develop
lyt 2 years ago
parent 6c6328e346
commit 1374eb0388

@ -41,10 +41,10 @@ import java.io.IOException;
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; // 提醒记录的ID
private String mSnippet; // 提醒记录的摘要
private static final int SNIPPET_PREW_MAX_LEN = 60; // 摘要预览的最大长度
MediaPlayer mPlayer; // 媒体播放器
@Override
protected void onCreate(Bundle savedInstanceState) {
@ -64,20 +64,20 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
Intent intent = getIntent();
try {
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1));
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId);
mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); // 从Intent中获取提醒记录的ID
mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); // 根据ID从数据库中获取提醒记录的摘要
mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0,
SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info)
: mSnippet;
: mSnippet; // 如果摘要超过预设的最大长度,则截断并添加附加信息
} catch (IllegalArgumentException e) {
e.printStackTrace();
return;
}
mPlayer = new MediaPlayer();
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) {
showActionDialog();
playAlarmSound();
mPlayer = new MediaPlayer(); // 创建媒体播放器实例
if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { // 检查提醒记录是否在数据库中可见
showActionDialog(); // 显示操作对话框
playAlarmSound(); // 播放闹钟声音
} else {
finish();
}
@ -85,25 +85,25 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
private boolean isScreenOn() {
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
return pm.isScreenOn();
return pm.isScreenOn(); // 检查屏幕是否亮起
}
private void playAlarmSound() {
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM);
Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); // 获取闹钟铃声的URI
int silentModeStreams = Settings.System.getInt(getContentResolver(),
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0);
Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); // 获取受静音模式影响的音频流
if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) {
mPlayer.setAudioStreamType(silentModeStreams);
mPlayer.setAudioStreamType(silentModeStreams); // 设置媒体播放器的音频流类型
} else {
mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM);
}
try {
mPlayer.setDataSource(this, url);
mPlayer.prepare();
mPlayer.setLooping(true);
mPlayer.start();
mPlayer.setDataSource(this, url); // 设置媒体播放器的数据源
mPlayer.prepare(); // 准备媒体播放器
mPlayer.setLooping(true); // 设置循环播放
mPlayer.start(); // 开始播放
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
@ -122,12 +122,12 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
private void showActionDialog() {
AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setTitle(R.string.app_name);
dialog.setMessage(mSnippet);
dialog.setPositiveButton(R.string.notealert_ok, this);
dialog.setMessage(mSnippet); // 设置对话框的消息内容为提醒记录的摘要
dialog.setPositiveButton(R.string.notealert_ok, this); // 设置对话框的确定按钮
if (isScreenOn()) {
dialog.setNegativeButton(R.string.notealert_enter, this);
dialog.setNegativeButton(R.string.notealert_enter, this); // 设置对话框的取消按钮
}
dialog.show().setOnDismissListener(this);
dialog.show().setOnDismissListener(this); // 显示对话框,并设置对话框的消失监听器
}
public void onClick(DialogInterface dialog, int which) {
@ -136,7 +136,7 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_VIEW);
intent.putExtra(Intent.EXTRA_UID, mNoteId);
startActivity(intent);
startActivity(intent); // 启动编辑提醒记录的界面
break;
default:
break;
@ -144,15 +144,16 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD
}
public void onDismiss(DialogInterface dialog) {
stopAlarmSound();
finish();
stopAlarmSound(); // 停止闹钟声音
finish(); // 结束当前Activity
}
private void stopAlarmSound() {
if (mPlayer != null) {
mPlayer.stop();
mPlayer.release();
mPlayer.stop(); // 停止播放
mPlayer.release(); // 释放资源
mPlayer = null;
}
}
}

@ -31,8 +31,8 @@ import net.micode.notes.data.Notes.NoteColumns;
public class AlarmInitReceiver extends BroadcastReceiver {
private static final String [] PROJECTION = new String [] {
NoteColumns.ID,
NoteColumns.ALERTED_DATE
NoteColumns.ID, // 提醒记录的ID
NoteColumns.ALERTED_DATE // 提醒时间
};
private static final int COLUMN_ID = 0;
@ -40,7 +40,9 @@ public class AlarmInitReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
long currentDate = System.currentTimeMillis();
long currentDate = System.currentTimeMillis(); // 获取当前时间
// 查询数据库,获取需要提醒的记录
Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI,
PROJECTION,
NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE,
@ -50,16 +52,16 @@ public class AlarmInitReceiver extends BroadcastReceiver {
if (c != null) {
if (c.moveToFirst()) {
do {
long alertDate = c.getLong(COLUMN_ALERTED_DATE);
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);
AlarmManager alermManager = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent);
long alertDate = c.getLong(COLUMN_ALERTED_DATE); // 获取提醒时间
Intent sender = new Intent(context, AlarmReceiver.class); // 创建Intent对象用于触发AlarmReceiver类
sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); // 设置Intent的数据以便在AlarmReceiver类中获取相应的提醒记录
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); // 创建待定的广播Intent
AlarmManager alermManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); // 获取AlarmManager实例
alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); // 设置闹钟提醒
} while (c.moveToNext());
}
c.close();
}
}
}

@ -23,8 +23,8 @@ import android.content.Intent;
public class AlarmReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
intent.setClass(context, AlarmAlertActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
intent.setClass(context, AlarmAlertActivity.class);//设置要启动的Activity类
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//addFlags()方法用于添加启动标志
context.startActivity(intent);//用于启动Activity
}
}

