/* * 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. */ package net.micode.notes.ui; import android.app.Activity; import android.app.AlarmManager; import android.app.AlertDialog; import android.app.PendingIntent; import android.app.SearchManager; import android.appwidget.AppWidgetManager; import android.content.ContentUris; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.Paint; import android.os.Bundle; import android.preference.PreferenceManager; import android.text.Spannable; import android.text.SpannableString; import android.text.TextUtils; import android.text.format.DateUtils; import android.text.style.BackgroundColorSpan; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.WindowManager; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; 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.TextNote; import net.micode.notes.model.WorkingNote; import net.micode.notes.model.WorkingNote.NoteSettingChangedListener; import net.micode.notes.tool.DataUtils; import net.micode.notes.tool.ResourceParser; import net.micode.notes.tool.ResourceParser.TextAppearanceResources; import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener; import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener; import net.micode.notes.widget.NoteWidgetProvider_2x; import net.micode.notes.widget.NoteWidgetProvider_4x; import java.util.HashMap; import java.util.HashSet; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; public class NoteEditActivity extends Activity implements OnClickListener, NoteSettingChangedListener, OnTextViewChangeListener { private class HeadViewHolder { public TextView tvModified; public ImageView ivAlertIcon; public TextView tvAlertDate; public ImageView ibSetBgColor; } private static final Map sBgSelectorBtnsMap = new HashMap();//将小米便签的背景颜色映射成一个个值 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); } private static final Map sBgSelectorSelectionMap = new HashMap();//将映射的颜色在反射为小米便签对应颜色的一个值 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); } private static final Map sFontSizeBtnsMap = new HashMap();//将字体大小映射为一个值 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); } private static final Map sFontSelectorSelectionMap = new HashMap();//将映射的值重新反射为字体大小对应的值 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); } private static final String TAG = "NoteEditActivity"; private HeadViewHolder mNoteHeaderHolder; private View mHeadViewPanel; private View mNoteBgColorSelector; private View mFontSizeSelector; private EditText mNoteEditor; private View mNoteEditorPanel; private WorkingNote mWorkingNote; private SharedPreferences mSharedPrefs; private int mFontSizeId; private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; public static final String TAG_CHECKED = String.valueOf('\u221A'); public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); private LinearLayout mEditTextList; private String mUserQuery; private Pattern mPattern; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);//执行父类的初始化操作 this.setContentView(R.layout.note_edit);//将布局文件node_edit加载到activity中，并设置为当前的试图 if (savedInstanceState == null && !initActivityState(getIntent())) {//初始化失败 finish(); return; } initResources();//进行资源的初始化和加载 } /** * Current activity may be killed when the memory is low. Once it is killed, for another time * user load this activity, we should restore the former state */ @Override protected void onRestoreInstanceState(Bundle savedInstanceState) {//回复Activities的状态 super.onRestoreInstanceState(savedInstanceState); if (savedInstanceState != null && savedInstanceState.containsKey(Intent.EXTRA_UID)) {//是否包含Intent.EXTRA_UID，如果包含则重新恢复 Intent intent = new Intent(Intent.ACTION_VIEW);//创建新的对象并显示出来 intent.putExtra(Intent.EXTRA_UID, savedInstanceState.getLong(Intent.EXTRA_UID));//把之前的数据加载到该intent上面来 if (!initActivityState(intent)) {//如果不存在 