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Code Issues Pull Requests 4 Packages Projects Releases Wiki Activity

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thy 2 years ago
parent 5b5daf44c9
commit 011e9ade73
1 changed files with 148 additions and 132 deletions
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238
小米便签源码/src/net/micode/notes/ui/NotesListActivity.java
Unescape View File

@ -67,6 +67,7 @@ import java.util.HashSet;
* *
*/ */
public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { //没有用特定的标签加注释。。。感觉没有什么用 public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { //没有用特定的标签加注释。。。感觉没有什么用
// 定义一些常量和枚举类型
private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
private static final int FOLDER_LIST_QUERY_TOKEN = 1; private static final int FOLDER_LIST_QUERY_TOKEN = 1;
@ -83,35 +84,35 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER
}; };
private ListEditState mState; private ListEditState mState; // 当前列表的编辑状态
private BackgroundQueryHandler mBackgroundQueryHandler; private BackgroundQueryHandler mBackgroundQueryHandler; // 异步查询处理器
private NotesListAdapter mNotesListAdapter; private NotesListAdapter mNotesListAdapter; // 笔记列表的适配器
private ListView mNotesListView; private ListView mNotesListView; // 笔记列表视图
private Button mAddNewNote; private Button mAddNewNote; // 添加新笔记的按钮
private boolean mDispatch; private boolean mDispatch; // 是否分发事件
private int mOriginY; private int mOriginY; // 原始Y坐标
private int mDispatchY; private int mDispatchY; // 分发Y坐标
private TextView mTitleBar; private TextView mTitleBar; // 标题栏
private long mCurrentFolderId; private long mCurrentFolderId; // 当前文件夹的ID
private ContentResolver mContentResolver; private ContentResolver mContentResolver; // 内容解析器
private ModeCallback mModeCallBack; private ModeCallback mModeCallBack; // 模式回调
private static final String TAG = "NotesListActivity"; private static final String TAG = "NotesListActivity";
public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; public static final int NOTES_LISTVIEW_SCROLL_RATE = 30;
private NoteItemData mFocusNoteDataItem; private NoteItemData mFocusNoteDataItem; // 当前焦点笔记的数据项
private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?"; private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?";
@ -137,7 +138,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
/** /**
* Insert an introduction when user firstly use this application * Insert an introduction when user firstly use this application
*/ */
setAppInfoFromRawRes(); setAppInfoFromRawRes();// 初始化应用信息
} }
@Override @Override
@ -156,14 +157,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
private void setAppInfoFromRawRes() { private void setAppInfoFromRawRes() {
// Android平台给我们提供了一个SharedPreferences类，它是一个轻量级的存储类，特别适合用于保存软件配置参数。 // Android平台给我们提供了一个SharedPreferences类，它是一个轻量级的存储类，特别适合用于保存软件配置参数。
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) { if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) {// 判断是否已添加介绍
StringBuilder sb = new StringBuilder(); StringBuilder sb = new StringBuilder();
InputStream in = null; InputStream in = null;
try { try {
// 把资源文件放到应用程序的/raw/raw下，那么就可以在应用中使用getResources获取资源后, // 把资源文件放到应用程序的/raw/raw下，那么就可以在应用中使用getResources获取资源后,
// 以openRawResource方法（不带后缀的资源文件名）打开这个文件。 // 以openRawResource方法（不带后缀的资源文件名）打开这个文件。
in = getResources().openRawResource(R.raw.introduction); in = getResources().openRawResource(R.raw.introduction);
if (in != null) { if (in != null) {// 读取原始资源文件中的介绍内容
InputStreamReader isr = new InputStreamReader(in); InputStreamReader isr = new InputStreamReader(in);
BufferedReader br = new BufferedReader(isr); BufferedReader br = new BufferedReader(isr);
char [] buf = new char[1024]; // 自行定义的数值，使用者不知道有什么意义 char [] buf = new char[1024]; // 自行定义的数值，使用者不知道有什么意义
@ -192,9 +193,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
// 创建空的WorkingNote // 创建空的WorkingNote
WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER, WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER,
AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE, AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE,
ResourceParser.RED); ResourceParser.RED); // 创建一个新的工作笔记
note.setWorkingText(sb.toString()); note.setWorkingText(sb.toString()); // 设置工作笔记的内容为读取到的介绍内容
if (note.saveNote()) { if (note.saveNote()) { // 保存工作笔记
// 更新保存note的信息 // 更新保存note的信息
sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit(); sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit();
} else { } else {
@ -213,11 +214,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
// 初始化资源 // 初始化资源
private void initResources() { private void initResources() {
mContentResolver = this.getContentResolver(); // 获取应用程序的数据，得到类似数据表的东西 mContentResolver = this.getContentResolver(); // 获取应用程序的数据，得到类似数据表的东西
// 初始化BackgroundQueryHandler
mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver());
mCurrentFolderId = Notes.ID_ROOT_FOLDER; mCurrentFolderId = Notes.ID_ROOT_FOLDER;
// findViewById 是安卓编程的定位函数，主要是引用.R文件里的引用名 // findViewById 是安卓编程的定位函数，主要是引用.R文件里的引用名
mNotesListView = (ListView) findViewById(R.id.notes_list); // 绑定XML中的ListView，作为Item的容器 mNotesListView = (ListView) findViewById(R.id.notes_list); // 绑定XML中的ListView，作为Item的容器
// 将尾部视图添加到列表视图
mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null),
null, false); null, false);
mNotesListView.setOnItemClickListener(new OnListItemClickListener()); mNotesListView.setOnItemClickListener(new OnListItemClickListener());
@ -240,7 +243,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
private DropdownMenu mDropDownMenu; private DropdownMenu mDropDownMenu;
private ActionMode mActionMode; private ActionMode mActionMode;
private MenuItem mMoveMenu; private MenuItem mMoveMenu;
// 创建ActionMode时触发
public boolean onCreateActionMode(ActionMode mode, Menu menu) { public boolean onCreateActionMode(ActionMode mode, Menu menu) {
getMenuInflater().inflate(R.menu.note_list_options, menu); getMenuInflater().inflate(R.menu.note_list_options, menu);
menu.findItem(R.id.delete).setOnMenuItemClickListener(this); menu.findItem(R.id.delete).setOnMenuItemClickListener(this);
@ -256,7 +259,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
mNotesListAdapter.setChoiceMode(true); mNotesListAdapter.setChoiceMode(true);
mNotesListView.setLongClickable(false); mNotesListView.setLongClickable(false);
mAddNewNote.setVisibility(View.GONE); mAddNewNote.setVisibility(View.GONE);
// 初始化下拉菜单
View customView = LayoutInflater.from(NotesListActivity.this).inflate( View customView = LayoutInflater.from(NotesListActivity.this).inflate(
R.layout.note_list_dropdown_menu, null); R.layout.note_list_dropdown_menu, null);
mode.setCustomView(customView); mode.setCustomView(customView);
@ -266,7 +269,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){ mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){
public boolean onMenuItemClick(final MenuItem item) { public boolean onMenuItemClick(final MenuItem item) {
mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected());
updateMenu(); updateMenu();// 更新菜单
return true; return true;
} }
@ -301,7 +304,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
// TODO Auto-generated method stub // TODO Auto-generated method stub
return false; return false;
} }
// 销毁ActionMode时触发
public void onDestroyActionMode(ActionMode mode) { public void onDestroyActionMode(ActionMode mode) {
mNotesListAdapter.setChoiceMode(false); mNotesListAdapter.setChoiceMode(false);
mNotesListView.setLongClickable(true); mNotesListView.setLongClickable(true);
@ -311,13 +314,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
public void finishActionMode() { public void finishActionMode() {
mActionMode.finish(); mActionMode.finish();
} }
// 当选择的项发生变化时触发
public void onItemCheckedStateChanged(ActionMode mode, int position, long id, public void onItemCheckedStateChanged(ActionMode mode, int position, long id,
