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部分功能分析

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pull/6/head
SheYu 12 months ago
parent 3893480ec9
commit 240336e792
4 changed files with 360 additions and 130 deletions
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2
src/Notes-master1/app/src/main/java/net/micode/notes/ui/AlarmAlertActivity.java
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@ -14,7 +14,7 @@
* limitations under the License.
*/
package net.micode.notes.ui;
package net.micode.notes.ui;//声明一个包
import android.app.Activity;
import android.app.AlertDialog;

312
src/Notes-master1/app/src/main/java/net/micode/notes/ui/NoteEditActivity.java
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@ -1,19 +1,3 @@
/*
* 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;
@ -74,6 +58,8 @@ import java.util.regex.Pattern;
public class NoteEditActivity extends Activity implements OnClickListener,
NoteSettingChangedListener, OnTextViewChangeListener {
//该类主要是针对标签的编辑
//继承了系统内部许多和监听有关的类
private class HeadViewHolder {
public TextView tvModified;
@ -83,7 +69,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
public ImageView ibSetBgColor;
}
//使用Map实现数据存储
private static final Map<Integer, Integer> sBgSelectorBtnsMap = new HashMap<Integer, Integer>();
static {
sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW);
@ -91,6 +77,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
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);
//put函数是将指定值和指定键相连
}
private static final Map<Integer, Integer> sBgSelectorSelectionMap = new HashMap<Integer, Integer>();
@ -100,6 +87,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
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);
//put函数是将指定值和指定键相连
}
private static final Map<Integer, Integer> sFontSizeBtnsMap = new HashMap<Integer, Integer>();
@ -108,6 +96,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
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);
//put函数是将指定值和指定键相连
}
private static final Map<Integer, Integer> sFontSelectorSelectionMap = new HashMap<Integer, Integer>();
@ -116,6 +105,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
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);
//put函数是将指定值和指定键相连
}
private static final String TAG = "NoteEditActivity";
@ -123,20 +113,23 @@ public class NoteEditActivity extends Activity implements OnClickListener,
private HeadViewHolder mNoteHeaderHolder;
private View mHeadViewPanel;
//私有化一个界面操作mHeadViewPanel，对表头的操作
private View mNoteBgColorSelector;
//私有化一个界面操作mNoteBgColorSelector，对背景颜色的操作
private View mFontSizeSelector;
//私有化一个界面操作mFontSizeSelector，对标签字体的操作
private EditText mNoteEditor;
//声明编辑控件，对文本操作
private View mNoteEditorPanel;
private WorkingNote mWorkingNote;
//私有化一个界面操作mNoteEditorPanel，文本编辑的控制板
//private WorkingNote mWorkingNote;
public WorkingNote mWorkingNote;
//对模板WorkingNote的初始化
private SharedPreferences mSharedPrefs;
//私有化SharedPreferences的数据存储方式
//它的本质是基于XML文件存储key-value键值对数据
private int mFontSizeId;
//用于操作字体的大小
private static final String PREFERENCE_FONT_SIZE = "pref_font_size";
private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10;
@ -145,7 +138,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
public static final String TAG_UNCHECKED = String.valueOf('\u25A1');
private LinearLayout mEditTextList;
//线性布局
private String mUserQuery;
private Pattern mPattern;
@ -153,7 +146,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.note_edit);
//对数据库的访问操作
if (savedInstanceState == null && !initActivityState(getIntent())) {
finish();
return;
@ -176,7 +169,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
return;
}
Log.d(TAG, "Restoring from killed activity");
}
}//为防止内存不足时程序的终止，在这里有一个保存现场的函数
}
private boolean initActivityState(Intent intent) {
@ -188,34 +181,42 @@ public class NoteEditActivity extends Activity implements OnClickListener,
if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) {
long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0);
