HourFormat(boolean is24HourFormat) {
        is24HourView = is24HourFormat;
    }

    public interface ICustomDateTimeListener {
        public void onSet(Dialog dialog, Calendar calendarSelected,
                          Date dateSelected, int year, String monthFullName,
                          String monthShortName, int monthNumber, int day,
                          String weekDayFullName, String weekDayShortName, int hour24,
                          int hour12, int min, int sec, String AM_PM);

        public void onCancel();
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case SET_DATE:
            btn_setTime.setEnabled(true);
            btn_setDate.setEnabled(false);

            if (viewSwitcher.getCurrentView() != datePicker) {
                viewSwitcher.showPrevious();
            }
            break;

        case SET_TIME:
            btn_setTime.setEnabled(false);
            btn_setDate.setEnabled(true);
            if (viewSwitcher.getCurrentView() == datePicker) {
                viewSwitcher.showNext();
            }
            break;


            case SET:
                if (iCustomDateTimeListener != null) {
                    int month = datePicker.getMonth();
                    int year = datePicker.getYear();
                    int day = datePicker.getDayOfMonth();


                    calendar_date.set(year, month, day, selectedHour,
                            selectedMinute);

                    iCustomDateTimeListener.onSet(dialog, calendar_date,
                            calendar_date.getTime(), calendar_date
                                    .get(Calendar.YEAR),
                            getMonthFullName(calendar_date.get(Calendar.MONTH)),
                            getMonthShortName(calendar_date.get(Calendar.MONTH)),
                            calendar_date.get(Calendar.MONTH), calendar_date
                                    .get(Calendar.DAY_OF_MONTH),
                            getWeekDayFullName(calendar_date
                                    .get(Calendar.DAY_OF_WEEK)),
                            getWeekDayShortName(calendar_date
                                    .get(Calendar.DAY_OF_WEEK)), calendar_date
                                    .get(Calendar.HOUR_OF_DAY),
                            getHourIn12Format(calendar_date
                                    .get(Calendar.HOUR_OF_DAY)), calendar_date
                                    .get(Calendar.MINUTE), calendar_date
                                    .get(Calendar.SECOND), getAMPM(calendar_date));
                }
                if (dialog.isShowing() && isAutoDismiss)
                    dialog.dismiss();
                break;

            case CANCEL:
                if (iCustomDateTimeListener != null)
                    iCustomDateTimeListener.onCancel();
                if (dialog.isShowing())
                    dialog.dismiss();
                break;
        }
    }

    /**
     * @param date
     *            date in String
     * @param fromFormat
     *            format of your <b>date</b> eg: if your date is 2011-07-07
     *            09:09:09 then your format will be <b>yyyy-MM-dd hh:mm:ss</b>
     * @param toFormat
     *            format to which you want to convert your <b>date</b> eg: if
     *            required format is 31 July 2011 then the toFormat should be
     *            <b>d MMMM yyyy</b>
     * @return formatted date
     */
    public static String convertDate(String date, String fromFormat,
                                     String toFormat) {
        try {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat(fromFormat);
            Date d = simpleDateFormat.parse(date);
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(d);

            simpleDateFormat = new SimpleDateFormat(toFormat);
            simpleDateFormat.setCalendar(calendar);
            date = simpleDateFormat.format(calendar.getTime());

        } catch (Exception e) {
            e.printStackTrace();
        }

        return date;
    }

    private String getMonthFullName(int monthNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.MONTH, monthNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMMM");
        simpleDateFormat.setCalendar(calendar);
        String monthName = simpleDateFormat.format(calendar.getTime());

        return monthName;
    }

    private String getMonthShortName(int monthNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.MONTH, monthNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMM");
        simpleDateFormat.setCalendar(calendar);
        String monthName = simpleDateFormat.format(calendar.getTime());

        return monthName;
    }

    private String getWeekDayFullName(int weekDayNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.DAY_OF_WEEK, weekDayNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEEE");
        simpleDateFormat.setCalendar(calendar);
        String weekName = simpleDateFormat.format(calendar.getTime());

        return weekName;
    }

    private String getWeekDayShortName(int weekDayNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.DAY_OF_WEEK, weekDayNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EE");
        simpleDateFormat.setCalendar(calendar);
        String weekName = simpleDateFormat.format(calendar.getTime());

