p6sb9rkmv
/
XiaoMiNotes
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Labels Milestones
New Pull Request

代码注释 #13

Merged
pi2ec49p7 merged 5 commits from zhangxiaorui_branch into master 3 weeks ago
Conversation 0 Commits 5 Files Changed 13
13 changed files with 1382 additions and 565 deletions
Show Stats Download Patch File Download Diff File

BIN
doc/小米便签泛读、标注和维护报告(6).docx → doc/小米便签泛读、标注和维护报告.docx
View File

Binary file not shown.

124
src/ui/AlarmAlertActivity.java
Unescape View File

@ -39,120 +39,178 @@ import net.micode.notes.tool.DataUtils;
import java.io.IOException;
/**
* 便签闹钟提醒活动
*
* 负责处理便签提醒时间到达时的提醒功能，包括：
* 1. 播放闹钟提示音（使用系统默认闹钟铃声）
* 2. 在屏幕锁定状态下显示提醒对话框
* 3. 提供用户操作选项：关闭提醒或进入便签编辑界面
*
* 设计说明：
* - 使用全屏对话框形式显示提醒
* - 支持在屏幕锁定时唤醒屏幕并显示提醒
* - 自动检查便签是否存在，防止已删除便签的错误提醒
*/
public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener {
private long mNoteId;
private String mSnippet;
private static final int SNIPPET_PREW_MAX_LEN = 60;
MediaPlayer mPlayer;
private long mNoteId; // 触发提醒的便签ID
private String mSnippet; // 便签内容摘要
private static final int SNIPPET_PREW_MAX_LEN = 60; // 摘要显示的最大长度
MediaPlayer mPlayer; // 媒体播放器，用于播放闹钟音
/**
* Activity创建时的回调方法
* 初始化提醒界面和播放闹钟音
*
* @param savedInstanceState 保存的状态数据
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
requestWindowFeature(Window.FEATURE_NO_TITLE); // 设置无标题栏
final Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); // 在锁屏状态下显示
// 如果屏幕未亮起，则添加更多窗口标志以唤醒屏幕
if (!isScreenOn()) {
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR);
win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON // 保持屏幕常亮
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON // 点亮屏幕
| WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON // 允许屏幕点亮时锁定
| WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); // 允许装饰嵌入布局
}
Intent intent = getIntent();
try {
// 从Intent中提取便签ID和内容
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
// 截取便签内容摘要，避免过长显示
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet;
} catch (IllegalArgumentException e) {
e.printStackTrace();
return;
return; // 如果便签ID无效，直接返回
}
mPlayer = new MediaPlayer();
mPlayer = new MediaPlayer(); // 初始化媒体播放器
// 检查便签是否在数据库中且可见（不在回收站中）
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
showActionDialog();
playAlarmSound();
showActionDialog(); // 显示操作对话框
playAlarmSound(); // 播放闹钟音
} else {
finish();
finish(); // 便签不存在或不可见，直接结束Activity
}
}
/**
* 检查屏幕是否亮起
*
* @return true表示屏幕亮起，false表示屏幕关闭
*/
private boolean isScreenOn() {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
return pm.isScreenOn();
}
/**
* 播放闹钟提示音
* 使用系统默认闹钟铃声，并根据系统静音设置调整音频流类型
*/
private void playAlarmSound() {
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); // 获取默认闹钟铃声
// 检查系统静音设置是否影响闹钟音频流
int silentModeStreams = Settings.System.getInt(getContentResolver(),
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
// 如果静音设置影响闹钟音频流，则使用该设置；否则使用默认的闹钟音频流
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
mPlayer.setAudioStreamType(silentModeStreams);
} else {
mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
}
// 设置并播放闹钟音
try {
mPlayer.setDataSource(this, url);
mPlayer.prepare();
mPlayer.setLooping(true);
mPlayer.setLooping(true); // 设置循环播放，直到用户操作
mPlayer.start();
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 显示提醒操作对话框
* 对话框显示便签内容摘要，并提供操作按钮
*/
private void showActionDialog() {
AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setTitle(R.string.app_name);
dialog.setMessage(mSnippet);
dialog.setTitle(R.string.app_name); // 设置应用名称作为标题
dialog.setMessage(mSnippet); // 设置便签内容摘要
// 确定按钮：关闭提醒
dialog.setPositiveButton(R.string.notealert_ok, this);
// 如果屏幕亮起，显示"进入编辑"按钮
if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this);
}
dialog.show().setOnDismissListener(this);
dialog.show().setOnDismissListener(this); // 显示对话框并设置关闭监听器
}
/**
* 对话框按钮点击回调方法
*
* @param dialog 被点击的对话框
* @param which 被点击的按钮标识
*/
public void onClick(DialogInterface dialog, int which) {
switch (which) {
case DialogInterface.BUTTON_NEGATIVE:
// 用户点击"进入编辑"按钮，启动便签编辑界面
Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_VIEW);
intent.putExtra(Intent.EXTRA_UID, mNoteId);
intent.putExtra(Intent.EXTRA_UID, mNoteId); // 传递便签ID
startActivity(intent);
break;
default:
// 其他按钮（如确定按钮）无额外操作
break;
}
}
/**
* 对话框关闭回调方法
* 停止闹钟音并结束Activity
*
* @param dialog 被关闭的对话框
*/
public void onDismiss(DialogInterface dialog) {
stopAlarmSound();
finish();
stopAlarmSound(); // 停止播放闹钟音
finish(); // 结束Activity
}
/**
* 停止闹钟音播放
* 释放媒体播放器资源
*/
private void stopAlarmSound() {
if (mPlayer != null) {
mPlayer.stop();
mPlayer.release();
mPlayer = null;
mPlayer.stop(); // 停止播放
mPlayer.release(); // 释放资源
mPlayer = null; // 清空引用
}
}
}
}

44
src/ui/AlarmInitReceiver.java
Unescape View File

@ -27,20 +27,29 @@ import android.database.Cursor;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
/**
* 闹钟初始化接收器
* 主要功能：在系统启动或应用启动时，重新设置所有未来的闹钟提醒
*/
public class AlarmInitReceiver extends BroadcastReceiver {
// 数据库查询需要的列
private static final String [] PROJECTION = new String [] {
NoteColumns.ID,
NoteColumns.ALERTED_DATE
NoteColumns.ID, // 笔记ID
NoteColumns.ALERTED_DATE // 提醒时间
};
private static final int COLUMN_ID = 0;
private static final int COLUMN_ALERTED_DATE = 1;
// 列索引常量
private static final int COLUMN_ID = 0; // ID列索引
private static final int COLUMN_ALERTED_DATE = 1; // 提醒时间列索引
@Override
public void onReceive(Context context, Intent intent) {
// 获取当前系统时间
long currentDate = System.currentTimeMillis();
// 查询所有需要设置闹钟的笔记
// 条件：提醒时间大于当前时间，且笔记类型为普通笔记（非文件夹等）
Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
PROJECTION,
NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
@ -48,18 +57,33 @@ public class AlarmInitReceiver extends BroadcastReceiver {
null);
if (c != null) {
// 遍历查询结果
if (c.moveToFirst()) {
do {
// 获取该笔记的提醒时间
long alertDate = c.getLong(COLUMN_ALERTED_DATE);
// 创建触发闹钟的Intent，目标为AlarmReceiver
Intent sender = new Intent(context, AlarmReceiver.class);
sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID)));
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0);
// 将笔记ID附加到URI中，以便AlarmReceiver知道是哪个笔记的提醒
sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI,
c.getLong(COLUMN_ID)));
// 创建PendingIntent，用于在指定时间触发广播
PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
0, sender, 0);
// 获取系统闹钟服务
AlarmManager alermManager = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
// 设置闹钟
// 使用RTC_WAKEUP模式：在指定时间唤醒设备并触发PendingIntent
alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
} while (c.moveToNext());
} while (c.moveToNext()); // 继续处理下一条记录
}
c.close();
c.close(); // 关闭游标，释放资源
}
// 注意：如果c为null，说明查询失败，这里没有错误处理
}
}
}

29
src/ui/AlarmReceiver.java
Unescape View File

@ -20,11 +20,38 @@ import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
/**
* 闹钟触发接收器
* 主要功能：接收由AlarmManager触发的闹钟广播，并启动提醒界面
*
* 注意：此类与AlarmInitReceiver配合工作：
* - AlarmInitReceiver: 负责在系统启动时重新设置所有未来的闹钟
* - AlarmReceiver: 负责在闹钟触发时执行实际的动作（启动提醒界面）
*/
public class AlarmReceiver extends BroadcastReceiver {
/**
* 接收广播并处理闹钟触发事件
* 当AlarmManager设置的闹钟时间到达时，系统会调用此方法
*
* @param context 当前上下文，用于启动新的Activity
* @param intent 包含触发闹钟的笔记信息的Intent，
* 通常通过AlarmInitReceiver设置，包含笔记的URI数据
*/
@Override
public void onReceive(Context context, Intent intent) {
// 将Intent的目标类设置为AlarmAlertActivity，这是显示提醒的界面
intent.setClass(context, AlarmAlertActivity.class);
// 添加FLAG_ACTIVITY_NEW_TASK标志，因为从BroadcastReceiver启动Activity
// 必须在一个新的任务栈中，不能直接在当前任务栈启动
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// 启动闹钟提醒Activity
// AlarmAlertActivity将显示具体的笔记内容提醒用户
context.startActivity(intent);
// 注意：此处没有取消或清除闹钟，如果需要一次性闹钟，
// 应在AlarmAlertActivity中处理闹钟的清除
}
}
}

