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# Conflicts:
#	MiNote/src/net/micode/notes/data/Contact.java
#	MiNote/src/net/micode/notes/data/Notes.java
#	MiNote/src/net/micode/notes/data/NotesDatabaseHelper.java
#	MiNote/src/net/micode/notes/data/NotesProvider.java
#	MiNote/src/net/micode/notes/ui/AlarmAlertActivity.java
#	MiNote/src/net/micode/notes/ui/AlarmInitReceiver.java
#	MiNote/src/net/micode/notes/ui/AlarmReceiver.java
#	MiNote/src/net/micode/notes/ui/DateTimePicker.java
#	MiNote/src/net/micode/notes/ui/DateTimePickerDialog.java
#	MiNote/src/net/micode/notes/ui/DropdownMenu.java
#	MiNote/src/net/micode/notes/ui/FoldersListAdapter.java
#	MiNote/src/net/micode/notes/ui/NoteEditActivity.java
#	MiNote/src/net/micode/notes/ui/NoteItemData.java
#	MiNote/src/net/micode/notes/ui/NotesListAdapter.java
#	MiNote/src/net/micode/notes/ui/NotesListItem.java
#	MiNote/src/net/micode/notes/ui/NotesPreferenceActivity.java
pull/10/head
王聚英 2 years ago
parent d526e42bbc 7a97b940cf
commit 2d2147f165
4 changed files with 124 additions and 95 deletions
Show Stats Download Patch File Download Diff File

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MiNote/doc/小米便签开源代码的泛读报告.docx
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93
MiNote/src/net/micode/notes/data/Contact.java
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@ -25,11 +25,11 @@ import android.util.Log;
import java.util.HashMap;
public class Contact { //联系人
public class Contact { //联系人
private static HashMap<String, String> sContactCache;
private static final String TAG = "Contact";
// 定义字符串CALLER_ID_SELECTION
// 定义字符串CALLER_ID_SELECTION
private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL("
+ Phone.NUMBER
@ -39,20 +39,98 @@ public class Contact { //联系人
+ " FROM phone_lookup"
+ " WHERE min_match = '+')";
// 获取联系人
// 获取联系人
public static String getContact(Context context, String phoneNumber) {
if(sContactCache == null) {
sContactCache = new HashMap<String, String>();
}
// 查找HashMap中是否已有phoneNumber信息
if(sContactCache.containsKey(phoneNumber)) {
return sContactCache.get(phoneNumber);
}
String selection = CALLER_ID_SELECTION.replace("+",
PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
// 查找数据库中phoneNumber的信息
Cursor cursor = context.getContentResolver().query(
Data.CONTENT_URI,
new String [] { Phone.DISPLAY_NAME },
selection,
new String[] { phoneNumber },
null);
// 判定查询结果
// moveToFirst()返回第一条
if (cursor != null && cursor.moveToFirst()) {
try {
// 找到相关信息
String name = cursor.getString(0);
sContactCache.put(phoneNumber, name);
return name;
// 异常
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, " Cursor get string error " + e.toString());
return null;
} finally {
cursor.close();
}
// 未找到相关信息
} else {
Log.d(TAG, "No contact matched with number:" + phoneNumber);
return null;
}
}
}
/*
* 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.data;
import android.content.Context;
import android.database.Cursor;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.Data;
import android.telephony.PhoneNumberUtils;
import android.util.Log;
import java.util.HashMap;
public class Contact {
private static HashMap<String, String> sContactCache;
private static final String TAG = "Contact";
private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER
+ ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
+ " AND " + Data.RAW_CONTACT_ID + " IN "
+ "(SELECT raw_contact_id "
+ " FROM phone_lookup"
+ " WHERE min_match = '+')";
public static String getContact(Context context, String phoneNumber) {
if(sContactCache == null) {
sContactCache = new HashMap<String, String>();
}
// 查找HashMap中是否已有phoneNumber信息
if(sContactCache.containsKey(phoneNumber)) {
return sContactCache.get(phoneNumber);
}
String selection = CALLER_ID_SELECTION.replace("+",
PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
// 查找数据库中phoneNumber的信息
Cursor cursor = context.getContentResolver().query(
Data.CONTENT_URI,
new String [] { Phone.DISPLAY_NAME },
@ -60,22 +138,17 @@ public class Contact { //联系人
new String[] { phoneNumber },
null);
// 判定查询结果
// moveToFirst()返回第一条
if (cursor != null && cursor.moveToFirst()) {