        return weekName;
    }

    private int getHourIn12Format(int hour24) {
        int hourIn12Format = 0;

        if (hour24 == 0)
            hourIn12Format = 12;
        else if (hour24 <= 12)
            hourIn12Format = hour24;
        else
            hourIn12Format = hour24 - 12;

        return hourIn12Format;
    }

    private String getAMPM(Calendar calendar) {
        String ampm = (calendar.get(Calendar.AM_PM) == (Calendar.AM)) ? "AM"
                : "PM";
        return ampm;
    }

    private void resetData() {
        calendar_date = null;
        is24HourView = true;
    }

    public static String pad(int integerToPad) {
        if (integerToPad >= 10 || integerToPad < 0)
            return String.valueOf(integerToPad);
        else
            return "0" + String.valueOf(integerToPad);
    }
}

In your Activity :

在您的活动中：

MainActivity.java:

主活动.java：

    public class MainActivity extends Activity{

     CustomDateTimePicker custom;
Button btnEventDateTime;
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
    btnEventDateTime = ((Button) findViewById(R.id.btnEventDateTime));
    custom = new CustomDateTimePicker(this,
                    new CustomDateTimePicker.ICustomDateTimeListener() {

                        @Override
                        public void onSet(Dialog dialog, Calendar calendarSelected,
                                          Date dateSelected, int year, String monthFullName,
                                          String monthShortName, int monthNumber, int day,
                                          String weekDayFullName, String weekDayShortName,
                                          int hour24, int hour12, int min, int sec,
                                          String AM_PM) {
    //                        ((TextInputEditText) findViewById(R.id.edtEventDateTime))
                            edtEventDateTime.setText("");
                            edtEventDateTime.setText(year
                                    + "-" + (monthNumber + 1) + "-" + calendarSelected.get(Calendar.DAY_OF_MONTH)
                                    + " " + hour24 + ":" + min
                                    + ":" + sec);
                        }

                        @Override
                        public void onCancel() {

                        }
                    });
            /**
             * Pass Directly current time format it will return AM and PM if you set
             * false
             */
            custom.set24HourFormat(true);
            /**
             * Pass Directly current data and time to show when it pop up
             */
            custom.setDate(Calendar.getInstance());
            btnEventDateTime.setOnClickListener(
                    new View.OnClickListener() {

                        @Override
                        public void onClick(View v) {
                            custom.showDialog();
                        }
                    });
    }
    }

回答by Misagh Emamverdi

If you need to select the time right after the date selection you can simply show TimePickerDialogautomatically after date is selected. This is the easiest way.

如果您需要在选择日期后立即选择时间，您可以TimePickerDialog在选择日期后自动显示。这是最简单的方法。

While you have listener that is fired when date is selected with selected date, you can simply pass that selected date to TimePickerDialogand with a few customization in mdtp_time_picker_dialog.xmlyou can add a TextViewto show the selected text.

虽然您在选择日期时触发了侦听器，但您可以简单地将所选日期传递给TimePickerDialog并进行一些自定义，mdtp_time_picker_dialog.xml您可以添加一个TextView以显示所选文本。

Another option is merging mdtp_time_picker_dialog.xmland mdtp_date_picker_dialog.xmlthat are root layouts for date picker dialog and time picker dialog. You can set time picker part visibility as GONEand switch the visibility when you want to switch pickers.

另一个选项是合并mdtp_time_picker_dialog.xml，mdtp_date_picker_dialog.xml这是日期选择器对话框和时间选择器对话框的根布局。您可以将时间选择器部件的可见性设置为GONE并在要切换选择器时切换可见性。

The second solution is more difficult to implement because in addition to layouts, you have to merge all controls and listeners.

第二种解决方案更难实现，因为除了布局之外，您还必须合并所有控件和侦听器。

If you want the user to see both of the pickers, I think you actually need to design a new view yourself. That library layouts is not suitable for this.

如果您希望用户看到两个选择器，我认为您实际上需要自己设计一个新视图。那个库布局不适合这个。

回答by Misagh Emamverdi

You can call TimePickerafter DatePickerset Date. Like this..

您可以TimePicker在DatePicker设置日期后致电。像这样..