303
src/ui/DateTimePicker.java
Unescape View File

@ -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;
/**
* 日期时间选择器自定义控件
* 提供年、月、日、时、分的选择功能，支持12小时制和24小时制显示
* 使用NumberPicker实现滚动选择，具有日期跨天自动调整功能
*/
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;
private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
private static final int MINUT_SPINNER_MIN_VAL = 0;
private static final int MINUT_SPINNER_MAX_VAL = 59;
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;
// 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（用于显示最近一周的日期）
// NumberPicker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
private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0; // 24小时制小时最小值
private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23; // 24小时制小时最大值
private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1; // 12小时制小时最小值
private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12; // 12小时制小时最大值
private static final int MINUT_SPINNER_MIN_VAL = 0; // 分钟选择器最小值
private static final int MINUT_SPINNER_MAX_VAL = 59; // 分钟选择器最大值
private static final int AMPM_SPINNER_MIN_VAL = 0; // AM/PM选择器最小值
private static final int AMPM_SPINNER_MAX_VAL = 1; // AM/PM选择器最大值
// UI控件引用
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; // 上午/下午选择器
// 数据模型
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（一周）
private boolean mIsAm; // 是否为上午
private boolean mIs24HourView; // 是否使用24小时制
private boolean mIsEnabled = DEFAULT_ENABLE_STATE; // 控件是否启用
private boolean mInitialising; // 是否正在初始化标志，防止初始化期间触发事件
// 日期时间变化监听器
private OnDateTimeChangedListener mOnDateTimeChangedListener;
/**
* 日期变化监听器
* 当日期选择器值变化时，调整Calendar对象并更新显示
*/
private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
// 根据新旧值差异调整天数
mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
updateDateControl();
onDateTimeChanged();
updateDateControl(); // 更新日期显示
onDateTimeChanged(); // 通知监听器
}
};
/**
* 小时变化监听器
* 处理小时变化，包括12/24小时制转换和跨天边界处理
*/
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小时制下的特殊处理
if (!mIs24HourView) {
// 处理PM到AM的跨天转换（12小时制）
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的跨天转换（12小时制）
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12点切换时AM/PM状态变化
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小时制下的跨天处理
else {
// 23->0 跨到第二天
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->23 跨到前一天
else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) {
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true;
}
}
// 设置新的小时值
int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
mDate.set(Calendar.HOUR_OF_DAY, newHour);
onDateTimeChanged();
onDateTimeChanged(); // 通知监听器
// 如果日期已变化，更新年、月、日
if (isDateChanged) {
setCurrentYear(cal.get(Calendar.YEAR));
setCurrentMonth(cal.get(Calendar.MONTH));
@ -115,21 +147,33 @@ public class DateTimePicker extends FrameLayout {
}
};
/**
* 分钟变化监听器
* 处理分钟滚动时的跨小时边界调整
*/
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;
// 检测分钟是否从最大值滚动到最小值（59->0，增加1小时）
if (oldVal == maxValue && newVal == minValue) {
offset += 1;
} else if (oldVal == minValue && newVal == maxValue) {
}
// 检测分钟是否从最小值滚动到最大值（0->59，减少1小时）
else if (oldVal == minValue && newVal == maxValue) {
offset -= 1;
}
// 如果有小时偏移，调整时间
if (offset != 0) {
mDate.add(Calendar.HOUR_OF_DAY, offset);
mHourSpinner.setValue(getCurrentHour());
updateDateControl();
updateDateControl(); // 更新日期显示
// 更新AM/PM状态
int newHour = getCurrentHourOfDay();
if (newHour >= HOURS_IN_HALF_DAY) {
mIsAm = false;
@ -139,87 +183,117 @@ public class DateTimePicker extends FrameLayout {
updateAmPmControl();
}
}
// 设置新的分钟值
mDate.set(Calendar.MINUTE, newVal);
onDateTimeChanged();
onDateTimeChanged(); // 通知监听器
}
};
/**
* AM/PM变化监听器
* 处理上午/下午切换，调整12小时
*/
private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
mIsAm = !mIsAm;
// AM/PM切换时调整12小时
if (mIsAm) {
mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
} else {
mDate.add(Calendar.HOUR_OF_DAY, HOURS_IN_HALF_DAY);
}
updateAmPmControl();
onDateTimeChanged();
updateAmPmControl(); // 更新AM/PM显示
onDateTimeChanged(); // 通知监听器
}
};
/**
* 日期时间变化监听器接口
*/
public interface OnDateTimeChangedListener {
void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute);
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));
}
/**
* 构造函数 - 完整初始化
* @param context 上下文
* @param date 初始时间戳
* @param is24HourView 是否使用24小时制
*/
public DateTimePicker(Context context, long date, boolean is24HourView) {
super(context);
mDate = Calendar.getInstance();
mInitialising = true;
mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
mInitialising = true; // 设置初始化标志
// 根据当前小时判断是上午还是下午
mIsAm = getCurrentHourOfDay() < HOURS_IN_HALF_DAY;
// 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);
// 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);
String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
// 初始化AM/PM选择器
String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); // 获取本地化的AM/PM字符串
mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL);
mAmPmSpinner.setDisplayedValues(stringsForAmPm);
mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
// update controls to initial state
// 更新控件初始状态
updateDateControl();
updateHourControl();
updateAmPmControl();
set24HourView(is24HourView);
// set to current time
setCurrentDate(date);
setEnabled(isEnabled());
set24HourView(is24HourView); // 设置12/24小时制显示
setCurrentDate(date); // 设置当前时间
setEnabled(isEnabled()); // 设置启用状态
// set the content descriptions
mInitialising = false;
mInitialising = false; // 初始化完成
}
/**
* 设置控件启用状态
*/
@Override
public void setEnabled(boolean enabled) {
if (mIsEnabled == enabled) {
return;
}
super.setEnabled(enabled);
// 设置所有子控件的启用状态
mDateSpinner.setEnabled(enabled);
mMinuteSpinner.setEnabled(enabled);
mHourSpinner.setEnabled(enabled);
@ -227,24 +301,23 @@ public class DateTimePicker extends FrameLayout {
mIsEnabled = enabled;
}
/**
* 获取控件启用状态
*/
@Override
public boolean isEnabled() {
return mIsEnabled;
}
/**
* Get the current date in millis
*
* @return the current date in millis
* 获取当前时间的时间戳
*/
public long getCurrentDateInTimeMillis() {
return mDate.getTimeInMillis();
}
/**
* Set the current date
*
* @param date The current date in millis
* 通过时间戳设置当前时间
*/
public void setCurrentDate(long date) {
Calendar cal = Calendar.getInstance();
@ -254,16 +327,10 @@ 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
* 通过各时间分量设置当前时间
*/
public void setCurrentDate(int year, int month,
int dayOfMonth, int hourOfDay, int minute) {
int dayOfMonth, int hourOfDay, int minute) {
setCurrentYear(year);
setCurrentMonth(month);
setCurrentDay(dayOfMonth);
@ -272,20 +339,17 @@ 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) {
// 防止初始化期间重复触发事件
if (!mInitialising && year == getCurrentYear()) {
return;
}
@ -295,18 +359,14 @@ public class DateTimePicker extends FrameLayout {
}
/**
* Get current month in the year
*
* @return The current month in the year
* 获取当前月份（0-11）
*/
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 +378,14 @@ public class DateTimePicker extends FrameLayout {
}
/**
* Get current day of the month
*
* @return The day of the month
* 获取当前日（月中的第几天）
*/
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
*/
public void setCurrentDay(int dayOfMonth) {
if (!mInitialising && dayOfMonth == getCurrentDay()) {
@ -341,19 +397,22 @@ 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24小时制下的小时（0-23）
*/
public int getCurrentHourOfDay() {
return mDate.get(Calendar.HOUR_OF_DAY);
}
/**
* 获取当前小时（根据12/24小时制返回对应值）
*/
private int getCurrentHour() {
if (mIs24HourView){
return getCurrentHourOfDay();
return getCurrentHourOfDay(); // 24小时制直接返回
} else {
// 12小时制转换：0点显示为12，13点显示为1
int hour = getCurrentHourOfDay();
if (hour > HOURS_IN_HALF_DAY) {
if (hour >= HOURS_IN_HALF_DAY) {
return hour - HOURS_IN_HALF_DAY;
} else {
return hour == 0 ? HOURS_IN_HALF_DAY : hour;
@ -362,15 +421,15 @@ public class DateTimePicker extends FrameLayout {
}
/**
* 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);
// 12小时制下需要同步AM/PM状态
if (!mIs24HourView) {
if (hourOfDay >= HOURS_IN_HALF_DAY) {
mIsAm = false;
@ -390,16 +449,14 @@ 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()) {
@ -411,53 +468,78 @@ public class DateTimePicker extends FrameLayout {
}
/**
* @return true if this is in 24 hour view else false.
* 是否使用24小时制
*/
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12/24小时制显示
*/
public void set24HourView(boolean is24HourView) {
if (mIs24HourView == is24HourView) {
return;
}
mIs24HourView = is24HourView;
// 根据12/24小时制显示或隐藏AM/PM选择器
mAmPmSpinner.setVisibility(is24HourView ? View.GONE : View.VISIBLE);
int hour = getCurrentHourOfDay();
// 更新小时选择器范围
updateHourControl();
// 保持当前小时，但根据新的显示模式调整
int hour = getCurrentHourOfDay();
setCurrentHour(hour);
updateAmPmControl();
}
/**
* 更新日期选择器显示
* 显示以当前日期为中心的前后三天（共一周）
*/
private void updateDateControl() {
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(mDate.getTimeInMillis());
// 计算显示范围：从当前日期前3天开始
cal.add(Calendar.DAY_OF_YEAR, -DAYS_IN_ALL_WEEK / 2 - 1);
mDateSpinner.setDisplayedValues(null);
// 生成一周的日期显示字符串
for (int i = 0; i < DAYS_IN_ALL_WEEK; ++i) {
cal.add(Calendar.DAY_OF_YEAR, 1);
// 格式：月份.日期 星期几（如：01.15 星期一）
mDateDisplayValues[i] = (String) DateFormat.format("MM.dd EEEE", cal);
}
mDateSpinner.setDisplayedValues(mDateDisplayValues);
mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2);
mDateSpinner.invalidate();
mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2); // 当前日期在中间位置
mDateSpinner.invalidate(); // 刷新显示
}
/**
* 更新AM/PM选择器显示
*/
private void updateAmPmControl() {
if (mIs24HourView) {
// 24小时制隐藏AM/PM选择器
mAmPmSpinner.setVisibility(View.GONE);
} else {
// 12小时制显示AM/PM选择器
int index = mIsAm ? Calendar.AM : Calendar.PM;
mAmPmSpinner.setValue(index);
mAmPmSpinner.setVisibility(View.VISIBLE);
}
}
/**
* 更新小时选择器范围
* 根据12/24小时制设置不同的取值范围
*/
private void updateHourControl() {
if (mIs24HourView) {
mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW);
@ -469,17 +551,20 @@ 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
* 通知监听器当前选择的时间
*/
private void onDateTimeChanged() {
if (mOnDateTimeChangedListener != null) {
mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(),
getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute());
}
}
}
}

80
src/ui/DateTimePickerDialog.java
Unescape View File

@ -29,62 +29,114 @@ import android.content.DialogInterface.OnClickListener;
import android.text.format.DateFormat;
import android.text.format.DateUtils;
/**
* 日期时间选择对话框
* 将DateTimePicker控件封装到对话框中，提供完整的日期时间选择界面
* 用户可以通过此对话框设置笔记的提醒时间
*/
public class DateTimePickerDialog extends AlertDialog implements OnClickListener {
private Calendar mDate = Calendar.getInstance();
private boolean mIs24HourView;
private OnDateTimeSetListener mOnDateTimeSetListener;
private DateTimePicker mDateTimePicker;
private Calendar mDate = Calendar.getInstance(); // 当前选择的日期时间
private boolean mIs24HourView; // 是否使用24小时制
private OnDateTimeSetListener mOnDateTimeSetListener; // 日期时间设置完成监听器
private DateTimePicker mDateTimePicker; // 日期时间选择器控件
/**
* 日期时间设置完成监听器接口
* 当用户点击"确定"按钮时回调
*/
public interface OnDateTimeSetListener {
void OnDateTimeSet(AlertDialog dialog, long date);
}
/**
* 构造函数
* @param context 上下文
* @param date 初始日期时间（时间戳）
*/
public DateTimePickerDialog(Context context, long date) {
super(context);
// 创建DateTimePicker控件
mDateTimePicker = new DateTimePicker(context);
setView(mDateTimePicker);
setView(mDateTimePicker); // 将DateTimePicker设置为对话框的内容视图
// 设置DateTimePicker的日期时间变化监听器
mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
public void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute) {
int dayOfMonth, int hourOfDay, int minute) {
// 当DateTimePicker中的时间变化时，更新内部Calendar对象
mDate.set(Calendar.YEAR, year);
mDate.set(Calendar.MONTH, month);
mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);
mDate.set(Calendar.HOUR_OF_DAY, hourOfDay);
mDate.set(Calendar.MINUTE, minute);
// 更新对话框标题显示新的时间
updateTitle(mDate.getTimeInMillis());
}
});
// 设置初始时间
mDate.setTimeInMillis(date);
mDate.set(Calendar.SECOND, 0);
mDate.set(Calendar.SECOND, 0); // 将秒数设为0，只精确到分钟
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
setButton(context.getString(R.string.datetime_dialog_ok), this);
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
// 设置对话框按钮
setButton(DialogInterface.BUTTON_POSITIVE, context.getString(R.string.datetime_dialog_ok), this);
setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
// 根据系统设置决定是否使用24小时制
set24HourView(DateFormat.is24HourFormat(this.getContext()));
// 初始化对话框标题
updateTitle(mDate.getTimeInMillis());
}
/**
* 设置是否使用24小时制显示
* @param is24HourView true表示24小时制，false表示12小时制
*/
public void set24HourView(boolean is24HourView) {
mIs24HourView = is24HourView;
}
/**
* 设置日期时间设置完成的监听器
* @param callBack 监听器对象
*/
public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
mOnDateTimeSetListener = callBack;
}
/**
* 更新对话框标题
* 根据当前选择的日期时间格式化显示为标题
* @param date 当前选择的时间戳
*/
private void updateTitle(long date) {
// 设置日期时间显示格式
int flag =
DateUtils.FORMAT_SHOW_YEAR |
DateUtils.FORMAT_SHOW_DATE |
DateUtils.FORMAT_SHOW_TIME;
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
DateUtils.FORMAT_SHOW_YEAR | // 显示年份
DateUtils.FORMAT_SHOW_DATE | // 显示日期
DateUtils.FORMAT_SHOW_TIME; // 显示时间
// 根据24小时制设置选择时间格式
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : 0;
// 格式化日期时间并设置为对话框标题
setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
}
/**
* 对话框按钮点击事件处理
* 当用户点击"确定"按钮时调用
* @param arg0 对话框对象
* @param arg1 按钮ID（这里只处理确定按钮）
*/
public void onClick(DialogInterface arg0, int arg1) {
// 如果设置了监听器，回调选择的日期时间
if (mOnDateTimeSetListener != null) {
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
}
}
}

41
src/ui/DropdownMenu.java
Unescape View File

@ -27,35 +27,66 @@ import android.widget.PopupMenu.OnMenuItemClickListener;
import net.micode.notes.R;
/**
* 下拉菜单封装类
* 将Button和PopupMenu组合封装，提供便捷的下拉菜单功能
* 主要用于笔记列表界面的排序、筛选等操作菜单
*/
public class DropdownMenu {
private Button mButton;
private PopupMenu mPopupMenu;
private Menu mMenu;
private Button mButton; // 显示下拉菜单的按钮
private PopupMenu mPopupMenu; // Android原生弹出菜单
private Menu mMenu; // 菜单项容器
/**
* 构造函数
* @param context 上下文环境
* @param button 触发下拉菜单的按钮
* @param menuId 菜单资源ID（R.menu.xxx）
*/
public DropdownMenu(Context context, Button button, int menuId) {
mButton = button;
// 设置按钮背景为下拉箭头图标
mButton.setBackgroundResource(R.drawable.dropdown_icon);
// 创建PopupMenu，绑定到指定按钮
mPopupMenu = new PopupMenu(context, mButton);
mMenu = mPopupMenu.getMenu();
// 从菜单资源文件加载菜单项
mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
// 设置按钮点击事件：显示下拉菜单
mButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mPopupMenu.show();
mPopupMenu.show(); // 显示下拉菜单
}
});
}
/**
* 设置菜单项点击监听器
* @param listener 菜单项点击监听器
*/
public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
if (mPopupMenu != null) {
mPopupMenu.setOnMenuItemClickListener(listener);
}
}
/**
* 根据ID查找菜单项
* @param id 菜单项资源ID
* @return 找到的菜单项，未找到返回null
*/
public MenuItem findItem(int id) {
return mMenu.findItem(id);
}
/**
* 设置按钮显示的标题文本
* @param title 要显示的文本
*/
public void setTitle(CharSequence title) {
mButton.setText(title);
}
}
}