mUserQuery = "";
//如果用户实例化标签时，系统并未给出标签ID
/**
* Starting from the searched result
*/
//根据键值查找ID
if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) {
noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY));
mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY);
}
//如果ID在数据库中未找到
if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) {
Intent jump = new Intent(this, NotesListActivity.class);
startActivity(jump);
//程序将跳转到上面声明的intent——jump
showToast(R.string.error_note_not_exist);
finish();
return false;
} else {
}
//ID在数据库中找到
else {
mWorkingNote = WorkingNote.load(this, noteId);
if (mWorkingNote == null) {
Log.e(TAG, "load note failed with note id" + noteId);
//打印出红色的错误信息
finish();
return false;
}
}
//setSoftInputMode——软键盘输入模式
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN
| WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
} else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) {
// New note
// intent.getAction()
// 大多用于broadcast发送广播时给机制（intent）设置一个action，就是一个字符串
// 用户可以通过receive（接受）intent，通过 getAction得到的字符串，来决定做什么
long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0);
int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);
@ -223,7 +224,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
Notes.TYPE_WIDGET_INVALIDE);
int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID,
ResourceParser.getDefaultBgId(this));
// intent.getInt（Long、String）Extra是对各变量的语法分析
// Parse call-record note
String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0);
@ -240,15 +241,17 @@ public class NoteEditActivity extends Activity implements OnClickListener,
finish();
return false;
}
//将电话号码与手机的号码簿相关
} else {
mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId,
widgetType, bgResId);
mWorkingNote.convertToCallNote(phoneNumber, callDate);
//
}
} else {
mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType,
bgResId);
}
}//创建一个新的WorkingNote
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE
@ -269,8 +272,10 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
private void initNoteScreen() {
//对界面的初始化操作
mNoteEditor.setTextAppearance(this, TextAppearanceResources
.getTexAppearanceResource(mFontSizeId));
//设置外观
if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
switchToListMode(mWorkingNote.getContent());
} else {
@ -294,18 +299,20 @@ public class NoteEditActivity extends Activity implements OnClickListener,
*/
showAlertHeader();
}
//设置闹钟的显示
private void showAlertHeader() {
if (mWorkingNote.hasClockAlert()) {
long time = System.currentTimeMillis();
if (time > mWorkingNote.getAlertDate()) {
mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired);
} else {
mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(
mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS));
}
//如果系统时间大于了闹钟设置的时间，那么闹钟失效
else {
mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString(mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS));
}
mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE);
mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE);
//显示闹钟开启的图标
} else {
mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE);
mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE);
@ -329,26 +336,29 @@ public class NoteEditActivity extends Activity implements OnClickListener,
if (!mWorkingNote.existInDatabase()) {
saveNote();
}
//在创建一个新的标签时，先在数据库中匹配
//如果不存在，那么先在数据库中存储
outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId());
Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState");
}
@Override
//MotionEvent是对屏幕触控的传递机制
public boolean dispatchTouchEvent(MotionEvent ev) {
if (mNoteBgColorSelector.getVisibility() == View.VISIBLE
&& !inRangeOfView(mNoteBgColorSelector, ev)) {
mNoteBgColorSelector.setVisibility(View.GONE);
return true;
}
}//颜色选择器在屏幕上可见
if (mFontSizeSelector.getVisibility() == View.VISIBLE
&& !inRangeOfView(mFontSizeSelector, ev)) {
mFontSizeSelector.setVisibility(View.GONE);
return true;
}
}//字体大小选择器在屏幕上可见