boolean checked) { boolean checked) {
mNotesListAdapter.setCheckedItem(position, checked); mNotesListAdapter.setCheckedItem(position, checked);
updateMenu(); updateMenu();
} }
// 菜单项点击事件处理
public boolean onMenuItemClick(MenuItem item) { public boolean onMenuItemClick(MenuItem item) {
if (mNotesListAdapter.getSelectedCount() == 0) { if (mNotesListAdapter.getSelectedCount() == 0) {
Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none),
@ -327,6 +330,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
switch (item.getItemId()) { switch (item.getItemId()) {
case R.id.delete: case R.id.delete:
// 弹出删除对话框
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(getString(R.string.alert_title_delete)); builder.setTitle(getString(R.string.alert_title_delete));
builder.setIcon(android.R.drawable.ic_dialog_alert); builder.setIcon(android.R.drawable.ic_dialog_alert);
@ -343,7 +347,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
builder.show(); builder.show();
break; break;
case R.id.move: case R.id.move:
startQueryDestinationFolders(); startQueryDestinationFolders();// 查询目标文件夹
break; break;
default: default:
return false; return false;
@ -415,14 +419,16 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}; };
private void startAsyncNotesListQuery() { private void startAsyncNotesListQuery() {
// 构建查询语句的selection，根据当前文件夹id选择不同的查询条件
String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION
: NORMAL_SELECTION; : NORMAL_SELECTION;
// 调用异步查询处理器进行数据库查询
mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null, mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null,
Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] { Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] {
String.valueOf(mCurrentFolderId) String.valueOf(mCurrentFolderId)
}, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
} }
// 异步查询处理器类
private final class BackgroundQueryHandler extends AsyncQueryHandler { private final class BackgroundQueryHandler extends AsyncQueryHandler {
public BackgroundQueryHandler(ContentResolver contentResolver) { public BackgroundQueryHandler(ContentResolver contentResolver) {
super(contentResolver); super(contentResolver);
@ -432,10 +438,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
protected void onQueryComplete(int token, Object cookie, Cursor cursor) { protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
switch (token) { switch (token) {
case FOLDER_NOTE_LIST_QUERY_TOKEN: case FOLDER_NOTE_LIST_QUERY_TOKEN:
// 查询完成后更新列表适配器的Cursor数据源
mNotesListAdapter.changeCursor(cursor); mNotesListAdapter.changeCursor(cursor);
break; break;
case FOLDER_LIST_QUERY_TOKEN: case FOLDER_LIST_QUERY_TOKEN:
if (cursor != null && cursor.getCount() > 0) { if (cursor != null && cursor.getCount() > 0) {
// 如果查询到了文件夹列表，则显示文件夹选择菜单
showFolderListMenu(cursor); showFolderListMenu(cursor);
} else { } else {
Log.e(TAG, "Query folder failed"); Log.e(TAG, "Query folder failed");
@ -446,7 +454,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
} }
} }
} }
// 显示文件夹选择菜单
private void showFolderListMenu(Cursor cursor) { private void showFolderListMenu(Cursor cursor) {
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(R.string.menu_title_select_folder); builder.setTitle(R.string.menu_title_select_folder);
@ -454,6 +462,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
builder.setAdapter(adapter, new DialogInterface.OnClickListener() { builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) { public void onClick(DialogInterface dialog, int which) {
// 点击菜单项后进行相应操作，这里是批量移动笔记到选中的文件夹
DataUtils.batchMoveToFolder(mContentResolver, DataUtils.batchMoveToFolder(mContentResolver,
mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which)); mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which));
Toast.makeText( Toast.makeText(