84
src/ui/FoldersListAdapter.java
Unescape View File

@ -28,53 +28,111 @@ import net.micode.notes.R;
import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
/**
* 文件夹列表适配器
* 用于在移动笔记等场景中显示文件夹选择列表
* 继承自CursorAdapter，将数据库中的文件夹数据绑定到列表视图
*/
public class FoldersListAdapter extends CursorAdapter {
// 数据库查询的列投影，只查询需要的字段
public static final String [] PROJECTION = {
NoteColumns.ID,
NoteColumns.SNIPPET
NoteColumns.ID, // 文件夹ID
NoteColumns.SNIPPET // 文件夹名称（在数据库中可能存储在snippet字段）
};
public static final int ID_COLUMN = 0;
public static final int NAME_COLUMN = 1;
// 列索引常量，便于访问Cursor中的数据
public static final int ID_COLUMN = 0; // ID列索引
public static final int NAME_COLUMN = 1; // 名称列索引
/**
* 构造函数
* @param context 上下文
* @param c 包含文件夹数据的游标
*/
public FoldersListAdapter(Context context, Cursor c) {
super(context, c);
// TODO Auto-generated constructor stub
}
/**
* 创建新的列表项视图
* @param context 上下文
* @param cursor 当前数据游标
* @param parent 父视图组
* @return 新创建的视图
*/
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
// 创建FolderListItem作为列表项视图
return new FolderListItem(context);
}
/**
* 将数据绑定到已有的视图
* @param view 要绑定的视图
* @param context 上下文
* @param cursor 当前数据游标
*/
@Override
public void bindView(View view, Context context, Cursor cursor) {
// 确保视图是FolderListItem类型
if (view instanceof FolderListItem) {
String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
// 获取文件夹名称
String folderName;
// 如果是根文件夹（ID为Notes.ID_ROOT_FOLDER），显示特殊名称
if (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) {
folderName = context.getString(R.string.menu_move_parent_folder);
} else {
folderName = cursor.getString(NAME_COLUMN);
}
// 绑定文件夹名称到视图
((FolderListItem) view).bind(folderName);
}
}
/**
* 获取指定位置的文件夹名称
* @param context 上下文，用于获取本地化字符串
* @param position 列表位置
* @return 文件夹名称字符串
*/
public String getFolderName(Context context, int position) {
// 获取指定位置的Cursor
Cursor cursor = (Cursor) getItem(position);
return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
// 根据是否为根文件夹返回相应的名称
if (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) {
return context.getString(R.string.menu_move_parent_folder);
} else {
return cursor.getString(NAME_COLUMN);
}
}
/**
* 文件夹列表项内部类
* 表示单个文件夹在列表中的显示视图
*/
private class FolderListItem extends LinearLayout {
private TextView mName;
private TextView mName; // 显示文件夹名称的TextView
/**
* 构造函数
* @param context 上下文
*/
public FolderListItem(Context context) {
super(context);
// 从布局文件加载视图
inflate(context, R.layout.folder_list_item, this);
// 初始化TextView
mName = (TextView) findViewById(R.id.tv_folder_name);
}
/**
* 绑定数据到视图
* @param name 文件夹名称
*/
public void bind(String name) {
mName.setText(name);
mName.setText(name); // 设置文件夹名称
}
}
}
}