return super.dispatchTouchEvent(ev);
}
//对屏幕触控的坐标进行操作
private boolean inRangeOfView(View view, MotionEvent ev) {
int []location = new int[2];
view.getLocationOnScreen(location);
@ -357,7 +367,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
if (ev.getX() < x
|| ev.getX() > (x + view.getWidth())
|| ev.getY() < y
|| ev.getY() > (y + view.getHeight())) {
|| ev.getY() > (y + view.getHeight()))
//如果触控的位置超出了给定的范围，返回false
{
return false;
}
return true;
@ -377,13 +389,13 @@ public class NoteEditActivity extends Activity implements OnClickListener,
for (int id : sBgSelectorBtnsMap.keySet()) {
ImageView iv = (ImageView) findViewById(id);
iv.setOnClickListener(this);
}
}//对标签各项属性内容的初始化
mFontSizeSelector = findViewById(R.id.font_size_selector);
for (int id : sFontSizeBtnsMap.keySet()) {
View view = findViewById(id);
view.setOnClickListener(this);
};
};//对字体大小的选择
mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this);
mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE);
/**
@ -405,7 +417,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
clearSettingState();
}
//和桌面小工具的同步
private void updateWidget() {
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) {
@ -429,11 +441,9 @@ public class NoteEditActivity extends Activity implements OnClickListener,
int id = v.getId();
if (id == R.id.btn_set_bg_color) {
mNoteBgColorSelector.setVisibility(View.VISIBLE);
findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
View.VISIBLE);
findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(View.VISIBLE);
} else if (sBgSelectorBtnsMap.containsKey(id)) {
findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(
View.GONE);
findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility(View.GONE);
mWorkingNote.setBgColorId(sBgSelectorBtnsMap.get(id));
mNoteBgColorSelector.setVisibility(View.GONE);
} else if (sFontSizeBtnsMap.containsKey(id)) {
@ -450,7 +460,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
mFontSizeSelector.setVisibility(View.GONE);
}
}
}//************************存在问题
@Override
public void onBackPressed() {
@ -481,6 +491,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
@Override
//对选择菜单的准备
public boolean onPrepareOptionsMenu(Menu menu) {
if (isFinishing()) {
return true;
@ -489,6 +500,7 @@ public class NoteEditActivity extends Activity implements OnClickListener,
menu.clear();
if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) {
getMenuInflater().inflate(R.menu.call_note_edit, menu);
// MenuInflater是用来实例化Menu目录下的Menu布局文件的
} else {
getMenuInflater().inflate(R.menu.note_edit, menu);
}
@ -506,148 +518,224 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
@Override
/*
* 函数功能：动态改变菜单选项内容
* 函数实现：如下注释
*/
public boolean onOptionsItemSelected(MenuItem item) {
int itemId = item.getItemId();
if (itemId == R.id.menu_new_note) {
int itemId = item.getItemId();//根据菜单的id来编剧相关项目
if (itemId == R.id.menu_new_note) {//创建一个新的便签
createNewNote();
} else if (itemId == R.id.menu_delete) {
} else if (itemId == R.id.menu_delete) {//删除便签
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//创建关于删除操作的对话框
builder.setTitle(getString(R.string.alert_title_delete));
// 设置标签的标题为alert_title_delete
builder.setIcon(android.R.drawable.ic_dialog_alert);
//设置对话框图标
builder.setMessage(getString(R.string.alert_message_delete_note));
//设置对话框内容
builder.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
//建立按键监听器
public void onClick(DialogInterface dialog, int which) {
//点击所触发事件
deleteCurrentNote();
// 删除单签便签
finish();
}
});
//添加“YES”按钮
builder.setNegativeButton(android.R.string.cancel, null);
//添加“NO”的按钮
builder.show();
} else if (itemId == R.id.menu_font_size) {
//显示对话框
} else if (itemId == R.id.menu_font_size) {//字体大小的编辑
mFontSizeSelector.setVisibility(View.VISIBLE);
// 将字体选择器置为可见
findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE);
} else if (itemId == R.id.menu_list_mode) {
// 通过id找到相应的大小
} else if (itemId == R.id.menu_list_mode) {//选择列表模式
mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ?