@ -30,55 +30,82 @@ import android.widget.NumberPicker;
public class DateTimePicker extends FrameLayout {
// 默认启用状态
private static final boolean DEFAULT_ENABLE_STATE = true;
// 一天中的小时数
private static final int HOURS_IN_HALF_DAY = 12;
private static final int HOURS_IN_ALL_DAY = 24;
// 一周中的天数
private static final int DAYS_IN_ALL_WEEK = 7;
// 日期选择器的最小和最大值
private static final int DATE_SPINNER_MIN_VAL = 0;
private static final int DATE_SPINNER_MAX_VAL = DAYS_IN_ALL_WEEK - 1;
// 24小时制小时选择器的最小和最大值
private static final int HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW = 0;
private static final int HOUR_SPINNER_MAX_VAL_24_HOUR_VIEW = 23;
// 12小时制小时选择器的最小和最大值
private static final int HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW = 1;
private static final int HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW = 12;
// 分钟选择器的最小和最大值
private static final int MINUT_SPINNER_MIN_VAL = 0;
private static final int MINUT_SPINNER_MAX_VAL = 59;
// 上午/下午选择器的最小和最大值
private static final int AMPM_SPINNER_MIN_VAL = 0;
private static final int AMPM_SPINNER_MAX_VAL = 1;
// 日期选择器、小时选择器、分钟选择器和上午/下午选择器
private final NumberPicker mDateSpinner;
private final NumberPicker mHourSpinner;
private final NumberPicker mMinuteSpinner;
private final NumberPicker mAmPmSpinner;
// 当前日期
private Calendar mDate;
// 显示的日期值
private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK];
// 是否为上午
private boolean mIsAm;
// 是否为24小时制
private boolean mIs24HourView;
// 是否启用控件
private boolean mIsEnabled = DEFAULT_ENABLE_STATE;
// 是否正在初始化
private boolean mInitialising;
// 日期时间变化监听器
private OnDateTimeChangedListener mOnDateTimeChangedListener;
// 日期选择器值改变监听器
private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
// 根据新旧值的差值更新日期
mDate.add(Calendar.DAY_OF_YEAR, newVal - oldVal);
updateDateControl();
onDateTimeChanged();
}
};
// 小时选择器值改变监听器
private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
boolean isDateChanged = false;
Calendar cal = Calendar.getInstance();
if (!mIs24HourView) {
// 处理12小时制的上午/下午切换
if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) {
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1);
@ -88,12 +115,14 @@ public class DateTimePicker extends FrameLayout {
cal.add(Calendar.DAY_OF_YEAR, -1);
isDateChanged = true;
}
// 处理上午/下午切换
if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY ||
oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) {
mIsAm = !mIsAm;
updateAmPmControl();
}
} else {
// 处理24小时制的日期切换
if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) {
cal.setTimeInMillis(mDate.getTimeInMillis());
cal.add(Calendar.DAY_OF_YEAR, 1);
@ -104,6 +133,7 @@ public class DateTimePicker extends FrameLayout {
isDateChanged = true;
}
}
// 更新小时
int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY);
mDate.set(Calendar.HOUR_OF_DAY, newHour);
onDateTimeChanged();
@ -115,12 +145,14 @@ public class DateTimePicker extends FrameLayout {
}
};
// 分钟选择器值改变监听器
private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
int minValue = mMinuteSpinner.getMinValue();
int maxValue = mMinuteSpinner.getMaxValue();
int offset = 0;
// 处理分钟的进位和借位
if (oldVal == maxValue && newVal == minValue) {
offset += 1;
} else if (oldVal == minValue && newVal == maxValue) {
@ -144,9 +176,11 @@ public class DateTimePicker extends FrameLayout {
}
};
// 上午/下午选择器值改变监听器
private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() {
@Override
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
// 切换上午/下午
mIsAm = !mIsAm;
if (mIsAm) {
mDate.add(Calendar.HOUR_OF_DAY, -HOURS_IN_HALF_DAY);
@ -158,11 +192,13 @@ public class DateTimePicker extends FrameLayout {
}
};
// 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);
}
// 构造函数
public DateTimePicker(Context context) {
this(context, System.currentTimeMillis());
}
@ -178,19 +214,24 @@ public class DateTimePicker extends FrameLayout {
mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY;
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.setOnValueChangedListener(mOnMinuteChangedListener);
// 初始化上午/下午选择器
String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings();
mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm);
mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL);
@ -198,22 +239,24 @@ public class DateTimePicker extends FrameLayout {
mAmPmSpinner.setDisplayedValues(stringsForAmPm);
mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener);
// update controls to initial state
// 更新控件的初始状态
updateDateControl();
updateHourControl();
updateAmPmControl();
// 设置是否为24小时制
set24HourView(is24HourView);
// set to current time
// 设置当前时间
setCurrentDate(date);
// 设置是否启用控件
setEnabled(isEnabled());
// set the content descriptions
mInitialising = false;
}
// 设置控件是否启用
@Override
public void setEnabled(boolean enabled) {
if (mIsEnabled == enabled) {
@ -226,6 +269,7 @@ public class DateTimePicker extends FrameLayout {
mAmPmSpinner.setEnabled(enabled);
mIsEnabled = enabled;
}
}
@Override
public boolean isEnabled() {

@ -31,10 +31,10 @@ import android.text.format.DateUtils;
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(); // 日历对象,用于存储日期和时间
private boolean mIs24HourView; // 是否使用24小时制
private OnDateTimeSetListener mOnDateTimeSetListener; // 日期时间设置监听器
private DateTimePicker mDateTimePicker; // 日期时间选择器
public interface OnDateTimeSetListener {
void OnDateTimeSet(AlertDialog dialog, long date);
@ -42,34 +42,34 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
public DateTimePickerDialog(Context context, long date) {
super(context);
mDateTimePicker = new DateTimePicker(context);
setView(mDateTimePicker);
mDateTimePicker = new DateTimePicker(context); // 创建日期时间选择器
setView(mDateTimePicker); // 将日期时间选择器设置为对话框的视图
mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() {
public void onDateTimeChanged(DateTimePicker view, int year, int month,
int dayOfMonth, int hourOfDay, int minute) {
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);
updateTitle(mDate.getTimeInMillis());
mDate.set(Calendar.YEAR, year); // 设置年份
mDate.set(Calendar.MONTH, month); // 设置月份
mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); // 设置日期
mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); // 设置小时
mDate.set(Calendar.MINUTE, minute); // 设置分钟
updateTitle(mDate.getTimeInMillis()); // 更新对话框标题
}
});
mDate.setTimeInMillis(date);
mDate.set(Calendar.SECOND, 0);
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis());
setButton(context.getString(R.string.datetime_dialog_ok), this);
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null);
set24HourView(DateFormat.is24HourFormat(this.getContext()));
updateTitle(mDate.getTimeInMillis());
mDate.setTimeInMillis(date); // 设置初始日期时间
mDate.set(Calendar.SECOND, 0); // 将秒数设置为0
mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); // 设置日期时间选择器的当前日期时间
setButton(context.getString(R.string.datetime_dialog_ok), this); // 设置确定按钮
setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); // 设置取消按钮
set24HourView(DateFormat.is24HourFormat(this.getContext())); // 根据系统设置确定是否使用24小时制
updateTitle(mDate.getTimeInMillis()); // 更新对话框标题
}
public void set24HourView(boolean is24HourView) {
mIs24HourView = is24HourView;
mIs24HourView = is24HourView; // 设置是否使用24小时制
}
public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) {
mOnDateTimeSetListener = callBack;
mOnDateTimeSetListener = callBack; // 设置日期时间设置监听器
}
private void updateTitle(long date) {
@ -77,13 +77,13 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener
DateUtils.FORMAT_SHOW_YEAR |
DateUtils.FORMAT_SHOW_DATE |
DateUtils.FORMAT_SHOW_TIME;
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR;
setTitle(DateUtils.formatDateTime(this.getContext(), date, flag));
flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; // 根据是否使用24小时制设置标志位
setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); // 根据日期时间和标志位设置对话框标题
}
public void onClick(DialogInterface arg0, int arg1) {
if (mOnDateTimeSetListener != null) {
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis());
mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); // 触发日期时间设置监听器
}
}