413
src/ui/NoteEditActivity.java
Unescape View File

@ -71,19 +71,26 @@ import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 笔记编辑活动
* 核心功能：创建、编辑、查看笔记，支持富文本编辑、提醒设置、清单模式等
* 这是笔记应用的主要编辑界面，用户在此进行笔记内容的编写和管理
*/
public class NoteEditActivity extends Activity implements OnClickListener,
NoteSettingChangedListener, OnTextViewChangeListener {
private class HeadViewHolder {
public TextView tvModified;
public ImageView ivAlertIcon;
public TextView tvAlertDate;
public ImageView ibSetBgColor;
/**
* 标题栏视图持有者
* 用于管理笔记标题区域的UI组件
*/
private class HeadViewHolder {
public TextView tvModified; // 显示最后修改时间
public ImageView ivAlertIcon; // 提醒图标
public TextView tvAlertDate; // 提醒时间
public ImageView ibSetBgColor; // 设置背景颜色按钮
}
// 背景颜色选择器按钮ID与颜色值的映射
private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
static {
sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
@ -93,6 +100,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE);
}
// 背景颜色与选中状态指示器ID的映射
private static final Map<Integer, Integer> sBgSelectorSelectionMap = new HashMap<Integer, Integer>();
static {
sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select);
@ -102,6 +110,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select);
}
// 字体大小选择器按钮ID与字体大小值的映射
private static final Map<Integer, Integer> sFontSizeBtnsMap = new HashMap<Integer, Integer>();
static {
sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE);
@ -110,6 +119,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER);
}
// 字体大小与选中状态指示器ID的映射
private static final Map<Integer, Integer> sFontSelectorSelectionMap = new HashMap<Integer, Integer>();
static {
sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select);
@ -118,56 +128,50 @@ public class NoteEditActivity extends Activity implements OnClickListener,
sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select);
}
private static final String TAG = "NoteEditActivity";
private HeadViewHolder mNoteHeaderHolder;
private View mHeadViewPanel;
private View mNoteBgColorSelector;
private View mFontSizeSelector;
private EditText mNoteEditor;
private View mNoteEditorPanel;
private WorkingNote mWorkingNote;
private static final String TAG = "NoteEditActivity"; // 日志标签
private SharedPreferences mSharedPrefs;
private int mFontSizeId;
private HeadViewHolder mNoteHeaderHolder; // 标题栏视图持有者
private View mHeadViewPanel; // 标题面板
private View mNoteBgColorSelector; // 背景颜色选择器
private View mFontSizeSelector; // 字体大小选择器
private EditText mNoteEditor; // 笔记编辑框
private View mNoteEditorPanel; // 笔记编辑面板
private WorkingNote mWorkingNote; // 当前正在编辑的笔记数据模型
private SharedPreferences mSharedPrefs; // 共享首选项
private int mFontSizeId; // 当前字体大小ID
private static final String PREFERENCE_FONT_SIZE = "pref_font_size";
private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; // 字体大小首选项键名
private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; // 快捷方式图标标题最大长度
private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10;
// 清单模式标记常量
public static final String TAG_CHECKED = String.valueOf('\u221A'); // 勾选标记 √
public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); // 未勾选标记 □
public static final String TAG_CHECKED = String.valueOf('\u221A');
public static final String TAG_UNCHECKED = String.valueOf('\u25A1');
private LinearLayout mEditTextList;
private String mUserQuery;
private Pattern mPattern;
private LinearLayout mEditTextList; // 清单模式下的编辑列表容器
private String mUserQuery; // 搜索查询词（用于高亮显示）
private Pattern mPattern; // 搜索高亮正则表达式模式
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.note_edit);
this.setContentView(R.layout.note_edit); // 设置布局
// 初始化活动状态，如果失败则结束活动
if (savedInstanceState == null && !initActivityState(getIntent())) {
finish();
return;
}
initResources();
initResources(); // 初始化资源
}
/**
* Current activity may be killed when the memory is low. Once it is killed, for another time
* user load this activity, we should restore the former state
* 当活动被系统杀死后恢复时调用
* 用于恢复之前的状态
*/
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
// 恢复笔记ID并重新初始化活动状态
if (savedInstanceState != null && savedInstanceState.containsKey(Intent.EXTRA_UID)) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID));
@ -179,24 +183,26 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
}
/**
* 初始化活动状态
* @param intent 启动活动的意图
* @return 初始化是否成功
*/
private boolean initActivityState(Intent intent) {
/**
* If the user specified the {@link Intent#ACTION_VIEW} but not provided with id,
* then jump to the NotesListActivity
*/
mWorkingNote = null;
// 处理查看笔记的意图
if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) {
long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
mUserQuery = "";
/**
* Starting from the searched result
*/
// 处理从搜索结果打开的情况
if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {
noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);
}
// 检查笔记是否存在
if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
Intent jump = new Intent(this, NotesListActivity.class);
startActivity(jump);
@ -204,6 +210,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
finish();
return false;
} else {
// 加载笔记
mWorkingNote = WorkingNote.load(this, noteId);
if (mWorkingNote == null) {
Log.e(TAG, "load note failed with note id" + noteId);
@ -211,11 +218,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
return false;
}
}
// 隐藏软键盘
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
| WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
} else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
// New note
}
// 处理创建或编辑笔记的意图
else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
// 新笔记参数
long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);
@ -224,7 +234,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,
ResourceParser.getDefaultBgId(this));
// Parse call-record note
// 解析通话记录笔记
String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0);
if (callDate != 0 && phoneNumber != null) {
@ -232,6 +242,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
Log.w(TAG, "The call record number is null");
}
long noteId = 0;
// 检查是否已存在相同通话记录的笔记
if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(),
phoneNumber, callDate)) > 0) {
mWorkingNote = WorkingNote.load(this, noteId);
@ -241,15 +252,18 @@ public class NoteEditActivity extends Activity implements OnClickListener,
return false;
}
} else {
// 创建新的通话记录笔记
mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId,
widgetType, bgResId);
mWorkingNote.convertToCallNote(phoneNumber, callDate);
}
} else {
// 创建普通新笔记
mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType,
bgResId);
}
// 显示软键盘
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
| WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
@ -258,6 +272,8 @@ public class NoteEditActivity extends Activity implements OnClickListener,
finish();
return false;
}
// 设置笔记设置变化监听器
mWorkingNote.setOnSettingStatusChangedListener(this);
return true;
}
@ -265,42 +281,56 @@ public class NoteEditActivity extends Activity implements OnClickListener,
@Override
protected void onResume() {
super.onResume();
initNoteScreen();
initNoteScreen(); // 初始化笔记显示界面
}
/**
* 初始化笔记显示界面
*/
private void initNoteScreen() {
// 设置字体大小
mNoteEditor.setTextAppearance(this, TextAppearanceResources
.getTexAppearanceResource(mFontSizeId));
// 根据清单模式切换显示方式
if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
switchToListMode(mWorkingNote.getContent());
} else {
// 普通模式，显示内容并高亮搜索词
mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
mNoteEditor.setSelection(mNoteEditor.getText().length());
}
// 隐藏所有背景选择指示器
for (Integer id : sBgSelectorSelectionMap.keySet()) {
findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE);
}
// 设置背景颜色
mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());
mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());
// 显示修改时间
mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this,
mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE
| DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME
| DateUtils.FORMAT_SHOW_YEAR));
/**
* TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker
* is not ready
*/
// 显示提醒信息
showAlertHeader();
}
/**
* 显示提醒头部信息
*/
private void showAlertHeader() {
if (mWorkingNote.hasClockAlert()) {
long time = System.currentTimeMillis();
// 检查提醒是否过期
if (time > mWorkingNote.getAlertDate()) {
mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);
} else {
// 显示相对时间（如"10分钟后"）
mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(
mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS));
}
@ -315,16 +345,15 @@ public class NoteEditActivity extends Activity implements OnClickListener,
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
initActivityState(intent);
initActivityState(intent); // 重新初始化活动状态
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
/**
* For new note without note id, we should firstly save it to
* generate a id. If the editing note is not worth saving, there
* is no id which is equivalent to create new note
* 对于没有ID的新笔记，需要先保存以生成ID
* 如果编辑的笔记不值得保存，则没有ID，相当于创建新笔记
*/
if (!mWorkingNote.existInDatabase()) {
saveNote();
@ -335,12 +364,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
// 点击外部时隐藏颜色选择器
if (mNoteBgColorSelector.getVisibility() == View.VISIBLE
&& !inRangeOfView(mNoteBgColorSelector, ev)) {
mNoteBgColorSelector.setVisibility(View.GONE);
return true;
}
// 点击外部时隐藏字体大小选择器
if (mFontSizeSelector.getVisibility() == View.VISIBLE
&& !inRangeOfView(mFontSizeSelector, ev)) {
mFontSizeSelector.setVisibility(View.GONE);
@ -349,6 +380,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
return super.dispatchTouchEvent(ev);
}
/**
* 检查触摸事件是否在指定视图范围内
*/
private boolean inRangeOfView(View view, MotionEvent ev) {
int []location = new int[2];
view.getLocationOnScreen(location);
@ -358,11 +392,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
|| ev.getX() > (x + view.getWidth())
|| ev.getY() < y
|| ev.getY() > (y + view.getHeight())) {
return false;
}
return false;
}
return true;
}
/**
* 初始化UI资源和视图
*/
private void initResources() {
mHeadViewPanel = findViewById(R.id.note_title);
mNoteHeaderHolder = new HeadViewHolder();
@ -374,40 +411,51 @@ public class NoteEditActivity extends Activity implements OnClickListener,
mNoteEditor = (EditText) findViewById(R.id.note_edit_view);
mNoteEditorPanel = findViewById(R.id.sv_note_edit);
mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector);
// 设置背景颜色选择器按钮点击事件
for (int id : sBgSelectorBtnsMap.keySet()) {
ImageView iv = (ImageView) findViewById(id);
iv.setOnClickListener(this);
}
mFontSizeSelector = findViewById(R.id.font_size_selector);
// 设置字体大小选择器点击事件
for (int id : sFontSizeBtnsMap.keySet()) {
View view = findViewById(id);
view.setOnClickListener(this);
};
// 获取字体大小首选项
mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
/**
* HACKME: Fix bug of store the resource id in shared preference.
* The id may larger than the length of resources, in this case,
* return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE}
* 修复共享首选项中存储资源ID的bug。
* 如果ID大于资源长度，则返回默认字体大小
*/
if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) {
mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE;
}
mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list);
}
@Override
protected void onPause() {
super.onPause();
// 暂停时保存笔记
if(saveNote()) {
Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length());
}
clearSettingState();
clearSettingState(); // 清除设置状态
}
/**
* 更新桌面小部件
*/
private void updateWidget() {
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
// 根据部件类型设置相应类
if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {
intent.setClass(this, NoteWidgetProvider_2x.class);
} else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) {
@ -418,29 +466,40 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {
mWorkingNote.getWidgetId()
mWorkingNote.getWidgetId()
});
sendBroadcast(intent);
setResult(RESULT_OK, intent);
}
/**
* 点击事件处理
*/
public void onClick(View v) {
int id = v.getId();
// 背景颜色设置按钮
if (id == R.id.btn_set_bg_color) {
mNoteBgColorSelector.setVisibility(View.VISIBLE);
findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
- View.VISIBLE);
} else if (sBgSelectorBtnsMap.containsKey(id)) {
View.VISIBLE);
}
// 背景颜色选择
else if (sBgSelectorBtnsMap.containsKey(id)) {
findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
View.GONE);
mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id));
mNoteBgColorSelector.setVisibility(View.GONE);
} else if (sFontSizeBtnsMap.containsKey(id)) {
}
// 字体大小选择
else if (sFontSizeBtnsMap.containsKey(id)) {
findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE);
mFontSizeId = sFontSizeBtnsMap.get(id);
mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit();
findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
// 更新编辑框字体大小
if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
getWorkingText();
switchToListMode(mWorkingNote.getContent());
@ -455,13 +514,16 @@ public class NoteEditActivity extends Activity implements OnClickListener,
@Override
public void onBackPressed() {
if(clearSettingState()) {
return;
return; // 如果有设置面板打开，先关闭它们
}
saveNote();
saveNote(); // 保存笔记
super.onBackPressed();
}
/**
* 清除设置状态（隐藏选择器）
*/
private boolean clearSettingState() {
if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {
mNoteBgColorSelector.setVisibility(View.GONE);
@ -473,6 +535,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
return false;
}
/**
* 背景颜色变化回调
*/
public void onBackgroundColorChanged() {
findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
View.VISIBLE);
@ -485,18 +550,24 @@ public class NoteEditActivity extends Activity implements OnClickListener,
if (isFinishing()) {
return true;
}
clearSettingState();
menu.clear();
clearSettingState(); // 清除设置状态
menu.clear(); // 清空菜单
// 根据笔记类型加载不同菜单
if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) {
getMenuInflater().inflate(R.menu.call_note_edit, menu);
} else {
getMenuInflater().inflate(R.menu.note_edit, menu);
}
// 设置清单模式菜单项标题
if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode);
} else {
menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode);
}
// 根据是否有提醒显示/隐藏相应菜单项
if (mWorkingNote.hasClockAlert()) {
menu.findItem(R.id.menu_alert).setVisible(false);
} else {
@ -508,43 +579,31 @@ public class NoteEditActivity extends Activity implements OnClickListener,
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_new_note:
case R.id.menu_new_note: // 新建笔记
createNewNote();
break;
case R.id.menu_delete:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(getString(R.string.alert_title_delete));
builder.setIcon(android.R.drawable.ic_dialog_alert);
builder.setMessage(getString(R.string.alert_message_delete_note));
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
deleteCurrentNote();
finish();
}
});
builder.setNegativeButton(android.R.string.cancel, null);
builder.show();
case R.id.menu_delete: // 删除笔记
showDeleteConfirmDialog();
break;
case R.id.menu_font_size:
case R.id.menu_font_size: // 字体大小
mFontSizeSelector.setVisibility(View.VISIBLE);
findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
break;
case R.id.menu_list_mode:
case R.id.menu_list_mode: // 清单/普通模式切换
mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
TextNote.MODE_CHECK_LIST : 0);
break;
case R.id.menu_share:
case R.id.menu_share: // 分享笔记
getWorkingText();
sendTo(this, mWorkingNote.getContent());
break;
case R.id.menu_send_to_desktop:
case R.id.menu_send_to_desktop: // 发送到桌面
sendToDesktop();
break;
case R.id.menu_alert:
case R.id.menu_alert: // 设置提醒
setReminder();
break;
case R.id.menu_delete_remind:
case R.id.menu_delete_remind: // 删除提醒
mWorkingNote.setAlertDate(0, false);
break;
default:
@ -553,19 +612,40 @@ public class NoteEditActivity extends Activity implements OnClickListener,
return true;
}
/**
* 显示删除确认对话框
*/
private void showDeleteConfirmDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(getString(R.string.alert_title_delete));
builder.setIcon(android.R.drawable.ic_dialog_alert);
builder.setMessage(getString(R.string.alert_message_delete_note));
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
deleteCurrentNote();
finish();
}
});
builder.setNegativeButton(android.R.string.cancel, null);
builder.show();
}
/**
* 设置提醒
*/
private void setReminder() {
DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());
d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
public void OnDateTimeSet(AlertDialog dialog, long date) {
mWorkingNote.setAlertDate(date , true);
mWorkingNote.setAlertDate(date, true);
}
});
d.show();
}
/**
* Share note to apps that support {@link Intent#ACTION_SEND} action
* and {@text/plain} type
* 分享笔记到支持ACTION_SEND的应用
*/
private void sendTo(Context context, String info) {
Intent intent = new Intent(Intent.ACTION_SEND);
@ -574,11 +654,14 @@ public class NoteEditActivity extends Activity implements OnClickListener,
context.startActivity(intent);
}
/**
* 创建新笔记
*/
private void createNewNote() {
// Firstly, save current editing notes
// 首先保存当前编辑的笔记
saveNote();
// For safety, start a new NoteEditActivity
// 启动新的NoteEditActivity
finish();
Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
@ -586,6 +669,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
startActivity(intent);
}
/**
* 删除当前笔记
*/
private void deleteCurrentNote() {
if (mWorkingNote.existInDatabase()) {
HashSet<Long> ids = new HashSet<Long>();
@ -595,6 +681,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
} else {
Log.d(TAG, "Wrong note id, should not happen");
}
// 根据同步模式决定删除方式
if (!isSyncMode()) {
if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) {
Log.e(TAG, "Delete Note error");
@ -608,24 +695,32 @@ public class NoteEditActivity extends Activity implements OnClickListener,
mWorkingNote.markDeleted(true);
}
/**
* 检查是否处于同步模式
*/
private boolean isSyncMode() {
return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
}
/**
* 闹钟提醒变化回调
*/
public void onClockAlertChanged(long date, boolean set) {
/**
* User could set clock to an unsaved note, so before setting the
* alert clock, we should save the note first
* 用户可以为未保存的笔记设置闹钟，因此在设置提醒之前，应先保存笔记
*/
if (!mWorkingNote.existInDatabase()) {
saveNote();
}
if (mWorkingNote.getNoteId() > 0) {
Intent intent = new Intent(this, AlarmReceiver.class);
intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()));
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
showAlertHeader();
// 设置或取消闹钟
if(!set) {
alarmManager.cancel(pendingIntent);
} else {
@ -633,31 +728,39 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
} else {
/**
* There is the condition that user has input nothing (the note is
* not worthy saving), we have no note id, remind the user that he
* should input something
* 用户没有输入任何内容（笔记不值得保存），我们没有笔记ID，
* 提醒用户需要输入一些内容
*/
Log.e(TAG, "Clock alert setting error");
showToast(R.string.error_note_empty_for_clock);
}
}
/**
* 小部件变化回调
*/
public void onWidgetChanged() {
updateWidget();
}
/**
* 编辑框删除事件回调（清单模式）
*/
public void onEditTextDelete(int index, String text) {
int childCount = mEditTextList.getChildCount();
if (childCount == 1) {
return;
return; // 不能删除最后一个项目
}
// 更新后续项目的索引
for (int i = index + 1; i < childCount; i++) {
((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
.setIndex(i - 1);
}
mEditTextList.removeViewAt(index);
mEditTextList.removeViewAt(index); // 删除项目
// 将删除的文本合并到前一个或第一个项目
NoteEditText edit = null;
if(index == 0) {
edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(
@ -672,27 +775,38 @@ public class NoteEditActivity extends Activity implements OnClickListener,
edit.setSelection(length);
}
/**
* 编辑框回车事件回调（清单模式）
*/
public void onEditTextEnter(int index, String text) {
/**
* Should not happen, check for debug
* 不应该发生，检查调试
*/
if(index > mEditTextList.getChildCount()) {
Log.e(TAG, "Index out of mEditTextList boundrary, should not happen");
}
// 创建新项目并插入到列表
View view = getListItem(text, index);
mEditTextList.addView(view, index);
NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
edit.requestFocus();
edit.setSelection(0);
// 更新后续项目的索引
for (int i = index + 1; i < mEditTextList.getChildCount(); i++) {
((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
.setIndex(i);
}
}
/**
* 切换到清单模式
*/
private void switchToListMode(String text) {
mEditTextList.removeAllViews();
mEditTextList.removeAllViews(); // 清空当前列表
// 将文本按行分割为清单项目
String[] items = text.split("\n");
int index = 0;
for (String item : items) {
@ -701,20 +815,26 @@ public class NoteEditActivity extends Activity implements OnClickListener,
index++;
}
}
// 添加一个空项目用于编辑
mEditTextList.addView(getListItem("", index));
mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus();
mNoteEditor.setVisibility(View.GONE);
mEditTextList.setVisibility(View.VISIBLE);
mNoteEditor.setVisibility(View.GONE); // 隐藏普通编辑框
mEditTextList.setVisibility(View.VISIBLE); // 显示清单列表
}
/**
* 获取高亮搜索结果的Spannable
*/
private Spannable getHighlightQueryResult(String fullText, String userQuery) {
SpannableString spannable = new SpannableString(fullText == null ? "" : fullText);
if (!TextUtils.isEmpty(userQuery)) {
mPattern = Pattern.compile(userQuery);
mPattern = Pattern.compile(userQuery); // 创建正则表达式模式
Matcher m = mPattern.matcher(fullText);
int start = 0;
while (m.find(start)) {
// 为匹配的文本设置背景色高亮
spannable.setSpan(
new BackgroundColorSpan(this.getResources().getColor(
R.color.user_query_highlight)), m.start(), m.end(),
@ -725,13 +845,19 @@ public class NoteEditActivity extends Activity implements OnClickListener,
return spannable;
}
/**
* 创建清单项目视图
*/
private View getListItem(String item, int index) {
View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null);
final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
// 设置复选框状态变化监听
CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item));
cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// 根据选中状态设置删除线
if (isChecked) {
edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
} else {
@ -740,6 +866,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
});
// 解析清单标记
if (item.startsWith(TAG_CHECKED)) {
cb.setChecked(true);
edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
@ -750,17 +877,21 @@ public class NoteEditActivity extends Activity implements OnClickListener,
item = item.substring(TAG_UNCHECKED.length(), item.length()).trim();
}
edit.setOnTextViewChangeListener(this);
edit.setIndex(index);
edit.setText(getHighlightQueryResult(item, mUserQuery));
edit.setOnTextViewChangeListener(this); // 设置文本变化监听
edit.setIndex(index); // 设置项目索引
edit.setText(getHighlightQueryResult(item, mUserQuery)); // 设置文本（支持高亮）
return view;
}
/**
* 文本变化回调（清单模式）
*/
public void onTextChange(int index, boolean hasText) {
if (index >= mEditTextList.getChildCount()) {
Log.e(TAG, "Wrong index, should not happen");
return;
}
// 根据是否有文本显示/隐藏复选框
if(hasText) {
mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE);
} else {
@ -768,11 +899,17 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
}
/**
* 清单模式变化回调
*/
public void onCheckListModeChanged(int oldMode, int newMode) {
if (newMode == TextNote.MODE_CHECK_LIST) {
// 切换到清单模式
switchToListMode(mNoteEditor.getText().toString());
} else {
// 切换到普通模式
if (!getWorkingText()) {
// 移除未选中标记
mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ",
""));
}
@ -782,14 +919,19 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
}
/**
* 获取工作文本（从UI提取到数据模型）
*/
private boolean getWorkingText() {
boolean hasChecked = false;
if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
// 清单模式：组合所有项目
StringBuilder sb = new StringBuilder();
for (int i = 0; i < mEditTextList.getChildCount(); i++) {
View view = mEditTextList.getChildAt(i);
NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
if (!TextUtils.isEmpty(edit.getText())) {
// 根据复选框状态添加相应标记
if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) {
sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n");
hasChecked = true;
@ -800,32 +942,37 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
mWorkingNote.setWorkingText(sb.toString());
} else {
// 普通模式：直接获取编辑框文本
mWorkingNote.setWorkingText(mNoteEditor.getText().toString());
}
return hasChecked;
}
/**
* 保存笔记
*/
private boolean saveNote() {
getWorkingText();
boolean saved = mWorkingNote.saveNote();
getWorkingText(); // 获取当前工作文本
boolean saved = mWorkingNote.saveNote(); // 保存到数据库
if (saved) {
/**
* There are two modes from List view to edit view, open one note,
* create/edit a node. Opening node requires to the original
* position in the list when back from edit view, while creating a
* new node requires to the top of the list. This code
* {@link #RESULT_OK} is used to identify the create/edit state
* 从列表视图到编辑视图有两种模式：打开笔记和创建/编辑笔记。
* 打开笔记需要返回到列表中的原始位置，
* 而创建新笔记需要返回到列表顶部。
* 使用RESULT_OK来标识创建/编辑状态
*/
setResult(RESULT_OK);
}
return saved;
}
/**
* 发送到桌面（创建快捷方式）
*/
private void sendToDesktop() {
/**
* Before send message to home, we should make sure that current
* editing note is exists in databases. So, for new note, firstly
* save it
* 在发送到桌面之前，应确保当前编辑的笔记存在于数据库中。
* 因此，对于新笔记，首先保存它
*/
if (!mWorkingNote.existInDatabase()) {
saveNote();
@ -833,29 +980,32 @@ public class NoteEditActivity extends Activity implements OnClickListener,
if (mWorkingNote.getNoteId() > 0) {
Intent sender = new Intent();
// 创建快捷方式意图
Intent shortcutIntent = new Intent(this, NoteEditActivity.class);
shortcutIntent.setAction(Intent.ACTION_VIEW);
shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId());
sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
sender.putExtra(Intent.EXTRA_SHORTCUT_NAME,
makeShortcutIconTitle(mWorkingNote.getContent()));
makeShortcutIconTitle(mWorkingNote.getContent())); // 快捷方式名称
sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app));
sender.putExtra("duplicate", true);
sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app)); // 图标
sender.putExtra("duplicate", true); // 允许重复
sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); // 安装快捷方式
showToast(R.string.info_note_enter_desktop);
sendBroadcast(sender);
} else {
/**
* There is the condition that user has input nothing (the note is
* not worthy saving), we have no note id, remind the user that he
* should input something
* 用户没有输入任何内容（笔记不值得保存），我们没有笔记ID，
* 提醒用户需要输入一些内容
*/
Log.e(TAG, "Send to desktop error");
showToast(R.string.error_note_empty_for_send_to_desktop);
}
}
/**
* 生成快捷方式图标标题
*/
private String makeShortcutIconTitle(String content) {
content = content.replace(TAG_CHECKED, "");
content = content.replace(TAG_UNCHECKED, "");
@ -863,6 +1013,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
SHORTCUT_ICON_TITLE_MAX_LEN) : content;
}
/**
* 显示Toast提示
*/
private void showToast(int resId) {
showToast(resId, Toast.LENGTH_SHORT);
}
@ -870,4 +1023,4 @@ public class NoteEditActivity extends Activity implements OnClickListener,
private void showToast(int resId, int duration) {
Toast.makeText(this, resId, duration).show();
}
}
}