TextNote.MODE_CHECK_LIST : 0);
} else if (itemId == R.id.menu_share) {
} else if (itemId == R.id.menu_share) {//菜单共享
getWorkingText();
sendTo(this, mWorkingNote.getContent());
} else if (itemId == R.id.menu_send_to_desktop) {
// 用sendto函数将运行文本发送到遍历的本文内
} else if (itemId == R.id.menu_send_to_desktop) {//发送到桌面
sendToDesktop();
} else if (itemId == R.id.menu_alert) {
} else if (itemId == R.id.menu_alert) {//创建提醒器
setReminder();
} else if (itemId == R.id.menu_delete_remind) {
} else if (itemId == R.id.menu_delete_remind) {//删除日期提醒
mWorkingNote.setAlertDate(0, false);
}
return true;
}
/*
* 函数功能：建立事件提醒器
* 函数实现：如下注释
*/
private void setReminder() {
DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis());
// 建立修改时间日期的对话框
d.setOnDateTimeSetListener(new OnDateTimeSetListener() {
public void OnDateTimeSet(AlertDialog dialog, long date) {
mWorkingNote.setAlertDate(date , true);
//选择提醒的日期
}
});
//建立时间日期的监听器
d.show();
//显示对话框
}
/**
* Share note to apps that support {@link Intent#ACTION_SEND} action
* and {@text/plain} type
*/
/*
* 函数功能：共享便签
* 函数实现：如下注释
*/
private void sendTo(Context context, String info) {
Intent intent = new Intent(Intent.ACTION_SEND);
//建立intent链接选项
intent.putExtra(Intent.EXTRA_TEXT, info);
//将需要传递的便签信息放入text文件中
intent.setType("text/plain");
//编辑连接器的类型
context.startActivity(intent);
//在acti中进行链接
}
/*
* 函数功能：创建一个新的便签
* 函数实现：如下注释
*/
private void createNewNote() {
// Firstly, save current editing notes
//保存当前便签
saveNote();
// For safety, start a new NoteEditActivity
finish();
Intent intent = new Intent(this, NoteEditActivity.class);
//设置链接器
intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
//该活动定义为创建或编辑
intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());
//将运行便签的id添加到INTENT_EXTRA_FOLDER_ID标记中
startActivity(intent);
//开始activity并链接
}
/*
* 函数功能：删除当前便签
* 函数实现：如下注释
*/
private void deleteCurrentNote() {
if (mWorkingNote.existInDatabase()) {
//假如当前运行的便签内存有数据
HashSet<Long> ids = new HashSet<Long>();
long id = mWorkingNote.getNoteId();
if (id != Notes.ID_ROOT_FOLDER) {
ids.add(id);
//如果不是头文件夹建立一个hash表把便签id存起来
} else {
Log.d(TAG, "Wrong note id, should not happen");
//否则报错
}
if (!isSyncMode()) {
//在非同步模式情况下
//删除操作
if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) {
Log.e(TAG, "Delete Note error");
}
} else {
//同步模式
//移动至垃圾文件夹的操作
if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) {
Log.e(TAG, "Move notes to trash folder error, should not happens");
}
}
}
mWorkingNote.markDeleted(true);
//将这些标签的删除标记置为true
}
/*
* 函数功能：判断是否为同步模式
* 函数实现：直接看NotesPreferenceActivity中同步名称是否为空
*/
private boolean isSyncMode() {
return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
}
/*
* 函数功能：设置提醒时间
* 函数实现：如下注释
*/
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()) {
//首先保存已有的便签
saveNote();
}
if (mWorkingNote.getNoteId() > 0) {
Intent intent = new Intent(this, AlarmReceiver.class);
intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId()));
//若有有运行的便签就是建立一个链接器将标签id都存在uri中
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE));
//设置提醒管理器
showAlertHeader();
if(!set) {
alarmManager.cancel(pendingIntent);
} else {
alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent);
}
//如果用户设置了时间，就通过提醒管理器设置一个监听事项
} 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
*/
//没有运行的便签就报错
Log.e(TAG, "Clock alert setting error");
showToast(R.string.error_note_empty_for_clock);
}
}
/*
* 函数功能：Widget发生改变的所触发的事件
*/
public void onWidgetChanged() {
updateWidget();
updateWidget();//更新Widget
}
/*
* 函数功能： 删除编辑文本框所触发的事件
* 函数实现：如下注释
*/
public void onEditTextDelete(int index, String text) {
int childCount = mEditTextList.getChildCount();
if (childCount == 1) {
return;
}
//没有编辑框的话直接返回
for (int i = index + 1; i < childCount; i++) {
((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
.setIndex(i - 1);
//通过id把编辑框存在便签编辑框中
}
mEditTextList.removeViewAt(index);
//删除特定位置的视图
NoteEditText edit = null;
if(index == 0) {
edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById(
@ -656,69 +744,101 @@ public class NoteEditActivity extends Activity implements OnClickListener,
edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById(
R.id.et_edit_text);
}
//通过id把编辑框存在空的NoteEditText中
int length = edit.length();