    String date_time = "";
    int mYear;
    int mMonth;
    int mDay;

    int mHour;
    int mMinute;

    et_show_date_time = (EditText) findViewById(R.id.et_show_date_time);
    btn_set_date_time = (Button) findViewById(R.id.btn_set_date_time);

    btn_set_date_time.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            datePicker();

        }
    });

Date Picker:

日期选择器：

    private void datePicker(){

    // Get Current Date
    final Calendar c = Calendar.getInstance();
    mYear = c.get(Calendar.YEAR);
    mMonth = c.get(Calendar.MONTH);
    mDay = c.get(Calendar.DAY_OF_MONTH);

    DatePickerDialog datePickerDialog = new DatePickerDialog(this,
            new DatePickerDialog.OnDateSetListener() {

                @Override
                public void onDateSet(DatePicker view, int year,int monthOfYear, int dayOfMonth) {

                    date_time = dayOfMonth + "-" + (monthOfYear + 1) + "-" + year;
                   //*************Call Time Picker Here ********************
                   tiemPicker();
                }
            }, mYear, mMonth, mDay);
       datePickerDialog.show();
    }

Time Picker

时间选择器

 private void tiemPicker(){
    // Get Current Time
    final Calendar c = Calendar.getInstance();
    mHour = c.get(Calendar.HOUR_OF_DAY);
    mMinute = c.get(Calendar.MINUTE);

    // Launch Time Picker Dialog
    TimePickerDialog timePickerDialog = new TimePickerDialog(this,
            new TimePickerDialog.OnTimeSetListener() {

                @Override
                public void onTimeSet(TimePicker view, int hourOfDay,int minute) {

                    mHour = hourOfDay;
                    mMinute = minute;

                    et_show_date_time.setText(date_time+" "+hourOfDay + ":" + minute);
                }
            }, mHour, mMinute, false);
    timePickerDialog.show();
}

--

——

回答by Ruslan Podurets

Googled this problem and found usefull Enamul Haque's answer. Modified his code little bit and got this result. Its quick solution and will be improved, but works nice)

用谷歌搜索这个问题并找到了有用的 Enamul Haque 的答案。稍微修改了他的代码并得到了这个结果。它的快速解决方案并将得到改进，但效果很好）

public class DateTimePicker {

    @NonNull
    private final Calendar calendar = Calendar.getInstance();
    @Nullable
    private DatePickerDialog datePickerDialog;
    @Nullable
    private TimePickerDialog timePickerDialog;
    @Nullable
    private ResultCallback<Date> dateResultCallback;

    public void showDialog(@NonNull Context context, long time) {
        calendar.setTimeInMillis(time);
        closeDialogs();
        showDatePicker(context);
    }

    @Nullable
    public ResultCallback<Date> getDateResultCallback() {
        return dateResultCallback;
    }

    public void setDateResultCallback(@Nullable ResultCallback<Date> dateResultCallback) {
        this.dateResultCallback = dateResultCallback;
    }

    public long getTime() {
        return calendar.getTimeInMillis();
    }

    private void closeDialogs() {
        if (datePickerDialog != null) {
            datePickerDialog.dismiss();
            datePickerDialog = null;
        }
        if (timePickerDialog != null) {
            timePickerDialog.dismiss();
            timePickerDialog = null;
        }
    }

    private DatePickerDialog.OnDateSetListener dateSetListener = new DatePickerDialog.OnDateSetListener() {
        @Override
        public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
            calendar.set(Calendar.YEAR, year);
            calendar.set(Calendar.MONTH, month);
            calendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
            timePicker(view.getContext());
        }
    };

    private TimePickerDialog.OnTimeSetListener timeSetListener = new TimePickerDialog.OnTimeSetListener() {

        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
            calendar.set(Calendar.MINUTE, minute);
            if (dateResultCallback != null) {
                dateResultCallback.onResult(calendar.getTime());
            }
        }
    };

    private void showDatePicker(@NonNull Context context) {
        datePickerDialog = new DatePickerDialog(context,
                dateSetListener,
                calendar.get(Calendar.YEAR),
                calendar.get(Calendar.MONTH),
                calendar.get(Calendar.DAY_OF_MONTH));
        datePickerDialog.show();
    }

    private void timePicker(@NonNull Context context) {
        timePickerDialog = new TimePickerDialog(context,
                timeSetListener,
                calendar.get(Calendar.HOUR_OF_DAY),
                calendar.get(Calendar.MINUTE),
                true);
        timePickerDialog.show();
    }

    public void release() {
        closeDialogs();
        dateResultCallback = null;
    }

}

Dialogs calls via method showDialog(...), possible to release object when it not need anymore (in onDestroy() in activity f.e). And again - thanks Enamul Haque for idea.

