/* * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ //定义包名 package net.micode.notes.ui; // 导入所需的Android类库和其他包中的类 import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.appwidget.AppWidgetManager; import android.content.AsyncQueryHandler; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.database.Cursor; import android.os.AsyncTask; import android.os.Bundle; import android.preference.PreferenceManager; import android.text.Editable; import android.text.TextUtils; import android.text.TextWatcher; import android.util.Log; import android.view.ActionMode; import android.view.ContextMenu; import android.view.ContextMenu.ContextMenuInfo; import android.view.Display; import android.view.HapticFeedbackConstants; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MenuItem.OnMenuItemClickListener; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnCreateContextMenuListener; import android.view.View.OnTouchListener; import android.view.inputmethod.InputMethodManager; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.AdapterView.OnItemLongClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.PopupMenu; import android.widget.TextView; import android.widget.Toast; import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.gtask.remote.GTaskSyncService; import net.micode.notes.model.WorkingNote; import net.micode.notes.tool.BackupUtils; import net.micode.notes.tool.DataUtils; import net.micode.notes.tool.ResourceParser; import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; import net.micode.notes.widget.NoteWidgetProvider_2x; import net.micode.notes.widget.NoteWidgetProvider_4x; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.HashSet; public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { // 定义一些常量，用于标识不同的查询令牌和菜单项 private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; // 文件夹内笔记列表查询的令牌 private static final int FOLDER_LIST_QUERY_TOKEN = 1; // 文件夹列表查询的令牌 // 定义菜单项的标识符 private static final int MENU_FOLDER_DELETE = 0; // 菜单项：删除文件夹 private static final int MENU_FOLDER_VIEW = 1; // 菜单项：查看文件夹 private static final int MENU_FOLDER_CHANGE_NAME = 2; // 菜单项：更改文件夹名称 // 定义SharedPreferences的键，用于存储是否添加了介绍信息 private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; // 定义一个枚举，表示列表编辑状态 private enum ListEditState { NOTE_LIST, // 笔记列表 SUB_FOLDER, // 子文件夹 CALL_RECORD_FOLDER // 通话记录文件夹 }; // 定义一个变量，存储当前的列表编辑状态 private ListEditState mState; // 定义一个后台查询处理器，用于异步查询数据 private BackgroundQueryHandler mBackgroundQueryHandler; // 定义一个适配器，用于管理笔记列表的显示 private NotesListAdapter mNotesListAdapter; // 定义一个ListView，用于显示笔记列表 private ListView mNotesListView; // 定义一个按钮，用于添加新的笔记 private Button mAddNewNote; // 定义一个布尔变量，表示是否分发触摸事件 private boolean mDispatch; // 定义变量，存储触摸事件的原始Y坐标 private int mOriginY; // 定义变量，存储触摸事件分发的Y坐标 private int mDispatchY; // 定义一个TextView，用于显示标题栏 private TextView mTitleBar; // 定义一个变量，存储当前文件夹的ID private long mCurrentFolderId; // 定义一个ContentResolver，用于访问内容提供者 private ContentResolver mContentResolver; // 定义一个回调，用于处理ActionMode事件 private ModeCallback mModeCallBack; // 定义一个静态常量，用于日志标签 private static final String TAG = "NotesListActivity"; // 定义一个常量，表示笔记列表滚动速率 public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; // 定义一个变量，存储当前聚焦的笔记数据项 private NoteItemData mFocusNoteDataItem; // 定义一个常量，表示普通查询的选择条件 private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?"; // 定义一个常量，表示根文件夹查询的选择条件 private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>" + Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR (" + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND " + NoteColumns.NOTES_COUNT + ">0)"; // 定义静态常量，表示请求代码，用于打开节点和新建节点 private final static int REQUEST_CODE_OPEN_NODE = 102; private final static int REQUEST_CODE_NEW_NODE = 103; // 重写Activity的onCreate方法，该方法在Activity创建时被调用 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // 调用父类的onCreate方法 setContentView(R.layout.note_list); // 