edit.append(text);
edit.requestFocus();
edit.setSelection(length);
edit.requestFocus();//请求优先完成该此 编辑
edit.setSelection(length);//定位到length位置处的条目
}
/*
* 函数功能：进入编辑文本框所触发的事件
* 函数实现：如下注释
*/
public void onEditTextEnter(int index, String text) {
/**
* Should not happen, check for debug
*/
if(index > mEditTextList.getChildCount()) {
Log.e(TAG, "Index out of mEditTextList boundrary, should not happen");
//越界把偶偶
}
View view = getListItem(text, index);
mEditTextList.addView(view, index);
//建立一个新的视图并添加到编辑文本框内
NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
edit.requestFocus();
edit.setSelection(0);
edit.requestFocus();//请求优先操作
edit.setSelection(0);//定位到起始位置
for (int i = index + 1; i < mEditTextList.getChildCount(); i++) {
((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text))
.setIndex(i);
//遍历子文本框并设置对应对下标
}
}
/*
* 函数功能：切换至列表模式
* 函数实现：如下注释
*/
private void switchToListMode(String text) {
mEditTextList.removeAllViews();
String[] items = text.split("\n");
int index = 0;
//清空所有视图，初始化下标
for (String item : items) {
if(!TextUtils.isEmpty(item)) {
mEditTextList.addView(getListItem(item, index));
index++;
//遍历所有文本单元并添加到文本框中
}
}
mEditTextList.addView(getListItem("", index));
mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus();
//优先请求此操作
mNoteEditor.setVisibility(View.GONE);
//便签编辑器不可见
mEditTextList.setVisibility(View.VISIBLE);
//将文本编辑框置为可见
}
/*
* 函数功能：获取高亮效果的反馈情况
* 函数实现：如下注释
*/
private Spannable getHighlightQueryResult(String fullText, String userQuery) {
SpannableString spannable = new SpannableString(fullText == null ? "" : fullText);
//新建一个效果选项
if (!TextUtils.isEmpty(userQuery)) {
mPattern = Pattern.compile(userQuery);
//将用户的询问进行解析
Matcher m = mPattern.matcher(fullText);
//建立一个状态机检查Pattern并进行匹配
int start = 0;
while (m.find(start)) {
spannable.setSpan(
new BackgroundColorSpan(this.getResources().getColor(
R.color.user_query_highlight)), m.start(), m.end(),
Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
//设置背景颜色
start = m.end();
//跟新起始位置
}
}
return spannable;
}
/*
* 函数功能：获取列表项
* 函数实现：如下注释
*/
private View getListItem(String item, int index) {
View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null);
//创建一个视图
final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId));
//创建一个文本编辑框并设置可见性
CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item));
cb.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
@ -729,12 +849,15 @@ public class NoteEditActivity extends Activity implements OnClickListener,
}
}
});
//建立一个打钩框并设置监听器
if (item.startsWith(TAG_CHECKED)) {
//选择勾选
cb.setChecked(true);
edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
item = item.substring(TAG_CHECKED.length(), item.length()).trim();
} else if (item.startsWith(TAG_UNCHECKED)) {
//选择不勾选
cb.setChecked(false);
edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
item = item.substring(TAG_UNCHECKED.length(), item.length()).trim();
@ -743,61 +866,94 @@ public class NoteEditActivity extends Activity implements OnClickListener,
edit.setOnTextViewChangeListener(this);
edit.setIndex(index);
edit.setText(getHighlightQueryResult(item, mUserQuery));
//运行编辑框的监听器对该行为作出反应，并设置下标及文本内容
return view;
}
/*
* 函数功能：便签内容发生改变所 触发的事件
* 函数实现：如下注释
*/
public void onTextChange(int index, boolean hasText) {
if (index >= mEditTextList.getChildCount()) {
Log.e(TAG, "Wrong index, should not happen");
return;
//越界报错
}
if(hasText) {
mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE);
} else {
mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE);
}
//如果内容不为空则将其子编辑框可见性置为可见，否则不可见
}
/*
* 函数功能：检查模式和列表模式的切换
* 函数实现：如下注释
*/
public void onCheckListModeChanged(int oldMode, int newMode) {
if (newMode == TextNote.MODE_CHECK_LIST) {
switchToListMode(mNoteEditor.getText().toString());
//检查模式切换到列表模式
} else {
if (!getWorkingText()) {
mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ",
""));
}
//若是获取到文本就改变其检查标记
mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery));
mEditTextList.setVisibility(View.GONE);
mNoteEditor.setVisibility(View.VISIBLE);
//修改文本编辑器的内容和可见性
}
}
/*
* 函数功能：设置勾选选项表并返回是否勾选的标记
* 函数实现：如下注释
*/
private boolean getWorkingText() {
boolean hasChecked = false;
//初始化check标记