对话框通过方法 showDialog(...) 调用，可以在不再需要时释放对象（在活动 fe 中的 onDestroy() 中）。再次 - 感谢 Enamul Haque 的想法。

回答by Rajesh Naddy

Use this simple code.. I'm using this code in my Project..

使用这个简单的代码..我在我的项目中使用这个代码..

final Calendar currentDate = Calendar.getInstance();
date = Calendar.getInstance();
            DatePickerDialog datePickerDialog = new DatePickerDialog(getContext(), new DatePickerDialog.OnDateSetListener() {

                @Override
                public void onDateSet(DatePicker datePicker, int year, int monthOfYear, int dayOfMonth) {

                    date.set(year, monthOfYear, dayOfMonth);
                    new TimePickerDialog(getContext(), new TimePickerDialog.OnTimeSetListener() {
                        @Override
                        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                            date.set(Calendar.HOUR_OF_DAY, hourOfDay);
                            date.set(Calendar.MINUTE, minute);
                            // Log.v(TAG, "The choosen one " + date.getTime());
                            // Toast.makeText(getContext(),"The choosen one " + date.getTime(),Toast.LENGTH_SHORT).show();
                            datetime.setText(new SimpleDateFormat("dd-MMM-yyyy h:mm a").format(date.getTime()));
                        }
                    },currentDate.get(Calendar.HOUR_OF_DAY), currentDate.get(Calendar.MINUTE), false).show();

                }
            }, currentDate.get(Calendar.YEAR), currentDate.get(Calendar.MONTH), currentDate.get(Calendar.DATE));
            datePickerDialog.getDatePicker().setMinDate(currentDate.getTimeInMillis());
            datePickerDialog.show();

回答by Raghav Satyadev

This answer is basically an improvement in answer given by @Mayur Patel: https://stackoverflow.com/a/38604615/3994127

这个答案基本上是对@Mayur Patel 给出的答案的改进：https://stackoverflow.com/a/38604615/3994127

CustomDateTimePicker.java

自定义日期时间选择器.java

import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.support.v7.widget.AppCompatButton;
import android.view.View;
import android.view.Window;
import android.widget.DatePicker;
import android.widget.TimePicker;
import android.widget.ViewSwitcher;

import com.gotrack.gotrack.R;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

public class CustomDateTimePicker implements View.OnClickListener {
    private Calendar calendar_date = null;
    private ViewSwitcher viewSwitcher;
    private DatePicker datePicker;
    private TimePicker timePicker;
    private AppCompatButton btnDate, btnTime;

    private ICustomDateTimeListener iCustomDateTimeListener = null;

    private Dialog dialog;

    private boolean is24HourView = true, isAutoDismiss = true;

    private int selectedHour, selectedMinute;

    public CustomDateTimePicker(Context context,
                                ICustomDateTimeListener customDateTimeListener) {
        iCustomDateTimeListener = customDateTimeListener;

        dialog = new Dialog(context);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.setContentView(R.layout.date_time_picker);
        dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
            @Override
            public void onDismiss(DialogInterface dialog) {
                resetData();
            }
        });
    }

    private void setView() {
        btnDate = dialog.findViewById(R.id.btn_date);
        btnTime = dialog.findViewById(R.id.btn_time);
        dialog.findViewById(R.id.btn_set).setOnClickListener(this);
        dialog.findViewById(R.id.btn_cancel).setOnClickListener(this);
        viewSwitcher = dialog.findViewById(R.id.view_switcher);
        datePicker = dialog.findViewById(R.id.date_picker);
        timePicker = dialog.findViewById(R.id.time_picker);

        btnDate.setOnClickListener(this);
        btnTime.setOnClickListener(this);

        timePicker.setIs24HourView(is24HourView);
        timePicker.setCurrentHour(selectedHour);
        timePicker.setCurrentMinute(selectedMinute);

        datePicker.updateDate(calendar_date.get(Calendar.YEAR),
                calendar_date.get(Calendar.MONTH),
                calendar_date.get(Calendar.DATE));

