From abbb4f4b66580da5fa317e20fe654675624692da Mon Sep 17 00:00:00 2001 From: weichunyi <2948523237@qq.com> Date: Sun, 25 May 2025 17:12:39 +0800 Subject: [PATCH] =?UTF-8?q?=E6=97=A5=E6=9C=9F=E6=97=B6=E9=97=B4=E9=80=89?= =?UTF-8?q?=E6=8B=A9=E5=99=A8=E6=8E=A7=E4=BB=B6=E6=B3=A8=E9=87=8A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../net/micode/notes/ui/DateTimePicker.java | 225 +++++++++++------- 1 file changed, 140 insertions(+), 85 deletions(-) diff --git a/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java b/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java index 496b0cd..e473ac5 100644 --- a/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java +++ b/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java @@ -21,92 +21,124 @@ import java.util.Calendar; import net.micode.notes.R; - import android.content.Context; import android.text.format.DateFormat; import android.view.View; import android.widget.FrameLayout; import android.widget.NumberPicker; +/** + * 日期时间选择器控件，用于选择日期和时间 + * 支持12小时制和24小时制显示模式 + */ 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; + // 时间相关常量 + private static final int HOURS_IN_HALF_DAY = 12; // 半天的小时数 + private static final int HOURS_IN_ALL_DAY = 24; // 全天的小时数 + private static final int DAYS_IN_ALL_WEEK = 7; // 一周的天数 + + // 日期选择器范围 private static final int DATE_SPINNER_MIN_VAL = 0; private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1; + + // 24小时制时间选择器范围 private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0; private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23; + + // 12小时制时间选择器范围 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 private static final int MINUT_SPINNER_MIN_VAL = 0; private static final int MINUT_SPINNER_MAX_VAL = 59; + + // AM/PM选择器范围 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; - - private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; - - private boolean mIsAm; - - private boolean mIs24HourView; - - private boolean mIsEnabled = DEFAULT_ENABLE_STATE; - - private boolean mInitialising; - - private OnDateTimeChangedListener mOnDateTimeChangedListener; - + // 控件成员变量 + private final NumberPicker mDateSpinner; // 日期选择器 + private final NumberPicker mHourSpinner; // 小时选择器 + private final NumberPicker mMinuteSpinner; // 分钟选择器 + private final NumberPicker mAmPmSpinner; // AM/PM选择器 + + private Calendar mDate; // 当前选择的日期时间 + + private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; // 日期显示值数组 + + private boolean mIsAm; // 是否为上午 + private boolean mIs24HourView; // 是否为24小时制 + private boolean mIsEnabled = DEFAULT_ENABLE_STATE; // 控件是否可用 + private boolean mInitialising; // 是否正在初始化 + + private OnDateTimeChangedListener mOnDateTimeChangedListener; // 日期时间变化监听器 + + // 日期变化监听器 private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { + // 计算日期变化量并更新日期 mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal); updateDateControl(); onDateTimeChanged(); } }; + // 小时变化监听器 private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { boolean isDateChanged = false; Calendar cal = Calendar.getInstance(); + + // 处理12小时制下的特殊时间点变化 if (!mIs24HourView) { + // 处理PM到AM的日期变化 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) { + } + // 处理AM到PM的日期变化 + 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; } + + // 处理AM/PM切换 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 { + } + // 处理24小时制下的特殊时间点变化 + else { + // 处理23点到0点的日期变化 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) { + } + // 处理0点到23点的日期变化 + else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { cal.setTimeInMillis(mDate.getTimeInMillis()); cal.add(Calendar.DAY_OF_YEAR, -1); isDateChanged = true; } } + + // 更新当前小时并触发变化事件 int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY); mDate.set(Calendar.HOUR_OF_DAY, newHour); onDateTimeChanged(); + + // 如果需要更新日期 if (isDateChanged) { setCurrentYear(cal.get(Calendar.YEAR)); setCurrentMonth(cal.get(Calendar.MONTH)); @@ -115,21 +147,28 @@ public class DateTimePicker extends FrameLayout { } }; + // 分钟变化监听器 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; + + // 处理分钟循环滚动 if (oldVal == maxValue && newVal == minValue) { - offset += 1; + offset += 1; // 从最大值滚动到最小值，小时加1 } else if (oldVal == minValue && newVal == maxValue) { - offset -= 1; + offset -= 1; // 从最小值滚动到最大值，小时减1 } + + // 如果需要调整小时 if (offset != 0) { mDate.add(Calendar.HOUR_OF_DAY, offset); mHourSpinner.setValue(getCurrentHour()); updateDateControl(); + + // 更新AM/PM显示 int newHour = getCurrentHourOfDay(); if (newHour >= HOURS_IN_HALF_DAY) { mIsAm = false; @@ -139,14 +178,18 @@ public class DateTimePicker extends FrameLayout { updateAmPmControl(); } } + + // 设置新分钟并触发变化事件 mDate.set(Calendar.MINUTE, newVal); onDateTimeChanged(); } }; + // AM/PM变化监听器 private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { + // 切换AM/PM状态并调整时间 mIsAm = !mIsAm; if (mIsAm) { mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY); @@ -158,39 +201,58 @@ public class DateTimePicker extends FrameLayout { } }; + /** + * 日期时间变化监听接口 + */ public interface OnDateTimeChangedListener { void onDateTimeChanged(DateTimePicker view, int year, int month, int dayOfMonth, int hourOfDay, int minute); } + /** + * 构造函数，使用当前时间初始化 + */ public DateTimePicker(Context context) { this(context, System.currentTimeMillis()); } + /** + * 构造函数，使用指定时间戳初始化 + */ public DateTimePicker(Context context, long date) { this(context, date, DateFormat.is24HourFormat(context)); } + /** + * 主构造函数，完成所有初始化工作 + */ public DateTimePicker(Context context, long date, boolean is24HourView) { super(context); mDate = Calendar.getInstance(); mInitialising = true; - mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; + mIsAm = getCurrentHourOfDay() < HOURS_IN_HALF_DAY; // 根据当前时间设置AM/PM + + // 加载布局 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); - mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); + + // 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); // 设置长按更新间隔 mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener); + // 初始化AM/PM选择器 String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm); mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL); @@ -198,19 +260,21 @@ public class DateTimePicker extends FrameLayout { mAmPmSpinner.setDisplayedValues(stringsForAmPm); mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener); - // update controls to initial state + // 更新控件初始状态 updateDateControl(); updateHourControl(); updateAmPmControl(); + // 设置时间显示模式 set24HourView(is24HourView); - // set to current time + // 设置为当前时间 setCurrentDate(date); + // 设置启用状态 setEnabled(isEnabled()); - // set the content descriptions + // 初始化完成 mInitialising = false; } @@ -220,6 +284,7 @@ public class DateTimePicker extends FrameLayout { return; } super.setEnabled(enabled); + // 设置各子控件的启用状态 mDateSpinner.setEnabled(enabled); mMinuteSpinner.setEnabled(enabled); mHourSpinner.setEnabled(enabled); @@ -233,18 +298,14 @@ public class DateTimePicker extends FrameLayout { } /** - * Get the current date in millis - * - * @return the current date in millis + * 获取当前日期的时间戳 */ public long getCurrentDateInTimeMillis() { return mDate.getTimeInMillis(); } /** - * Set the current date - * - * @param date The current date in millis + * 设置当前日期（通过时间戳） */ public void setCurrentDate(long date) { Calendar cal = Calendar.getInstance(); @@ -254,13 +315,7 @@ public class DateTimePicker extends FrameLayout { } /** - * 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（通过年月日时分） */ public void setCurrentDate(int year, int month, int dayOfMonth, int hourOfDay, int minute) { @@ -272,18 +327,14 @@ public class DateTimePicker extends FrameLayout { } /** - * Get current year - * - * @return The current year + * 获取当前年份 */ public int getCurrentYear() { return mDate.get(Calendar.YEAR); } /** - * Set current year - * - * @param