@ -28,34 +28,35 @@ import android.widget.PopupMenu.OnMenuItemClickListener;
import net.micode.notes.R;
public class DropdownMenu {
private Button mButton;
private PopupMenu mPopupMenu;
private Menu mMenu;
private Button mButton; // 下拉菜单的按钮
private PopupMenu mPopupMenu; // 弹出菜单
private Menu mMenu; // 菜单
public DropdownMenu(Context context, Button button, int menuId) {
mButton = button;
mButton.setBackgroundResource(R.drawable.dropdown_icon);
mPopupMenu = new PopupMenu(context, mButton);
mMenu = mPopupMenu.getMenu();
mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
mButton.setBackgroundResource(R.drawable.dropdown_icon); // 设置按钮的背景图像为下拉图标
mPopupMenu = new PopupMenu(context, mButton); // 创建弹出菜单
mMenu = mPopupMenu.getMenu(); // 获取菜单
mPopupMenu.getMenuInflater().inflate(menuId, mMenu); // 填充菜单项
mButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
mPopupMenu.show();
mPopupMenu.show(); // 点击按钮时显示弹出菜单
}
});
}
public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
if (mPopupMenu != null) {
mPopupMenu.setOnMenuItemClickListener(listener);
mPopupMenu.setOnMenuItemClickListener(listener); // 设置菜单项点击监听器
}
}
public MenuItem findItem(int id) {
return mMenu.findItem(id);
return mMenu.findItem(id); // 查找指定ID的菜单项
}
public void setTitle(CharSequence title) {
mButton.setText(title);
mButton.setText(title); // 设置按钮的文本
}
}

@ -31,12 +31,12 @@ import net.micode.notes.data.Notes.NoteColumns;
public class FoldersListAdapter extends CursorAdapter {
public static final String [] PROJECTION = {
NoteColumns.ID,
NoteColumns.SNIPPET
NoteColumns.ID, // 列索引0ID列
NoteColumns.SNIPPET // 列索引1SNIPPET列
};
public static final int ID_COLUMN = 0;
public static final int NAME_COLUMN = 1;
public static final int ID_COLUMN = 0; // ID列的索引
public static final int NAME_COLUMN = 1; // 名称列的索引
public FoldersListAdapter(Context context, Cursor c) {
super(context, c);
@ -45,7 +45,7 @@ public class FoldersListAdapter extends CursorAdapter {
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return new FolderListItem(context);
return new FolderListItem(context); // 创建一个新的FolderListItem视图
}
@Override
@ -53,14 +53,14 @@ public class FoldersListAdapter extends CursorAdapter {
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);
((FolderListItem) view).bind(folderName);
((FolderListItem) view).bind(folderName); // 将文件夹名称绑定到视图
}
}
public String getFolderName(Context context, int position) {
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);
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); // 获取指定位置的文件夹名称
}
private class FolderListItem extends LinearLayout {
@ -68,13 +68,13 @@ public class FoldersListAdapter extends CursorAdapter {
public FolderListItem(Context context) {
super(context);
inflate(context, R.layout.folder_list_item, this);
inflate(context, R.layout.folder_list_item, this); // 填充自定义视图
mName = (TextView) findViewById(R.id.tv_folder_name);
}
public void bind(String name) {
mName.setText(name);
mName.setText(name); // 设置文件夹名称
}
}
}

@ -80,83 +80,83 @@ import java.util.regex.Pattern;
public class NoteEditActivity extends Activity implements OnClickListener,
NoteSettingChangedListener, OnTextViewChangeListener {
private class HeadViewHolder {
public TextView tvModified;
public TextView tvModified; // 修改日期
public ImageView ivAlertIcon;
public ImageView ivAlertIcon; // 提醒图标
public TextView tvAlertDate;
public TextView tvAlertDate; // 提醒日期
public ImageView ibSetBgColor;
public EditText editText;
public TextView textView;
public ImageView ibSetBgColor; // 设置背景颜色按钮
public EditText editText; // 编辑框
public TextView textView; // 文本视图
}
private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
static {
sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED);
sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE);
sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN);
sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE);
sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW); // 黄色背景按钮
sBgSelectorBtnsMap.put(R.id.iv_bg_red, ResourceParser.RED); // 红色背景按钮
sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE); // 蓝色背景按钮
sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN); // 绿色背景按钮
sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE); // 白色背景按钮
}
private static final Map<Integer, Integer> sBgSelectorSelectionMap = new HashMap<Integer, Integer>();
static {
sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select);
sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select);
sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select);
sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select);
sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select);
sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select); // 选择的黄色背景按钮
sBgSelectorSelectionMap.put(ResourceParser.RED, R.id.iv_bg_red_select); // 选择的红色背景按钮
sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select); // 选择的蓝色背景按钮
sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select); // 选择的绿色背景按钮
sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select); // 选择的白色背景按钮
}
private static final Map<Integer, Integer> sFontSizeBtnsMap = new HashMap<Integer, Integer>();
static {
sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE);
sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL);
sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM);
sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER);
sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE); // 大号字体按钮
sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL); // 小号字体按钮
sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM); // 中号字体按钮
sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER); // 超大号字体按钮
}
private static final Map<Integer, Integer> sFontSelectorSelectionMap = new HashMap<Integer, Integer>();
static {
sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select);
sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select);
sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select);
sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select);
sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select); // 选择的大号字体按钮
sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select); // 选择的小号字体按钮
sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select); // 选择的中号字体按钮
sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select); // 选择的超大号字体按钮
}
private static final String TAG = "NoteEditActivity";
private HeadViewHolder mNoteHeaderHolder;
private HeadViewHolder mNoteHeaderHolder; // 头部视图持有者
private View mHeadViewPanel;
private View mHeadViewPanel; // 头部视图面板
private View mNoteBgColorSelector;
private View mNoteBgColorSelector; // 笔记背景颜色选择器
private View mFontSizeSelector;
private View mFontSizeSelector; // 字体大小选择器
private EditText mNoteEditor;
private EditText mNoteEditor; // 笔记编辑器
private View mNoteEditorPanel;
private View mNoteEditorPanel; // 笔记编辑器面板
private WorkingNote mWorkingNote;
private WorkingNote mWorkingNote; // 当前工作笔记
private SharedPreferences mSharedPrefs;
private int mFontSizeId;
private SharedPreferences mSharedPrefs; // 共享首选项
private int mFontSizeId; // 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
private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10;
private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; // 快捷图标标题最大长度
public static final String TAG_CHECKED = String.valueOf('\u221A');
public static final String TAG_UNCHECKED = String.valueOf('\u25A1');
public static final String TAG_CHECKED = String.valueOf('\u221A'); // 选中标签
public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); // 未选中标签
private LinearLayout mEditTextList;
private LinearLayout mEditTextList; // 编辑文本列表
private String mUserQuery;
private Pattern mPattern;
private EditText editText;
private TextView textView;
private String mUserQuery; // 用户查询
private Pattern mPattern; // 模式
private EditText editText; // 编辑框
private TextView textView; // 文本视图
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

