Android碧水剑之DatePickerDialog、TimePickerDialog之岁月如梭

传送门 ☞ Android兵器谱 ☞ 转载请注明 ☞ http://blog.youkuaiyun.com/leverage_1229

碧水剑
        岳灵珊转头向山谷瞧了一眼，叫道：“这把剑，这把剑！”令狐冲又是一惊，知道小师妹的长剑是一口断金削铁的利器，叫做“碧水剑”，三年前师父在浙江龙泉得来，小师妹一见之下爱不释手，向师父连求数次，师父始终不给，直至今年她十八岁生日，师父才给了她当生日礼物，这一下堕入了深谷，再也难以取回，今次当真是铸成大错了。

        今天我们学习如何利用Android平台“碧水剑”DatePickerDialog、TimePickerDialog来显示日期时间对话框，下面给出该情景的案例：

一、案例技术要点

1.时间选择对话框构造方法：new TimePickerDialog(...)。
第二个参数表示引入时间设置监听器对象MyTimeSetListener
最后一个参数标示是否按24小时制显示
2.日期选择对话框构造方法：new DatePickerDialog(...)。
第二个参数表示引入日期设置监听器对象MyDateSetListener
3.为TimePickerDialog新增自定义的时间设置监听MyTimeSetListener，并且实现OnTimeSetListener接口的onTimeSet(...)方法。
4.为DatePickerDialog新增自定义的日期设置监听MyDateSetListener，并且实现OnDateSetListener接口的onDateSet(...)方法。

二、案例代码陈列

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.android.clock"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".DateTimePickerDialogMainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

strings.xml

<resources>
    <string name="app_name">DateTimePickerDialog显示日期时间对话框</string>
</resources>

main.xml

<?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" >

    <AnalogClock
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    
    <DigitalClock 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="18sp"/>
    
    <Button 
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示TimePickDialog" />
    
    <Button 
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示DatePickDialog" />
</LinearLayout>

DateTimePickerDialogMainActivity.java

package com.android.clock;

import java.util.Calendar;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TimePicker;
import android.widget.Toast;

/**
 * DatePickerDialog、TimePickerDialog案例：日期时间显示对话框
 * @author lynnli1229
 */
public class DateTimePickerDialogMainActivity extends Activity implements OnClickListener {
    private Button button1, button2;
    private int hourOfDay, minute, year, monthOfYear, dayOfMonth;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        button1 = (Button) findViewById(R.id.button1);
        button2 = (Button) findViewById(R.id.button2);
        button1.setOnClickListener(this);
        button2.setOnClickListener(this);
        //获取当前时间
        Calendar calendar = Calendar.getInstance();
        year = calendar.get(Calendar.YEAR);
        monthOfYear = calendar.get(Calendar.MONTH);
        dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);
        hourOfDay = calendar.get(Calendar.HOUR_OF_DAY);
        minute = calendar.get(Calendar.MINUTE);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.button1:
            TimePickerDialog timePickerDialog = new TimePickerDialog(this, new MyTimeSetListener(), hourOfDay, minute, true);
            timePickerDialog.show();
            break;

        case R.id.button2:
            DatePickerDialog datePickerDialog = new DatePickerDialog(this, new MyDateSetListener(), year, monthOfYear, dayOfMonth);
            datePickerDialog.show();
            break;
        }
        
    }

    private class MyTimeSetListener implements OnTimeSetListener {
        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            Toast.makeText(DateTimePickerDialogMainActivity.this, "hourOfDay: " + hourOfDay + ", minute: " + minute, Toast.LENGTH_LONG).show();
        }
    }

    private class MyDateSetListener implements OnDateSetListener {
        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
            Toast.makeText(DateTimePickerDialogMainActivity.this, "year: " + year + ", monthOfYear: " + monthOfYear + ", dayOfMonth: " + dayOfMonth, Toast.LENGTH_LONG).show();
        }
        
    }
}

三、案例效果展示