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MRD
MRD 2 months ago
parent e2729f8040
commit b5d5488fa4
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src/Notes-master/app/src/main/java/net/micode/notes/ui/DateTimePicker.java
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@ -1,17 +1,9 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* 版权声明：本代码受Apache许可证2.0版本保护
* 您可以在遵守许可证的前提下使用、修改和分发本代码
* 许可证全文可在http://www.apache.org/licenses/LICENSE-2.0获取
*/
package net.micode.notes.ui;
@ -28,85 +20,130 @@ import android.view.View;
import android.widget.FrameLayout;
import android.widget.NumberPicker;
/**
* 日期时间选择器控件
* 功能：提供可视化的日期(年/月/日)和时间(时/分/上下午)选择界面
* 实现：基于Android NumberPicker组件构建，支持24小时制和12小时制切换
*/
public class DateTimePicker extends FrameLayout {
// 默认启用状态
private static final boolean DEFAULT_ENABLE_STATE = true;
private static final int HOURS_IN_HALF_DAY = 12;
private static final int HOURS_IN_ALL_DAY = 24;
private static final int DAYS_IN_ALL_WEEK = 7;
private static final int DATE_SPINNER_MIN_VAL = 0;
private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
// 时间显示模式相关常量
private static final int HOURS_IN_HALF_DAY = 12; // 12小时制半天时长
private static final int HOURS_IN_ALL_DAY = 24; // 24小时制全天时长
private static final int DAYS_IN_ALL_WEEK = 7; // 一周天数
// 日期选择器范围常量
private static final int DATE_SPINNER_MIN_VAL = 0; // 日期选择器最小值
private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1; // 日期选择器最大值
// 小时选择器范围常量(24小时制)
private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
// 小时选择器范围常量(12小时制)
private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
// 分钟选择器范围常量
private static final int MINUT_SPINNER_MIN_VAL = 0;
private static final int MINUT_SPINNER_MAX_VAL = 59;
// 上下午选择器范围常量
private static final int AMPM_SPINNER_MIN_VAL = 0;
private static final int AMPM_SPINNER_MAX_VAL = 1;
private final NumberPicker mDateSpinner;
private final NumberPicker mHourSpinner;
private final NumberPicker mMinuteSpinner;
private final NumberPicker mAmPmSpinner;
private Calendar mDate;
// UI组件引用
private final NumberPicker mDateSpinner; // 日期选择器(显示一周内的日期)
private final NumberPicker mHourSpinner; // 小时选择器
private final NumberPicker mMinuteSpinner; // 分钟选择器
private final NumberPicker mAmPmSpinner; // 上下午选择器
private Calendar mDate; // 当前选中的日期时间
// 日期显示文本数组
private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
private boolean mIsAm;
private boolean mIs24HourView;
private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
private boolean mInitialising;
// 时间状态标记
private boolean mIsAm; // 是否为上午(12小时制专用)
private boolean mIs24HourView; // 是否使用24小时制
private boolean mIsEnabled = DEFAULT_ENABLE_STATE; // 控件启用状态
private boolean mInitialising; // 初始化标记(防止事件回调循环)
// 日期时间变化监听器
private OnDateTimeChangedListener mOnDateTimeChangedListener;
/**
* 日期选择变化监听器
* 功能：处理日期选择器值变化事件，更新日期并触发回调
*/
private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
// 根据新旧值差调整日期
mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
// 更新日期显示
updateDateControl();
// 触发日期时间变化回调
onDateTimeChanged();
}
};
/**
* 小时选择变化监听器
* 功能：处理小时选择器值变化事件，处理12/24小时制转换逻辑
*/
private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
boolean isDateChanged = false;
Calendar cal = Calendar.getInstance();
// 12小时制特殊处理逻辑
if (!mIs24HourView) {
// 下午11点->12点：日期加1天
if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1);
isDateChanged = true;
} else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
}
// 上午12点->11点：日期减1天
else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true;
}
// 上下午切换处理
if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
mIsAm = !mIsAm;
updateAmPmControl();
}
} else {
}
// 24小时制特殊处理逻辑
else {
// 23点->0点：日期加1天
if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1);
isDateChanged = true;
} else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