@ -101,28 +101,27 @@ public class NoteEditText extends EditText {
@Override
public boolean onTouchEvent(MotionEvent event) {
// 处理触摸事件,用于设置光标位置
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
int x = (int) event.getX();
int y = (int) event.getY();
x -= getTotalPaddingLeft();
y -= getTotalPaddingTop();
x += getScrollX();
y += getScrollY();
Layout layout = getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
Selection.setSelection(getText(), off);
break;
}
return super.onTouchEvent(event);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// 处理按键按下事件
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
if (mOnTextViewChangeListener != null) {
@ -140,6 +139,7 @@ public class NoteEditText extends EditText {
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
// 处理按键释放事件
switch(keyCode) {
case KeyEvent.KEYCODE_DEL:
if (mOnTextViewChangeListener != null) {
@ -169,6 +169,7 @@ public class NoteEditText extends EditText {
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
// 处理焦点变化事件
if (mOnTextViewChangeListener != null) {
if (!focused && TextUtils.isEmpty(getText())) {
mOnTextViewChangeListener.onTextChange(mIndex, false);
@ -181,13 +182,12 @@ public class NoteEditText extends EditText {
@Override
protected void onCreateContextMenu(ContextMenu menu) {
// 创建上下文菜单
if (getText() instanceof Spanned) {
int selStart = getSelectionStart();
int selEnd = getSelectionEnd();
int min = Math.min(selStart, selEnd);
int max = Math.max(selStart, selEnd);
final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class);
if (urls.length == 1) {
int defaultResId = 0;
@ -197,15 +197,13 @@ public class NoteEditText extends EditText {
break;
}
}
if (defaultResId == 0) {
defaultResId = R.string.note_link_other;
}
menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener(
new OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
// goto a new intent
// 执行URLSpan的点击操作
urls[0].onClick(NoteEditText.this);
return true;
}
@ -214,4 +212,4 @@ public class NoteEditText extends EditText {
}
super.onCreateContextMenu(menu);
}
}

@ -77,6 +77,7 @@ public class NoteItemData {
private boolean mIsMultiNotesFollowingFolder;
public NoteItemData(Context context, Cursor cursor) {
// 构造函数用于从数据库查询结果中创建NoteItemData对象
mId = cursor.getLong(ID_COLUMN);
mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
@ -94,8 +95,10 @@ public class NoteItemData {
mPhoneNumber = "";
if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
// 如果父文件夹ID为通话记录文件夹ID则获取与该笔记关联的电话号码
mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
if (!TextUtils.isEmpty(mPhoneNumber)) {
// 如果电话号码不为空,则获取联系人姓名
mName = Contact.getContact(context, mPhoneNumber);
if (mName == null) {
mName = mPhoneNumber;
@ -110,6 +113,7 @@ public class NoteItemData {
}
private void checkPostion(Cursor cursor) {
// 检查笔记在列表中的位置
mIsLastItem = cursor.isLast() ? true : false;
mIsFirstItem = cursor.isFirst() ? true : false;
mIsOnlyOneItem = (cursor.getCount() == 1);
@ -117,10 +121,12 @@ public class NoteItemData {
mIsOneNoteFollowingFolder = false;
if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {
// 如果笔记类型为普通笔记且不是第一个笔记
int position = cursor.getPosition();
if (cursor.moveToPrevious()) {
if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER
|| cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {
// 如果上一个笔记类型为文件夹或系统文件夹
if (cursor.getCount() > (position + 1)) {
mIsMultiNotesFollowingFolder = true;
} else {
@ -134,6 +140,7 @@ public class NoteItemData {
}
}
public boolean isOneFollowingFolder() {
return mIsOneNoteFollowingFolder;
}