        btnDate.performClick();
    }

    public void showDialog() {
        if (!dialog.isShowing()) {
            if (calendar_date == null)
                calendar_date = Calendar.getInstance();

            selectedHour = calendar_date.get(Calendar.HOUR_OF_DAY);
            selectedMinute = calendar_date.get(Calendar.MINUTE);

            dialog.show();

            setView();
        }
    }

    public CustomDateTimePicker setAutoDismiss(boolean isAutoDismiss) {
        this.isAutoDismiss = isAutoDismiss;
        return this;
    }

    public CustomDateTimePicker dismissDialog() {
        if (!dialog.isShowing())
            dialog.dismiss();

        return this;
    }

    public CustomDateTimePicker setDate(Calendar calendar) {
        if (calendar != null)
            calendar_date = calendar;
        return this;
    }

    public CustomDateTimePicker setDate(Date date) {
        if (date != null) {
            calendar_date = Calendar.getInstance();
            calendar_date.setTime(date);
        }
        return this;
    }

    public CustomDateTimePicker setDate(int year, int month, int day) {
        if (month < 12 && month >= 0 && day < 32 && day >= 0 && year > 100
                && year < 3000) {
            calendar_date = Calendar.getInstance();
            calendar_date.set(year, month, day);
        }
        return this;
    }

    public CustomDateTimePicker setTimeIn24HourFormat(int hourIn24Format, int minute) {
        if (hourIn24Format < 24 && hourIn24Format >= 0 && minute >= 0
                && minute < 60) {
            if (calendar_date == null)
                calendar_date = Calendar.getInstance();

            calendar_date.set(calendar_date.get(Calendar.YEAR),
                    calendar_date.get(Calendar.MONTH),
                    calendar_date.get(Calendar.DAY_OF_MONTH), hourIn24Format,
                    minute);

            is24HourView = true;
        }
        return this;
    }

    public CustomDateTimePicker setTimeIn12HourFormat(int hourIn12Format, int minute,
                                                      boolean isAM) {
        if (hourIn12Format < 13 && hourIn12Format > 0 && minute >= 0
                && minute < 60) {
            if (hourIn12Format == 12)
                hourIn12Format = 0;

            int hourIn24Format = hourIn12Format;

            if (!isAM)
                hourIn24Format += 12;

            if (calendar_date == null)
                calendar_date = Calendar.getInstance();

            calendar_date.set(calendar_date.get(Calendar.YEAR),
                    calendar_date.get(Calendar.MONTH),
                    calendar_date.get(Calendar.DAY_OF_MONTH), hourIn24Format,
                    minute);

            is24HourView = false;
        }
        return this;
    }

    public CustomDateTimePicker set24HourFormat(boolean is24HourFormat) {
        is24HourView = is24HourFormat;
        return this;
    }

    public interface ICustomDateTimeListener {
        void onSet(Dialog dialog, Calendar calendarSelected,
                   Date dateSelected, int year, String monthFullName,
                   String monthShortName, int monthNumber, int day,
                   String weekDayFullName, String weekDayShortName, int hour24,
                   int hour12, int min, int sec, String AM_PM);

        void onCancel();
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btn_date:
                btnTime.setEnabled(true);
                btnDate.setEnabled(false);

                if (viewSwitcher.getCurrentView() != datePicker) {
                    viewSwitcher.showPrevious();
                }
                break;

            case R.id.btn_time:
                btnTime.setEnabled(false);
                btnDate.setEnabled(true);
                if (viewSwitcher.getCurrentView() == datePicker) {
                    viewSwitcher.showNext();
                }
                break;


            case R.id.btn_set:
                if (iCustomDateTimeListener != null) {
                    int month = datePicker.getMonth();
                    int year = datePicker.getYear();
                    int day = datePicker.getDayOfMonth();
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    selectedHour = timePicker.getHour();
                    selectedMinute = timePicker.getMinute();
                } else {
                    selectedHour = timePicker.getCurrentHour();
                    selectedMinute = timePicker.getCurrentMinute();
                }

                    calendar_date.set(year, month, day, selectedHour,
                            selectedMinute);

