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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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*/
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package net.micode.notes.ui;
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import java.text.DateFormatSymbols;
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import java.util.Calendar;
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import net.micode.notes.R;
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import android.content.Context;
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import android.text.format.DateFormat;
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import android.view.View;
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import android.widget.FrameLayout;
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import android.widget.NumberPicker;
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/**
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* @ProjectName: DateTime
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* @Package: net.micode.notes.ui
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* @ClassName: DateTimePicker
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* @Description: 对日期等数据模板进行初始化
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* @Author: wyf
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* @CreateDate: 2023/12/24 17:06
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*/
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public class DateTimePicker extends FrameLayout {
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//各变量的初始化控件，变量代表含义可通过变量名获得
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private static final boolean DEFAULT_ENABLE_STATE = true;
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private static final int HOURS_IN_HALF_DAY = 12;
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private static final int HOURS_IN_ALL_DAY = 24;
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private static final int DAYS_IN_ALL_WEEK = 7;
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private static final int DATE_SPINNER_MIN_VAL = 0;
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private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
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private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
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private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
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private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
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private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
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private static final int MINUT_SPINNER_MIN_VAL = 0;
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private static final int MINUT_SPINNER_MAX_VAL = 59;
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private static final int AMPM_SPINNER_MIN_VAL = 0;
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private static final int AMPM_SPINNER_MAX_VAL = 1;
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//NumberPicker是数字选择器
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//这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午）
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private final NumberPicker mDateSpinner;
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private final NumberPicker mHourSpinner;
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private final NumberPicker mMinuteSpinner;
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private final NumberPicker mAmPmSpinner;
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private Calendar mDate;//定义了Calendar类型的变量mDate，用于操作时间
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private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
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private boolean mIsAm;
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private boolean mIs24HourView;
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private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
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private boolean mInitialising;
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private OnDateTimeChangedListener mOnDateTimeChangedListener; //OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听
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private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
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@Override
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/**
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* @method: onValueChange
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* @description:获取日期信息
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* @date: 2023/12/24 17:15
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* @author: wyf
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* @param: int
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* @return: void
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*/
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public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
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mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal); //将现在日期的值传递给mDate
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updateDateControl();//updateDateControl是同步操作
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onDateTimeChanged();
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}
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};
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//对小时（Hour）的监听
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private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
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@Override
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/**
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* @method: onValueChange
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* @description:
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* @date: 2023/12/24 17:16
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* @author: wyf
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* @param: class\int
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* @return: void
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*/
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public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
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boolean isDateChanged = false;
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//声明一个Calendar的变量cal，便于后续的操作
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Calendar cal = Calendar.getInstance();
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if (!mIs24HourView) {
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//这里是对于12小时制时，晚上11点和12点交替时对日期的更改
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if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
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cal.setTimeInMillis(mDate.getTimeInMillis());
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cal.add(Calendar.DAY_OF_YEAR, 1);
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isDateChanged = true;
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}
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//这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
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else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
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cal.setTimeInMillis(mDate.getTimeInMillis());
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cal.add(Calendar.DAY_OF_YEAR, -1);
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isDateChanged = true;
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}
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//这里是对于12小时制时，中午11点和12点交替时对AM和PM的更改
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if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
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oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
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mIsAm = !mIsAm;
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updateAmPmControl();
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}
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} else {
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//这里是对于24小时制时，晚上11点和12点交替时对日期的更改
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if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
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cal.setTimeInMillis(mDate.getTimeInMillis());
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cal.add(Calendar.DAY_OF_YEAR, 1);
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isDateChanged = true;
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}
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//这里是对于12小时制时，凌晨11点和12点交替时对日期的更改
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else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
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cal.setTimeInMillis(mDate.getTimeInMillis());
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cal.add(Calendar.DAY_OF_YEAR, -1);
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isDateChanged = true;
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}
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}
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int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);//通过数字选择器对newHour的赋值
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mDate.set(Calendar.HOUR_OF_DAY, newHour);//通过set函数将新的Hour值传给mDate
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onDateTimeChanged();
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if (isDateChanged) {
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setCurrentYear(cal.get(Calendar.YEAR));
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setCurrentMonth(cal.get(Calendar.MONTH));
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setCurrentDay(cal.get(Calendar.DAY_OF_MONTH));
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}
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}
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};
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//对分钟（Minute）改变的监听
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private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