@ -146,7 +146,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
initResources();
/**
* Insert an introduction when user firstly use this application
* 使
*/
setAppInfoFromRawRes();
}
@ -167,6 +167,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
StringBuilder sb = new StringBuilder();
InputStream in = null;
try {
// 从原始资源文件中读取介绍文本
in = getResources().openRawResource(R.raw.introduction);
if (in != null) {
InputStreamReader isr = new InputStreamReader(in);
@ -177,7 +178,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
sb.append(buf, 0, len);
}
} else {
Log.e(TAG, "Read introduction file error");
Log.e(TAG, "读取介绍文件错误");
return;
}
} catch (IOException e) {
@ -188,97 +189,90 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
try {
in.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
// 创建一个新的笔记并设置介绍文本
WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER,
AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE,
ResourceParser.RED);
note.setWorkingText(sb.toString());
if (note.saveNote()) {
// 保存笔记并标记已添加介绍
sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit();
} else {
Log.e(TAG, "Save introduction note error");
Log.e(TAG, "保存介绍笔记错误");
return;
}
}
}
@Override
protected void onStart() {
super.onStart();
startAsyncNotesListQuery();
startAsyncNotesListQuery(); // 在Activity启动时调用异步查询笔记列表的方法
}
private void initResources() {
mContentResolver = this.getContentResolver();
mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver());
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mNotesListView = (ListView) findViewById(R.id.notes_list);
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.setAdapter(mNotesListAdapter);
mAddNewNote = (Button) findViewById(R.id.btn_new_note);
mAddNewNote.setOnClickListener(this);
mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener());
mContentResolver = this.getContentResolver(); // 获取ContentResolver对象
mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); // 创建BackgroundQueryHandler对象
mCurrentFolderId = Notes.ID_ROOT_FOLDER; // 设置当前文件夹ID为根文件夹ID
mNotesListView = (ListView) findViewById(R.id.notes_list); // 获取笔记列表的ListView
mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), null, false); // 添加笔记列表的底部视图
mNotesListView.setOnItemClickListener(new OnListItemClickListener()); // 设置笔记列表的点击监听器
mNotesListView.setOnItemLongClickListener(this); // 设置笔记列表的长按监听器
mNotesListAdapter = new NotesListAdapter(this); // 创建笔记列表的适配器
mNotesListView.setAdapter(mNotesListAdapter); // 设置笔记列表的适配器
mAddNewNote = (Button) findViewById(R.id.btn_new_note); // 获取新建笔记的按钮
mAddNewNote.setOnClickListener(this); // 设置新建笔记按钮的点击监听器
mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); // 设置新建笔记按钮的触摸监听器
mDispatch = false;
mDispatchY = 0;
mOriginY = 0;
mTitleBar = (TextView) findViewById(R.id.tv_title_bar);
mState = ListEditState.NOTE_LIST;
mModeCallBack = new ModeCallback();
mTitleBar = (TextView) findViewById(R.id.tv_title_bar); // 获取标题栏的TextView
mState = ListEditState.NOTE_LIST; // 设置列表编辑状态为笔记列表
mModeCallBack = new ModeCallback(); // 创建ModeCallback对象
}
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; // ActionMode对象
private MenuItem mMoveMenu; // 移动菜单
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);
if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER
|| DataUtils.getUserFolderCount(mContentResolver) == 0) {
mMoveMenu.setVisible(false);
getMenuInflater().inflate(R.menu.note_list_options, menu); // 加载菜单资源文件
menu.findItem(R.id.delete).setOnMenuItemClickListener(this); // 设置删除菜单项的点击监听器
mMoveMenu = menu.findItem(R.id.move); // 获取移动菜单项
if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER || DataUtils.getUserFolderCount(mContentResolver) == 0) {
mMoveMenu.setVisible(false); // 如果当前笔记所在文件夹是通话记录文件夹或用户文件夹数量为0则隐藏移动菜单项
} else {
mMoveMenu.setVisible(true);
mMoveMenu.setVisible(true); // 否则显示移动菜单项,并设置点击监听器
mMoveMenu.setOnMenuItemClickListener(this);
}
mActionMode = mode;
mNotesListAdapter.setChoiceMode(true);
mNotesListView.setLongClickable(false);
mAddNewNote.setVisibility(View.GONE);
View customView = LayoutInflater.from(NotesListActivity.this).inflate(
R.layout.note_list_dropdown_menu, null);
mode.setCustomView(customView);
mDropDownMenu = new DropdownMenu(NotesListActivity.this,
(Button) customView.findViewById(R.id.selection_menu),
R.menu.note_list_dropdown);
mActionMode = mode; // 设置ActionMode对象
mNotesListAdapter.setChoiceMode(true); // 设置笔记列表适配器的选择模式为多选模式
mNotesListView.setLongClickable(false); // 设置笔记列表不可长按
mAddNewNote.setVisibility(View.GONE); // 隐藏新建笔记按钮
View customView = LayoutInflater.from(NotesListActivity.this).inflate(R.layout.note_list_dropdown_menu, null); // 加载自定义视图
mode.setCustomView(customView); // 设置ActionMode的自定义视图
mDropDownMenu = new DropdownMenu(NotesListActivity.this, (Button) customView.findViewById(R.id.selection_menu), R.menu.note_list_dropdown); // 创建下拉菜单
mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
public boolean onMenuItemClick(MenuItem item) {
mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected());
updateMenu();
mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); // 全选或取消全选
updateMenu(); // 更新菜单
return true;
}
});
return true;
}
private void updateMenu() {
int selectedCount = mNotesListAdapter.getSelectedCount();
// Update dropdown menu
int selectedCount = mNotesListAdapter.getSelectedCount(); // 获取选中的笔记数量
// 更新下拉菜单
String format = getResources().getString(R.string.menu_select_title, selectedCount);
mDropDownMenu.setTitle(format);
mDropDownMenu.setTitle(format); // 设置下拉菜单的标题
MenuItem item = mDropDownMenu.findItem(R.id.action_select_all);
if (item != null) {
if (mNotesListAdapter.isAllSelected()) {
@ -292,36 +286,32 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
// TODO Auto-generated method stub
return false;
}
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
// TODO Auto-generated method stub
return false;
}
public void onDestroyActionMode(ActionMode mode) {
mNotesListAdapter.setChoiceMode(false);
mNotesListView.setLongClickable(true);
mAddNewNote.setVisibility(View.VISIBLE);
onStart();
mNotesListAdapter.setChoiceMode(false); // 设置笔记列表适配器的选择模式为单选模式
mNotesListView.setLongClickable(true); // 设置笔记列表可长按
mAddNewNote.setVisibility(View.VISIBLE); // 显示新建笔记按钮
onStart(); // 重新调用onStart()方法
}
public void finishActionMode() {
mActionMode.finish();
mActionMode.finish(); // 结束ActionMode
}
public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
boolean checked) {
mNotesListAdapter.setCheckedItem(position, checked);
updateMenu();
public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
mNotesListAdapter.setCheckedItem(position, checked); // 设置选中的笔记项
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.makeText(NotesListActivity.this, getString(R.string.menu_select_none), Toast.LENGTH_SHORT).show(); // 如果没有选中的笔记,则显示提示信息
return true;
}
@ -330,31 +320,30 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
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()));
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
batchDelete();
builder.setMessage(getString(R.string.alert_message_delete_notes, mNotesListAdapter.getSelectedCount()));
builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
batchDelete(); // 批量删除选中的笔记
}
});
builder.setNegativeButton(android.R.string.cancel, null);
builder.show();
} else if (itemId == R.id.move) {
startQueryDestinationFolders();
startQueryDestinationFolders(); // 查询目标文件夹
} else {
return false;
}
return true;
}
}
private class NewNoteOnTouchListener implements OnTouchListener {
// 触摸事件监听器,用于处理新笔记按钮的触摸事件
public boolean onTouch(View v, MotionEvent event) {
// 当触摸事件发生时调用此方法
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN: {
// 当手指按下时执行以下操作
Display display = getWindowManager().getDefaultDisplay();
int screenHeight = display.getHeight();
int newNoteViewHeight = mAddNewNote.getHeight();
@ -364,6 +353,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
* Minus TitleBar's height
*/
if (mState == ListEditState.SUB_FOLDER) {
// 如果当前状态为子文件夹状态,则需要减去标题栏的高度
eventY -= mTitleBar.getHeight();
start -= mTitleBar.getHeight();
}
@ -377,10 +367,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
* also change. This is very bad, just for the UI designer's strong requirement.
*/
if (event.getY() < (event.getX() * (-0.12) + 94)) {
// 当点击"New Note"按钮的透明部分时,将事件分发给按钮后面的列表视图
View view = mNotesListView.getChildAt(mNotesListView.getChildCount() - 1
- mNotesListView.getFooterViewsCount());
if (view != null && view.getBottom() > start
&& (view.getTop() < (start + 94))) {
// 判断是否点击了列表视图的最后一项
mOriginY = (int) event.getY();
mDispatchY = eventY;
event.setLocation(event.getX(), mDispatchY);
@ -391,6 +383,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
break;
}
case MotionEvent.ACTION_MOVE: {
// 当手指移动时执行以下操作
if (mDispatch) {
mDispatchY += (int) event.getY() - mOriginY;
event.setLocation(event.getX(), mDispatchY);
@ -399,6 +392,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
break;
}
default: {
// 其他情况下执行以下操作
if (mDispatch) {
event.setLocation(event.getX(), mDispatchY);
mDispatch = false;
@ -409,10 +403,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
return false;
}
};
private void startAsyncNotesListQuery() {
// 异步查询笔记列表数据
String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
: NORMAL_SELECTION;
mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
@ -422,17 +416,21 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private final class BackgroundQueryHandler extends AsyncQueryHandler {
// 后台查询处理器,用于执行异步查询操作
public BackgroundQueryHandler(ContentResolver contentResolver) {
super(contentResolver);
}
@Override
protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
// 查询完成时调用此方法
switch (token) {
case FOLDER_NOTE_LIST_QUERY_TOKEN:
// 查询笔记列表完成
mNotesListAdapter.changeCursor(cursor);
break;
case FOLDER_LIST_QUERY_TOKEN:
// 查询文件夹列表完成
if (cursor != null && cursor.getCount() > 0) {
showFolderListMenu(cursor);
} else {
@ -446,12 +444,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private void showFolderListMenu(Cursor cursor) {
// 显示文件夹列表菜单
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(R.string.menu_title_select_folder);
final FoldersListAdapter adapter = new FoldersListAdapter(this, cursor);
builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// 当点击菜单项时执行以下操作
DataUtils.batchMoveToFolder(mContentResolver,
mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which));
Toast.makeText(
@ -467,6 +467,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private void createNewNote() {
// 创建新笔记
Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId);
@ -474,19 +475,19 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private void batchDelete() {
// 批量删除
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
// 如果不是同步模式,则直接删除笔记
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
// 在同步模式下,将删除的笔记移动到回收站文件夹
if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter
.getSelectedItemIds(), Notes.ID_TRASH_FOLER)) {
Log.e(TAG, "Move notes to trash folder error, should not happens");
@ -687,14 +688,17 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
public void onBackPressed() {
// 当返回按钮按下时调用此方法
switch (mState) {
case SUB_FOLDER:
// 如果当前状态为子文件夹状态,则返回到根文件夹状态
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mState = ListEditState.NOTE_LIST;
startAsyncNotesListQuery();
mTitleBar.setVisibility(View.GONE);
break;
case CALL_RECORD_FOLDER:
// 如果当前状态为通话记录文件夹状态,则返回到根文件夹状态
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mState = ListEditState.NOTE_LIST;
mAddNewNote.setVisibility(View.VISIBLE);
@ -702,6 +706,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
startAsyncNotesListQuery();
break;
case NOTE_LIST:
// 如果当前状态为笔记列表状态,则执行默认的返回操作
super.onBackPressed();
break;
default:
@ -710,6 +715,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private void updateWidget(int appWidgetId, int appWidgetType) {
// 更新小部件
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
if (appWidgetType == Notes.TYPE_WIDGET_2X) {
intent.setClass(this, NoteWidgetProvider_2x.class);
@ -729,6 +735,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() {
// 文件夹上下文菜单的创建监听器
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
if (mFocusNoteDataItem != null) {
menu.setHeaderTitle(mFocusNoteDataItem.getSnippet());
@ -783,10 +790,11 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// 准备选项菜单
menu.clear();
if (mState == ListEditState.NOTE_LIST) {
getMenuInflater().inflate(R.menu.note_list, menu);
// set sync or sync_cancel
// 设置同步或取消同步的菜单项
menu.findItem(R.id.menu_sync).setTitle(
GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync);
} else if (mState == ListEditState.SUB_FOLDER) {
@ -808,6 +816,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// 当选项菜单项被选中时调用此方法
int itemId = item.getItemId();
if (itemId == R.id.menu_new_folder) {
showCreateOrModifyFolderDialog(true);
@ -844,11 +853,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override
public boolean onSearchRequested() {
// 当搜索请求发生时调用此方法
startSearch(null, false, null /* appData */, false);
return true;
}
private void exportNoteToText() {
// 导出笔记为文本文件
final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this);
new AsyncTask<Void, Void, Integer>() {
@ -891,10 +902,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private boolean isSyncMode() {
// 判断是否为同步模式
return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
}
private void startPreferenceActivity() {
// 启动设置界面
Activity from = getParent() != null ? getParent() : this;
Intent intent = new Intent(from, NotesPreferenceActivity.class);
from.startActivityIfNeeded(intent, -1);
@ -942,6 +955,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
private void startQueryDestinationFolders() {
// 开始查询目标文件夹
String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?";
selection = (mState == ListEditState.NOTE_LIST) ? selection:
"(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")";
@ -975,4 +989,4 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
return false;
}
}