if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) {
// 若模式为CHECK_LIST
StringBuilder sb = new StringBuilder();
//创建可变字符串
for (int i = 0; i < mEditTextList.getChildCount(); i++) {
View view = mEditTextList.getChildAt(i);
//遍历所有子编辑框的视图
NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text);
if (!TextUtils.isEmpty(edit.getText())) {
//若文本不为空
if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) {
//该选项框已打钩
sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n");
hasChecked = true;
//扩展字符串为已打钩并把标记置true
} else {
sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n");
//扩展字符串添加未打钩
}
}
}
mWorkingNote.setWorkingText(sb.toString());
//利用编辑好的字符串设置运行便签的内容
} else {
mWorkingNote.setWorkingText(mNoteEditor.getText().toString());
// 若不是该模式直接用编辑器中的内容设置运行中标签的内容
}
return hasChecked;
}
/*
* 函数功能：保存便签
* 函数实现：如下注释
*/
private boolean saveNote() {
getWorkingText();
boolean saved = mWorkingNote.saveNote();
//运行 getWorkingText()之后保存
if (saved) {
/**
* There are two modes from List view to edit view, open one note,
@ -806,11 +962,16 @@ public class NoteEditActivity extends Activity implements OnClickListener,
* new node requires to the top of the list. This code
* {@link #RESULT_OK} is used to identify the create/edit state
*/
//如英文注释所说链接RESULT_OK是为了识别保存的2种情况，一是创建后保存，二是修改后保存
setResult(RESULT_OK);
}
return saved;
}
/*
* 函数功能：将便签发送至桌面
* 函数实现：如下注释
*/
private void sendToDesktop() {
/**
* Before send message to home, we should make sure that current
@ -819,12 +980,16 @@ public class NoteEditActivity extends Activity implements OnClickListener,
*/
if (!mWorkingNote.existInDatabase()) {
saveNote();
//若不存在数据也就是新的标签就保存起来先
}
if (mWorkingNote.getNoteId() > 0) {
//若是有内容
Intent sender = new Intent();
Intent shortcutIntent = new Intent(this, NoteEditActivity.class);
//建立发送到桌面的连接器
shortcutIntent.setAction(Intent.ACTION_VIEW);
//链接为一个视图
shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId());
sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
sender.putExtra(Intent.EXTRA_SHORTCUT_NAME,
@ -832,9 +997,12 @@ public class NoteEditActivity extends Activity implements OnClickListener,
sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app));
sender.putExtra("duplicate", true);
//将便签的相关信息都添加到要发送的文件里
sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
//设置sneder的行为是发送
showToast(R.string.info_note_enter_desktop);
sendBroadcast(sender);
//显示到桌面
} else {
/**
* There is the condition that user has input nothing (the note is
@ -843,20 +1011,34 @@ public class NoteEditActivity extends Activity implements OnClickListener,
*/
Log.e(TAG, "Send to desktop error");
showToast(R.string.error_note_empty_for_send_to_desktop);
//空便签直接报错
}
}
/*
* 函数功能：编辑小图标的标题
* 函数实现：如下注释
*/
private String makeShortcutIconTitle(String content) {
content = content.replace(TAG_CHECKED, "");
content = content.replace(TAG_UNCHECKED, "");
return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0,
SHORTCUT_ICON_TITLE_MAX_LEN) : content;
//直接设置为content中的内容并返回，有勾选和未勾选2种
}
/*
* 函数功能：显示提示的视图
* 函数实现：根据下标显示对应的提示
*/
private void showToast(int resId) {
showToast(resId, Toast.LENGTH_SHORT);
}
/*
* 函数功能：持续显示提示的视图
* 函数实现：根据下标和持续的时间（duration）编辑提示视图并显示
*/
private void showToast(int resId, int duration) {
Toast.makeText(this, resId, duration).show();
}

114
src/Notes-master1/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
Unescape View File

@ -1,19 +1,3 @@
/*
* 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;
@ -77,8 +61,12 @@ import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.HashSet;
public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener {
//主界面，一进入就是这个界面
/**
* @author k
*
*/
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
private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0;
private static final int FOLDER_LIST_QUERY_TOKEN = 1;
@ -89,7 +77,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
private static final int MENU_FOLDER_CHANGE_NAME = 2;
private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction";
private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; //单行超过80个字符
private enum ListEditState {
NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER
@ -136,8 +124,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