                    iCustomDateTimeListener.onSet(dialog, calendar_date,
                            calendar_date.getTime(), calendar_date
                                    .get(Calendar.YEAR),
                            getMonthFullName(calendar_date.get(Calendar.MONTH)),
                            getMonthShortName(calendar_date.get(Calendar.MONTH)),
                            calendar_date.get(Calendar.MONTH), calendar_date
                                    .get(Calendar.DAY_OF_MONTH),
                            getWeekDayFullName(calendar_date
                                    .get(Calendar.DAY_OF_WEEK)),
                            getWeekDayShortName(calendar_date
                                    .get(Calendar.DAY_OF_WEEK)), calendar_date
                                    .get(Calendar.HOUR_OF_DAY),
                            getHourIn12Format(calendar_date
                                    .get(Calendar.HOUR_OF_DAY)), calendar_date
                                    .get(Calendar.MINUTE), calendar_date
                                    .get(Calendar.SECOND), getAMPM(calendar_date));
                }
                if (dialog.isShowing() && isAutoDismiss)
                    dialog.dismiss();
                break;

            case R.id.btn_cancel:
                if (iCustomDateTimeListener != null)
                    iCustomDateTimeListener.onCancel();
                if (dialog.isShowing())
                    dialog.dismiss();
                break;
        }
    }

    /**
     * @param date       date in String
     * @param fromFormat format of your <b>date</b> eg: if your date is 2011-07-07
     *                   09:09:09 then your format will be <b>yyyy-MM-dd hh:mm:ss</b>
     * @param toFormat   format to which you want to convert your <b>date</b> eg: if
     *                   required format is 31 July 2011 then the toFormat should be
     *                   <b>d MMMM yyyy</b>
     * @return formatted date
     */
    public static String convertDate(String date, String fromFormat,
                                     String toFormat) {
        try {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat(fromFormat, Locale.getDefault());
            Date d = simpleDateFormat.parse(date);
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(d);

            simpleDateFormat = new SimpleDateFormat(toFormat, Locale.getDefault());
            simpleDateFormat.setCalendar(calendar);
            date = simpleDateFormat.format(calendar.getTime());

        } catch (Exception e) {
            e.printStackTrace();
        }

        return date;
    }

    private String getMonthFullName(int monthNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.MONTH, monthNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMMM", Locale.getDefault());
        simpleDateFormat.setCalendar(calendar);

        return simpleDateFormat.format(calendar.getTime());
    }

    private String getMonthShortName(int monthNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.MONTH, monthNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMM", Locale.getDefault());
        simpleDateFormat.setCalendar(calendar);

        return simpleDateFormat.format(calendar.getTime());
    }

    private String getWeekDayFullName(int weekDayNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.DAY_OF_WEEK, weekDayNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEEE", Locale.getDefault());
        simpleDateFormat.setCalendar(calendar);

        return simpleDateFormat.format(calendar.getTime());
    }

    private String getWeekDayShortName(int weekDayNumber) {
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.DAY_OF_WEEK, weekDayNumber);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EE", Locale.getDefault());
        simpleDateFormat.setCalendar(calendar);

        return simpleDateFormat.format(calendar.getTime());
    }

    private int getHourIn12Format(int hour24) {
        int hourIn12Format = 0;

        if (hour24 == 0)
            hourIn12Format = 12;
        else if (hour24 <= 12)
            hourIn12Format = hour24;
        else
            hourIn12Format = hour24 - 12;

        return hourIn12Format;
    }

    private String getAMPM(Calendar calendar) {
        return (calendar.get(Calendar.AM_PM) == (Calendar.AM)) ? "AM"
                : "PM";
    }

    private CustomDateTimePicker resetData() {
        calendar_date = null;
        is24HourView = true;
        return this;
    }

    public static String pad(int integerToPad) {
        if (integerToPad >= 10 || integerToPad < 0)
            return String.valueOf(integerToPad);
        else
            return "0" + String.valueOf(integerToPad);
    }
}

date_time_picker.xml

date_time_picker.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <android.support.constraint.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="15dp">

        <android.support.v7.widget.AppCompatButton
            android:id="@+id/btn_date"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginEnd="5dp"
            android:text="@string/set_date"
            app:backgroundTint="@color/colorPrimary"
            app:layout_constraintEnd_toStartOf="@+id/btn_time"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <android.support.v7.widget.AppCompatButton
            android:id="@+id/btn_time"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="5dp"
            android:text="@string/set_time"
            app:backgroundTint="@color/colorPrimary"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toEndOf="@+id/btn_date"
            app:layout_constraintTop_toTopOf="parent" />

