DatePicker和TimePicker来展示时间的设置

TimePicker来展示时分秒

DatePicker来展示年月日

代码实现

• 页面布局的实现

<?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:id="@+id/datePicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
       />
    <TimePicker
        android:id="@+id/timePicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

• 功能的实现

  datePicker=(DatePicker) findViewById(R.id.datePicker);
        timePicker=(TimePicker) findViewById(R.id.timePicker);
        //获取一个日历对象
        calendar=Calendar.getInstance();
        //获取年月日时分秒的信息
        year=calendar.get(Calendar.YEAR);
//        //它是从零开始计月份的
        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);
        setTitle(year+":"+month+":"+day+":"+hour+":"+minute);

对时间的设置进行初始化 使用OnDateChangedListener来监听时间的变化进行显示

 //初始化操作
        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);
            }
        });

对时分秒的设置进行初始化 使用OnTimeChangedListener来监听时间的变化进行显示

timePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {
         @Override
         public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
             setTitle(hourOfDay+":"+minute);
         }
     });

我们一对话框的形式

*展示时间 使用 OnDateSetListener来监听时间的变化进行显示

        new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
                setTitle(year+":"+month+":"+dayOfMonth);
            }
        },year,calendar.get(Calendar.MINUTE),day).show();

*展示时分 使用 OnTimeSetListener来监听时间的变化进行显示

  //以对话框的形式展示时分秒
        new TimePickerDialog(this, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                setTitle(hourOfDay+":"+minute);
            }
        },hour,minute,true).show();