finish(); return; } Log.d(TAG, "Restoring from killed activity");//状态恢复成功 } } private boolean initActivityState(Intent intent) { /** * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id, * then jump to the NotesListActivity */ mWorkingNote = null; if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);//获取intent所携带的附加参数 mUserQuery = ""; /** * Starting from the searched result */ if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {//是否有额外的数据，有的话代表用户想要查看这一个便签 noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));//取出来对应的id以便于之后数据库搜索 mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);//将mUserQuery设置为用户输入的查询的字符串 } if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {//这个便签不能在数据库中找到 Intent jump = new Intent(this, NotesListActivity.class);//跳转到对应NoteListActivities上 startActivity(jump);//跳转 showToast(R.string.error_note_not_exist);//输出这个便签不存在 finish();//关闭页面 return false; } else { mWorkingNote = WorkingNote.load(this, noteId);//加载对应的便签 if (mWorkingNote == null) {//加载失败会记录当前的Activity Log.e(TAG, "load note failed with note id" + noteId);//输出打开失败 finish(); return false; } } getWindow().setSoftInputMode(//设置窗口为软件盘模式,窗口会自动调整布局大小以适应软键盘的显示或隐藏 WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN//此标志表示启动该 Activity 时软键盘不会自动弹出 | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);//Activity 中的窗口大小会根据软键盘的状态自动调整 } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {//如果是增添或者编辑 // New note long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);//获取FolderId int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,//获取传入的组件Id，如果没有找到对应的组件Id，那么就会返回无效的ID AppWidgetManager.INVALID_APPWIDGET_ID); int widgetType = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_TYPE,//获取组件的类型 Notes.TYPE_WIDGET_INVALIDE); int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,//获取组件的背景Id，如果没有就默认的背景颜色 ResourceParser.getDefaultBgId(this)); // Parse call-record note String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);//获取手机号码 long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0);//获取通话时间 if (callDate != 0 && phoneNumber != null) { if (TextUtils.isEmpty(phoneNumber)) {//如果没有该电话号 Log.w(TAG, "The call record number is null"); } long noteId = 0; if ((noteId = DataUtils.getNoteIdByPhoneNumberAndCallDate(getContentResolver(), phoneNumber, callDate)) > 0) {//如果从数据库找到对应的电话号和日期号了那么就进行此操作 mWorkingNote = WorkingNote.load(this, noteId);//加载该便签 if (mWorkingNote == null) {//打开失败 Log.e(TAG, "load call note failed with note id" + noteId); finish(); return false; } } else {//没有对应的日期或者没有对应的电话号码 mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId);//新建立一个便签 mWorkingNote.convertToCallNote(phoneNumber, callDate);//转化为电话记录便签 } } else {//如果有一者为空那么就代表是创建一个普通的便签 mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); } getWindow().setSoftInputMode(//也是软键盘形式 WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); } else { Log.e(TAG, "Intent not specified action, should not support");//不支持此类操作。 finish(); return false; } mWorkingNote.setOnSettingStatusChangedListener(this);//建立好之后进行监听，对更改或删除便签做相应的改变 return true; } @Override protected void onResume() {//当由后台到前台的时候进行调用 super.onResume(); initNoteScreen(); } private void initNoteScreen() { mNoteEditor.setTextAppearance(this, TextAppearanceResources .getTexAppearanceResource(mFontSizeId));//获取用户当前字体的大小 if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {//转化为清单模式 switchToListMode(mWorkingNote.getContent());//获取对应的内容 } else {//如果不是清单模式 mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));//对用户输入的关键字文本进行高亮显示 mNoteEditor.setSelection(mNoteEditor.getText().length());//获取选取的长度 } for (Integer id : sBgSelectorSelectionMap.keySet()) { findViewById(sBgSelectorSelectionMap.get(id)).setVisibility(View.GONE);//找到当前键的值，也就是id，并隐藏背景选择器选中的背景图 } mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());//在头部显示标题 mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());//在背景显示对应的背景颜色 mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this, mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_YEAR));//将修改时间文本视图中的数据写入标题 /** * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker * is not ready */ showAlertHeader();//决定是否显示提醒的表头 } private void showAlertHeader() { if (mWorkingNote.hasClockAlert()) {//如果有时间提醒 long time = System.currentTimeMillis();//获得当前的时间 if (time > mWorkingNote.getAlertDate()) {//如果超过时间提醒 mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);//设置提醒日期文本视图为过期显示内容 } else { mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(//显示距离提示还有多长时间 mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS)); } mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE);//显示提醒日期 mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE);//显示提醒图标 } else {//没有时间提醒就隐藏对应的提醒标志 mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE); mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE); }; } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); initActivityState(intent); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); /** * For new note without note id, we should firstly save it to * generate a id. If the editing note is not worth saving, there * is no id which is equivalent to create new note */ if (!mWorkingNote.existInDatabase()) {//如果数据库没有就进行保存 saveNote(); } outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId());//初始化 Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");//显示对应id信息和保存成功 } @Override public boolean dispatchTouchEvent(MotionEvent ev) {//笔记编辑器的触摸事件 if (mNoteBgColorSelector.getVisibility() == View.VISIBLE && !inRangeOfView(mNoteBgColorSelector, ev)) {//如果不在背景颜色选择器的触摸范围之内，并且背景选择器是可视化的 mNoteBgColorSelector.setVisibility(View.GONE);//将背景选择器隐藏起来 return true; } if (mFontSizeSelector.getVisibility() == View.VISIBLE//判断字体大小选择器是否显示，并且是否在改变字体大小的控制范围内 && !inRangeOfView(mFontSizeSelector, ev)) { mFontSizeSelector.setVisibility(View.GONE);//将其隐藏起来 return true; } return super.dispatchTouchEvent(ev); } private boolean inRangeOfView(View view, MotionEvent ev) { int []location = new int[2];//获取位置 view.getLocationOnScreen(location);//获取鼠标所在屏幕的左上角对应位置 int x = location[0];//横坐标 int y = location[1];//纵坐标 if (ev.getX() < x || ev.getX() > (x + view.getWidth()) || ev.getY() < y || ev.getY() > (y + view.getHeight())) { return false; }//ev.getX获取了触摸事件的横坐标，getY则是获取纵坐标，该判断语句就是判断触摸事件的横纵坐标在该视图的外部 return true;//在管辖范畴内 } private void initResources() { mHeadViewPanel = findViewById(R.id.note_title);//获取对应id的视图 mNoteHeaderHolder = new HeadViewHolder();//实例化头部信息 mNoteHeaderHolder.tvModified = (TextView) findViewById(R.id.tv_modified_date);//把修改日期视图封装在mNoteHeaderHolder中 mNoteHeaderHolder.ivAlertIcon = (ImageView) findViewById(R.id.iv_alert_icon);//把提醒图标视图封装在对象中 mNoteHeaderHolder.tvAlertDate = (TextView) findViewById(R.id.tv_alert_date);//把提醒日期视图封装在对象中 mNoteHeaderHolder.ibSetBgColor = (ImageView) findViewById(R.id.btn_set_bg_color);//把改变背景颜色的视图封装在对象中 mNoteHeaderHolder.ibSetBgColor.setOnClickListener(this);//设置对应的监听器 mNoteEditor = (EditText) findViewById(R.id.note_edit_view);//找到对应的编辑器视图 mNoteEditorPanel = findViewById(R.id.sv_note_edit);//把保存便签的视图放在该对象中 mNoteBgColorSelector = findViewById(R.id.note_bg_color_selector);//将背景颜色选择器捆绑给mNoteBgColorSelector中 for (int id : sBgSelectorBtnsMap.keySet()) {//为每一种背景颜色对应的视图设置监听器 ImageView iv = (ImageView) findViewById(id); iv.setOnClickListener(this); } mFontSizeSelector = findViewById(R.id.font_size_selector);//捆绑字体大小选择器 for (int id : sFontSizeBtnsMap.keySet()) {//为每一种字体大小设置监听器 View view = findViewById(id); view.setOnClickListener(this); }; mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);//获取默认的共享偏好 mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);//设置字体大小 /** * HACKME: Fix bug of store the resource id in