android—DatePicker 和TimePicker显示日期以及使用TimePickerDialog,DatePickerDialog来专门实现时间选择对话框

datePicker 和timePicker 显示日期和时间的控件

1.二个控件初始化

2.int定义 年 月 日 时 分

3.Calendar  类时间操作 创建Calendar对象 要 Calendar.getinStance();

4.    year=calendar.get(Calendar.Year);

        Month=calendar.get(Calendar.MONTH)+1;//初始化为0；

        Day=calendar.get(Calendar.DAY_OF_MONTH);

        Hour=calendar.get(Calendar.HOUR_OF_DAY);

        Minute=calendar.get(Calendar.MINUTE);

5.设置头时间 settile（year + "-" + Month + "-" + Day + " " + Hour + ":" + Minute）;

6.  设置监听事件来可以修改时间

        datePicker.init(year, calendar.get(Calendar.MONTH), Day, new DatePicker.OnDateChangedListener() {

                @Override

                public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

                setTitle(year + "-" + (monthOfYear + 1) + "-" + dayOfMonth);

                }

               });

        timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {

                @Override

                public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {

                setTitle(hourOfDay + ":" + minute);

                }

                });

7.使用TimePickerDialog来专门实现时间选择对话框

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

          @Override

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

              setTitle(year + "-" + (monthOfYear + 1) + "-" + dayOfMonth);

          }

      }, year, calendar.get(Calendar.DAY_OF_MONTH), Day).show();

        new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {

            @Override

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

                setTitle(hourOfDay + ":" + minute);

            }

        }, Hour, Minute, true).show();
    MainActivity

package com.example.wuzuo.timedemo;

import android.app.DatePickerDialog;
import android.app.TimePickerDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.CalendarView;
import android.widget.DatePicker;
import android.widget.TimePicker;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {
private DatePicker datePicker;
private TimePicker timePicker;
private Calendar calendar;
private int year;
private int Month;
private int Day;
private int Hour;
private int Minute;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
calendar=Calendar.getInstance();
year=calendar.get(Calendar.YEAR);
Month=calendar.get(Calendar.MONTH)+1;
Day=calendar.get(Calendar.DAY_OF_MONTH);
Hour=calendar.get(Calendar.HOUR_OF_DAY);
Minute=calendar.get(Calendar.MINUTE);
datePicker= (DatePicker) findViewById(R.id.datePicker1);
timePicker= (TimePicker) findViewById(R.id.timePicker1);
setTitle(year + "-" + Month + "-" + Day + " " + Hour + ":" + Minute);
datePicker.init(year, calendar.get(Calendar.MONTH), Day, new DatePicker.OnDateChangedListener() {
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
setTitle(year + "-" + (monthOfYear + 1) + "-" + dayOfMonth);
}
});
timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
setTitle(hourOfDay + ":" + minute);
}
});
new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
setTitle(year + "-" + (monthOfYear + 1) + "-" + dayOfMonth);
}
}, year, calendar.get(Calendar.DAY_OF_MONTH), Day).show();
new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
setTitle(hourOfDay + ":" + minute);
}
}, Hour, Minute, true).show();
}
}
activity_main
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>

<DatePicker
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="3"
android:id="@+id/datePicker1"
/>
<TimePicker
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="5"
android:id="@+id/timePicker1"
/>
</LinearLayout>