125
src/ui/NoteEditText.java
Unescape View File

@ -37,99 +37,144 @@ import net.micode.notes.R;
import java.util.HashMap;
import java.util.Map;
/**
* 自定义笔记编辑文本框
* 扩展自EditText，用于在NoteEditActivity中提供特殊的文本编辑功能
* 主要功能：处理清单模式下的键盘事件、文本变化监听和链接识别
*/
public class NoteEditText extends EditText {
private static final String TAG = "NoteEditText";
private int mIndex;
private int mSelectionStartBeforeDelete;
private static final String TAG = "NoteEditText"; // 日志标签
private int mIndex; // 当前编辑框在列表中的索引
private int mSelectionStartBeforeDelete; // 删除操作前的光标起始位置
private static final String SCHEME_TEL = "tel:" ;
private static final String SCHEME_HTTP = "http:" ;
private static final String SCHEME_EMAIL = "mailto:" ;
// URL协议常量
private static final String SCHEME_TEL = "tel:" ; // 电话协议
private static final String SCHEME_HTTP = "http:" ; // HTTP协议
private static final String SCHEME_EMAIL = "mailto:"; // 邮件协议
// URL协议与对应菜单资源ID的映射
private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
static {
sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web);
sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);
sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); // 电话链接
sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web); // 网页链接
sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);// 邮件链接
}
/**
* Call by the {@link NoteEditActivity} to delete or add edit text
* 文本视图变化监听器接口
* 由NoteEditActivity实现，用于处理编辑框的变化事件
*/
public interface OnTextViewChangeListener {
/**
* Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
* and the text is null
* 当按下删除键且文本为空时，删除当前编辑框
* @param index 编辑框索引
* @param text 编辑框内容
*/
void onEditTextDelete(int index, String text);
/**
* Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
* happen
* 当按下回车键时，在当前编辑框后添加新的编辑框
* @param index 当前编辑框索引
* @param text 当前光标后的文本（将被移动到新编辑框）
*/
void onEditTextEnter(int index, String text);
/**
* Hide or show item option when text change
* 当文本变化时，显示或隐藏项目选项
* @param index 编辑框索引
* @param hasText 是否有文本
*/
void onTextChange(int index, boolean hasText);
}
private OnTextViewChangeListener mOnTextViewChangeListener;
private OnTextViewChangeListener mOnTextViewChangeListener; // 文本变化监听器
/**
* 构造函数
* @param context 上下文
*/
public NoteEditText(Context context) {
super(context, null);
mIndex = 0;
}
/**
* 设置编辑框索引
* @param index 索引值
*/
public void setIndex(int index) {
mIndex = index;
}
/**
* 设置文本变化监听器
* @param listener 监听器对象
*/
public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
mOnTextViewChangeListener = listener;
}
/**
* 构造函数
* @param context 上下文
* @param attrs 属性集
*/
public NoteEditText(Context context, AttributeSet attrs) {
super(context, attrs, android.R.attr.editTextStyle);
}
/**
* 构造函数
* @param context 上下文
* @param attrs 属性集
* @param defStyle 默认样式
*/
public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
/**
* 处理触摸事件
* 重写此方法以支持在触摸位置设置光标
*/
@Override
public boolean onTouchEvent(MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// 计算触摸位置对应的字符偏移量
int x = (int) event.getX();
int y = (int) event.getY();
x -= getTotalPaddingLeft();
x -= getTotalPaddingLeft(); // 减去内边距
y -= getTotalPaddingTop();
x += getScrollX();
x += getScrollX(); // 加上滚动偏移
y += getScrollY();
Layout layout = getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
Selection.setSelection(getText(), off);
int line = layout.getLineForVertical(y); // 获取垂直方向行号
int off = layout.getOffsetForHorizontal(line, x); // 获取水平方向字符偏移
Selection.setSelection(getText(), off); // 设置光标位置
break;
}
return super.onTouchEvent(event);
}
/**
* 按键按下事件处理
* 主要处理回车键和删除键的预处理
*/
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
case KeyEvent.KEYCODE_ENTER: // 回车键
if (mOnTextViewChangeListener != null) {
// 如果设置了监听器，返回false让onKeyUp处理
return false;
}
break;
case KeyEvent.KEYCODE_DEL:
case KeyEvent.KEYCODE_DEL: // 删除键
// 记录删除前的光标位置
mSelectionStartBeforeDelete = getSelectionStart();
break;
default:
@ -138,11 +183,16 @@ public class NoteEditText extends EditText {
return super.onKeyDown(keyCode, event);
}
/**
* 按键抬起事件处理
* 主要处理回车键和删除键的具体逻辑
*/
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch(keyCode) {
case KeyEvent.KEYCODE_DEL:
case KeyEvent.KEYCODE_DEL: // 删除键
if (mOnTextViewChangeListener != null) {
// 如果光标在开头且不是第一个编辑框，则触发删除事件
if (0 == mSelectionStartBeforeDelete && mIndex != 0) {
mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString());
return true;
@ -151,11 +201,12 @@ public class NoteEditText extends EditText {
Log.d(TAG, "OnTextViewChangeListener was not seted");
}
break;
case KeyEvent.KEYCODE_ENTER:
case KeyEvent.KEYCODE_ENTER: // 回车键
if (mOnTextViewChangeListener != null) {
// 将当前光标后的文本移到新编辑框
int selectionStart = getSelectionStart();
String text = getText().subSequence(selectionStart, length()).toString();
setText(getText().subSequence(0, selectionStart));
setText(getText().subSequence(0, selectionStart)); // 保留光标前的文本
mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text);
} else {
Log.d(TAG, "OnTextViewChangeListener was not seted");
@ -167,9 +218,14 @@ public class NoteEditText extends EditText {
return super.onKeyUp(keyCode, event);
}
/**
* 焦点变化事件处理
* 当焦点变化时，通知监听器文本存在状态
*/
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
if (mOnTextViewChangeListener != null) {
// 失去焦点时检查是否有文本
if (!focused && TextUtils.isEmpty(getText())) {
mOnTextViewChangeListener.onTextChange(mIndex, false);
} else {
@ -179,18 +235,27 @@ public class NoteEditText extends EditText {
super.onFocusChanged(focused, direction, previouslyFocusedRect);
}
/**
* 创建上下文菜单
* 识别文本中的链接，并提供相应的操作菜单
*/
@Override
protected void onCreateContextMenu(ContextMenu menu) {
// 检查文本是否包含Span（如链接）
if (getText() instanceof Spanned) {
int selStart = getSelectionStart();
int selEnd = getSelectionEnd();
// 获取选中区域的最小和最大位置
int min = Math.min(selStart, selEnd);
int max = Math.max(selStart, selEnd);
// 获取选中区域内的URLSpan
final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
// 如果只有一个链接，则添加上下文菜单
if (urls.length == 1) {
int defaultResId = 0;
// 根据URL协议确定菜单文本资源
for(String schema: sSchemaActionResMap.keySet()) {
if(urls[0].getURL().indexOf(schema) >= 0) {
defaultResId = sSchemaActionResMap.get(schema);
@ -198,14 +263,16 @@ public class NoteEditText extends EditText {
}
}
// 如果未匹配到已知协议，使用"其他链接"
if (defaultResId == 0) {
defaultResId = R.string.note_link_other;
}
// 添加上下文菜单项
menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
new OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
// goto a new intent
// 触发链接点击事件
urls[0].onClick(NoteEditText.this);
return true;
}
@ -214,4 +281,4 @@ public class NoteEditText extends EditText {
}
super.onCreateContextMenu(menu);
}
}
}