@ -467,19 +476,21 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}); });
builder.show(); builder.show();
} }
// 创建新的笔记
private void createNewNote() { private void createNewNote() {
Intent intent = new Intent(this, NoteEditActivity.class); Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_INSERT_OR_EDIT); intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId); intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId);
this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE); this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE);
} }
// 批量删除操作
private void batchDelete() { private void batchDelete() {
new AsyncTask<Void, Void, HashSet<AppWidgetAttribute>>() { new AsyncTask<Void, Void, HashSet<AppWidgetAttribute>>() {
protected HashSet<AppWidgetAttribute> doInBackground(Void... unused) { protected HashSet<AppWidgetAttribute> doInBackground(Void... unused) {
// 获取选中笔记对应的小部件信息
HashSet<AppWidgetAttribute> widgets = mNotesListAdapter.getSelectedWidget(); HashSet<AppWidgetAttribute> widgets = mNotesListAdapter.getSelectedWidget();
if (!isSyncMode()) { if (!isSyncMode()) {
// 如果不是同步模式，则直接删除选中的笔记
// if not synced, delete notes directly // if not synced, delete notes directly
if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter if (DataUtils.batchDeleteNotes(mContentResolver, mNotesListAdapter
.getSelectedItemIds())) { .getSelectedItemIds())) {
@ -538,7 +549,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
} }
} }
} }
// 打开笔记详情界面
private void openNode(NoteItemData data) { private void openNode(NoteItemData data) {
Intent intent = new Intent(this, NoteEditActivity.class); Intent intent = new Intent(this, NoteEditActivity.class);
intent.setAction(Intent.ACTION_VIEW); intent.setAction(Intent.ACTION_VIEW);
@ -547,6 +558,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
} }
private void openFolder(NoteItemData data) { private void openFolder(NoteItemData data) {
// 更新当前文件夹id，并进行异步查询笔记列表
mCurrentFolderId = data.getId(); mCurrentFolderId = data.getId();
startAsyncNotesListQuery(); startAsyncNotesListQuery();
if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) {
@ -566,85 +578,88 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
public void onClick(View v) { public void onClick(View v) {
switch (v.getId()) { switch (v.getId()) {
case R.id.btn_new_note: case R.id.btn_new_note:
// 点击新建笔记按钮，触发创建新的笔记操作
createNewNote(); createNewNote();
break; break;
default: default:
break; break;
} }
} }
// 显示输入法软键盘
private void showSoftInput() { private void showSoftInput() {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
if (inputMethodManager != null) { if (inputMethodManager != null) {
inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
} }
} }
// 隐藏输入法软键盘
private void hideSoftInput(View view) { private void hideSoftInput(View view) {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);
} }
//显示创建或修改文件夹的对话框
private void showCreateOrModifyFolderDialog(final boolean create) { private void showCreateOrModifyFolderDialog(final boolean create) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this); final AlertDialog.Builder builder = new AlertDialog.Builder(this);// 创建对话框构建器
View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null); View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null);//加载布局文件
final EditText etName = (EditText) view.findViewById(R.id.et_foler_name); final EditText etName = (EditText) view.findViewById(R.id.et_foler_name);// 获取输入框
showSoftInput(); showSoftInput();// 显示软键盘
if (!create) { if (!create) { // 如果是修改文件夹
if (mFocusNoteDataItem != null) { if (mFocusNoteDataItem != null) { // 如果有选中的文件夹
etName.setText(mFocusNoteDataItem.getSnippet()); etName.setText(mFocusNoteDataItem.getSnippet()); // 设置输入框文字为文件夹名称
builder.setTitle(getString(R.string.menu_folder_change_name)); builder.setTitle(getString(R.string.menu_folder_change_name)); // 设置对话框标题为"更改文件夹名称"
} else { } else {