@ -38,11 +38,13 @@ public class NotesListAdapter extends CursorAdapter {
private int mNotesCount;
private boolean mChoiceMode;
// 静态内部类,用于存储小部件的属性
public static class AppWidgetAttribute {
public int widgetId;
public int widgetType;
};
// 构造函数,初始化成员变量
public NotesListAdapter(Context context) {
super(context, null);
mSelectedIndex = new HashMap<Integer, Boolean>();
@ -50,11 +52,13 @@ public class NotesListAdapter extends CursorAdapter {
mNotesCount = 0;
}
// 创建新的NotesListItem视图
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return new NotesListItem(context);
}
// 将数据绑定到视图上
@Override
public void bindView(View view, Context context, Cursor cursor) {
if (view instanceof NotesListItem) {
@ -64,20 +68,24 @@ public class NotesListAdapter extends CursorAdapter {
}
}
// 设置指定位置的项的选中状态
public void setCheckedItem(final int position, final boolean checked) {
mSelectedIndex.put(position, checked);
notifyDataSetChanged();
}
// 判断是否处于选择模式
public boolean isInChoiceMode() {
return mChoiceMode;
}
// 设置选择模式
public void setChoiceMode(boolean mode) {
mSelectedIndex.clear();
mChoiceMode = mode;
}
// 选择所有的项
public void selectAll(boolean checked) {
Cursor cursor = getCursor();
for (int i = 0; i < getCount(); i++) {
@ -89,6 +97,7 @@ public class NotesListAdapter extends CursorAdapter {
}
}
// 获取选中项的ID集合
public HashSet<Long> getSelectedItemIds() {
HashSet<Long> itemSet = new HashSet<Long>();
for (Integer position : mSelectedIndex.keySet()) {
@ -105,6 +114,7 @@ public class NotesListAdapter extends CursorAdapter {
return itemSet;
}
// 获取选中的小部件集合
public HashSet<AppWidgetAttribute> getSelectedWidget() {
HashSet<AppWidgetAttribute> itemSet = new HashSet<AppWidgetAttribute>();
for (Integer position : mSelectedIndex.keySet()) {
@ -128,6 +138,7 @@ public class NotesListAdapter extends CursorAdapter {
return itemSet;
}
// 获取选中项的数量
public int getSelectedCount() {
Collection<Boolean> values = mSelectedIndex.values();
if (null == values) {
@ -143,11 +154,13 @@ public class NotesListAdapter extends CursorAdapter {
return count;
}
// 判断是否所有项都被选中
public boolean isAllSelected() {
int checkedCount = getSelectedCount();
return (checkedCount != 0 && checkedCount == mNotesCount);
}
// 判断指定位置的项是否被选中
public boolean isSelectedItem(final int position) {
if (null == mSelectedIndex.get(position)) {
return false;
@ -155,18 +168,21 @@ public class NotesListAdapter extends CursorAdapter {
return mSelectedIndex.get(position);
}
// 数据发生变化时更新笔记项的数量
@Override
protected void onContentChanged() {
super.onContentChanged();
calcNotesCount();
}
// 更改游标时更新笔记项的数量
@Override
public void changeCursor(Cursor cursor) {
super.changeCursor(cursor);
calcNotesCount();
}
// 计算笔记项的数量
private void calcNotesCount() {
mNotesCount = 0;
for (int i = 0; i < getCount(); i++) {
@ -182,3 +198,4 @@ public class NotesListAdapter extends CursorAdapter {
}
}
}