        <android.support.v7.widget.AppCompatButton
            android:id="@+id/btn_set"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginEnd="5dp"
            android:text="@string/set"
            app:backgroundTint="@color/colorPrimary"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/btn_cancel"
            app:layout_constraintStart_toStartOf="parent" />

        <android.support.v7.widget.AppCompatButton
            android:id="@+id/btn_cancel"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="5dp"
            android:text="@string/cancel"
            app:backgroundTint="@color/colorPrimary"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toEndOf="@+id/btn_set" />

        <ViewSwitcher
            android:id="@+id/view_switcher"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            app:layout_constraintBottom_toTopOf="@+id/btn_set"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/btn_date">

            <DatePicker
                android:id="@+id/date_picker"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:theme="@style/DialogTheme" />

            <TimePicker
                android:id="@+id/time_picker"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:theme="@style/DialogTheme" />
        </ViewSwitcher>
    </android.support.constraint.ConstraintLayout>
</RelativeLayout>

DialogTheme style

DialogTheme 风格

<style name="DialogTheme">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
</style>

Calling code

调用代码

new CustomDateTimePicker(context,
        new CustomDateTimePicker.ICustomDateTimeListener() {
            @Override
            public void onSet(Dialog dialog, Calendar calendarSelected,
                              Date dateSelected, int year,
                              String monthFullName,
                              String monthShortName,
                              int monthNumber, int date,
                              String weekDayFullName,
                              String weekDayShortName, int hour24,
                              int hour12,
                              int min, int sec, String AM_PM) {

            }

            @Override
            public void onCancel() {

            }
        }).set24HourFormat(true).setDate(Calendar.getInstance())
        .showDialog();

回答by Chittu

You Can Get DateAnd TimeOne By One Using PickersIn Android.

你可以得到Date与Time一个接一个使用Pickers在Android中。

Calendar getDate = Calendar.getInstance();

         cDay = getDate.get(Calendar.DAY_OF_MONTH);
         cMonth = getDate.get(Calendar.MONTH);
         cYear = getDate.get(Calendar.YEAR);

         timePickerDialog = new TimePickerDialog(DesignActivity.this, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {

                final String AM_PM ;

                if (hourOfDay > 12) {
                    hourOfDay -= 12;
                    AM_PM = "pm";
                } else if (hourOfDay == 0) {
                    hourOfDay += 12;
                    AM_PM = "am";
                } else if (hourOfDay == 12)
                    AM_PM = "pm";
                else
                    AM_PM = "am";

                hour1 = hourOfDay;
                minutes1 = minute;

                DatePickerDialog datePicker = new DatePickerDialog(DesignActivity.this, new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {

                        cYear = year;
                        cMonth = month;
                        cDay = dayOfMonth;

                        editText.setText(hour1 + ":" +minutes1 + AM_PM  + "     " + cDay + "/" + cMonth + "/" + cYear);

                    }
                },cYear,cMonth,cDay);

                datePicker.show();

            }
        },hour1,minutes1,false);

        timePickerDialog.show();

    }
});

If You Will Need More Explanation About Click This.

如果您需要更多解释，请 单击此。

回答by Yogesh Umesh Vaity

Kotlin

科特林

Here's the tested Kotlin code for combining the DatePickerDialogand TimePickerDialogtogether. It becomes simpler because of the support of the closures in Kotlin. The following function should be placed in your Fragmentor Activity. The requireContext()method is a member of Fragment. If you are using Activity, use applicationContextinstead.

这是用于将DatePickerDialog和TimePickerDialog组合在一起的经过测试的 Kotlin 代码。由于 Kotlin 中闭包的支持，它变得更简单。以下函数应放置在您的Fragment或Activity. 该requireContext()方法是 的成员Fragment。如果您正在使用Activity，请applicationContext改用。

private fun pickDateTime() {
    val currentDateTime = Calendar.getInstance()
    val startYear = currentDateTime.get(Calendar.YEAR)
    val startMonth = currentDateTime.get(Calendar.MONTH)
    val startDay = currentDateTime.get(Calendar.DAY_OF_MONTH)
    val startHour = currentDateTime.get(Calendar.HOUR_OF_DAY)
    val startMinute = currentDateTime.get(Calendar.MINUTE)

    DatePickerDialog(requireContext(), DatePickerDialog.OnDateSetListener { _, year, month, day ->
        TimePickerDialog(requireContext(), TimePickerDialog.OnTimeSetListener { _, hour, minute ->
            val pickedDateTime = Calendar.getInstance()
            pickedDateTime.set(year, month, day, hour, minute)
            doSomethingWith(pickedDateTime)
        }, startHour, startMinute, false).show()
    }, startYear, startMonth, startDay).show()
}

Call the above function in onClickListenerof your button as following:

调用onClickListener按钮的上述函数如下：

button.setOnClickListener { pickDateTime() }

That's it!