Log.e(TAG, "The long click data item is null"); Log.e(TAG, "The long click data item is null"); // 输出错误日志
return; return;
} }
} else { } else { // 如果是创建文件夹
etName.setText(""); etName.setText(""); // 清空输入框
builder.setTitle(this.getString(R.string.menu_create_folder)); builder.setTitle(this.getString(R.string.menu_create_folder)); // 设置对话框标题为"创建文件夹"
} }
builder.setPositiveButton(android.R.string.ok, null); builder.setPositiveButton(android.R.string.ok, null); // 设置确定按钮，暂不处理点击事件
builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) { public void onClick(DialogInterface dialog, int which) {
hideSoftInput(etName); hideSoftInput(etName); // 隐藏软键盘
} }
}); }); // 设置取消按钮，点击时隐藏软键盘
final Dialog dialog = builder.setView(view).show(); final Dialog dialog = builder.setView(view).show(); // 创建对话框并显示
final Button positive = (Button)dialog.findViewById(android.R.id.button1); final Button positive = (Button)dialog.findViewById(android.R.id.button1); // 获取确定按钮
positive.setOnClickListener(new OnClickListener() { positive.setOnClickListener(new OnClickListener() {
public void onClick(View v) { public void onClick(View v) {
hideSoftInput(etName); hideSoftInput(etName); // 隐藏软键盘
String name = etName.getText().toString(); String name = etName.getText().toString(); // 获取输入的文件夹名称
if (DataUtils.checkVisibleFolderName(mContentResolver, name)) {
if (DataUtils.checkVisibleFolderName(mContentResolver, name)) { // 检查文件夹名称是否可见
Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name), Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name),
Toast.LENGTH_LONG).show(); Toast.LENGTH_LONG).show(); // 显示提示信息，文件夹已存在
etName.setSelection(0, etName.length()); etName.setSelection(0, etName.length()); // 选中输入框中的文字
return; return;
} }
if (!create) {
if (!TextUtils.isEmpty(name)) { if (!create) { // 如果是修改文件夹
if (!TextUtils.isEmpty(name)) { // 如果文件夹名称不为空
ContentValues values = new ContentValues(); ContentValues values = new ContentValues();
values.put(NoteColumns.SNIPPET, name); values.put(NoteColumns.SNIPPET, name); // 更新文件夹名称
values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); // 设置类型为文件夹
values.put(NoteColumns.LOCAL_MODIFIED, 1); values.put(NoteColumns.LOCAL_MODIFIED, 1); // 标记本地修改
mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID
+ "=?", new String[] { + "=?", new String[] {
String.valueOf(mFocusNoteDataItem.getId()) String.valueOf(mFocusNoteDataItem.getId())
}); }); // 更新数据库中的文件夹信息
} }
} else if (!TextUtils.isEmpty(name)) { } else if (!TextUtils.isEmpty(name)) { // 如果是创建文件夹且文件夹名称不为空
ContentValues values = new ContentValues(); ContentValues values = new ContentValues();
values.put(NoteColumns.SNIPPET, name); values.put(NoteColumns.SNIPPET, name); // 设置文件夹名称
values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); // 设置类型为文件夹
mContentResolver.insert(Notes.CONTENT_NOTE_URI, values); mContentResolver.insert(Notes.CONTENT_NOTE_URI, values); // 插入数据库中
} }
dialog.dismiss();
dialog.dismiss(); // 关闭对话框
} }
}); });
if (TextUtils.isEmpty(etName.getText())) { // 如果输入框内容为空
if (TextUtils.isEmpty(etName.getText())) { positive.setEnabled(false); // 禁用确定按钮
positive.setEnabled(false);
} }
/** /**
* When the name edit text is null, disable the positive button * When the name edit text is null, disable the positive button
@ -784,54 +799,55 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override @Override
public boolean onPrepareOptionsMenu(Menu menu) { public boolean onPrepareOptionsMenu(Menu menu) {
menu.clear(); menu.clear();
if (mState == ListEditState.NOTE_LIST) { if (mState == ListEditState.NOTE_LIST) { // 如果当前状态是便签列表
getMenuInflater().inflate(R.menu.note_list, menu); getMenuInflater().inflate(R.menu.note_list, menu); // 加载便签列表的菜单布局
// set sync or sync_cancel // 设置同步或取消同步选项的标题
menu.findItem(R.id.menu_sync).setTitle( menu.findItem(R.id.menu_sync).setTitle(
GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync); GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync);