164
src/ui/NoteItemData.java
Unescape View File

@ -25,23 +25,29 @@ import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.tool.DataUtils;
/**
* 笔记项数据封装类
* 用于封装从数据库查询得到的笔记数据，提供便捷的数据访问方法
* 在笔记列表等界面中作为数据项使用
*/
public class NoteItemData {
// 数据库查询列投影
static final String [] PROJECTION = new String [] {
NoteColumns.ID,
NoteColumns.ALERTED_DATE,
NoteColumns.BG_COLOR_ID,
NoteColumns.CREATED_DATE,
NoteColumns.HAS_ATTACHMENT,
NoteColumns.MODIFIED_DATE,
NoteColumns.NOTES_COUNT,
NoteColumns.PARENT_ID,
NoteColumns.SNIPPET,
NoteColumns.TYPE,
NoteColumns.WIDGET_ID,
NoteColumns.WIDGET_TYPE,
NoteColumns.ID, // 笔记ID
NoteColumns.ALERTED_DATE, // 提醒时间
NoteColumns.BG_COLOR_ID, // 背景颜色ID
NoteColumns.CREATED_DATE, // 创建时间
NoteColumns.HAS_ATTACHMENT, // 是否有附件
NoteColumns.MODIFIED_DATE, // 修改时间
NoteColumns.NOTES_COUNT, // 笔记数量（针对文件夹）
NoteColumns.PARENT_ID, // 父文件夹ID
NoteColumns.SNIPPET, // 内容摘要
NoteColumns.TYPE, // 类型（笔记/文件夹/系统文件夹）
NoteColumns.WIDGET_ID, // 小部件ID
NoteColumns.WIDGET_TYPE, // 小部件类型
};
// 列索引常量
private static final int ID_COLUMN = 0;
private static final int ALERTED_DATE_COLUMN = 1;
private static final int BG_COLOR_ID_COLUMN = 2;
@ -55,28 +61,36 @@ public class NoteItemData {
private static final int WIDGET_ID_COLUMN = 10;
private static final int WIDGET_TYPE_COLUMN = 11;
private long mId;
private long mAlertDate;
private int mBgColorId;
private long mCreatedDate;
private boolean mHasAttachment;
private long mModifiedDate;
private int mNotesCount;
private long mParentId;
private String mSnippet;
private int mType;
private int mWidgetId;
private int mWidgetType;
private String mName;
private String mPhoneNumber;
private boolean mIsLastItem;
private boolean mIsFirstItem;
private boolean mIsOnlyOneItem;
private boolean mIsOneNoteFollowingFolder;
private boolean mIsMultiNotesFollowingFolder;
// 笔记数据字段
private long mId; // 笔记ID
private long mAlertDate; // 提醒时间
private int mBgColorId; // 背景颜色ID
private long mCreatedDate; // 创建时间
private boolean mHasAttachment; // 是否有附件
private long mModifiedDate; // 修改时间
private int mNotesCount; // 笔记数量（针对文件夹）
private long mParentId; // 父文件夹ID
private String mSnippet; // 内容摘要
private int mType; // 类型
private int mWidgetId; // 小部件ID
private int mWidgetType; // 小部件类型
private String mName; // 联系人姓名（针对通话记录）
private String mPhoneNumber; // 电话号码（针对通话记录）
// 位置信息字段
private boolean mIsLastItem; // 是否是最后一项
private boolean mIsFirstItem; // 是否是第一项
private boolean mIsOnlyOneItem; // 是否是唯一一项
private boolean mIsOneNoteFollowingFolder; // 是否是紧跟在文件夹后的单个笔记
private boolean mIsMultiNotesFollowingFolder;// 是否是紧跟在文件夹后的多个笔记
/**
* 构造函数
* @param context 上下文
* @param cursor 数据库游标
*/
public NoteItemData(Context context, Cursor cursor) {
// 从游标读取数据
mId = cursor.getLong(ID_COLUMN);
mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
@ -86,16 +100,20 @@ public class NoteItemData {
mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN);
mParentId = cursor.getLong(PARENT_ID_COLUMN);
mSnippet = cursor.getString(SNIPPET_COLUMN);
// 移除清单标记
mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace(
NoteEditActivity.TAG_UNCHECKED, "");
mType = cursor.getInt(TYPE_COLUMN);
mWidgetId = cursor.getInt(WIDGET_ID_COLUMN);
mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN);
// 初始化通话记录相关字段
mPhoneNumber = "";
if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
// 获取通话记录的电话号码
mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
if (!TextUtils.isEmpty(mPhoneNumber)) {
// 根据电话号码获取联系人姓名
mName = Contact.getContact(context, mPhoneNumber);
if (mName == null) {
mName = mPhoneNumber;
@ -106,9 +124,14 @@ public class NoteItemData {
if (mName == null) {
mName = "";
}
// 检查位置信息
checkPostion(cursor);
}
/**
* 检查当前项在列表中的位置
* @param cursor 数据库游标
*/
private void checkPostion(Cursor cursor) {
mIsLastItem = cursor.isLast() ? true : false;
mIsFirstItem = cursor.isFirst() ? true : false;
@ -116,17 +139,20 @@ public class NoteItemData {
mIsMultiNotesFollowingFolder = false;
mIsOneNoteFollowingFolder = false;
// 如果是笔记类型且不是第一项，检查前一项是否为文件夹
if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {
int position = cursor.getPosition();
if (cursor.moveToPrevious()) {
if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER
|| cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {
// 判断当前笔记后面是否还有更多笔记
if (cursor.getCount() > (position + 1)) {
mIsMultiNotesFollowingFolder = true;
} else {
mIsOneNoteFollowingFolder = true;
}
}
// 移动回原来的位置
if (!cursor.moveToNext()) {
throw new IllegalStateException("cursor move to previous but can't move back");
}
@ -134,91 +160,159 @@ public class NoteItemData {
}
}
/**
* 检查是否是紧跟在文件夹后的单个笔记
*/
public boolean isOneFollowingFolder() {
return mIsOneNoteFollowingFolder;
}
/**
* 检查是否是紧跟在文件夹后的多个笔记
*/
public boolean isMultiFollowingFolder() {
return mIsMultiNotesFollowingFolder;
}
/**
* 检查是否是列表中的最后一项
*/
public boolean isLast() {
return mIsLastItem;
}
/**
* 获取通话记录的联系人姓名
*/
public String getCallName() {
return mName;
}
/**
* 检查是否是列表中的第一项
*/
public boolean isFirst() {
return mIsFirstItem;
}
/**
* 检查是否是列表中的唯一项
*/
public boolean isSingle() {
return mIsOnlyOneItem;
}
/**
* 获取笔记ID
*/
public long getId() {
return mId;
}
/**
* 获取提醒时间
*/
public long getAlertDate() {
return mAlertDate;
}
/**
* 获取创建时间
*/
public long getCreatedDate() {
return mCreatedDate;
}
/**
* 检查是否有附件
*/
public boolean hasAttachment() {
return mHasAttachment;
}
/**
* 获取修改时间
*/
public long getModifiedDate() {
return mModifiedDate;
}
/**
* 获取背景颜色ID
*/
public int getBgColorId() {
return mBgColorId;
}
/**
* 获取父文件夹ID
*/
public long getParentId() {
return mParentId;
}
/**
* 获取笔记数量（针对文件夹）
*/
public int getNotesCount() {
return mNotesCount;
}
/**
* 获取文件夹ID（与getParentId相同）
*/
public long getFolderId () {
return mParentId;
}
/**
* 获取类型
*/
public int getType() {
return mType;
}
/**
* 获取小部件类型
*/
public int getWidgetType() {
return mWidgetType;
}
/**
* 获取小部件ID
*/
public int getWidgetId() {
return mWidgetId;
}
/**
* 获取内容摘要
*/
public String getSnippet() {
return mSnippet;
}
/**
* 检查是否有提醒
*/
public boolean hasAlert() {
return (mAlertDate > 0);
}
/**
* 检查是否是通话记录
*/
public boolean isCallRecord() {
return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber));
}
/**
* 从游标获取笔记类型
* @param cursor 数据库游标
* @return 笔记类型
*/
public static int getNoteType(Cursor cursor) {
return cursor.getInt(TYPE_COLUMN);
}
}
}

