Android控件之TimePicker和DatePicker

Android控件之TimePicker和DatePicker

1 Picker简介

DatePicker和TimePicker分别提供日期和时间的选择试图；通过它们得到的日期和时间是格式化的。

2 Picker示例

写一个activity，包含一个“日期”按钮和一个“时间”按钮。
点击“日期”按钮，进入“日期”选择界面。
点击“时间”按钮，进入“时间”选择界面。

应用层代码

package com.skywang.picker;

import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.support.v4.app.DialogFragment;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.app.DatePickerDialog;
import     android.text.format.DateFormat;
import android.widget.TimePicker;
import android.widget.DatePicker;
import android.widget.Toast;
import android.support.v4.app.FragmentActivity;
import android.util.Log;

import java.util.Calendar;

public class PickerTest extends FragmentActivity {
    private static final String TAG = "SKYWANG";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.picker_test);
    }
    
    // "时间"按钮onClick
    public void showTimePickerDialog(View v) {
        DialogFragment newFragment = new TimePickerFragment();
        newFragment.show(getSupportFragmentManager(), "timePicker");
    }
    
    public static class TimePickerFragment extends DialogFragment
        implements TimePickerDialog.OnTimeSetListener {
    
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            // Use the current time as the default values for the picker
            final Calendar c = Calendar.getInstance();
            int hour = c.get(Calendar.HOUR_OF_DAY);
            int minute = c.get(Calendar.MINUTE);
            
            // Create a new instance of TimePickerDialog and return it
            return new TimePickerDialog(getActivity(), this, hour, minute,
                    DateFormat.is24HourFormat(getActivity()));
        }
        
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            Log.d(TAG, "hour:"+hourOfDay+", minute: "+minute);
        }
    }
    
    // “日期”按钮onClick
    public void showDatePickerDialog(View v) {
        DialogFragment newFragment = new DatePickerFragment();
        newFragment.show(getSupportFragmentManager(), "datePicker");
    }
    
    public static class DatePickerFragment extends DialogFragment
        implements DatePickerDialog.OnDateSetListener {
    
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            // Use the current date as the default date in the picker
            final Calendar c = Calendar.getInstance();
            int year = c.get(Calendar.YEAR);
            int month = c.get(Calendar.MONTH);
            int day = c.get(Calendar.DAY_OF_MONTH);
            
            // Create a new instance of DatePickerDialog and return it
            return new DatePickerDialog(getActivity(), this, year, month, day);
        }
        
        public void onDateSet(DatePicker view, int year, int month, int day) {
            Log.d(TAG, "year:"+year+", month: "+month+", day:"+day);
        }
    }
        
}

layout文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    
    <Button 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"
    android:text="@string/pick_time" 
    android:onClick="showTimePickerDialog" />

    <Button 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"
    android:text="@string/pick_date" 
    android:onClick="showDatePickerDialog" />
    
</LinearLayout>

manifest文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.skywang.picker"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.skywang.picker.PickerTest"
            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>

点击下载：源代码

运行效果：如图

 

日期选择窗口

 

时间选择窗口