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@Override
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/**
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* @method: onValueChange
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* @description:对分钟进行修改
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* @date: 2023/12/24 17:27
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* @author: wyf
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* @param: class\int
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* @return: void
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*/
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public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
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int minValue = mMinuteSpinner.getMinValue();
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int maxValue = mMinuteSpinner.getMaxValue();
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int offset = 0; //设置offset，作为小时改变的一个记录数据
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if (oldVal == maxValue && newVal == minValue) {
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offset += 1; //如果原值为59，新值为0，则offset加1
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} else if (oldVal == minValue && newVal == maxValue) {
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offset -= 1;//如果原值为0，新值为59，则offset减1
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}
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if (offset != 0) {
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mDate.add(Calendar.HOUR_OF_DAY, offset);
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mHourSpinner.setValue(getCurrentHour());
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updateDateControl();
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int newHour = getCurrentHourOfDay();
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if (newHour >= HOURS_IN_HALF_DAY) {
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mIsAm = false;
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updateAmPmControl();
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} else {
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mIsAm = true;
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updateAmPmControl();
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}
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}
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mDate.set(Calendar.MINUTE, newVal);
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onDateTimeChanged();
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}
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};
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//对AM和PM的监听
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private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
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@Override
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/**
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* @method: onValueChange
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* @description:对AM和PM进行修改
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* @date: 2023/12/24 17:29
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* @author: wyf
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* @param: class\int
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* @return: void
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*/
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public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
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mIsAm = !mIsAm;
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if (mIsAm) {
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mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
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} else {
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mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
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}
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updateAmPmControl();
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onDateTimeChanged();
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}
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};
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public interface OnDateTimeChangedListener {
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void onDateTimeChanged(DateTimePicker view, int year, int month,
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int dayOfMonth, int hourOfDay, int minute);
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}
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public DateTimePicker(Context context) {
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this(context, System.currentTimeMillis());//通过对数据库的访问，获取当前的系统时间
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}
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public DateTimePicker(Context context, long date) {
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this(context, date, DateFormat.is24HourFormat(context));//得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义
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}
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public DateTimePicker(Context context, long date, boolean is24HourView) {
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super(context);//获取系统时间
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mDate = Calendar.getInstance();
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mInitialising = true;
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mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
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inflate(context, R.layout.datetime_picker, this);
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//如果当前Activity里用到别的layout，比如对话框layout
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//还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来
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//然后再用findViewById()找到它上面的其它组件
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mDateSpinner = (NumberPicker) findViewById(R.id.date);
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mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
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mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
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mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);
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mHourSpinner = (NumberPicker) findViewById(R.id.hour);
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mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
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mMinuteSpinner = (NumberPicker) findViewById(R.id.minute);
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mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
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mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
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mMinuteSpinner.setOnLongPressUpdateInterval(100);
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mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
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String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
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mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
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mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
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mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
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mAmPmSpinner.setDisplayedValues(stringsForAmPm);
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mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
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// update controls to initial state
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updateDateControl();
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updateHourControl();
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updateAmPmControl();
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set24HourView(is24HourView);
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// set to current time
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setCurrentDate(date);
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setEnabled(isEnabled());
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// set the content descriptions
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mInitialising = false;
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}
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@Override
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public void setEnabled(boolean enabled) {
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if (mIsEnabled == enabled) {
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return;
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}
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super.setEnabled(enabled);
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mDateSpinner.setEnabled(enabled);
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mMinuteSpinner.setEnabled(enabled);
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mHourSpinner.setEnabled(enabled);
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mAmPmSpinner.setEnabled(enabled);
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mIsEnabled = enabled;
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}
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@Override
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public boolean isEnabled() {
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return mIsEnabled;
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}
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/**
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* Get the current date in millis
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*
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* @return the current date in millis
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*/
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public long getCurrentDateInTimeMillis() {
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return mDate.getTimeInMillis();
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}//实现函数——得到当前的秒数
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/**