shared preference. * The id may larger than the length of resources, in this case, * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE} */ if(mFontSizeId >= TextAppearanceResources.getResourcesSize()) {//如果设置的字体大小的id超过了限制，那么就重新调回默认的字体大小 mFontSizeId = ResourceParser.BG_DEFAULT_FONT_SIZE; } mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list);//线性放置 } @Override protected void onPause() { super.onPause(); if(saveNote()) { Log.d(TAG, "Note data was saved with length:" + mWorkingNote.getContent().length()); }//提示已保存对应文本 clearSettingState(); } private void updateWidget() {//更新widget Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {//更新到2x大小 intent.setClass(this, NoteWidgetProvider_2x.class); } else if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_4X) {//更新到4x大小 intent.setClass(this, NoteWidgetProvider_4x.class); } else { Log.e(TAG, "Unspported widget type"); return; } intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] {//把对应id附加上去 mWorkingNote.getWidgetId() }); sendBroadcast(intent);//让widget进行刷新操作，从而实现数据同步 setResult(RESULT_OK, intent); } public void onClick(View v) { int id = v.getId();//获取id号 if (id == R.id.btn_set_bg_color) {//如果设置背景颜色 mNoteBgColorSelector.setVisibility(View.VISIBLE);//将改变颜色的视图显示出来 findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( View.VISIBLE); } else if (sBgSelectorBtnsMap.containsKey(id)) {//如果是背景选择按钮包含此id findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( View.GONE);//将选择视图关闭 mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id));//设置对应的背景颜色 mNoteBgColorSelector.setVisibility(View.GONE);// } else if (sFontSizeBtnsMap.containsKey(id)) {//点击的是某个字体大小的图标 findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.GONE);//将选择字体大小的视图关闭 mFontSizeId = sFontSizeBtnsMap.get(id);//将当前的字体大小设置为所选的大小 mSharedPrefs.edit().putInt(PREFERENCE_FONT_SIZE, mFontSizeId).commit();//共享字体大小偏好设置为对应的字体大小 findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);//显示对应的字体 if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {//判断是否为检查模式 getWorkingText();//获取工作中的文本内容 switchToListMode(mWorkingNote.getContent());//转化为列表模式 } else { mNoteEditor.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));//显示字体大小 } mFontSizeSelector.setVisibility(View.GONE);//关闭字体大小显示 } } @Override public void onBackPressed() { if(clearSettingState()) {//关闭对应的窗口 return; } saveNote();//保存笔记 super.onBackPressed(); } private boolean clearSettingState() { if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) {//判断背景颜色选择器是否可见 mNoteBgColorSelector.setVisibility(View.GONE);//关闭 return true; } else if (mFontSizeSelector.getVisibility() == View.VISIBLE) {//判断字体大小是否可见 mFontSizeSelector.setVisibility(View.GONE);//关闭 return true; } return false; } public void onBackgroundColorChanged() { findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( View.VISIBLE);//找到对应颜色的id并进行视图显示 mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId());//编辑面板进行显示 mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId());//试图面板显示 } @Override public boolean onPrepareOptionsMenu(Menu menu) { if (isFinishing()) {//页面完成 return true; } clearSettingState();//关闭设置的状态 menu.clear();//清空菜单 if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) { getMenuInflater().inflate(R.menu.call_note_edit, menu);//进行菜单的填充 } else { getMenuInflater().inflate(R.menu.note_edit, menu); } if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_normal_mode);//切换为正常模式 } else { menu.findItem(R.id.menu_list_mode).setTitle(R.string.menu_list_mode); } if (mWorkingNote.hasClockAlert()) {//显示是否有闹钟提示 menu.findItem(R.id.menu_alert).setVisible(false);//关闭提示 } else { menu.findItem(R.id.menu_delete_remind).setVisible(false);//菜单删除提醒关闭 } return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) {//根据选项的id号进行对应的选择 case R.id.menu_new_note: createNewNote();//创建新的标签 break; case R.id.menu_delete: AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setTitle(getString(R.string.alert_title_delete));//提醒是否要删除 builder.setIcon(android.R.drawable.ic_dialog_alert);//设置删除的图标 builder.setMessage(getString(R.string.alert_message_delete_note));//提示要不要删除 builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {//确定按钮 public void onClick(DialogInterface dialog, int which) { deleteCurrentNote();//删除当前的便签 finish(); } }); builder.setNegativeButton(android.R.string.cancel, null);//不确定 builder.show();//继续展示对应界面 break; case R.id.menu_font_size://字体大小菜单 mFontSizeSelector.setVisibility(View.VISIBLE);//显示字体选择器 findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);//将字体大小选择器显示出来 break; case R.id.menu_list_mode: mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? TextNote.MODE_CHECK_LIST : 0);//设置列表模式 break; case R.id.menu_share://进行菜单分享 getWorkingText();//获取便签的内容 sendTo(this, mWorkingNote.getContent()); break; case R.id.menu_send_to_desktop: sendToDesktop();//发送到桌面上 break; case R.id.menu_alert: setReminder();//设置提醒器 break; case R.id.menu_delete_remind: mWorkingNote.setAlertDate(0, false);//设置日期提醒器 break; default: break; } return true; } private void setReminder() {//设置提醒器 DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());//设置新的对话框 d.setOnDateTimeSetListener(new OnDateTimeSetListener() {//设置监听器 public void OnDateTimeSet(AlertDialog dialog, long date) { mWorkingNote.setAlertDate(date , true);//设置信息 } }); d.show(); } /** * Share note to apps that support {@link Intent#ACTION_SEND} action * and {@text/plain} type */ private void sendTo(Context context, String info) { Intent intent = new Intent(Intent.ACTION_SEND);//代表发送一个文本信息 intent.putExtra(Intent.EXTRA_TEXT, info);//向intend中加入文本信息 intent.setType("text/plain");//文本类型 context.startActivity(intent);//启动这个intent，也就是发送信息 } private void createNewNote() { // Firstly, save current editing notes saveNote(); // For safety, start a new NoteEditActivity finish(); Intent intent = new Intent(this, NoteEditActivity.class);//新建一个intent intent.setAction(Intent.ACTION_INSERT_OR_EDIT);//设置为编辑或者插入 intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());//给id startActivity(intent);//进行相应的编辑活动 } private void deleteCurrentNote() { if (mWorkingNote.existInDatabase()) {//如果对应的便签在数据库中能找到的话 HashSet ids = new HashSet(); long id = mWorkingNote.getNoteId(); if (id != Notes.ID_ROOT_FOLDER) {//如果不是无效值 ids.add(id);//加入 } else { Log.d(TAG, "Wrong note id, should not happen");//不存在这样的便签id } if (!isSyncMode()) {//不是在同步模式下 if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) {//批量删除失败 Log.e(TAG, "Delete Note error"); } } else { if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) {//无法移动到垃圾箱 Log.e(TAG, "Move notes to trash folder error, should not happens"); } } } mWorkingNote.markDeleted(true);//标记为已经删除 } private boolean isSyncMode() { return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;//获取账号名称，如果不是空则代表是同步模式下 } public void onClockAlertChanged(long date, boolean set) { /** * User could set clock to an unsaved note, so before setting the * alert clock, we should save the note first */ if (!mWorkingNote.existInDatabase()) {//如果不在数据库中 saveNote();//保存 } if (mWorkingNote.getNoteId() > 0) {//如果id为有效id Intent intent = new Intent(this, AlarmReceiver.class);//新建intent intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()));//设置对应的日期，和对应的信息 PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);//设置触发intent AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));//设置闹钟提醒 showAlertHeader();//显示提醒的标题 if(!set) {//如果要关闭提醒 alarmManager.cancel(pendingIntent); } else { alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent);//设置提醒 } } else { /** * There is the condition that user has input nothing (the note is * not worthy saving), we have no note id, remind the user that he * should input something */ Log.e(TAG, "Clock