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@ -1,17 +1,9 @@
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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* 版权声明:本代码受Apache许可证2.0版本保护
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* 您可以在遵守许可证的前提下使用、修改和分发本代码
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* 许可证全文可在http://www.apache.org/licenses/LICENSE-2.0获取
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*/
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package net.micode.notes.ui;
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@ -29,59 +21,113 @@ import android.content.DialogInterface.OnClickListener;
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import android.text.format.DateFormat;
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import android.text.format.DateUtils;
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/**
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* 日期时间选择对话框
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* 功能:封装DateTimePicker控件,提供弹窗式的日期时间选择界面
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* 特点:支持标题自动更新、24小时制/12小时制切换、确定/取消按钮
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*/
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public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
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// 当前选择的日期时间
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private Calendar mDate = Calendar.getInstance();
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// 是否使用24小时制
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private boolean mIs24HourView;
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// 日期时间设置回调接口
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private OnDateTimeSetListener mOnDateTimeSetListener;
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// 内嵌的日期时间选择器控件
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private DateTimePicker mDateTimePicker;
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/**
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* 日期时间设置回调接口
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* 当用户点击确定按钮时触发
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*/
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public interface OnDateTimeSetListener {
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void OnDateTimeSet(AlertDialog dialog, long date);
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}
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/**
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* 构造函数
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* @param context 上下文对象
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* @param date 初始显示的日期时间(毫秒值)
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*/
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public DateTimePickerDialog(Context context, long date) {
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super(context);
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// 初始化日期时间选择器控件
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mDateTimePicker = new DateTimePicker(context);
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setView(mDateTimePicker);
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// 设置日期时间变化监听器,更新日期并刷新标题
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mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
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public void onDateTimeChanged(DateTimePicker view, int year, int month,
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int dayOfMonth, int hourOfDay, int minute) {
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// 更新日历对象
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mDate.set(Calendar.YEAR, year);
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mDate.set(Calendar.MONTH, month);
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mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
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mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
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mDate.set(Calendar.MINUTE, minute);
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// 更新对话框标题
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updateTitle(mDate.getTimeInMillis());
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}
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});
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// 设置初始日期时间(忽略秒)
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mDate.setTimeInMillis(date);
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mDate.set(Calendar.SECOND, 0);
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mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
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// 设置对话框按钮
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setButton(context.getString(R.string.datetime_dialog_ok), this);
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setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
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// 设置时间显示模式
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set24HourView(DateFormat.is24HourFormat(this.getContext()));
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// 初始化对话框标题
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updateTitle(mDate.getTimeInMillis());
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}
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/**
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* 设置时间显示模式
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* @param is24HourView true为24小时制,false为12小时制
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*/
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public void set24HourView(boolean is24HourView) {
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mIs24HourView = is24HourView;
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}
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/**
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* 设置日期时间选择回调
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* @param callBack 回调接口实现
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*/
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public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
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mOnDateTimeSetListener = callBack;
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}
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/**
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* 更新对话框标题
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* @param date 要显示的日期时间(毫秒值)
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*/
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private void updateTitle(long date) {
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// 设置日期格式标志:显示年、月、日、时间
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int flag =
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DateUtils.FORMAT_SHOW_YEAR |
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DateUtils.FORMAT_SHOW_DATE |
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DateUtils.FORMAT_SHOW_TIME;
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// 根据24小时制/12小时制设置相应标志
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flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
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// 使用系统工具类格式化日期并设置为标题
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setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
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}
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/**
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* 点击事件处理
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* 当用户点击确定按钮时触发
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*/
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public void onClick(DialogInterface arg0, int arg1) {
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// 调用回调接口,传递选择的日期时间
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if (mOnDateTimeSetListener != null) {
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mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
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}
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