389
src/ui/NotesListActivity.java
Unescape View File

@ -78,71 +78,68 @@ import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashSet;
/**
* 笔记列表活动
* 笔记应用的主界面，显示笔记和文件夹列表，提供笔记的浏览、管理、搜索和设置等功能
* 支持多选操作、文件夹管理、导入导出等高级功能
*/
public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
private static final int FOLDER_LIST_QUERY_TOKEN = 1;
private static final int MENU_FOLDER_DELETE = 0;
private static final int MENU_FOLDER_VIEW = 1;
// 异步查询标记
private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; // 文件夹笔记列表查询标记
private static final int FOLDER_LIST_QUERY_TOKEN = 1; // 文件夹列表查询标记
private static final int MENU_FOLDER_CHANGE_NAME = 2;
// 上下文菜单项ID
private static final int MENU_FOLDER_DELETE = 0; // 删除文件夹
private static final int MENU_FOLDER_VIEW = 1; // 查看文件夹
private static final int MENU_FOLDER_CHANGE_NAME = 2; // 修改文件夹名称
// 首选项键名
private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction";
/**
* 列表编辑状态枚举
*/
private enum ListEditState {
NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER
NOTE_LIST, // 普通笔记列表
SUB_FOLDER, // 子文件夹视图
CALL_RECORD_FOLDER // 通话记录文件夹
};
private ListEditState mState;
private BackgroundQueryHandler mBackgroundQueryHandler;
private NotesListAdapter mNotesListAdapter;
private ListView mNotesListView;
private Button mAddNewNote;
private boolean mDispatch;
private int mOriginY;
private int mDispatchY;
private TextView mTitleBar;
private long mCurrentFolderId;
private ContentResolver mContentResolver;
private ModeCallback mModeCallBack;
private static final String TAG = "NotesListActivity";
public static final int NOTES_LISTVIEW_SCROLL_RATE = 30;
private NoteItemData mFocusNoteDataItem;
private ListEditState mState; // 当前列表状态
private BackgroundQueryHandler mBackgroundQueryHandler; // 后台查询处理器
private NotesListAdapter mNotesListAdapter; // 笔记列表适配器
private ListView mNotesListView; // 笔记列表视图
private Button mAddNewNote; // 新建笔记按钮
private boolean mDispatch; // 是否分发触摸事件标志
private int mOriginY; // 原始Y坐标
private int mDispatchY; // 分发Y坐标
private TextView mTitleBar; // 标题栏
private long mCurrentFolderId; // 当前文件夹ID
private ContentResolver mContentResolver; // 内容解析器
private ModeCallback mModeCallBack; // 多选模式回调
private static final String TAG = "NotesListActivity"; // 日志标签
public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; // 列表滚动速率
private NoteItemData mFocusNoteDataItem; // 当前焦点笔记项数据
// 查询条件
private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?";
private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>"
+ Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR ("
+ NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND "
+ NoteColumns.NOTES_COUNT + ">0)";
private final static int REQUEST_CODE_OPEN_NODE = 102;
private final static int REQUEST_CODE_NEW_NODE = 103;
// 请求码
private final static int REQUEST_CODE_OPEN_NODE = 102; // 打开笔记
private final static int REQUEST_CODE_NEW_NODE = 103; // 新建笔记
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.note_list);
initResources();
setContentView(R.layout.note_list); // 设置列表布局
initResources(); // 初始化资源
/**
* Insert an introduction when user firstly use this application
* 首次使用时插入介绍说明
*/
setAppInfoFromRawRes();
}
@ -151,19 +148,24 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK
&& (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) {
// 笔记操作后刷新列表
mNotesListAdapter.changeCursor(null);
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
/**
* 从资源文件读取应用介绍信息并插入到笔记中
*/
private void setAppInfoFromRawRes() {
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
// 检查是否已经添加过介绍
if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) {
StringBuilder sb = new StringBuilder();
InputStream in = null;
try {
in = getResources().openRawResource(R.raw.introduction);
in = getResources().openRawResource(R.raw.introduction);
if (in != null) {
InputStreamReader isr = new InputStreamReader(in);
BufferedReader br = new BufferedReader(isr);
@ -184,12 +186,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
try {
in.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
// 创建介绍笔记
WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER,
AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE,
ResourceParser.RED);
@ -206,40 +208,49 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
protected void onStart() {
super.onStart();
startAsyncNotesListQuery();
startAsyncNotesListQuery(); // 启动异步笔记列表查询
}
/**
* 初始化资源和视图
*/
private void initResources() {
mContentResolver = this.getContentResolver();
mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver());
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mCurrentFolderId = Notes.ID_ROOT_FOLDER; // 默认根文件夹
mNotesListView = (ListView) findViewById(R.id.notes_list);
// 添加列表脚部视图
mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null),
null, false);
mNotesListView.setOnItemClickListener(new OnListItemClickListener());
mNotesListView.setOnItemLongClickListener(this);
mNotesListAdapter = new NotesListAdapter(this);
mNotesListView.setOnItemClickListener(new OnListItemClickListener()); // 设置列表项点击监听
mNotesListView.setOnItemLongClickListener(this); // 设置列表项长按监听
mNotesListAdapter = new NotesListAdapter(this); // 创建列表适配器
mNotesListView.setAdapter(mNotesListAdapter);
mAddNewNote = (Button) findViewById(R.id.btn_new_note);
mAddNewNote.setOnClickListener(this);
mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener());
mAddNewNote.setOnClickListener(this); // 设置新建笔记按钮点击监听
mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); // 设置新建笔记按钮触摸监听
mDispatch = false;
mDispatchY = 0;
mOriginY = 0;
mTitleBar = (TextView) findViewById(R.id.tv_title_bar);
mState = ListEditState.NOTE_LIST;
mModeCallBack = new ModeCallback();
mState = ListEditState.NOTE_LIST; // 初始状态为普通笔记列表
mModeCallBack = new ModeCallback(); // 创建多选模式回调
}
/**
* 多选模式回调类
* 实现列表的多选操作功能
*/
private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener {
private DropdownMenu mDropDownMenu;
private ActionMode mActionMode;
private MenuItem mMoveMenu;
private DropdownMenu mDropDownMenu; // 下拉菜单
private ActionMode mActionMode; // 操作模式
private MenuItem mMoveMenu; // 移动菜单项
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
getMenuInflater().inflate(R.menu.note_list_options, menu);
menu.findItem(R.id.delete).setOnMenuItemClickListener(this);
mMoveMenu = menu.findItem(R.id.move);
getMenuInflater().inflate(R.menu.note_list_options, menu); // 加载多选菜单
menu.findItem(R.id.delete).setOnMenuItemClickListener(this); // 删除菜单项
mMoveMenu = menu.findItem(R.id.move); // 移动菜单项
// 根据条件设置移动菜单项可见性
if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER
|| DataUtils.getUserFolderCount(mContentResolver) == 0) {
mMoveMenu.setVisible(false);
@ -248,10 +259,11 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
mMoveMenu.setOnMenuItemClickListener(this);
}
mActionMode = mode;
mNotesListAdapter.setChoiceMode(true);
mNotesListView.setLongClickable(false);
mAddNewNote.setVisibility(View.GONE);
mNotesListAdapter.setChoiceMode(true); // 启用选择模式
mNotesListView.setLongClickable(false); // 禁用长按
mAddNewNote.setVisibility(View.GONE); // 隐藏新建笔记按钮
// 设置自定义视图（下拉菜单）
View customView = LayoutInflater.from(NotesListActivity.this).inflate(
R.layout.note_list_dropdown_menu, null);
mode.setCustomView(customView);
@ -260,8 +272,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
R.menu.note_list_dropdown);
mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){
public boolean onMenuItemClick(MenuItem item) {
// 全选/取消全选
mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected());
updateMenu();
updateMenu(); // 更新菜单
return true;
}
@ -269,19 +282,22 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
return true;
}
/**
* 更新菜单状态
*/
private void updateMenu() {
int selectedCount = mNotesListAdapter.getSelectedCount();
// Update dropdown menu
// 更新下拉菜单标题
String format = getResources().getString(R.string.menu_select_title, selectedCount);
mDropDownMenu.setTitle(format);
MenuItem item = mDropDownMenu.findItem(R.id.action_select_all);
if (item != null) {
if (mNotesListAdapter.isAllSelected()) {
item.setChecked(true);
item.setTitle(R.string.menu_deselect_all);
item.setTitle(R.string.menu_deselect_all); // 全选时显示"取消全选"
} else {
item.setChecked(false);
item.setTitle(R.string.menu_select_all);
item.setTitle(R.string.menu_select_all); // 未全选时显示"全选"
}
}
}
@ -297,47 +313,49 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
public void onDestroyActionMode(ActionMode mode) {
mNotesListAdapter.setChoiceMode(false);
mNotesListView.setLongClickable(true);
mAddNewNote.setVisibility(View.VISIBLE);
// 退出多选模式时的清理工作
mNotesListAdapter.setChoiceMode(false); // 禁用选择模式
mNotesListView.setLongClickable(true); // 启用长按
mAddNewNote.setVisibility(View.VISIBLE); // 显示新建笔记按钮
}
public void finishActionMode() {
mActionMode.finish();
mActionMode.finish(); // 结束操作模式
}
public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
boolean checked) {
mNotesListAdapter.setCheckedItem(position, checked);
updateMenu();
boolean checked) {
mNotesListAdapter.setCheckedItem(position, checked); // 设置选中状态
updateMenu(); // 更新菜单
}
public boolean onMenuItemClick(MenuItem item) {
if (mNotesListAdapter.getSelectedCount() == 0) {
Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none),
Toast.LENGTH_SHORT).show();
Toast.LENGTH_SHORT).show(); // 未选择任何项时提示
return true;
}
switch (item.getItemId()) {
case R.id.delete:
// 批量删除确认对话框
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(getString(R.string.alert_title_delete));
builder.setIcon(android.R.drawable.ic_dialog_alert);
builder.setMessage(getString(R.string.alert_message_delete_notes,
mNotesListAdapter.getSelectedCount()));
mNotesListAdapter.getSelectedCount()));
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
batchDelete();
}
});
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
batchDelete(); // 执行批量删除
}
});
builder.setNegativeButton(android.R.string.cancel, null);
builder.show();
break;
case R.id.move:
startQueryDestinationFolders();
startQueryDestinationFolders(); // 查询目标文件夹
break;
default:
return false;
@ -346,6 +364,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
}
/**
* 新建笔记按钮的触摸监听器
* 处理透明区域的事件分发
*/
private class NewNoteOnTouchListener implements OnTouchListener {
public boolean onTouch(View v, MotionEvent event) {
@ -357,20 +379,19 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
int start = screenHeight - newNoteViewHeight;
int eventY = start + (int) event.getY();
/**
* Minus TitleBar's height
* 减去标题栏的高度
*/
if (mState == ListEditState.SUB_FOLDER) {
eventY -= mTitleBar.getHeight();
start -= mTitleBar.getHeight();
}
/**
* HACKME:When click the transparent part of "New Note" button, dispatch
* the event to the list view behind this button. The transparent part of
* "New Note" button could be expressed by formula y=-0.12x+94（Unit:pixel）
* and the line top of the button. The coordinate based on left of the "New
* Note" button. The 94 represents maximum height of the transparent part.
* Notice that, if the background of the button changes, the formula should
* also change. This is very bad, just for the UI designer's strong requirement.
* HACKME:当点击"新建笔记"按钮的透明部分时，将事件分发给列表视图。
* 透明部分的公式为 y=-0.12x+94（单位：像素）和按钮的顶部线条。
* 坐标基于"新建笔记"按钮的左侧。
* 94表示透明部分的最大高度。
* 注意：如果按钮背景改变，公式也应改变。
* 这只是为了满足UI设计师的强烈要求。
*/
if (event.getY() < (event.getX() * (-0.12) + 94)) {
View view = mNotesListView.getChildAt(mNotesListView.getChildCount() - 1
@ -381,7 +402,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
mDispatchY = eventY;
event.setLocation(event.getX(), mDispatchY);
mDispatch = true;
return mNotesListView.dispatchTouchEvent(event);
return mNotesListView.dispatchTouchEvent(event); // 分发触摸事件
}
}
break;
@ -408,15 +429,21 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
};
/**
* 启动异步笔记列表查询
*/
private void startAsyncNotesListQuery() {
String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
: NORMAL_SELECTION;
: NORMAL_SELECTION; // 根据当前文件夹选择查询条件
mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] {
String.valueOf(mCurrentFolderId)
String.valueOf(mCurrentFolderId)
}, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
}
/**
* 后台查询处理器
*/
private final class BackgroundQueryHandler extends AsyncQueryHandler {
public BackgroundQueryHandler(ContentResolver contentResolver) {
super(contentResolver);
@ -426,11 +453,11 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
switch (token) {
case FOLDER_NOTE_LIST_QUERY_TOKEN:
mNotesListAdapter.changeCursor(cursor);
mNotesListAdapter.changeCursor(cursor); // 更新笔记列表适配器
break;
case FOLDER_LIST_QUERY_TOKEN:
if (cursor != null && cursor.getCount() > 0) {
showFolderListMenu(cursor);
showFolderListMenu(cursor); // 显示文件夹列表菜单
} else {
Log.e(TAG, "Query folder failed");
}
@ -441,6 +468,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
}
/**
* 显示文件夹列表菜单（用于移动笔记）
*/
private void showFolderListMenu(Cursor cursor) {
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(R.string.menu_title_select_folder);
@ -455,13 +485,16 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
getString(R.string.format_move_notes_to_folder,
mNotesListAdapter.getSelectedCount(),
adapter.getFolderName(NotesListActivity.this, which)),
Toast.LENGTH_SHORT).show();
mModeCallBack.finishActionMode();
Toast.LENGTH_SHORT).show(); // 显示移动成功提示
mModeCallBack.finishActionMode(); // 结束多选模式
}
});
builder.show();
}
/**
* 创建新笔记
*/
private void createNewNote() {
Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
@ -469,20 +502,22 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE);
}
/**
* 批量删除笔记
*/
private void batchDelete() {
new AsyncTask<Void, Void, HashSet<AppWidgetAttribute>>() {
protected HashSet<AppWidgetAttribute> doInBackground(Void... unused) {
HashSet<AppWidgetAttribute> widgets = mNotesListAdapter.getSelectedWidget();
if (!isSyncMode()) {
// if not synced, delete notes directly
// 非同步模式下，直接删除笔记
if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter
.getSelectedItemIds())) {
} else {
Log.e(TAG, "Delete notes error, should not happens");
}
} else {
// in sync mode, we'll move the deleted note into the trash
// folder
// 同步模式下，将删除的笔记移动到垃圾箱文件夹
if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter
.getSelectedItemIds(), Notes.ID_TRASH_FOLER)) {
Log.e(TAG, "Move notes to trash folder error, should not happens");
@ -497,15 +532,18 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
for (AppWidgetAttribute widget : widgets) {
if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) {
updateWidget(widget.widgetId, widget.widgetType);
updateWidget(widget.widgetId, widget.widgetType); // 更新小部件
}
}
}
mModeCallBack.finishActionMode();
mModeCallBack.finishActionMode(); // 结束多选模式
}
}.execute();
}
/**
* 删除文件夹
*/
private void deleteFolder(long folderId) {
if (folderId == Notes.ID_ROOT_FOLDER) {
Log.e(TAG, "Wrong folder id, should not happen " + folderId);
@ -517,22 +555,25 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
HashSet<AppWidgetAttribute> widgets = DataUtils.getFolderNoteWidget(mContentResolver,
folderId);
if (!isSyncMode()) {
// if not synced, delete folder directly
// 非同步模式下，直接删除文件夹
DataUtils.batchDeleteNotes(mContentResolver, ids);
} else {
// in sync mode, we'll move the deleted folder into the trash folder
// 同步模式下，将删除的文件夹移动到垃圾箱文件夹
DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER);
}
if (widgets != null) {
for (AppWidgetAttribute widget : widgets) {
if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID
&& widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) {
updateWidget(widget.widgetId, widget.widgetType);
updateWidget(widget.widgetId, widget.widgetType); // 更新小部件
}
}
}
}
/**
* 打开笔记（进入编辑界面）
*/
private void openNode(NoteItemData data) {
Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_VIEW);
@ -540,33 +581,39 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE);
}
/**
* 打开文件夹（进入文件夹视图）
*/
private void openFolder(NoteItemData data) {
mCurrentFolderId = data.getId();
startAsyncNotesListQuery();
startAsyncNotesListQuery(); // 查询文件夹内容
if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
mState = ListEditState.CALL_RECORD_FOLDER;
mAddNewNote.setVisibility(View.GONE);
mAddNewNote.setVisibility(View.GONE); // 通话记录文件夹不允许新建笔记
} else {
mState = ListEditState.SUB_FOLDER;
}
if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
mTitleBar.setText(R.string.call_record_folder_name);
} else {
mTitleBar.setText(data.getSnippet());
mTitleBar.setText(data.getSnippet()); // 显示文件夹名称
}
mTitleBar.setVisibility(View.VISIBLE);
mTitleBar.setVisibility(View.VISIBLE); // 显示标题栏
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_new_note:
createNewNote();
createNewNote(); // 创建新笔记
break;
default:
break;
}
}
/**
* 显示软键盘
*/
private void showSoftInput() {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
if (inputMethodManager != null) {
@ -574,17 +621,24 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
}
/**
* 隐藏软键盘
*/
private void hideSoftInput(View view) {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
/**
* 显示创建或修改文件夹对话框
*/
private void showCreateOrModifyFolderDialog(final boolean create) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null);
final EditText etName = (EditText) view.findViewById(R.id.et_foler_name);
showSoftInput();
showSoftInput(); // 显示软键盘
if (!create) {
// 修改文件夹名称
if (mFocusNoteDataItem != null) {
etName.setText(mFocusNoteDataItem.getSnippet());
builder.setTitle(getString(R.string.menu_folder_change_name));
@ -593,6 +647,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
return;
}
} else {
// 创建新文件夹
etName.setText("");
builder.setTitle(this.getString(R.string.menu_create_folder));
}
@ -600,7 +655,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
builder.setPositiveButton(android.R.string.ok, null);
builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
hideSoftInput(etName);
hideSoftInput(etName); // 隐藏软键盘
}
});
@ -610,13 +665,15 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
public void onClick(View v) {
hideSoftInput(etName);
String name = etName.getText().toString();
// 检查文件夹名称是否已存在
if (DataUtils.checkVisibleFolderName(mContentResolver, name)) {
Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name),
Toast.LENGTH_LONG).show();
etName.setSelection(0, etName.length());
etName.setSelection(0, etName.length()); // 选中所有文本
return;
}
if (!create) {
// 修改文件夹名称
if (!TextUtils.isEmpty(name)) {
ContentValues values = new ContentValues();
values.put(NoteColumns.SNIPPET, name);
@ -624,10 +681,11 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
values.put(NoteColumns.LOCAL_MODIFIED, 1);
mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID
+ "=?", new String[] {
String.valueOf(mFocusNoteDataItem.getId())
String.valueOf(mFocusNoteDataItem.getId())
});
}
} else if (!TextUtils.isEmpty(name)) {
// 创建新文件夹
ContentValues values = new ContentValues();
values.put(NoteColumns.SNIPPET, name);
values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER);
@ -637,11 +695,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
});
// 初始时如果名称为空，禁用确定按钮
if (TextUtils.isEmpty(etName.getText())) {
positive.setEnabled(false);
}
/**
* When the name edit text is null, disable the positive button
* 当名称编辑框为空时，禁用确定按钮
*/
etName.addTextChangedListener(new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
@ -650,6 +709,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
// 根据输入内容启用/禁用确定按钮
if (TextUtils.isEmpty(etName.getText())) {
positive.setEnabled(false);
} else {
@ -668,28 +728,34 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
public void onBackPressed() {
switch (mState) {
case SUB_FOLDER:
// 返回根文件夹列表
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mState = ListEditState.NOTE_LIST;
startAsyncNotesListQuery();
mTitleBar.setVisibility(View.GONE);
mTitleBar.setVisibility(View.GONE); // 隐藏标题栏
break;
case CALL_RECORD_FOLDER:
// 返回根文件夹列表
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mState = ListEditState.NOTE_LIST;
mAddNewNote.setVisibility(View.VISIBLE);
mAddNewNote.setVisibility(View.VISIBLE); // 显示新建笔记按钮
mTitleBar.setVisibility(View.GONE);
startAsyncNotesListQuery();
break;
case NOTE_LIST:
super.onBackPressed();
super.onBackPressed(); // 退出应用
break;
default:
break;
}
}
/**
* 更新小部件
*/
private void updateWidget(int appWidgetId, int appWidgetType) {
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
// 根据小部件类型设置目标类
if (appWidgetType == Notes.TYPE_WIDGET_2X) {
intent.setClass(this, NoteWidgetProvider_2x.class);
} else if (appWidgetType == Notes.TYPE_WIDGET_4X) {
@ -700,20 +766,23 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {
appWidgetId
appWidgetId
});
sendBroadcast(intent);
setResult(RESULT_OK, intent);
}
/**
* 文件夹上下文菜单创建监听器
*/
private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() {
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
if (mFocusNoteDataItem != null) {
menu.setHeaderTitle(mFocusNoteDataItem.getSnippet());
menu.add(0, MENU_FOLDER_VIEW, 0, R.string.menu_folder_view);
menu.add(0, MENU_FOLDER_DELETE, 0, R.string.menu_folder_delete);
menu.add(0, MENU_FOLDER_CHANGE_NAME, 0, R.string.menu_folder_change_name);
menu.setHeaderTitle(mFocusNoteDataItem.getSnippet()); // 设置菜单标题为文件夹名称
menu.add(0, MENU_FOLDER_VIEW, 0, R.string.menu_folder_view); // 查看文件夹
menu.add(0, MENU_FOLDER_DELETE, 0, R.string.menu_folder_delete); // 删除文件夹
menu.add(0, MENU_FOLDER_CHANGE_NAME, 0, R.string.menu_folder_change_name); // 修改文件夹名称
}
}
};
@ -721,7 +790,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
public void onContextMenuClosed(Menu menu) {
if (mNotesListView != null) {
mNotesListView.setOnCreateContextMenuListener(null);
mNotesListView.setOnCreateContextMenuListener(null); // 清除上下文菜单监听器
}
super.onContextMenuClosed(menu);
}
@ -734,9 +803,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
switch (item.getItemId()) {
case MENU_FOLDER_VIEW:
openFolder(mFocusNoteDataItem);
openFolder(mFocusNoteDataItem); // 打开文件夹
break;
case MENU_FOLDER_DELETE:
// 删除文件夹确认对话框
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(getString(R.string.alert_title_delete));
builder.setIcon(android.R.drawable.ic_dialog_alert);
@ -744,14 +814,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
deleteFolder(mFocusNoteDataItem.getId());
deleteFolder(mFocusNoteDataItem.getId()); // 执行删除
}
});
builder.setNegativeButton(android.R.string.cancel, null);
builder.show();
break;
case MENU_FOLDER_CHANGE_NAME:
showCreateOrModifyFolderDialog(false);
showCreateOrModifyFolderDialog(false); // 修改文件夹名称
break;
default:
break;
@ -762,10 +832,11 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
menu.clear();
menu.clear(); // 清空菜单
// 根据当前状态加载不同菜单
if (mState == ListEditState.NOTE_LIST) {
getMenuInflater().inflate(R.menu.note_list, menu);
// set sync or sync_cancel
// 根据同步状态设置菜单项标题
menu.findItem(R.id.menu_sync).setTitle(
GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync);
} else if (mState == ListEditState.SUB_FOLDER) {
@ -782,35 +853,36 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_new_folder: {
showCreateOrModifyFolderDialog(true);
showCreateOrModifyFolderDialog(true); // 创建新文件夹
break;
}
case R.id.menu_export_text: {
exportNoteToText();
exportNoteToText(); // 导出笔记为文本
break;
}
case R.id.menu_sync: {
if (isSyncMode()) {
// 同步模式下，启动或取消同步
if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) {
GTaskSyncService.startSync(this);
GTaskSyncService.startSync(this); // 开始同步
} else {
GTaskSyncService.cancelSync(this);
GTaskSyncService.cancelSync(this); // 取消同步
}
} else {
startPreferenceActivity();
startPreferenceActivity(); // 非同步模式下打开设置页面
}
break;
}
case R.id.menu_setting: {
startPreferenceActivity();
startPreferenceActivity(); // 打开设置页面
break;
}
case R.id.menu_new_note: {
createNewNote();
createNewNote(); // 新建笔记
break;
}
case R.id.menu_search:
onSearchRequested();
onSearchRequested(); // 触发搜索
break;
default:
break;
@ -820,21 +892,25 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
public boolean onSearchRequested() {
startSearch(null, false, null /* appData */, false);
startSearch(null, false, null /* appData */, false); // 启动搜索
return true;
}
/**
* 将笔记导出为文本文件
*/
private void exportNoteToText() {
final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this);
new AsyncTask<Void, Void, Integer>() {
@Override
protected Integer doInBackground(Void... unused) {
return backup.exportToText();
return backup.exportToText(); // 执行导出
}
@Override
protected void onPostExecute(Integer result) {
// 根据导出结果显示相应对话框
if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) {
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(NotesListActivity.this
@ -866,22 +942,32 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}.execute();
}
/**
* 检查是否处于同步模式
*/
private boolean isSyncMode() {
return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
}
/**
* 启动设置页面
*/
private void startPreferenceActivity() {
Activity from = getParent() != null ? getParent() : this;
Intent intent = new Intent(from, NotesPreferenceActivity.class);
from.startActivityIfNeeded(intent, -1);
}
/**
* 列表项点击监听器
*/
private class OnListItemClickListener implements OnItemClickListener {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (view instanceof NotesListItem) {
NoteItemData item = ((NotesListItem) view).getItemData();
if (mNotesListAdapter.isInChoiceMode()) {
// 多选模式下，处理笔记选择
if (item.getType() == Notes.TYPE_NOTE) {
position = position - mNotesListView.getHeaderViewsCount();
mModeCallBack.onItemCheckedStateChanged(null, position, id,
@ -890,13 +976,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
return;
}
// 根据当前状态处理点击事件
switch (mState) {
case NOTE_LIST:
if (item.getType() == Notes.TYPE_FOLDER
|| item.getType() == Notes.TYPE_SYSTEM) {
openFolder(item);
openFolder(item); // 打开文件夹
} else if (item.getType() == Notes.TYPE_NOTE) {
openNode(item);
openNode(item); // 打开笔记
} else {
Log.e(TAG, "Wrong note type in NOTE_LIST");
}
@ -904,7 +991,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
case SUB_FOLDER:
case CALL_RECORD_FOLDER:
if (item.getType() == Notes.TYPE_NOTE) {
openNode(item);
openNode(item); // 打开笔记
} else {
Log.e(TAG, "Wrong note type in SUB_FOLDER");
}
@ -917,10 +1004,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
/**
* 查询目标文件夹（用于移动笔记）
*/
private void startQueryDestinationFolders() {
String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?";
// 根据当前状态调整查询条件
selection = (mState == ListEditState.NOTE_LIST) ? selection:
"(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")";
"(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")";
mBackgroundQueryHandler.startQuery(FOLDER_LIST_QUERY_TOKEN,
null,
@ -939,16 +1030,18 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
if (view instanceof NotesListItem) {
mFocusNoteDataItem = ((NotesListItem) view).getItemData();
if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) {
// 长按笔记项进入多选模式
if (mNotesListView.startActionMode(mModeCallBack) != null) {
mModeCallBack.onItemCheckedStateChanged(null, position, id, true);
mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); // 触觉反馈
} else {
Log.e(TAG, "startActionMode fails");
}
} else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) {
// 长按文件夹项显示上下文菜单
mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener);
}
}
return false;
}
}
}