设置Activity的布局文件 initResources(); // 初始化资源 /** * 当用户首次使用此应用程序时，插入一个介绍 */ setAppInfoFromRawRes(); // 从原始资源设置应用程序信息 } // 重写Activity的onActivityResult方法，该方法在启动的Activity返回结果时被调用 @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // 检查返回的结果是否为RESULT_OK，并且请求代码是打开节点或新建节点 if (resultCode == RESULT_OK && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) { // 如果是，则更新笔记列表的Cursor mNotesListAdapter.changeCursor(null); } else { // 否则，调用父类的onActivityResult方法 super.onActivityResult(requestCode, resultCode, data); } } // 从原始资源设置应用程序信息的私有方法 private void setAppInfoFromRawRes() { // 获取SharedPreferences实例 SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); // 检查是否已经添加了介绍信息 if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) { StringBuilder sb = new StringBuilder(); // 创建一个StringBuilder用于构建字符串 InputStream in = null; // 声明一个输入流变量 try { // 打开原始资源文件 in = getResources().openRawResource(R.raw.introduction); if (in != null) { // 如果输入流不为空，则读取文件内容 InputStreamReader isr = new InputStreamReader(in); BufferedReader br = new BufferedReader(isr); char[] buf = new char[1024]; // 创建一个字符数组作为缓冲区 int len = 0; // 用于存储读取的字符数 while ((len = br.read(buf)) > 0) { // 循环读取直到文件结束 sb.append(buf, 0, len); // 将读取的内容追加到StringBuilder } } else { // 如果输入流为空，记录错误日志并返回 Log.e(TAG, "Read introduction file error"); return; } } catch (IOException e) { // 捕获并打印异常堆栈信息 e.printStackTrace(); return; } finally { // 在finally块中关闭输入流 if (in != null) { try { in.close(); // 关闭输入流 } catch (IOException e) { // 捕获并打印异常堆栈信息 e.printStackTrace(); } } } // 创建一个空的笔记对象 WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER, AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE, ResourceParser.RED); note.setWorkingText(sb.toString()); // 设置笔记内容为读取的介绍信息 // 保存笔记并更新SharedPreferences if (note.saveNote()) { sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit(); } else { // 如果保存失败，记录错误日志并返回 Log.e(TAG, "Save introduction note error"); return; } } } // 重写Activity的onStart方法，该方法在Activity开始时被调用 @Override protected void onStart() { super.onStart(); // 调用父类的onStart方法 startAsyncNotesListQuery(); // 开始异步查询笔记列表 } // 初始化资源的私有方法 private void initResources() { // 获取ContentResolver实例，用于与内容提供者交互 mContentResolver = this.getContentResolver(); // 创建BackgroundQueryHandler实例，用于在后台线程中执行查询操作 mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); // 设置当前文件夹ID为根文件夹ID mCurrentFolderId = Notes.ID_ROOT_FOLDER; // 通过ID找到ListView组件 mNotesListView = (ListView) findViewById(R.id.notes_list); // 向ListView添加一个Footer视图 mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), null, false); // 设置ListView的item点击监听器 mNotesListView.setOnItemClickListener(new OnListItemClickListener()); // 设置ListView的item长按监听器 mNotesListView.setOnItemLongClickListener(this); // 创建NotesListAdapter实例，用于ListView的数据适配 mNotesListAdapter = new NotesListAdapter(this); // 设置ListView的适配器 mNotesListView.setAdapter(mNotesListAdapter); // 通过ID找到添加新笔记的按钮 mAddNewNote = (Button) findViewById(R.id.btn_new_note); // 设置按钮的点击监听器 mAddNewNote.setOnClickListener(this); // 设置按钮的触摸监听器 mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); // 初始化一些标志位和坐标值 mDispatch = false; mDispatchY = 0; mOriginY = 0; // 通过ID找到标题栏的TextView mTitleBar = (TextView) findViewById(R.id.tv_title_bar); // 设置列表编辑状态为NOTE_LIST mState = ListEditState.NOTE_LIST; // 创建ModeCallback实例，用于处理多选模式 mModeCallBack = new ModeCallback(); } // ModeCallback内部类，实现了ListView.MultiChoiceModeListener和OnMenuItemClickListener接口 private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener { private DropdownMenu mDropDownMenu; // 下拉菜单 private ActionMode mActionMode; // 动作模式 private MenuItem mMoveMenu; // 移动菜单项 // 创建动作模式时调用 public boolean onCreateActionMode(ActionMode mode, Menu menu) { // 加载菜单资源 getMenuInflater().inflate(R.menu.note_list_options, menu); // 设置删除菜单项的点击监听器 menu.findItem(R.id.delete).setOnMenuItemClickListener(this); // 获取移动菜单项 mMoveMenu = menu.findItem(R.id.move); // 根据条件设置移动菜单项的可见性 if (mFocusNoteDataItem.getParentId() == Notes.ID_CALL_RECORD_FOLDER || DataUtils.getUserFolderCount(mContentResolver) == 0) { mMoveMenu.setVisible(false); } else { mMoveMenu.setVisible(true); mMoveMenu.setOnMenuItemClickListener(this); } // 保存动作模式实例 mActionMode = mode; // 设置适配器的选择模式 mNotesListAdapter.setChoiceMode(true); // 设置ListView不可长按 mNotesListView.setLongClickable(false); // 隐藏添加新笔记按钮 mAddNewNote.setVisibility(View.GONE); // 加载自定义视图 View customView = LayoutInflater.from(NotesListActivity.this).inflate( R.layout.note_list_dropdown_menu, null); // 设置动作模式的自定义视图 mode.setCustomView(customView); // 创建下拉菜单实例 mDropDownMenu = new DropdownMenu(NotesListActivity.this, (Button) customView.findViewById(R.id.selection_menu), R.menu.note_list_dropdown); // 设置下拉菜单项的点击监听器 mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){ public boolean onMenuItemClick(MenuItem item) { // 切换选择所有笔记的状态 mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); updateMenu(); // 更新菜单 return true; } }); return true; // 表示动作模式已创建 } // 更新菜单的方法 private void updateMenu() { // 获取适配器中已选择的笔记数量 int selectedCount = mNotesListAdapter.getSelectedCount(); // 使用资源字符串和已选择的笔记数量来格式化下拉菜单的标题 String format = getResources().getString(R.string.menu_select_title, selectedCount); // 设置下拉菜单的标题 mDropDownMenu.setTitle(format); // 获取下拉菜单中的“选择所有”菜单项 MenuItem item = mDropDownMenu.findItem(R.id.action_select_all); // 如果菜单项存在 if (item != null) { // 如果所有笔记都已选中 if (mNotesListAdapter.isAllSelected()) { // 设置菜单项为选中状态 item.setChecked(true); // 更新菜单项标题为“取消全选” item.setTitle(R.string.menu_deselect_all); } else { // 设置菜单项为未选中状态 item.setChecked(false); // 更新菜单项标题为“全选” item.setTitle(R.string.menu_select_all); } } } // 这是ActionMode.Callback接口的实现，用于处理上下文操作模式（Contextual Action Mode）中的各种事件。 // 当准备ActionMode时调用此方法，可以在此方法中初始化菜单。 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { // 该方法目前未实现具体功能，返回false表示不处理菜单。 return false; } // 当ActionMode中的菜单项被点击时调用此方法。 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { // 该方法目前未实现具体功能，返回false表示不处理点击事件。 return false; } // 当ActionMode结束时调用此方法，可以进行清理工作。 public void onDestroyActionMode(ActionMode mode) { // 关闭列表适配器的选择模式。 mNotesListAdapter.setChoiceMode(false); // 设置列表视图可长按。 mNotesListView.setLongClickable(true); // 显示添加新笔记的视图。 mAddNewNote.setVisibility(View.VISIBLE); } // 结束当前的ActionMode。 public void finishActionMode() { // 调用ActionMode的finish方法来结束模式。 mActionMode.finish(); } // 当列表项的选中状态改变时调用此方法。 public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) { // 更新列表适配器中指定位置的选中状态。 mNotesListAdapter.setCheckedItem(position, checked); // 更新菜单。 updateMenu(); } // 当菜单项被点击时调用此方法。 public boolean onMenuItemClick(MenuItem item) { // 如果没有选中任何项，显示提示信息并返回true表示已处理点击事件。 if (mNotesListAdapter.getSelectedCount() == 0) { Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), Toast.LENGTH_SHORT).show(); return true; } // 根据菜单项的ID处理不同的点击事件。 switch (item.getItemId()) { case R.id.delete: // 构建一个对话框，提示用户是否删除选中的笔记。 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) { // 如果用户确认删除，则调用批量删除方法。 batchDelete(); } }); builder.setNegativeButton(android.R.string.cancel, null); builder.show(); break; case R.id.move: // 启动查询目标文件夹的操作。 startQueryDestinationFolders(); break; default: // 如果不是已知的菜单项，返回false表示未处理点击事件。 return false; } // 返回true表示已处理点击事件。 