}
// 0点->23点：日期减1天
else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true;
}
}
// 计算实际小时值(12小时制转换)
int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
mDate.set(Calendar.HOUR_OF_DAY, newHour);
onDateTimeChanged();
// 日期变更时更新年月日
if (isDateChanged) {
setCurrentYear(cal.get(Calendar.YEAR));
setCurrentMonth(cal.get(Calendar.MONTH));
@ -115,21 +152,30 @@ public class DateTimePicker extends FrameLayout {
}
};
/**
* 分钟选择变化监听器
* 功能：处理分钟选择器值变化事件，处理跨小时逻辑
*/
private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
int minValue = mMinuteSpinner.getMinValue();
int maxValue = mMinuteSpinner.getMaxValue();
int offset = 0;
// 处理分钟循环选择导致的小时变化
if (oldVal == maxValue && newVal == minValue) {
offset += 1;
offset += 1; // 60分->0分：小时加1
} else if (oldVal == minValue && newVal == maxValue) {
offset -= 1;
offset -= 1; // 0分->60分：小时减1
}
if (offset != 0) {
mDate.add(Calendar.HOUR_OF_DAY, offset);
mHourSpinner.setValue(getCurrentHour());
updateDateControl();
// 更新上下午状态
int newHour = getCurrentHourOfDay();
if (newHour >= HOURS_IN_HALF_DAY) {
mIsAm = false;
@ -139,15 +185,22 @@ public class DateTimePicker extends FrameLayout {
updateAmPmControl();
}
}
// 设置分钟值并触发回调
mDate.set(Calendar.MINUTE, newVal);
onDateTimeChanged();
}
};
/**
* 上下午选择变化监听器
* 功能：处理AM/PM切换事件，更新小时值
*/
private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
mIsAm = !mIsAm;
// 上下午切换时调整小时值(12小时制)
if (mIsAm) {
mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
} else {
@ -158,11 +211,16 @@ public class DateTimePicker extends FrameLayout {
}
};
/**
* 日期时间变化回调接口
* 当用户修改日期或时间时触发
*/
public interface OnDateTimeChangedListener {
void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute);
}
// 构造函数系列(支持不同初始化方式)
public DateTimePicker(Context context) {
this(context, System.currentTimeMillis());
}
@ -176,50 +234,61 @@ public class DateTimePicker extends FrameLayout {
mDate = Calendar.getInstance();
mInitialising = true;
mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
// 加载布局文件
inflate(context, R.layout.datetime_picker, this);
// 初始化日期选择器
mDateSpinner = (NumberPicker) findViewById(R.id.date);
mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL);
mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL);
mDateSpinner.setOnValueChangedListener(mOnDateChangedListener);
// 初始化小时选择器
mHourSpinner = (NumberPicker) findViewById(R.id.hour);
mHourSpinner.setOnValueChangedListener(mOnHourChangedListener);
// 初始化分钟选择器
mMinuteSpinner = (NumberPicker) findViewById(R.id.minute);
mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL);
mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL);
mMinuteSpinner.setOnLongPressUpdateInterval(100);
mMinuteSpinner.setOnLongPressUpdateInterval(100); // 长按快速滚动间隔
mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener);
// 初始化上下午选择器
String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
mAmPmSpinner.setDisplayedValues(stringsForAmPm);
mAmPmSpinner.setDisplayedValues(stringsForAmPm); // 设置AM/PM显示文本
mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
// update controls to initial state
// 初始化控件状态
updateDateControl();
updateHourControl();
updateAmPmControl();
// 设置时间显示模式
set24HourView(is24HourView);
// set to current time
// 设置当前日期时间
setCurrentDate(date);
// 设置控件启用状态
setEnabled(isEnabled());
// set the content descriptions
// 完成初始化(启用事件回调)
mInitialising = false;
}
// 控件启用状态相关方法
@Override
public void setEnabled(boolean enabled) {
if (mIsEnabled == enabled) {
return;
}
super.setEnabled(enabled);
// 同步设置所有选择器的启用状态
mDateSpinner.setEnabled(enabled);
mMinuteSpinner.setEnabled(enabled);
mHourSpinner.setEnabled(enabled);
@ -233,34 +302,32 @@ public class DateTimePicker extends FrameLayout {
}
/**
* Get the current date in millis
*
* @return the current date in millis
* 获取当前选择的日期时间(毫秒值)