alert setting error"); showToast(R.string.error_note_empty_for_clock); } } public void onWidgetChanged() { updateWidget(); } public void onEditTextDelete(int index, String text) { int childCount = mEditTextList.getChildCount();//获取当前便签列表的孩子个数 if (childCount == 1) {//如果只有一个孩子 return; } for (int i = index + 1; i < childCount; i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i - 1);//将index后的文本往前移动 } mEditTextList.removeViewAt(index);//把对应下标的列表内容删除 NoteEditText edit = null; if(index == 0) {//如果下标是0，那么就获取第一个标签 edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById( R.id.et_edit_text); } else {//否则就是下标减一，因为删除了一个元素 edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById( R.id.et_edit_text); } int length = edit.length(); edit.append(text);//把对应的文本内容加入 edit.requestFocus();//获取焦点 edit.setSelection(length);//设置光标到对应的长度 } public void onEditTextEnter(int index, String text) { /** * Should not happen, check for debug */ if(index > mEditTextList.getChildCount()) {//如果输入的下标大于孩子的数量，越界访问 Log.e(TAG, "Index out of mEditTextList boundrary, should not happen"); } View view = getListItem(text, index);//获取对应下标的列表物品的视图 mEditTextList.addView(view, index);//把对应下标的视图放到编辑文本的列表中 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);// edit.requestFocus();//获取编辑文本的焦点 edit.setSelection(0);//设置光标到最开始的位置 for (int i = index + 1; i < mEditTextList.getChildCount(); i++) {//保证NoteEditText的索引值和列表元素的实际位置一致 ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i); } } private void switchToListMode(String text) { mEditTextList.removeAllViews();//关掉所有的视图 String[] items = text.split("\n");//将对应的文本据回车分开 int index = 0; for (String item : items) {//遍历里面的元素 if(!TextUtils.isEmpty(item)) {//如果对应文本不是空 mEditTextList.addView(getListItem(item, index));//增加一个视图，并标上下标 index++;//到达下一个 } } mEditTextList.addView(getListItem("", index));//用于添加新的列表项目 mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus();//请求焦点 mNoteEditor.setVisibility(View.GONE);//将便签编辑器取消 mEditTextList.setVisibility(View.VISIBLE);//将便文本列表显示出来 } private Spannable getHighlightQueryResult(String fullText, String userQuery) {//将搜索到的关键字通过高亮显示出来 SpannableString spannable = new SpannableString(fullText == null ? "" : fullText); if (!TextUtils.isEmpty(userQuery)) {//判断用户查询的内容是否为空 mPattern = Pattern.compile(userQuery);//将对应得文本转化为匹配模式 Matcher m = mPattern.matcher(fullText);//把对应得文本匹配出来 int start = 0;//定义开始 while (m.find(start)) {//到达下一个位置 spannable.setSpan( new BackgroundColorSpan(this.getResources().getColor( R.color.user_query_highlight)), m.start(), m.end(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);//设置对应得高亮模式 start = m.end();//更新扫描得开始位置 } } return spannable; } private View getListItem(String item, int index) { View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null);//获取布局解析器对象 final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);//找到对应id得控件对象 edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));//设置文本形式 CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item));//根据id找到对应的多选框 cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {//监听复选框的变化 public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) {//勾选了对应的复选框 edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);//加上对应的删除线 } else {//取消了勾选 edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);//删除对应的删除线 } } }); if (item.startsWith(TAG_CHECKED)) {//如果该列表项已经被勾选了 cb.setChecked(true);//设置为选中状态 edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);// item = item.substring(TAG_CHECKED.length(), item.length()).trim();//修剪掉对应的空格 } else if (item.startsWith(TAG_UNCHECKED)) { cb.setChecked(false); edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);//未勾选状态 item = item.substring(TAG_UNCHECKED.length(), item.length()).trim();//去除TAG_UNCHECKED前缀 } edit.setOnTextViewChangeListener(this);//给当前事件捆绑监听器 