private final static int REQUEST_CODE_NEW_NODE = 103;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 创建类
protected void onCreate(final Bundle savedInstanceState) { //需要是final类型 根据程序上下文环境，Java关键字final有“这是无法改变的”或者“终态的”含义，它可以修饰非抽象类、非抽象类成员方法和变量。你可能出于两种理解而需要阻止改变：设计或效率。
// final类不能被继承，没有子类，final类中的方法默认是final的。
//final方法不能被子类的方法覆盖，但可以被继承。
//final成员变量表示常量，只能被赋值一次，赋值后值不再改变。
//final不能用于修饰构造方法。
super.onCreate(savedInstanceState); // 调用父类的onCreate函数
setContentView(R.layout.note_list);
initResources();
@ -148,26 +141,32 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
@Override
// 返回一些子模块完成的数据交给主Activity处理
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// 结果值 和 要求值 符合要求
if (resultCode == RESULT_OK
&& (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) {
mNotesListAdapter.changeCursor(null);
} else {
super.onActivityResult(requestCode, resultCode, data);
// 调用 Activity 的onActivityResult（）
}
}
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。
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this);
if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) {
StringBuilder sb = new StringBuilder();
InputStream in = null;
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,
// 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);
if (in != null) {
InputStreamReader isr = new InputStreamReader(in);
BufferedReader br = new BufferedReader(isr);
char [] buf = new char[1024];
char [] buf = new char[1024]; // 自行定义的数值，使用者不知道有什么意义
int len = 0;
while ((len = br.read(buf)) > 0) {
sb.append(buf, 0, len);
@ -190,11 +189,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
}
// 创建空的WorkingNote
WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER,
AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE,
ResourceParser.RED);
note.setWorkingText(sb.toString());
if (note.saveNote()) {
// 更新保存note的信息
sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit();
} else {
Log.e(TAG, "Save introduction note error");
@ -209,18 +210,21 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
startAsyncNotesListQuery();
}
// 初始化资源
private void initResources() {
mContentResolver = this.getContentResolver();
mContentResolver = this.getContentResolver(); // 获取应用程序的数据，得到类似数据表的东西
mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver());
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mNotesListView = (ListView) findViewById(R.id.notes_list);
// 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.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null),
null, false);
mNotesListView.setOnItemClickListener(new OnListItemClickListener());
mNotesListView.setOnItemLongClickListener(this);
mNotesListAdapter = new NotesListAdapter(this);
mNotesListView.setAdapter(mNotesListAdapter);
mAddNewNote = (Button) findViewById(R.id.btn_new_note);
mAddNewNote = (Button) findViewById(R.id.btn_new_note);// 在activity中要获取该按钮
mAddNewNote.setOnClickListener(this);
mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener());
mDispatch = false;
@ -231,6 +235,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
mModeCallBack = new ModeCallback();
}
// 继承自ListView.MultiChoiceModeListener 和 OnMenuItemClickListener
private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener {
private DropdownMenu mDropDownMenu;
private ActionMode mActionMode;
@ -259,7 +264,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
(Button) customView.findViewById(R.id.selection_menu),
R.menu.note_list_dropdown);
mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){
public boolean onMenuItemClick(MenuItem item) {
public boolean onMenuItemClick(final MenuItem item) {
mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected());
updateMenu();
return true;
@ -269,11 +274,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
return true;
}
// 更新菜单
private void updateMenu() {
int selectedCount = mNotesListAdapter.getSelectedCount();
// Update dropdown menu
String format = getResources().getString(R.string.menu_select_title, selectedCount);
mDropDownMenu.setTitle(format);
mDropDownMenu.setTitle(format); // 更改标题
MenuItem item = mDropDownMenu.findItem(R.id.action_select_all);
if (item != null) {