@ -31,24 +31,25 @@ import net.micode.notes.tool.ResourceParser.NoteItemBgResources;
public class NotesListItem extends LinearLayout {
private ImageView mAlert;
private TextView mTitle;
private TextView mTime;
private TextView mCallName;
private NoteItemData mItemData;
private CheckBox mCheckBox;
private ImageView mAlert; // 显示警告图标的ImageView
private TextView mTitle; // 显示标题的TextView
private TextView mTime; // 显示时间的TextView
private TextView mCallName; // 显示呼叫名称的TextView
private NoteItemData mItemData; // 笔记项的数据
private CheckBox mCheckBox; // 多选模式下的复选框
public NotesListItem(Context context) {
super(context);
inflate(context, R.layout.note_item, this);
mAlert = (ImageView) findViewById(R.id.iv_alert_icon);
mTitle = (TextView) findViewById(R.id.tv_title);
mTime = (TextView) findViewById(R.id.tv_time);
mCallName = (TextView) findViewById(R.id.tv_name);
mCheckBox = (CheckBox) findViewById(android.R.id.checkbox);
inflate(context, R.layout.note_item, this); // 加载note_item布局文件到当前LinearLayout
mAlert = (ImageView) findViewById(R.id.iv_alert_icon); // 初始化mAlert为布局文件中的ImageView
mTitle = (TextView) findViewById(R.id.tv_title); // 初始化mTitle为布局文件中的TextView
mTime = (TextView) findViewById(R.id.tv_time); // 初始化mTime为布局文件中的TextView
mCallName = (TextView) findViewById(R.id.tv_name); // 初始化mCallName为布局文件中的TextView
mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); // 初始化mCheckBox为布局文件中的CheckBox
}
public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) {
// 根据选择模式和数据类型设置复选框的可见性和选中状态
if (choiceMode && data.getType() == Notes.TYPE_NOTE) {
mCheckBox.setVisibility(View.VISIBLE);
mCheckBox.setChecked(checked);
@ -56,8 +57,11 @@ public class NotesListItem extends LinearLayout {
mCheckBox.setVisibility(View.GONE);
}
mItemData = data;
mItemData = data; // 保存数据到成员变量
// 根据数据类型和数据内容设置显示的文本和图标
if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
// 如果数据是通话记录文件夹
mCallName.setVisibility(View.GONE);
mAlert.setVisibility(View.VISIBLE);
mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
@ -65,6 +69,7 @@ public class NotesListItem extends LinearLayout {
+ context.getString(R.string.format_folder_files_count, data.getNotesCount()));
mAlert.setImageResource(R.drawable.call_record);
} else if (data.getParentId() == Notes.ID_CALL_RECORD_FOLDER) {
// 如果数据是通话记录文件夹的子项
mCallName.setVisibility(View.VISIBLE);
mCallName.setText(data.getCallName());
mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem);
@ -76,15 +81,18 @@ public class NotesListItem extends LinearLayout {
mAlert.setVisibility(View.GONE);
}
} else {
// 其他类型的数据
mCallName.setVisibility(View.GONE);
mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem);
if (data.getType() == Notes.TYPE_FOLDER) {
// 如果数据是文件夹类型
mTitle.setText(data.getSnippet()
+ context.getString(R.string.format_folder_files_count,
data.getNotesCount()));
mAlert.setVisibility(View.GONE);
} else {
// 如果数据是笔记类型
mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet()));
if (data.hasAlert()) {
mAlert.setImageResource(R.drawable.clock);
@ -94,14 +102,16 @@ public class NotesListItem extends LinearLayout {
}
}
}
mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate()));
setBackground(data);
mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate())); // 设置时间文本
setBackground(data); // 设置背景
}
private void setBackground(NoteItemData data) {
int id = data.getBgColorId();
if (data.getType() == Notes.TYPE_NOTE) {
// 如果数据是笔记类型
if (data.isSingle() || data.isOneFollowingFolder()) {
setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id));
} else if (data.isLast()) {
@ -112,11 +122,13 @@ public class NotesListItem extends LinearLayout {
setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id));
}
} else {
// 如果数据是文件夹类型
setBackgroundResource(NoteItemBgResources.getFolderBgRes());
}
}
public NoteItemData getItemData() {
return mItemData;
return mItemData; // 返回笔记项的数据
}
}