} else if (mState == ListEditState.SUB_FOLDER) { } else if (mState == ListEditState.SUB_FOLDER) { // 如果当前状态是子文件夹
getMenuInflater().inflate(R.menu.sub_folder, menu); getMenuInflater().inflate(R.menu.sub_folder, menu); // 加载子文件夹的菜单布局
} else if (mState == ListEditState.CALL_RECORD_FOLDER) { } else if (mState == ListEditState.CALL_RECORD_FOLDER) { // 如果当前状态是通话记录文件夹
getMenuInflater().inflate(R.menu.call_record_folder, menu); getMenuInflater().inflate(R.menu.call_record_folder, menu); // 加载通话记录文件夹的菜单布局
} else { } else {
Log.e(TAG, "Wrong state:" + mState); Log.e(TAG, "Wrong state:" + mState); // 如果状态不匹配，则输出错误日志
} }
return true; return true;
} }
@Override @Override
public boolean onOptionsItemSelected(MenuItem item) { public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) { switch (item.getItemId()) {
case R.id.menu_new_folder: { case R.id.menu_new_folder: { // 如果选择了新建文件夹选项
showCreateOrModifyFolderDialog(true); showCreateOrModifyFolderDialog(true); // 显示创建或修改文件夹对话框
break; break;
} }
case R.id.menu_export_text: { case R.id.menu_export_text: { // 如果选择了导出文本选项
exportNoteToText(); exportNoteToText(); // 导出便签到文本
break; break;
} }
case R.id.menu_sync: { case R.id.menu_sync: { // 如果选择了同步选项
if (isSyncMode()) { if (isSyncMode()) { // 如果处于同步模式
if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) { if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) {
GTaskSyncService.startSync(this); GTaskSyncService.startSync(this); // 启动同步服务
} else { } else {
GTaskSyncService.cancelSync(this); GTaskSyncService.cancelSync(this); // 取消同步服务
} }
} else { } else {
startPreferenceActivity(); startPreferenceActivity(); // 跳转到设置界面
} }
break; break;
} }
case R.id.menu_setting: { case R.id.menu_setting: { // 如果选择了设置选项
startPreferenceActivity(); startPreferenceActivity(); // 跳转到设置界面
break; break;
} }
case R.id.menu_new_note: { case R.id.menu_new_note: { // 如果选择了新建便签选项
createNewNote(); createNewNote(); // 创建新的便签
break; break;
} }
case R.id.menu_search: case R.id.menu_search:
onSearchRequested(); onSearchRequested(); // 执行搜索操作
break; break;
default: default:
break; break;
@ -858,34 +874,34 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
@Override @Override
protected Integer doInBackground(Void... unused) { protected Integer doInBackground(Void... unused) {
return backup.exportToText(); return backup.exportToText(); // 调用备份工具类的导出便签到文本方法
} }
@Override @Override
protected void onPostExecute(Integer result) { protected void onPostExecute(Integer result) {
if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { // 如果SD卡未挂载
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(NotesListActivity.this builder.setTitle(NotesListActivity.this
.getString(R.string.failed_sdcard_export)); .getString(R.string.failed_sdcard_export)); // 设置对话框标题为导出失败
builder.setMessage(NotesListActivity.this builder.setMessage(NotesListActivity.this
.getString(R.string.error_sdcard_unmounted)); .getString(R.string.error_sdcard_unmounted)); // 设置对话框内容为SD卡未挂载
builder.setPositiveButton(android.R.string.ok, null); builder.setPositiveButton(android.R.string.ok, null);
builder.show(); builder.show();
} else if (result == BackupUtils.STATE_SUCCESS) { } else if (result == BackupUtils.STATE_SUCCESS) { // 如果导出成功
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(NotesListActivity.this builder.setTitle(NotesListActivity.this
.getString(R.string.success_sdcard_export)); .getString(R.string.success_sdcard_export)); // 设置对话框标题为导出成功
builder.setMessage(NotesListActivity.this.getString( builder.setMessage(NotesListActivity.this.getString(
R.string.format_exported_file_location, backup R.string.format_exported_file_location, backup
.getExportedTextFileName(), backup.getExportedTextFileDir())); .getExportedTextFileName(), backup.getExportedTextFileDir())); // 设置对话框内容为导出文件的位置
builder.setPositiveButton(android.R.string.ok, null); builder.setPositiveButton(android.R.string.ok, null);
builder.show(); builder.show();