year The current year + * 设置当前年份 */ public void setCurrentYear(int year) { if (!mInitialising && year == getCurrentYear()) { @@ -295,18 +346,14 @@ public class DateTimePicker extends FrameLayout { } /** - * Get current month in the year - * - * @return The current month in the year + * 获取当前月份 */ public int getCurrentMonth() { return mDate.get(Calendar.MONTH); } /** - * Set current month in the year - * - * @param month The month in the year + * 设置当前月份 */ public void setCurrentMonth(int month) { if (!mInitialising && month == getCurrentMonth()) { @@ -318,18 +365,14 @@ public class DateTimePicker extends FrameLayout { } /** - * Get current day of the month - * - * @return The day of the month + * 获取当前日期 */ public int getCurrentDay() { return mDate.get(Calendar.DAY_OF_MONTH); } /** - * Set current day of the month - * - * @param dayOfMonth The day of the month + * 设置当前日期 */ public void setCurrentDay(int dayOfMonth) { if (!mInitialising && dayOfMonth == getCurrentDay()) { @@ -341,36 +384,38 @@ 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） */ public int getCurrentHourOfDay() { return mDate.get(Calendar.HOUR_OF_DAY); } + /** + * 获取当前小时（根据显示模式） + */ private int getCurrentHour() { if (mIs24HourView){ return getCurrentHourOfDay(); } else { int hour = getCurrentHourOfDay(); if (hour > HOURS_IN_HALF_DAY) { - return hour - HOURS_IN_HALF_DAY; + return hour - HOURS_IN_HALF_DAY; // PM时间转换为12小时制 } else { - return hour == 0 ? HOURS_IN_HALF_DAY : hour; + return hour == 0 ? HOURS_IN_HALF_DAY : hour; // 0点转换为12点 } } } /** - * Set current hour in 24 hour mode, in the range (0~23) - * - * @param hourOfDay + * 设置当前小时（24小时制） */ public void setCurrentHour(int hourOfDay) { if (!mInitialising && hourOfDay == getCurrentHourOfDay()) { return; } mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); + + // 处理12小时制下的显示 if (!mIs24HourView) { if (hourOfDay >= HOURS_IN_HALF_DAY) { mIsAm = false; @@ -390,16 +435,14 @@ public class DateTimePicker extends FrameLayout { } /** - * Get currentMinute - * - * @return The Current Minute + * 获取当前分钟 */ public int getCurrentMinute() { return mDate.get(Calendar.MINUTE); } /** - * Set current minute + * 设置当前分钟 */ public void setCurrentMinute(int minute) { if (!mInitialising && minute == getCurrentMinute()) { @@ -411,16 +454,14 @@ public class DateTimePicker extends FrameLayout { } /** - * @return true if this is in 24 hour view else false. + * 是否为24小时制显示 */ - public boolean is24HourView () { + 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. + * 设置时间显示模式（24小时制或12小时制） */ public void set24HourView(boolean is24HourView) { if (mIs24HourView == is24HourView) { @@ -434,20 +475,29 @@ public class DateTimePicker extends FrameLayout { updateAmPmControl(); } + /** + * 更新日期控件显示 + */ 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); + + // 生成一周的日期显示文本 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.setValue(DAYS_IN_ALL_WEEK / 2); // 设置中间位置为当前日期 mDateSpinner.invalidate(); } + /** + * 更新AM/PM控件显示 + */ private void updateAmPmControl() { if (mIs24HourView) { mAmPmSpinner.setVisibility(View.GONE); @@ -458,6 +508,9 @@ public class DateTimePicker extends FrameLayout { } } + /** + * 更新小时控件显示范围 + */ private void updateHourControl() { if (mIs24HourView) { mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW); @@ -469,17 +522,19 @@ public class DateTimePicker extends FrameLayout { } /** - * Set the callback that indicates the 'Set' button has been pressed. - * @param callback the callback, if null will do nothing + * 设置日期时间变化监听器 */ public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) { mOnDateTimeChangedListener = callback; } + /** + * 触发日期时间变化事件 + */ private void onDateTimeChanged() { if (mOnDateTimeChangedListener != null) { mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(), getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute()); } } -} +} \ No newline at end of file