안드로이드 시간/날짜 예약 예제

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:orientation="vertical">
    
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
    
    <Chronometer
        android:id="@+id/chronometer1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:format="예약에 걸린 시간 %s"
        android:gravity="center"
        android:textSize="20dp"/>
        
    
    <Button
        android:id="@+id/btnStart"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="예약 시작"/>
    
    </LinearLayout>
    
    <RadioGroup
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        
        <RadioButton
            android:id="@+id/rdoCal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="날짜설정 (캘린더뷰)" />
        
        <RadioButton
            android:id="@+id/rdoTime"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="시간 설정"/>
        
    </RadioGroup>
    
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1">
      
        <FrameLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

        <CalendarView
            android:id="@+id/calendarView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:showWeekNumber="false"/>
        <TimePicker
            android:id="@+id/timePicker"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"/>
    
        </FrameLayout>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#CCCCCC">

        <Button
            android:id="@+id/btnEnd"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="예약완료"/>

        <TextView
            android:id="@+id/tvYear"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="0000"/>

        <TextView
            android:id="@+id/tv1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="년"/>

        <TextView
            android:id="@+id/tvmonth"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="00"/>

        <TextView
            android:id="@+id/tv2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="월"/>

        <TextView
            android:id="@+id/tvday"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="00"/>
        <TextView
            android:id="@+id/tv3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="일"/>

        <TextView
            android:id="@+id/tvhour"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="00"/>

        <TextView
            android:id="@+id/tv4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="시"/>

        <TextView
            android:id="@+id/tvmin"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="00"/>

        <TextView
            android:id="@+id/tv5"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="분 예약됨"/>

    </LinearLayout>

</LinearLayout>

main.java

package com.cookandroid.day_ex01;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.View;
import android.widget.Button;
import android.widget.CalendarView;
import android.widget.Chronometer;
import android.widget.RadioButton;
import android.widget.TextView;
import android.widget.TimePicker;

public class MainActivity extends AppCompatActivity {

    Chronometer chrono;
    Button btnStart, btnEnd;
    RadioButton rdoCal, rdoTime;
    CalendarView calView;
    TimePicker tPicker;
    TextView tvYear,tvMonth,tvDay,tvHour,tvMinute;
    int selectYear,selectMonth,selectDay;




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

        setTitle("시간예약");

        btnStart = (Button) findViewById(R.id.btnStart);
        btnEnd = (Button) findViewById(R.id.btnEnd);

        chrono = (Chronometer) findViewById(R.id.chronometer1);
        rdoCal = (RadioButton) findViewById(R.id.rdoCal);
        rdoTime = (RadioButton) findViewById(R.id.rdoTime);

        tPicker = (TimePicker) findViewById(R.id.timePicker);
        calView = (CalendarView) findViewById(R.id.calendarView1);

        tvYear = (TextView) findViewById(R.id.tvYear);
        tvMonth = (TextView) findViewById(R.id.tvmonth);
        tvDay = (TextView) findViewById(R.id.tvday);
        tvHour = (TextView) findViewById(R.id.tvhour);
        tvMinute = (TextView) findViewById(R.id.tvmin);

        tPicker.setVisibility(View.INVISIBLE);
        calView.setVisibility(View.INVISIBLE);

        rdoCal.setOnClickListener(new View.OnClickListener(){
            public void onClick(View v){
                tPicker.setVisibility(View.INVISIBLE);
                calView.setVisibility(View.VISIBLE);
            }
        });

        rdoTime.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                tPicker.setVisibility(View.VISIBLE);
                calView.setVisibility(View.INVISIBLE);
            }
        });

        btnStart.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                chrono.setBase(SystemClock.elapsedRealtime());
                chrono.start();
                chrono.setTextColor(Color.RED);
            }
        });

        btnEnd.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                chrono.stop();
                chrono.setTextColor(Color.BLUE);

                tvYear.setText(Integer.toString(selectYear));
                tvMonth.setText(Integer.toString(selectMonth));
                tvDay.setText(Integer.toString(selectDay));

                tvHour.setText(Integer.toString(tPicker.getCurrentHour()));
                tvMinute.setText(Integer.toString(tPicker.getCurrentMinute()));
            }
        });

        calView.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
            @Override
            public void onSelectedDayChange(@NonNull CalendarView View, int year, int month, int dayOfMonth) {
                selectYear=year;
                selectMonth=month+1;
                selectDay = dayOfMonth;
            }
        });

    }
}

안드로이드 예약