try {
// 找到相关信息
String name = cursor.getString(0);
sContactCache.put(phoneNumber, name);
return name;
// 异常
} catch (IndexOutOfBoundsException e) {
Log.e(TAG, " Cursor get string error " + e.toString());
return null;
} finally {
cursor.close();
}
// 未找到相关信息
} else {
Log.d(TAG, "No contact matched with number:" + phoneNumber);
return null;

61
MiNote/src/net/micode/notes/data/Notes.java
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@ -17,19 +17,12 @@
package net.micode.notes.data;
import android.net.Uri;
// Notes 类中定义了很多常量，这些常量大多是int型和string型
public class Notes {
public static final String AUTHORITY = "micode_notes";
public static final String TAG = "Notes";
//以下三个常量对NoteColumns.TYPE的值进行设置时会用到
/**
* 帖子类型常量
*/
public static final int TYPE_NOTE = 0; // 笔记类型
public static final int TYPE_FOLDER = 1; // 文件夹类型
public static final int TYPE_SYSTEM = 2; // 系统类型
public static final int TYPE_NOTE = 0;
public static final int TYPE_FOLDER = 1;
public static final int TYPE_SYSTEM = 2;
/**
* Following IDs are system folders' identifiers
@ -37,28 +30,21 @@ public class Notes {
* {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
* {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
*/
/**
* 笔记文件夹相关的常量
*/
public static final int ID_ROOT_FOLDER = 0; // 根文件夹的ID
public static final int ID_TEMPARAY_FOLDER = -1; // 临时文件夹的ID
public static final int ID_CALL_RECORD_FOLDER = -2; // 通话记录文件夹的ID
public static final int ID_TRASH_FOLER = -3; // 垃圾箱文件夹的ID
/**
* 其他常量
*/
public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; // 通知日期的额外意图值
public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; // 背景颜色ID的额外意图值
public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; // 小部件ID的额外意图值
public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; // 小部件类型的额外意图值
public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; // 文件夹ID的额外意图值
public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; // 通话日期的额外意图值
public static final int TYPE_WIDGET_INVALIDE = -1; // 无效的控件类型
public static final int TYPE_WIDGET_2X = 0; // 2倍尺寸控件
public static final int TYPE_WIDGET_4X = 1; // 4倍尺寸控件
public static final int ID_ROOT_FOLDER = 0;
public static final int ID_TEMPARAY_FOLDER = -1;
public static final int ID_CALL_RECORD_FOLDER = -2;
public static final int ID_TRASH_FOLER = -3;
public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";
public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";
public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";
public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";
public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";
public static final int TYPE_WIDGET_INVALIDE = -1;
public static final int TYPE_WIDGET_2X = 0;
public static final int TYPE_WIDGET_4X = 1;
public static class DataConstants {
public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
@ -68,16 +54,13 @@ public class Notes {
/**
* Uri to query all notes and folders
*/
//定义查询便签和文件夹的指针
public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
/**
* Uri to query data
*/
//定义查找数据的指针。
public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
// 定义NoteColumns的常量,用于后面创建数据库的表头
public interface NoteColumns {
/**
* The unique ID for a row
@ -182,9 +165,8 @@ public class Notes {
* <P> Type : INTEGER (long) </P>
*/
public static final String VERSION = "version";
//这些常量主要是定义便签的属性的。
}
// 定义DataColumns的常量,用于后面创建数据库的表头
public interface DataColumns {
/**
* The unique ID for a row
@ -257,7 +239,6 @@ public class Notes {
* <P> Type: TEXT </P>
*/
public static final String DATA5 = "data5";
//主要是定义存储便签内容数据的
}
public static final class TextNote implements DataColumns {
@ -274,7 +255,6 @@ public class Notes {
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
//文本内容的数据结构
}
public static final class CallNote implements DataColumns {
@ -295,6 +275,5 @@ public class Notes {
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
//电话内容的数据结构
}
}

65
MiNote/src/net/micode/notes/data/NotesDatabaseHelper.java
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@ -15,35 +15,24 @@
*/
package net.micode.notes.data;
//就是用于保存一些数据（string boolean byte double float int long short ...）信息，这些信息可以被数据库操作时使用。