edit.setIndex(index); edit.setText(getHighlightQueryResult(item, mUserQuery));//对用户的查询显示高亮 return view; } public void onTextChange(int index, boolean hasText) { if (index >= mEditTextList.getChildCount()) {//看坐标是否大于子控件数目如果大于，是无效操作 Log.e(TAG, "Wrong index, should not happen"); return; } if(hasText) {//决定左侧检查框是否显示，如果是有文本的，获取对应位置的子控件 mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE);//将对应的多选框筛查出来 } else { mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE); } } public void onCheckListModeChanged(int oldMode, int newMode) { if (newMode == TextNote.MODE_CHECK_LIST) {//如果是在检查列表模式下 switchToListMode(mNoteEditor.getText().toString());//转化为列表模式 } else { if (!getWorkingText()) { mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ", "")); } mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));// mEditTextList.setVisibility(View.GONE);// mNoteEditor.setVisibility(View.VISIBLE);// } } private boolean getWorkingText() {//根据文本内容和勾选状态生成字符串，统计用户的输入状态 boolean hasChecked = false; if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {//如果是勾选列表模式 StringBuilder sb = new StringBuilder(); for (int i = 0; i < mEditTextList.getChildCount(); i++) { View view = mEditTextList.getChildAt(i);//获取对应构件 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); if (!TextUtils.isEmpty(edit.getText())) {//获取输入框的内容 if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) {//如果当前的遍历的多选框被勾选了 sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n");//将该信息加入到sb中 hasChecked = true; } else { sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n");//没有勾选 } } } mWorkingNote.setWorkingText(sb.toString());//将其转化为String类 } else { mWorkingNote.setWorkingText(mNoteEditor.getText().toString());//设置文本内容 } return hasChecked;//存在勾选的选项 } private boolean saveNote() { getWorkingText(); boolean saved = mWorkingNote.saveNote(); if (saved) { /** * There are two modes from List view to edit view, open one note, * create/edit a node. Opening node requires to the original * position in the list when back from edit view, while creating a * new node requires to the top of the list. This code * {@link #RESULT_OK} is used to identify the create/edit state */ setResult(RESULT_OK); } return saved; } private void sendToDesktop() { /** * Before send message to home, we should make sure that current * editing note is exists in databases. So, for new note, firstly * save it */ if (!mWorkingNote.existInDatabase()) { saveNote(); } if (mWorkingNote.getNoteId() > 0) { Intent sender = new Intent(); Intent shortcutIntent = new Intent(this, NoteEditActivity.class);//表示点击桌面快捷方式需要启动的activity shortcutIntent.setAction(Intent.ACTION_VIEW); shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId()); sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); sender.putExtra(Intent.EXTRA_SHORTCUT_NAME, makeShortcutIconTitle(mWorkingNote.getContent()));//表示快捷方式的名字 sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app));//快捷方式的图标 sender.putExtra("duplicate", true); sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");//拟定发送的广播类型 showToast(R.string.info_note_enter_desktop); sendBroadcast(sender);//创建对应的快捷方式 } else {//对应的便签不存在 /** * There is the condition that user has input nothing (the note is * not worthy saving), we have no note id, remind the user that he * should input something */ Log.e(TAG, "Send to desktop error"); showToast(R.string.error_note_empty_for_send_to_desktop); } } private String makeShortcutIconTitle(String content) { content = content.replace(TAG_CHECKED, "");//去掉对应的标记 content = content.replace(TAG_UNCHECKED, ""); return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0, SHORTCUT_ICON_TITLE_MAX_LEN) : content;//将便签前几个字作为标题 } private void showToast(int resId) { showToast(resId, Toast.LENGTH_SHORT); }//显示提示信息 private void showToast(int resId, int duration) { Toast.makeText(this, resId, duration).show();//在指定时间内显示对应的信息 } }