return true; } } private class NewNoteOnTouchListener implements OnTouchListener { public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: { Display display = getWindowManager().getDefaultDisplay(); int screenHeight = display.getHeight(); int newNoteViewHeight = mAddNewNote.getHeight(); int start = screenHeight - newNoteViewHeight; int eventY = start + (int) event.getY(); /** * Minus TitleBar's height */ if (mState == ListEditState.SUB_FOLDER) { eventY -= mTitleBar.getHeight(); start -= mTitleBar.getHeight(); } /** * HACKME:When click the transparent part of "New Note" button, dispatch * the event to the list view behind this button. The transparent part of * "New Note" button could be expressed by formula y=-0.12x+94（Unit:pixel） * and the line top of the button. The coordinate based on left of the "New * Note" button. The 94 represents maximum height of the transparent part. * Notice that, if the background of the button changes, the formula should * also change. This is very bad, just for the UI designer's strong requirement. */ if (event.getY() < (event.getX() * (-0.12) + 94)) { View view = mNotesListView.getChildAt(mNotesListView.getChildCount() - 1 - mNotesListView.getFooterViewsCount()); if (view != null && view.getBottom() > start && (view.getTop() < (start + 94))) { mOriginY = (int) event.getY(); mDispatchY = eventY; event.setLocation(event.getX(), mDispatchY); mDispatch = true; return mNotesListView.dispatchTouchEvent(event); } } break; } case MotionEvent.ACTION_MOVE: { if (mDispatch) { mDispatchY += (int) event.getY() - mOriginY; event.setLocation(event.getX(), mDispatchY); return mNotesListView.dispatchTouchEvent(event); } break; } default: { if (mDispatch) { event.setLocation(event.getX(), mDispatchY); mDispatch = false; return mNotesListView.dispatchTouchEvent(event); } break; } } return false; } }; private void startAsyncNotesListQuery() { String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION : NORMAL_SELECTION; mBackgroundQueryHandler.startQuery(FOLDER_NOTE_LIST_QUERY_TOKEN, null, Notes.CONTENT_NOTE_URI, NoteItemData.PROJECTION, selection, new String[] { String.valueOf(mCurrentFolderId) }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); } private final class BackgroundQueryHandler extends AsyncQueryHandler { public BackgroundQueryHandler(ContentResolver contentResolver) { super(contentResolver); } @Override protected void onQueryComplete(int token, Object cookie, Cursor cursor) { switch (token) { case FOLDER_NOTE_LIST_QUERY_TOKEN: mNotesListAdapter.changeCursor(cursor); break; case FOLDER_LIST_QUERY_TOKEN: if (cursor != null && cursor.getCount() > 0) { showFolderListMenu(cursor); } else { Log.e(TAG, "Query folder failed"); } break; default: return; } } } private void showFolderListMenu(Cursor cursor) { 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) { DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which)); Toast.makeText( NotesListActivity.this, getString(R.string.format_move_notes_to_folder, mNotesListAdapter.getSelectedCount(), adapter.getFolderName(NotesListActivity.this, which)), Toast.LENGTH_SHORT).show(); mModeCallBack.finishActionMode(); } }); builder.show(); } private void createNewNote() { Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_INSERT_OR_EDIT); intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId); this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE); } private void batchDelete() { new AsyncTask>() { protected HashSet doInBackground(Void... unused) { HashSet widgets = mNotesListAdapter.getSelectedWidget(); if (!isSyncMode()) { // if not synced, delete notes directly 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 if (!DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter .getSelectedItemIds(), Notes.ID_TRASH_FOLER)) { Log.e(TAG, "Move notes to trash folder error, should not happens"); } } return widgets; } @Override protected void onPostExecute(HashSet widgets) { if (widgets != null) { for (AppWidgetAttribute widget : widgets) { if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { updateWidget(widget.widgetId, widget.widgetType); } } } mModeCallBack.finishActionMode(); } }.execute(); } private void deleteFolder(long folderId) { if (folderId == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Wrong folder id, should not happen " + folderId); return; } HashSet ids = new HashSet(); ids.add(folderId); HashSet widgets = DataUtils.getFolderNoteWidget(mContentResolver, folderId); if (!isSyncMode()) { // if not synced, delete folder directly DataUtils.batchDeleteNotes(mContentResolver, ids); } else { // in sync mode, we'll move the deleted folder into the trash folder DataUtils.batchMoveToFolder(mContentResolver, ids, Notes.ID_TRASH_FOLER); } if (widgets != null) { for (AppWidgetAttribute widget : widgets) { if (widget.widgetId != AppWidgetManager.INVALID_APPWIDGET_ID && widget.widgetType != Notes.TYPE_WIDGET_INVALIDE) { updateWidget(widget.widgetId, widget.widgetType); } } } } private void openNode(NoteItemData data) { Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_VIEW); intent.putExtra(Intent.EXTRA_UID, data.getId()); this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE); } private void openFolder(NoteItemData data) { mCurrentFolderId = data.getId(); startAsyncNotesListQuery(); if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { mState = ListEditState.CALL_RECORD_FOLDER; mAddNewNote.setVisibility(View.GONE); } else { mState = ListEditState.SUB_FOLDER; } if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { mTitleBar.setText(R.string.call_record_folder_name); } else { mTitleBar.setText(data.getSnippet()); } mTitleBar.setVisibility(View.VISIBLE); } public void onClick(View v) { switch (v.getId()) { case R.id.btn_new_note: createNewNote(); break; default: break; } } private void showSoftInput() { InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); if (inputMethodManager != null) { inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); } } private void hideSoftInput(View view) { InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); } private void showCreateOrModifyFolderDialog(final boolean create) { final AlertDialog.Builder builder = new AlertDialog.Builder(this); View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null); final EditText etName = (EditText) view.findViewById(R.id.et_foler_name); showSoftInput(); if (!create) { if (mFocusNoteDataItem != null) { etName.setText(mFocusNoteDataItem.getSnippet()); builder.setTitle(getString(R.string.menu_folder_change_name)); } else { Log.e(TAG, "The long click data item is null"); return; } } else { etName.setText(""); builder.setTitle(this.getString(R.string.menu_create_folder)); } builder.setPositiveButton(android.R.string.ok, null); builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { hideSoftInput(etName); } }); final Dialog dialog = builder.setView(view).show(); final Button positive = (Button)dialog.findViewById(android.R.id.button1); positive.setOnClickListener(new OnClickListener() { public void onClick(View v) { hideSoftInput(etName); String name = etName.getText().toString(); if (DataUtils.checkVisibleFolderName(mContentResolver, name)) { Toast.makeText(NotesListActivity.this, getString(R.string.folder_exist, name), Toast.LENGTH_LONG).show(); etName.setSelection(0, etName.length()); return; } if (!create) { if (!TextUtils.isEmpty(name)) { ContentValues values = new ContentValues(); values.put(NoteColumns.SNIPPET, name); values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); values.put(NoteColumns.LOCAL_MODIFIED, 1); mContentResolver.update(Notes.CONTENT_NOTE_URI, values, NoteColumns.ID + "=?", new String[] { String.valueOf(mFocusNoteDataItem.getId()) }); } } else if (!TextUtils.isEmpty(name)) { ContentValues values = new ContentValues(); values.put(NoteColumns.SNIPPET, name); values.