151
src/ui/NotesListAdapter.java
Unescape View File

@ -1,17 +1,15 @@
/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
* 版权所有 (c) 2010-2011，The MiCode 开源社区 (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
* 根据 Apache 许可证 2.0 版本（"许可证"）授权；
* 除非遵守许可证，否则不得使用此文件。
* 您可以在以下网址获取许可证副本：
*
* 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.
* 除非适用法律要求或书面同意，否则按"原样"分发软件，
* 没有任何明示或暗示的担保或条件。
* 有关许可证下权限和限制的具体语言，请参阅许可证。
*/
package net.micode.notes.ui;
@ -30,58 +28,103 @@ import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
/**
* 笔记列表适配器，继承自 CursorAdapter
* 用于将数据库中的笔记数据绑定到 ListView 等列表视图
*/
public class NotesListAdapter extends CursorAdapter {
private static final String TAG = "NotesListAdapter";
private Context mContext;
private HashMap<Integer, Boolean> mSelectedIndex;
private int mNotesCount;
private boolean mChoiceMode;
private static final String TAG = "NotesListAdapter"; // 日志标签
private Context mContext; // 上下文对象
private HashMap<Integer, Boolean> mSelectedIndex; // 存储选中状态的映射表，key为位置，value为是否选中
private int mNotesCount; // 笔记总数（只包括普通笔记类型）
private boolean mChoiceMode; // 是否处于选择模式
/**
* 应用小部件属性类
* 用于存储小部件的ID和类型信息
*/
public static class AppWidgetAttribute {
public int widgetId;
public int widgetType;
public int widgetId; // 小部件ID
public int widgetType; // 小部件类型
};
/**
* 构造函数
* @param context 上下文
*/
public NotesListAdapter(Context context) {
super(context, null);
mSelectedIndex = new HashMap<Integer, Boolean>();
super(context, null); // 初始时Cursor为null
mSelectedIndex = new HashMap<Integer, Boolean>(); // 初始化选中状态映射表
mContext = context;
mNotesCount = 0;
}
/**
* 创建新的列表项视图
* @param context 上下文
* @param cursor 数据游标
* @param parent 父视图
* @return 新的 NotesListItem 视图
*/
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return new NotesListItem(context);
return new NotesListItem(context); // 创建新的笔记列表项
}
/**
* 绑定数据到视图
* @param view 要绑定的视图
* @param context 上下文
* @param cursor 数据游标
*/
@Override
public void bindView(View view, Context context, Cursor cursor) {
if (view instanceof NotesListItem) {
// 创建 NoteItemData 对象来包装游标数据
NoteItemData itemData = new NoteItemData(context, cursor);
// 绑定数据到 NotesListItem 视图
((NotesListItem) view).bind(context, itemData, mChoiceMode,
isSelectedItem(cursor.getPosition()));
}
}
/**
* 设置指定位置项目的选中状态
* @param position 项目位置
* @param checked 是否选中
*/
public void setCheckedItem(final int position, final boolean checked) {
mSelectedIndex.put(position, checked);
notifyDataSetChanged();
mSelectedIndex.put(position, checked); // 更新选中状态
notifyDataSetChanged(); // 通知数据变化，刷新视图
}
/**
* 判断是否处于选择模式
* @return 是否处于选择模式
*/
public boolean isInChoiceMode() {
return mChoiceMode;
}
/**
* 设置选择模式
* @param mode 是否启用选择模式
*/
public void setChoiceMode(boolean mode) {
mSelectedIndex.clear();
mSelectedIndex.clear(); // 清除之前的选中状态
mChoiceMode = mode;
}
/**
* 全选或取消全选
* @param checked true为全选，false为取消全选
*/
public void selectAll(boolean checked) {
Cursor cursor = getCursor();
// 遍历所有项目
for (int i = 0; i < getCount(); i++) {
if (cursor.moveToPosition(i)) {
// 只选择普通笔记类型（不包括文件夹等）
if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) {
setCheckedItem(i, checked);
}
@ -89,15 +132,19 @@ public class NotesListAdapter extends CursorAdapter {
}
}
/**
* 获取所有选中项目的ID集合
* @return 选中项目的ID集合
*/
public HashSet<Long> getSelectedItemIds() {
HashSet<Long> itemSet = new HashSet<Long>();
for (Integer position : mSelectedIndex.keySet()) {
if (mSelectedIndex.get(position) == true) {
Long id = getItemId(position);
Long id = getItemId(position); // 获取项目ID
if (id == Notes.ID_ROOT_FOLDER) {
Log.d(TAG, "Wrong item id, should not happen");
Log.d(TAG, "错误的项目ID，不应该发生");
} else {
itemSet.add(id);
itemSet.add(id); // 添加到集合
}
}
}
@ -105,6 +152,10 @@ public class NotesListAdapter extends CursorAdapter {
return itemSet;
}
/**
* 获取所有选中的小部件属性集合
* @return 小部件属性集合，如果发生错误则返回null
*/
public HashSet<AppWidgetAttribute> getSelectedWidget() {
HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
for (Integer position : mSelectedIndex.keySet()) {
@ -113,14 +164,14 @@ public class NotesListAdapter extends CursorAdapter {
if (c != null) {
AppWidgetAttribute widget = new AppWidgetAttribute();
NoteItemData item = new NoteItemData(mContext, c);
widget.widgetId = item.getWidgetId();
widget.widgetType = item.getWidgetType();
widget.widgetId = item.getWidgetId(); // 获取小部件ID
widget.widgetType = item.getWidgetType();// 获取小部件类型
itemSet.add(widget);
/**
* Don't close cursor here, only the adapter could close it
* 不要在此处关闭游标，只有适配器可以关闭它
*/
} else {
Log.e(TAG, "Invalid cursor");
Log.e(TAG, "无效的游标");
return null;
}
}
@ -128,6 +179,10 @@ public class NotesListAdapter extends CursorAdapter {
return itemSet;
}
/**
* 获取选中项目的数量
* @return 选中项目的数量
*/
public int getSelectedCount() {
Collection<Boolean> values = mSelectedIndex.values();
if (null == values) {
@ -137,48 +192,68 @@ public class NotesListAdapter extends CursorAdapter {
int count = 0;
while (iter.hasNext()) {
if (true == iter.next()) {
count++;
count++; // 统计选中项目
}
}
return count;
}
/**
* 判断是否所有项目都被选中
* @return true表示全选，false表示未全选
*/
public boolean isAllSelected() {
int checkedCount = getSelectedCount();
return (checkedCount != 0 && checkedCount == mNotesCount);
int checkedCount = getSelectedCount(); // 获取选中数量
return (checkedCount != 0 && checkedCount == mNotesCount); // 比较选中数量和笔记总数
}
/**
* 判断指定位置的项目是否被选中
* @param position 项目位置
* @return 是否选中
*/
public boolean isSelectedItem(final int position) {
if (null == mSelectedIndex.get(position)) {
return false;
return false; // 如果映射表中不存在该位置，返回false
}
return mSelectedIndex.get(position);
}
/**
* 当内容发生变化时调用
*/
@Override
protected void onContentChanged() {
super.onContentChanged();
calcNotesCount();
calcNotesCount(); // 重新计算笔记数量
}
/**
* 更换数据游标
* @param cursor 新的数据游标
*/
@Override
public void changeCursor(Cursor cursor) {
super.changeCursor(cursor);
calcNotesCount();
calcNotesCount(); // 重新计算笔记数量
}
/**
* 计算笔记总数（只包括普通笔记类型）
*/
private void calcNotesCount() {
mNotesCount = 0;
for (int i = 0; i < getCount(); i++) {
Cursor c = (Cursor) getItem(i);
if (c != null) {
// 只统计普通笔记类型
if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) {
mNotesCount++;
}
} else {
Log.e(TAG, "Invalid cursor");
Log.e(TAG, "无效的游标");
return;
}
}
}
}
}
Write Preview
Loading…
Cancel
Save