时间、日期选择器DatePicker、TimePicker

java代码

package com.example.zhang.choosedate;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.TimePicker;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

    DatePicker datePicker;
    TimePicker timePicker;
    EditText editText;

//定义五个记录当前时间的变量
private int year, month, day, hour, minute;

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

        datePicker = (DatePicker) findViewById(R.id.dataPicker);
        timePicker = (TimePicker) findViewById(R.id.timePicker);
        editText = (EditText) findViewById(R.id.editText);

//获取当前的年月日小时分
        Calendar c = Calendar.getInstance();
        year = c.get(Calendar.YEAR);
        month = c.get(Calendar.MONTH);
        day = c.get(Calendar.DAY_OF_MONTH);
        hour = c.get(Calendar.HOUR);
        minute = c.get(Calendar.MINUTE);

//初始化DatePicker组件，初始化指定监听器
        datePicker.init(year, month, day, new DatePicker.OnDateChangedListener() {
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                MainActivity.this.year = year;
                MainActivity.this.month = monthOfYear;
                MainActivity.this.day = dayOfMonth;
//显示当前的日期、时间
                showDate(year, monthOfYear, dayOfMonth, hour, minute);
            }
        });

//为TimePicker指定监听器
        timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
                MainActivity.this.hour = hourOfDay;
                MainActivity.this.minute = minute;
//显示当前的日期、时间
                showDate(year, month, day, hourOfDay, minute);
            }
        });


        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
    }

//定义在EditText中显示当前日期、时间的方法
private void showDate(int year, int month, int day, int hour, int minute){
        editText.setText("您的购买日期为:" + year + "年" + month + "月" + day + "日" + hour + "时" + minute + "分");
    }


@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
    }

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();

//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
        }

return super.onOptionsItemSelected(item);
    }
}

xml代码

<?xml version="1.0" encoding="utf-8"?>
<!--ScrollView可以让更多的组件通过手指上下滑动而显示在屏幕窗口中-->
<!--这里要好好注意一下格式-->
<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"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.example.zhang.choosedate.MainActivity"
tools:showIn="@layout/activity_main">
<TextView
 android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="#000"
android:textSize="20dp"
android:text="请填写您购书的时间，谢谢！"/>
<DatePicker
 android:id="@+id/dataPicker"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginTop="10dp"
android:calendarViewShown="true"
android:endYear="2020"
android:maxDate="12/31/2019"
android:minDate="12/31/1990"
android:spinnersShown="true"
android:startYear="2015"/>
<TimePicker
 android:id="@+id/timePicker"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:layout_gravity="center_vertical"/>
<EditText
 android:id="@+id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:singleLine="false"/>
</LinearLayout>

效果图