* @return 自1970-01-01以来的毫秒数
*/
public long getCurrentDateInTimeMillis() {
return mDate.getTimeInMillis();
}
/**
* Set the current date
*
* @param date The current date in millis
* 设置当前日期时间(毫秒值)
* @param date 自1970-01-01以来的毫秒数
*/
public void setCurrentDate(long date) {
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(date);
// 分解为年月日时分设置
setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH),
cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE));
}
/**
* Set the current date
*
* @param year The current year
* @param month The current month
* @param dayOfMonth The current dayOfMonth
* @param hourOfDay The current hourOfDay
* @param minute The current minute
* 设置当前日期时间(详细参数)
* @param year 年份
* @param month 月份(0-11)
* @param dayOfMonth 日期(1-31)
* @param hourOfDay 小时(0-23)
* @param minute 分钟(0-59)
*/
public void setCurrentDate(int year, int month,
int dayOfMonth, int hourOfDay, int minute) {
@ -271,20 +338,11 @@ public class DateTimePicker extends FrameLayout {
setCurrentMinute(minute);
}
/**
* Get current year
*
* @return The current year
*/
// 年份相关操作方法
public int getCurrentYear() {
return mDate.get(Calendar.YEAR);
}
/**
* Set current year
*
* @param year The current year
*/
public void setCurrentYear(int year) {
if (!mInitialising && year == getCurrentYear()) {
return;
@ -294,20 +352,11 @@ public class DateTimePicker extends FrameLayout {
onDateTimeChanged();
}
/**
* Get current month in the year
*
* @return The current month in the year
*/
// 月份相关操作方法
public int getCurrentMonth() {
return mDate.get(Calendar.MONTH);
}
/**
* Set current month in the year
*
* @param month The month in the year
*/
public void setCurrentMonth(int month) {
if (!mInitialising && month == getCurrentMonth()) {
return;
@ -317,20 +366,11 @@ public class DateTimePicker extends FrameLayout {
onDateTimeChanged();
}
/**
* Get current day of the month
*
* @return The day of the month
*/
// 日期相关操作方法
public int getCurrentDay() {
return mDate.get(Calendar.DAY_OF_MONTH);
}
/**
* Set current day of the month
*
* @param dayOfMonth The day of the month
*/
public void setCurrentDay(int dayOfMonth) {
if (!mInitialising && dayOfMonth == getCurrentDay()) {
return;
@ -341,145 +381,39 @@ public class DateTimePicker extends FrameLayout {
}
/**
* Get current hour in 24 hour mode, in the range (0~23)
* @return The current hour in 24 hour mode
* 获取当前小时(24小时制)
* @return 0-23范围内的小时值
*/
public int getCurrentHourOfDay() {
return mDate.get(Calendar.HOUR_OF_DAY);
}
/**
* 获取当前小时(根据显示模式转换)
* @return 12小时制下1-12，24小时制下0-23
*/
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;
}
// 12小时制特殊处理(0点显示为12点)
return hour == 0 ? HOURS_IN_HALF_DAY : (hour > HOURS_IN_HALF_DAY ? hour - HOURS_IN_HALF_DAY : hour);
}
}
/**
* Set current hour in 24 hour mode, in the range (0~23)
*
* @param hourOfDay
* 设置当前小时(24小时制)
* @param hourOfDay 0-23范围内的小时值
*/
public void setCurrentHour(int hourOfDay) {
if (!mInitialising && hourOfDay == getCurrentHourOfDay()) {
return;
}
mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
// 12小时制下的小时转换
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);
}
/**
* Set current minute
*/
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.
*/
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();
}
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();
}
private void updateAmPmControl() {
if (mIs24HourView) {
mAmPmSpinner.setVisibility(View.GONE);
} else {
int index = mIsAm ? Calendar.AM : Calendar.PM;
mAmPmSpinner.setValue(index);
mAmPmSpinner.setVisibility(View.VISIBLE);
}
}
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;
}
private void onDateTimeChanged() {
if (mOnDateTimeChangedListener != null) {
mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
}
}
}
if (hourOfDay > HOURS_IN_H
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