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* Set the current date
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*
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* @param date The current date in millis
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*/
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/**
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* @method: setCurrentDate
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* @description:设置当前时间（以date为参数）
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* @date: 2023/12/24 17:36
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* @author: wyf
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* @param: long
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* @return: void
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*/
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public void setCurrentDate(long date) {
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Calendar cal = Calendar.getInstance();
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cal.setTimeInMillis(date);
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setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
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cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
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}
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/**
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* Set the current date
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*
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* @param year The current year
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* @param month The current month
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* @param dayOfMonth The current dayOfMonth
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* @param hourOfDay The current hourOfDay
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* @param minute The current minute
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*/
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/**
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* @method: setCurrentDate
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* @description:设置当前时间（以各项数据为参数）
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* @date: 2023/12/24 17:39
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* @author: wyf
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* @param: int
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* @return: void
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*/
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public void setCurrentDate(int year, int month,
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int dayOfMonth, int hourOfDay, int minute) {
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setCurrentYear(year);
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setCurrentMonth(month);
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setCurrentDay(dayOfMonth);
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setCurrentHour(hourOfDay);
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setCurrentMinute(minute);
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}
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/**
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* Get current year
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*
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* @return The current year
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*/
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public int getCurrentYear() {
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return mDate.get(Calendar.YEAR);
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}//得到year、month、day等值
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/**
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* Set current year
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*
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* @param year The current year
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*/
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/**
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* @method: setCurrentYear
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* @description:设置年的数据
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* @date: 2023/12/24 17:45
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* @author: wyf
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* @param: int
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* @return: void
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*/
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public void setCurrentYear(int year) {
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if (!mInitialising && year == getCurrentYear()) {
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return;
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}
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mDate.set(Calendar.YEAR, year);
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updateDateControl();
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onDateTimeChanged();
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}
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/**
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* Get current month in the year
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*
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* @return The current month in the year
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*/
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public int getCurrentMonth() {
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return mDate.get(Calendar.MONTH);
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}//获得月的数据
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/**
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* Set current month in the year
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*
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* @param month The month in the year
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*/
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/**
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* @method: setCurrentMonth
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* @description:设置月的数据
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* @date: 2023/12/24 17:47
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* @author: wyf
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* @param: int
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* @return: void
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*/
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public void setCurrentMonth(int month) {
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if (!mInitialising && month == getCurrentMonth()) {
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return;
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}
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mDate.set(Calendar.MONTH, month);
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updateDateControl();
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onDateTimeChanged();
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}
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/**
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* Get current day of the month
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*
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* @return The day of the month
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*/
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public int getCurrentDay() {
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return mDate.get(Calendar.DAY_OF_MONTH);
|
|
|
}//获得月的数据
|
|
|
|
|
|
/**
|
|
|
* Set current day of the month
|
|
|
*
|
|
|
* @param dayOfMonth The day of the month
|
|
|
*/
|
|
|
/**
|
|
|
* @method: setCurrentDay
|
|
|
* @description:设置日的数据
|
|
|
* @date: 2023/12/24 17:48
|
|
|
* @author: wyf
|
|
|
* @param: int
|
|
|
* @return: void
|
|
|
*/
|
|
|
public void setCurrentDay(int dayOfMonth) {
|
|
|
if (!mInitialising && dayOfMonth == getCurrentDay()) {
|
|
|
return;
|
|
|
}
|
|
|
mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
|
|
|
updateDateControl();
|
|
|
onDateTimeChanged();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Get current hour in 24 hour mode, in the range (0~23)
|
|
|
* @return The current hour in 24 hour mode
|
|
|
*/
|
|
|
public int getCurrentHourOfDay() {
|
|
|
return mDate.get(Calendar.HOUR_OF_DAY);
|
|
|
}//获得当天小时的数据
|
|
|
//获得现在小时数据
|
|
|
private int getCurrentHour() {
|
|
|
if (mIs24HourView){
|
|
|
return getCurrentHourOfDay();
|
|
|
} else {
|
|
|
int hour = getCurrentHourOfDay();
|
|
|
if (hour > HOURS_IN_HALF_DAY) {
|
|
|
return hour - HOURS_IN_HALF_DAY;
|
|
|
} else {
|
|
|
return hour == 0 ? HOURS_IN_HALF_DAY : hour;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Set current hour in 24 hour mode, in the range (0~23)
|
|
|
*
|
|
|
* @param hourOfDay
|
|
|
*/
|
|
|
/**
|
|
|
* @method: getCurrentHour
|
|
|
* @description:设置小时的数据
|
|
|
* @date: 2023/12/24 17:48
|
|
|
* @author: wyf
|
|
|
* @param: int
|
|
|
* @return: void
|
|
|
*/
|
|
|
public void setCurrentHour(int hourOfDay) {
|
|
|
if (!mInitialising && hourOfDay == getCurrentHourOfDay()) {
|
|
|
return;
|
|
|
}
|
|
|
mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
|
|
|
if (!mIs24HourView) {
|
|
|
if (hourOfDay >= HOURS_IN_HALF_DAY) {
|
|
|
mIsAm = false;
|
|
|
if (hourOfDay > HOURS_IN_HALF_DAY) {
|
|
|
hourOfDay -= HOURS_IN_HALF_DAY;
|
|
|
}
|
|
|
} else {
|
|
|
mIsAm = true;
|
|
|
if (hourOfDay == 0) {
|
|
|
hourOfDay = HOURS_IN_HALF_DAY;
|
|
|
}
|
|
|
}
|
|
|
updateAmPmControl();
|
|
|
}
|
|
|
mHourSpinner.setValue(hourOfDay);
|
|
|
onDateTimeChanged();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Get currentMinute
|
|
|
*
|
|
|
* @return The Current Minute
|
|
|
*/
|
|
|
public int getCurrentMinute() {
|
|
|
return mDate.get(Calendar.MINUTE);
|
|
|
}//获得现在分钟数据
|
|
|
|
|
|
/**
|
|
|
* Set current minute
|
|
|
*/
|
|
|
/**
|
|
|
* @method: setCurrentMinute
|
|
|
* @description:设置当前分钟数
|
|
|
* @date: 2023/12/24 17:51
|
|
|
* @author: wyf
|
|
|
* @param: int
|
|
|
* @return: void
|
|
|
*/
|
|
|
public void setCurrentMinute(int minute) {
|
|
|
if (!mInitialising && minute == getCurrentMinute()) {
|
|
|
return;
|
|
|
}
|
|
|
mMinuteSpinner.setValue(minute);
|
|
|
mDate.set(Calendar.MINUTE, minute);
|
|
|
onDateTimeChanged();
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @return true if this is in 24 hour view else false.