@ -74,37 +74,49 @@ public class NotesPreferenceActivity extends PreferenceActivity {
super.onCreate(icicle);
/* using the app icon for navigation */
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setDisplayHomeAsUpEnabled(true); // 设置ActionBar的导航按钮可见通常用于返回上一个界面。
addPreferencesFromResource(R.xml.preferences);
mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY);
mReceiver = new GTaskReceiver();
IntentFilter filter = new IntentFilter();
filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME);
registerReceiver(mReceiver, filter);
addPreferencesFromResource(R.xml.preferences); // 从XML资源文件中加载偏好设置。
mOriAccounts = null;
View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null);
getListView().addHeaderView(header, null, true);
mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY); // 获取偏好设置中的PreferenceCategory对象。
mReceiver = new GTaskReceiver(); // 创建一个GTaskReceiver对象用于接收广播。
IntentFilter filter = new IntentFilter(); // 创建一个IntentFilter对象用于过滤广播。
filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME); // 添加一个广播动作到IntentFilter中。
registerReceiver(mReceiver, filter); // 注册广播接收器,使其能够接收指定动作的广播。
mOriAccounts = null; // 将mOriAccounts变量设置为null。
View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null); // 通过布局文件`settings_header`创建一个视图对象。
getListView().addHeaderView(header, null, true); // 将创建的视图对象添加为ListView的头部视图。
}
@Override
protected void onResume() {
super.onResume();
// need to set sync account automatically if user has added a new
// account
// 如果用户已经添加了一个新的账户,那么就需要自动设置同步账户
if (mHasAddedAccount) {
// 获取所有的Google账户并将其存储在一个数组中
Account[] accounts = getGoogleAccounts();
// 如果新账户的数量大于旧账户的数量,说明有新账户添加
if (mOriAccounts != null && accounts.length > mOriAccounts.length) {
// 遍历新账户数组,与旧账户数组进行比较
for (Account accountNew : accounts) {
boolean found = false;
for (Account accountOld : mOriAccounts) {
// 如果找到了相同的账户将found标志设置为true并跳出循环
if (TextUtils.equals(accountOld.name, accountNew.name)) {
found = true;
break;
}
}
// 如果没有找到相同的账户就调用setSyncAccount()方法设置同步账户为新账户的名称,并跳出循环
if (!found) {
setSyncAccount(accountNew.name);
break;
@ -113,11 +125,14 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
}
// 刷新用户界面
refreshUI();
}
@Override
protected void onDestroy() {
// 如果广播接收器不为空,则取消注册
if (mReceiver != null) {
unregisterReceiver(mReceiver);
}
@ -125,24 +140,30 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
private void loadAccountPreference() {
// 清空账户类别下的所有偏好设置
mAccountCategory.removeAll();
// 创建一个Preference对象
Preference accountPref = new Preference(this);
final String defaultAccount = getSyncAccountName(this);
// 设置Preference的标题和摘要
accountPref.setTitle(getString(R.string.preferences_account_title));
accountPref.setSummary(getString(R.string.preferences_account_summary));
// 设置Preference的点击事件监听器
accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
public boolean onPreferenceClick(Preference preference) {
// 如果当前没有正在进行同步操作
if (!GTaskSyncService.isSyncing()) {
// 如果默认账户为空,说明是第一次设置账户
if (TextUtils.isEmpty(defaultAccount)) {
// the first time to set account
// 显示选择账户的对话框
showSelectAccountAlertDialog();
} else {
// if the account has already been set, we need to promp
// user about the risk
// 如果账户已经设置过,需要提示用户风险
showChangeAccountConfirmAlertDialog();
}
} else {
// 如果当前正在进行同步操作,显示提示信息
Toast.makeText(NotesPreferenceActivity.this,
R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT)
.show();
@ -151,18 +172,22 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
});
// 将Preference添加到账户类别下
mAccountCategory.addPreference(accountPref);
}
private void loadSyncButton() {
// 获取同步按钮和上次同步时间的视图
Button syncButton = (Button) findViewById(R.id.preference_sync_button);
TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview);
// set button state
// 设置按钮状态
if (GTaskSyncService.isSyncing()) {
syncButton.setText(getString(R.string.preferences_button_sync_cancel));
syncButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// 取消同步操作
GTaskSyncService.cancelSync(NotesPreferenceActivity.this);
}
});
@ -170,13 +195,15 @@ public class NotesPreferenceActivity extends PreferenceActivity {
syncButton.setText(getString(R.string.preferences_button_sync_immediately));
syncButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// 开始同步操作
GTaskSyncService.startSync(NotesPreferenceActivity.this);
}
});
}
// 根据同步账户的名称设置按钮是否可用
syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this)));
// set last sync time
// 设置上次同步时间
if (GTaskSyncService.isSyncing()) {
lastSyncTimeView.setText(GTaskSyncService.getProgressString());
lastSyncTimeView.setVisibility(View.VISIBLE);
@ -194,22 +221,26 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
private void refreshUI() {
// 刷新用户界面
loadAccountPreference();
loadSyncButton();
}
private void showSelectAccountAlertDialog() {
// 创建对话框构建器
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
// 设置对话框标题视图
View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
titleTextView.setText(getString(R.string.preferences_dialog_select_account_title));
TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle);
subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips));
dialogBuilder.setCustomTitle(titleView);
dialogBuilder.setPositiveButton(null, null);
// 获取Google账户列表和当前同步账户
Account[] accounts = getGoogleAccounts();
String defAccount = getSyncAccountName(this);
@ -217,6 +248,7 @@ public class NotesPreferenceActivity extends PreferenceActivity {
mHasAddedAccount = false;
if (accounts.length > 0) {
// 构建单选列表项
CharSequence[] items = new CharSequence[accounts.length];
final CharSequence[] itemMapping = items;
int checkedItem = -1;
@ -230,6 +262,7 @@ public class NotesPreferenceActivity extends PreferenceActivity {
dialogBuilder.setSingleChoiceItems(items, checkedItem,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// 设置同步账户并刷新界面
setSyncAccount(itemMapping[which].toString());
dialog.dismiss();
refreshUI();
@ -237,12 +270,15 @@ public class NotesPreferenceActivity extends PreferenceActivity {
});
}
// 设置添加账户的视图
View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null);
dialogBuilder.setView(addAccountView);
// 显示对话框
final AlertDialog dialog = dialogBuilder.show();
addAccountView.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// 标记已添加账户,并打开添加账户的界面
mHasAddedAccount = true;
Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS");
intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] {
@ -255,8 +291,10 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
private void showChangeAccountConfirmAlertDialog() {
// 创建对话框构建器
AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
// 设置对话框标题视图
View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null);
TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title);
titleTextView.setText(getString(R.string.preferences_dialog_change_account_title,
@ -265,6 +303,7 @@ public class NotesPreferenceActivity extends PreferenceActivity {
subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg));
dialogBuilder.setCustomTitle(titleView);
// 设置对话框选项
CharSequence[] menuItemArray = new CharSequence[] {
getString(R.string.preferences_menu_change_account),
getString(R.string.preferences_menu_remove_account),
@ -273,8 +312,10 @@ public class NotesPreferenceActivity extends PreferenceActivity {
dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
if (which == 0) {
// 显示选择账户的对话框
showSelectAccountAlertDialog();
} else if (which == 1) {
// 移除同步账户并刷新界面
removeSyncAccount();
refreshUI();
}
@ -284,11 +325,14 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
private Account[] getGoogleAccounts() {
// 获取Google账户列表
AccountManager accountManager = AccountManager.get(this);
return accountManager.getAccountsByType("com.google");
}
private void setSyncAccount(String account) {
/*设置同步账户。它首先检查传入的账户名是否与当前保存的账户名不同如果不同则更新SharedPreferences中的账户名。然后它清除上次同步时间并在后台线程中清除本地与GTask相关的信息。最后它显示一个Toast消息通知用户账户设置成功。*/
if (!getSyncAccountName(this).equals(account)) {
SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = settings.edit();
@ -339,7 +383,7 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
}).start();
}
//设置上次同步时间
public static String getSyncAccountName(Context context) {
SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME,
Context.MODE_PRIVATE);
@ -361,7 +405,7 @@ public class NotesPreferenceActivity extends PreferenceActivity {
}
private class GTaskReceiver extends BroadcastReceiver {
//广播接收器用于接收GTask同步服务的广播消息。
@Override
public void onReceive(Context context, Intent intent) {
refreshUI();
@ -370,7 +414,7 @@ public class NotesPreferenceActivity extends PreferenceActivity {
syncStatus.setText(intent
.getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG));
}
//它在接收到广播后刷新UI并根据广播中的信息更新同步状态
}
}

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