就是这样！

If you want to show clock in 12 hour or 24 hour format depending on user's settings, replace falsewith DateFormat.is24HourFormat(requireContext())

如果要根据用户的设置以 12 小时或 24 小时格式显示时钟，请替换false为DateFormat.is24HourFormat(requireContext())

回答by swdmnd

Based on @Yogesh Umesh Vaity's answer, I made an object for showing a DateTimePicker in Kotlin.

根据@ Yogesh Umesh Vaity 的回答，我创建了一个对象，用于在 Kotlin 中显示 DateTimePicker。

class DateTimePicker(val context: Context, var pickTime:Boolean = false, var calendar: Calendar = Calendar.getInstance(),
                     var callback: (it : DateTimePicker) -> Unit) {

    companion object{
        @JvmStatic
        fun getFormat(format : String) : String{
            when(format){
                "d" -> return "dd/MM/yyyy"
                "t" -> return "HH:mm"
                "dt" -> return "dd/MM/yyyy HH:mm"
            }
            return "dd/MM/yyyy"
        }
    }

    fun show(){
        val startYear = calendar.get(Calendar.YEAR)
        val startMonth = calendar.get(Calendar.MONTH)
        val startDay = calendar.get(Calendar.DAY_OF_MONTH)
        val startHour = calendar.get(Calendar.HOUR_OF_DAY)
        val startMinute = calendar.get(Calendar.MINUTE)

        DatePickerDialog(context, DatePickerDialog.OnDateSetListener { _, year, month, day ->
            if(pickTime) {
                TimePickerDialog(context, TimePickerDialog.OnTimeSetListener { _, hour, minute ->
                    calendar.set(year, month, day, hour, minute)
                    callback(this)
                }, startHour, startMinute, true).show()
            } else {
                calendar.set(year,month,day)
                callback(this)
            }
        }, startYear, startMonth, startDay).show()
    }

    fun showTime(){
        val startYear = calendar.get(Calendar.YEAR)
        val startMonth = calendar.get(Calendar.MONTH)
        val startDay = calendar.get(Calendar.DAY_OF_MONTH)
        val startHour = calendar.get(Calendar.HOUR_OF_DAY)
        val startMinute = calendar.get(Calendar.MINUTE)

        TimePickerDialog(context, TimePickerDialog.OnTimeSetListener { _, hour, minute ->
            calendar.set(startYear, startMonth, startDay, hour, minute)
            callback(this)
        }, startHour, startMinute, true).show()
    }
}

You could use the object from your Activity like this:

您可以像这样使用 Activity 中的对象：

// Open Date Picker only and set an EditText
DateTimePicker(this){
    val sdf = SimpleDateFormat(DateTimePicker.getFormat("d"), Locale.getDefault())
    editText.setText(sdf.format(it.calendar.time))
}.show()

// Open Date Picker then Time picker and set an EditText
DateTimePicker(this, true){
    val sdf = SimpleDateFormat(DateTimePicker.getFormat("dt"), Locale.getDefault())
    editText.setText(sdf.format(it.calendar.time))
}.show()

// Open Time Picker only and set an EditText
DateTimePicker(this){
    val sdf = SimpleDateFormat(DateTimePicker.getFormat("t"), Locale.getDefault())
    editText.setText(sdf.format(it.calendar.time))
}.showTime()

// Use your own calendar object if you prefer to use your pre-configured calendar
val myCalendar = Calendar.getInstance()
myCalendar.set(Calendar.YEAR, 1995)
DateTimePicker(this, false, myCalendar){
    val sdf = SimpleDateFormat(DateTimePicker.getFormat("d"), Locale.getDefault())
    editText.setText(sdf.format(it.calendar.time))
}.show()