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); mContentResolver.insert(Notes.CONTENT_NOTE_URI, values); } dialog.dismiss(); } }); if (TextUtils.isEmpty(etName.getText())) { positive.setEnabled(false); } /** * When the name edit text is null, disable the positive button */ etName.addTextChangedListener(new TextWatcher() { public void beforeTextChanged(CharSequence s, int start, int count, int after) { // TODO Auto-generated method stub } public void onTextChanged(CharSequence s, int start, int before, int count) { if (TextUtils.isEmpty(etName.getText())) { positive.setEnabled(false); } else { positive.setEnabled(true); } } public void afterTextChanged(Editable s) { // TODO Auto-generated method stub } }); } @Override public void onBackPressed() { switch (mState) { case SUB_FOLDER: mCurrentFolderId = Notes.ID_ROOT_FOLDER; mState = ListEditState.NOTE_LIST; startAsyncNotesListQuery(); mTitleBar.setVisibility(View.GONE); break; case CALL_RECORD_FOLDER: mCurrentFolderId = Notes.ID_ROOT_FOLDER; mState = ListEditState.NOTE_LIST; mAddNewNote.setVisibility(View.VISIBLE); mTitleBar.setVisibility(View.GONE); startAsyncNotesListQuery(); break; case NOTE_LIST: super.onBackPressed(); break; default: break; } } private void updateWidget(int appWidgetId, int appWidgetType) { Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); if (appWidgetType == Notes.TYPE_WIDGET_2X) { intent.setClass(this, NoteWidgetProvider_2x.class); } else if (appWidgetType == Notes.TYPE_WIDGET_4X) { intent.setClass(this, NoteWidgetProvider_4x.class); } else { Log.e(TAG, "Unspported widget type"); return; } intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { appWidgetId }); sendBroadcast(intent); setResult(RESULT_OK, intent); } private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() { public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { if (mFocusNoteDataItem != null) { menu.setHeaderTitle(mFocusNoteDataItem.getSnippet()); menu.add(0, MENU_FOLDER_VIEW, 0, R.string.menu_folder_view); menu.add(0, MENU_FOLDER_DELETE, 0, R.string.menu_folder_delete); menu.add(0, MENU_FOLDER_CHANGE_NAME, 0, R.string.menu_folder_change_name); } } }; @Override public void onContextMenuClosed(Menu menu) { if (mNotesListView != null) { mNotesListView.setOnCreateContextMenuListener(null); } super.onContextMenuClosed(menu); } @Override public boolean onContextItemSelected(MenuItem item) { if (mFocusNoteDataItem == null) { Log.e(TAG, "The long click data item is null"); return false; } switch (item.getItemId()) { case MENU_FOLDER_VIEW: openFolder(mFocusNoteDataItem); break; case MENU_FOLDER_DELETE: AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(getString(R.string.alert_title_delete)); builder.setIcon(android.R.drawable.ic_dialog_alert); builder.setMessage(getString(R.string.alert_message_delete_folder)); builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { deleteFolder(mFocusNoteDataItem.getId()); } }); builder.setNegativeButton(android.R.string.cancel, null); builder.show(); break; case MENU_FOLDER_CHANGE_NAME: showCreateOrModifyFolderDialog(false); break; default: break; } return true; } @Override public boolean onPrepareOptionsMenu(Menu menu) { menu.clear(); if (mState == ListEditState.NOTE_LIST) { getMenuInflater().inflate(R.menu.note_list, menu); // set sync or sync_cancel menu.findItem(R.id.menu_sync).setTitle( GTaskSyncService.isSyncing() ? R.string.menu_sync_cancel : R.string.menu_sync); } else if (mState == ListEditState.SUB_FOLDER) { getMenuInflater().inflate(R.menu.sub_folder, menu); } else if (mState == ListEditState.CALL_RECORD_FOLDER) { getMenuInflater().inflate(R.menu.call_record_folder, menu); } else { Log.e(TAG, "Wrong state:" + mState); } return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_new_folder: { showCreateOrModifyFolderDialog(true); break; } case R.id.menu_export_text: { exportNoteToText(); break; } case R.id.menu_sync: { if (isSyncMode()) { if (TextUtils.equals(item.getTitle(), getString(R.string.menu_sync))) { GTaskSyncService.startSync(this); } else { GTaskSyncService.cancelSync(this); } } else { startPreferenceActivity(); } break; } case R.id.menu_setting: { startPreferenceActivity(); break; } case R.id.menu_new_note: { createNewNote(); break; } case R.id.menu_search: onSearchRequested(); break; default: break; } return true; } @Override public boolean onSearchRequested() { startSearch(null, false, null /* appData */, false); return true; } private void exportNoteToText() { final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); new AsyncTask() { @Override protected Integer doInBackground(Void... unused) { return backup.exportToText(); } @Override protected void onPostExecute(Integer result) { if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); builder.setTitle(NotesListActivity.this .getString(R.string.failed_sdcard_export)); builder.setMessage(NotesListActivity.this .getString(R.string.error_sdcard_unmounted)); builder.setPositiveButton(android.R.string.ok, null); builder.show(); } else if (result == BackupUtils.STATE_SUCCESS) { AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); builder.setTitle(NotesListActivity.this .getString(R.string.success_sdcard_export)); builder.setMessage(NotesListActivity.this.getString( R.string.format_exported_file_location, backup .getExportedTextFileName(), backup.getExportedTextFileDir())); builder.setPositiveButton(android.R.string.ok, null); builder.show(); } else if (result == BackupUtils.STATE_SYSTEM_ERROR) { AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); builder.setTitle(NotesListActivity.this .getString(R.string.failed_sdcard_export)); builder.setMessage(NotesListActivity.this .getString(R.string.error_sdcard_export)); builder.setPositiveButton(android.R.string.ok, null); builder.show(); } } }.execute(); } private boolean isSyncMode() { return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; } private void startPreferenceActivity() { Activity from = getParent() != null ? getParent() : this; Intent intent = new Intent(from, NotesPreferenceActivity.class); from.startActivityIfNeeded(intent, -1); } private class OnListItemClickListener implements OnItemClickListener { public void onItemClick(AdapterView parent, View view, int position, long id) { if (view instanceof NotesListItem) { NoteItemData item = ((NotesListItem) view).getItemData(); if (mNotesListAdapter.isInChoiceMode()) { if (item.getType() == Notes.TYPE_NOTE) { position = position - mNotesListView.getHeaderViewsCount(); mModeCallBack.onItemCheckedStateChanged(null, position, id, !mNotesListAdapter.isSelectedItem(position)); } return; } switch (mState) { case NOTE_LIST: if (item.getType() == Notes.TYPE_FOLDER || item.getType() == Notes.TYPE_SYSTEM) { openFolder(item); } else if (item.getType() == Notes.TYPE_NOTE) { openNode(item); } else { Log.e(TAG, "Wrong note type in NOTE_LIST"); } break; case SUB_FOLDER: case CALL_RECORD_FOLDER: if (item.getType() == Notes.TYPE_NOTE) { openNode(item); } else { Log.e(TAG, "Wrong note type in SUB_FOLDER"); } break; default: break; } } } } private void startQueryDestinationFolders() { 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 + ")"; mBackgroundQueryHandler.startQuery(FOLDER_LIST_QUERY_TOKEN, null, Notes.CONTENT_NOTE_URI, FoldersListAdapter.PROJECTION, selection, new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER), String.valueOf(mCurrentFolderId) }, NoteColumns.MODIFIED_DATE + " DESC"); } public boolean onItemLongClick(AdapterView parent, View view, int position, long id) { if (view instanceof NotesListItem) { mFocusNoteDataItem = ((NotesListItem) view).getItemData(); if (mFocusNoteDataItem.getType() == Notes.TYPE_NOTE && !mNotesListAdapter.isInChoiceMode()) { if (mNotesListView.startActionMode(mModeCallBack) != null) { mModeCallBack.onItemCheckedStateChanged(null, position, id, true); mNotesListView.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); } else { Log.e(TAG, "startActionMode fails"); } } else if (mFocusNoteDataItem.getType() == Notes.TYPE_FOLDER) { mNotesListView.setOnCreateContextMenuListener(mFolderOnCreateContextMenuListener); } } return false; } }