|
|
|
*/
|
|
|
public boolean is24HourView () {
|
|
|
return mIs24HourView;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Set whether in 24 hour or AM/PM mode.
|
|
|
*
|
|
|
* @param is24HourView True for 24 hour mode. False for AM/PM mode.
|
|
|
*/
|
|
|
/**
|
|
|
* @method: set24HourView
|
|
|
* @description:设置24小时数据
|
|
|
* @date: 2023/12/24 17:52
|
|
|
* @author: wyf
|
|
|
* @param: boolean
|
|
|
* @return: void
|
|
|
*/
|
|
|
public void set24HourView(boolean is24HourView) {
|
|
|
if (mIs24HourView == is24HourView) {
|
|
|
return;
|
|
|
}
|
|
|
mIs24HourView = is24HourView;
|
|
|
mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE);
|
|
|
int hour = getCurrentHourOfDay();
|
|
|
updateHourControl();
|
|
|
setCurrentHour(hour);
|
|
|
updateAmPmControl();
|
|
|
}
|
|
|
/**
|
|
|
* @method: updateDateControl
|
|
|
* @description:计算是星期几
|
|
|
* @date: 2023/12/24 17:53
|
|
|
* @author: wyf
|
|
|
* @param: null
|
|
|
* @return: void
|
|
|
*/
|
|
|
private void updateDateControl() {
|
|
|
Calendar cal = Calendar.getInstance();
|
|
|
cal.setTimeInMillis(mDate.getTimeInMillis());
|
|
|
cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
|
|
|
mDateSpinner.setDisplayedValues(null);
|
|
|
for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) {
|
|
|
cal.add(Calendar.DAY_OF_YEAR, 1);
|
|
|
mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal);
|
|
|
}
|
|
|
mDateSpinner.setDisplayedValues(mDateDisplayValues);
|
|
|
mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
|
|
|
mDateSpinner.invalidate();
|
|
|
}
|
|
|
/**
|
|
|
* @method: updateAmPmControl
|
|
|
* @description:计算现在是上下午
|
|
|
* @date: 2023/12/24 17:54
|
|
|
* @author: wyf
|
|
|
* @param: null
|
|
|
* @return: void
|
|
|
*/
|
|
|
private void updateAmPmControl() {
|
|
|
if (mIs24HourView) {
|
|
|
mAmPmSpinner.setVisibility(View.GONE);
|
|
|
}
|
|
|
else {
|
|
|
int index = mIsAm ? Calendar.AM : Calendar.PM;
|
|
|
mAmPmSpinner.setValue(index);
|
|
|
mAmPmSpinner.setVisibility(View.VISIBLE);
|
|
|
}
|
|
|
}
|
|
|
/**
|
|
|
* @method: updateHourControl
|
|
|
* @description:计算时间的算法
|
|
|
* @date: 2023/12/24 17:55
|
|
|
* @author: wyf
|
|
|
* @param: null
|
|
|
* @return: void
|
|
|
*/
|
|
|
private void updateHourControl() {
|
|
|
if (mIs24HourView) {
|
|
|
mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
|
|
|
mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW);
|
|
|
} else {
|
|
|
mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW);
|
|
|
mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Set the callback that indicates the 'Set' button has been pressed.
|
|
|
* @param callback the callback, if null will do nothing
|
|
|
*/
|
|
|
public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) {
|
|
|
mOnDateTimeChangedListener = callback;
|
|
|
}
|
|
|
/**
|
|
|
* @method: onDateTimeChanged
|
|
|
* @description:及时更新时间
|
|
|
* @date: 2023/12/24 17:56
|
|
|
* @author: wyf
|
|
|
* @param: null
|
|
|
* @return: void
|
|
|
*/
|
|
|
private void onDateTimeChanged() {
|
|
|
if (mOnDateTimeChangedListener != null) {
|
|
|
mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
|
|
|
getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
|
|
|
}
|
|
|
}
|
|
|
}
|