} else if (result == BackupUtils.STATE_SYSTEM_ERROR) { } else if (result == BackupUtils.STATE_SYSTEM_ERROR) { // 如果系统错误
AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this);
builder.setTitle(NotesListActivity.this builder.setTitle(NotesListActivity.this
.getString(R.string.failed_sdcard_export)); .getString(R.string.failed_sdcard_export)); // 设置对话框标题为导出失败
builder.setMessage(NotesListActivity.this builder.setMessage(NotesListActivity.this
.getString(R.string.error_sdcard_export)); .getString(R.string.error_sdcard_export)); // 设置对话框内容为导出错误
builder.setPositiveButton(android.R.string.ok, null); builder.setPositiveButton(android.R.string.ok, null);
builder.show(); builder.show();
} }
@ -919,12 +935,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
public void onItemClick(AdapterView<?> parent, View view, int position, long id) { public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (view instanceof NotesListItem) { if (view instanceof NotesListItem) {
NoteItemData item = ((NotesListItem) view).getItemData(); NoteItemData item = ((NotesListItem) view).getItemData(); // 获取点击项的数据
if (mNotesListAdapter.isInChoiceMode()) { if (mNotesListAdapter.isInChoiceMode()) { // 如果处于选择模式
if (item.getType() == Notes.TYPE_NOTE) { if (item.getType() == Notes.TYPE_NOTE) {
position = position - mNotesListView.getHeaderViewsCount(); position = position - mNotesListView.getHeaderViewsCount();
mModeCallBack.onItemCheckedStateChanged(null, position, id, mModeCallBack.onItemCheckedStateChanged(null, position, id,
!mNotesListAdapter.isSelectedItem(position)); !mNotesListAdapter.isSelectedItem(position)); // 更新选择状态
} }
return; return;
} }
@ -933,9 +949,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
case NOTE_LIST: case NOTE_LIST:
if (item.getType() == Notes.TYPE_FOLDER if (item.getType() == Notes.TYPE_FOLDER
|| item.getType() == Notes.TYPE_SYSTEM) { || item.getType() == Notes.TYPE_SYSTEM) {
openFolder(item); openFolder(item); // 打开文件夹
} else if (item.getType() == Notes.TYPE_NOTE) { } else if (item.getType() == Notes.TYPE_NOTE) {
openNode(item); openNode(item); // 打开便签
} else { } else {
Log.e(TAG, "Wrong note type in NOTE_LIST"); Log.e(TAG, "Wrong note type in NOTE_LIST");
} }
@ -943,7 +959,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
case SUB_FOLDER: case SUB_FOLDER:
case CALL_RECORD_FOLDER: case CALL_RECORD_FOLDER:
if (item.getType() == Notes.TYPE_NOTE) { if (item.getType() == Notes.TYPE_NOTE) {
openNode(item); openNode(item); // 打开便签
} else { } else {
Log.e(TAG, "Wrong note type in SUB_FOLDER"); Log.e(TAG, "Wrong note type in SUB_FOLDER");
} }
@ -985,16 +1001,16 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
*/ */
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) { public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
if (view instanceof NotesListItem) { if (view instanceof NotesListItem) {
mFocusNoteDataItem = ((NotesListItem) view).getItemData(); mFocusNoteDataItem = ((NotesListItem) view).getItemData();// 获取当前长按项的数据
if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) { if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) {
if (mNotesListView.startActionMode(mModeCallBack) != null) { if (mNotesListView.startActionMode(mModeCallBack) != null) {
mModeCallBack.onItemCheckedStateChanged(null, position, id, true); mModeCallBack.onItemCheckedStateChanged(null, position, id, true);// 更改选择状态
mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
} else { } else {
Log.e(TAG, "startActionMode fails"); Log.e(TAG, "startActionMode fails");
} }
} else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) { } else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) {
mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener); mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener);// 设置创建上下文菜单监听器
} }
} }
return false; return false;

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