Android鸳鸯刀之DatePicker、TimePicker之明年今日

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鸳鸯刀

        鸳鸯刀中藏有大秘密&＃xff1a;仁者无敌&＃xff01;

        今天我们学习如何利用Android平台“鸳鸯刀”DatePicker、TimePicker来设置日期和时间&＃xff0c;下面给出该情景的案例&＃xff1a;

一、案例技术要点

1.为DatePicker、TimePicker所在的Activity实现OnDateChangedListener、OnTimeChangedListener两类监听&＃xff0c;并且为它们引入这两个监听。
2.datePicker.init(...)&＃xff1a;初始化日期。
3.timePicker.setIs24HourView(true)&＃xff1a;设置时间显示格式为24小时制。

二、案例代码陈列

AndroidManifest.xml

strings.xml

DateTimePicker输入日期时间
main.xml


DateTimePickerMainActivity.java

package com.android.datepicker;import java.text.SimpleDateFormat;
import java.util.Calendar;import android.app.Activity;
import android.os.Bundle;
import android.widget.DatePicker;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.TimePicker;
import android.widget.TimePicker.OnTimeChangedListener;/*** DatePicker、TimePicker案例&＃xff1a;设置日期时间* 可输入日期&＃xff08;1900-1-1至2100-12-31&＃xff09;* &＃64;author lynnli1229 */
public class DateTimePickerMainActivity extends Activity implements OnDateChangedListener, OnTimeChangedListener {private TextView textView;private DatePicker datePicker;private TimePicker timePicker;&＃64;Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);datePicker &＃61; (DatePicker) findViewById(R.id.datePicker);timePicker &＃61; (TimePicker) findViewById(R.id.timePicker);textView &＃61; (TextView) findViewById(R.id.textView);// 初始化年月日datePicker.init(2001, 1, 25, this);// 设置24小时制显示timePicker.setIs24HourView(true);timePicker.setOnTimeChangedListener(this);}&＃64;Overridepublic void onTimeChanged(TimePicker view, int hourOfDay, int minute) {Toast.makeText(this, "hourOfDay: " &＃43; hourOfDay &＃43; ", minute: " &＃43; minute,Toast.LENGTH_LONG).show();}&＃64;Overridepublic void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {Calendar calendar &＃61; Calendar.getInstance();calendar.set(datePicker.getYear(), datePicker.getMonth(),datePicker.getDayOfMonth(), timePicker.getCurrentHour(),timePicker.getCurrentMinute());SimpleDateFormat sdf &＃61; new SimpleDateFormat("yyyy年MM月dd日 HH:mm");textView.setText(sdf.format(calendar.getTime()));}
}
三、案例效果展示