if (mNotesListAdapter.isAllSelected()) {
@ -364,7 +370,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
/**
* 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）
* "New Note" button could be expressed by formula y=-0.12x+94锛圲nit:pixel锛<EFBFBD>
* 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
@ -658,9 +664,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
});
}
/* (non-Javadoc)
* @see android.app.Activity#onBackPressed()
* 按返回键时根据情况更改类中的数据
*/
@Override
public void onBackPressed() {
switch (mState) {
public void onBackPressed() { switch (mState) {
case SUB_FOLDER:
mCurrentFolderId = Notes.ID_ROOT_FOLDER;
mState = ListEditState.NOTE_LIST;
@ -682,6 +691,11 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
}
/**
* @param appWidgetId
* @param appWidgetType
* 根据不同类型的widget更新插件，通过intent传送数据
*/
private void updateWidget(int appWidgetId, int appWidgetType) {
Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
if (appWidgetType == Notes.TYPE_WIDGET_2X) {
@ -701,6 +715,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
setResult(RESULT_OK, intent);
}
/**
* 声明监听器，建立菜单，包括名称，视图，删除操作，更改名称操作；
*/
private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() {
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
if (mFocusNoteDataItem != null) {
@ -720,6 +737,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
super.onContextMenuClosed(menu);
}
/* (non-Javadoc)
* @see android.app.Activity#onContextItemSelected(android.view.MenuItem)
* 针对menu中不同的选择进行不同的处理，里面详细注释
*/
@Override
public boolean onContextItemSelected(MenuItem item) {
if (mFocusNoteDataItem == null) {
@ -728,10 +749,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
switch (item.getItemId()) {
case MENU_FOLDER_VIEW:
openFolder(mFocusNoteDataItem);
openFolder(mFocusNoteDataItem);//打开对应文件
break;
case MENU_FOLDER_DELETE:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
AlertDialog.Builder builder = new AlertDialog.Builder(this);//设置确认是否删除的对话框
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));
@ -742,7 +763,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
});
builder.setNegativeButton(android.R.string.cancel, null);
builder.show();
builder.show();//显示对话框
break;
case MENU_FOLDER_CHANGE_NAME:
showCreateOrModifyFolderDialog(false);
@ -799,12 +820,19 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
return true;
}
/* (non-Javadoc)
* @see android.app.Activity#onSearchRequested()
* 直接调用startSearch函数
*/
@Override
public boolean onSearchRequested() {
startSearch(null, false, null /* appData */, false);
return true;
}
/**
* 函数功能：实现将便签导出到文本功能
*/
private void exportNoteToText() {
final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this);
new AsyncTask<Void, Void, Integer>() {
@ -847,16 +875,27 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}.execute();
}
/**
* @return
* 功能：判断是否正在同步
*/
private boolean isSyncMode() {
return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0;
}
/**
* 功能：跳转到PreferenceActivity界面
*/
private void startPreferenceActivity() {
Activity from = getParent() != null ? getParent() : this;
Intent intent = new Intent(from, NotesPreferenceActivity.class);
from.startActivityIfNeeded(intent, -1);
}
/**
* @author k
* 函数功能：实现对便签列表项的点击事件（短按）
*/
private class OnListItemClickListener implements OnItemClickListener {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
@ -898,6 +937,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
}
/**
* 查询目标文件
*/
private void startQueryDestinationFolders() {
String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?";
selection = (mState == ListEditState.NOTE_LIST) ? selection:
@ -916,6 +958,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
NoteColumns.MODIFIED_DATE + " DESC");
}
/* (non-Javadoc)
* @see android.widget.AdapterView.OnItemLongClickListener#onItemLongClick(android.widget.AdapterView, android.view.View, int, long)
* 长按某一项时进行的操作
* 如果长按的是便签，则通过ActionMode菜单实现；如果长按的是文件夹，则通过ContextMenu菜单实现；
* 具体ActionMOde菜单和ContextMenu菜单的详细见精度笔记
*/
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
if (view instanceof NotesListItem) {
mFocusNoteDataItem = ((NotesListItem) view).getItemData();

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