import android.content.ContentValues;
//加载和访问资源。
import android.content.Context;
//主要提供了对应于添加、删除、更新、查询的操作方法： insert()、delete()、update()和query()。配合content.values
import android.database.sqlite.SQLiteDatabase;
//用来管理数据的创建和版本更新
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.DataConstants;
import net.micode.notes.data.Notes.NoteColumns;
//数据库操作，用SQLOpenhelper,对一些note和文件进行数据库的操作，比如删除文件后，将文件里的note也相应删除
public class NotesDatabaseHelper extends SQLiteOpenHelper {
private static final String DB_NAME = "note.db";
private static final String DB_NAME = "note.db";
/**
* 数据库版本号
*/
private static final int DB_VERSION = 4;
/**
* 表名常量
*/
public interface TABLE { //接口，分成note和data，在后面的程序里分别使用过
public interface TABLE {
public static final String NOTE = "note";
public static final String DATA = "data";
@ -53,9 +42,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
private static NotesDatabaseHelper mInstance;
/**
* 创建NOTE表的SQL语句
*/
private static final String CREATE_NOTE_TABLE_SQL =
"CREATE TABLE " + TABLE.NOTE + "(" +
NoteColumns.ID + " INTEGER PRIMARY KEY," +
@ -75,7 +61,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
")"; //数据库中需要存储的项目的名称，就相当于创建一个表格的表头的内容。
")";
private static final String CREATE_DATA_TABLE_SQL =
"CREATE TABLE " + TABLE.DATA + "(" +
@ -90,7 +76,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
")"; //和上面的功能一样，主要是存储的项目不同
")";
private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
"CREATE INDEX IF NOT EXISTS note_id_index ON " +
@ -106,7 +92,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END"; //在文件夹中移入一个Note之后需要更改的数据的表格。
" END";
/**
* Decrease folder's note count when move note from folder
@ -119,7 +105,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
" END"; //在文件夹中移出一个Note之后需要更改的数据的表格。
" END";
/**
* Increase folder's note count when insert new note to the folder
@ -131,7 +117,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END"; //在文件夹中插入一个Note之后需要更改的数据的表格。
" END";
/**
* Decrease folder's note count when delete note from the folder
@ -144,7 +130,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0;" +
" END"; //在文件夹中删除一个Note之后需要更改的数据的表格。
" END";
/**
* Update note's content when insert data with type {@link DataConstants#NOTE}
@ -157,7 +143,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END"; //在文件夹中对一个Note导入新的数据之后需要更改的数据的表格。
" END";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has changed
@ -170,7 +156,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END"; //Note数据被修改后需要更改的数据的表格。
" END";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has deleted
@ -183,7 +169,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=''" +
" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
" END"; //Note数据被删除后需要更改的数据的表格。
" END";
/**
* Delete datas belong to note which has been deleted
@ -194,7 +180,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" BEGIN" +
" DELETE FROM " + TABLE.DATA +
" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
" END"; //删除已删除的便签的数据后需要更改的数据的表格。
" END";
/**
* Delete notes belong to folder which has been deleted
@ -205,7 +191,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" BEGIN" +
" DELETE FROM " + TABLE.NOTE +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END"; //删除已删除的文件夹的便签后需要更改的数据的表格。
" END";
/**
* Move notes belong to folder which has been moved to trash folder
@ -218,18 +204,18 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END"; //还原垃圾桶中便签后需要更改的数据的表格。
" END";
public NotesDatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}
//构造函数，传入数据库的名称和版本
public void createNoteTable(SQLiteDatabase db) {
db.execSQL(CREATE_NOTE_TABLE_SQL);
reCreateNoteTableTriggers(db);
createSystemFolder(db);
Log.d(TAG, "note table has been created");
} //创建表格（用来存储标签属性）
}
private void reCreateNoteTableTriggers(SQLiteDatabase db) {
db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
@ -248,8 +234,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER);
db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
}
//execSQL是数据库操作的API，主要是更改行为的SQL语句。
//在这里主要是用来重新创建上述定义的表格用的，先删除原来有的数据库的触发器再重新创建新的数据库
private void createSystemFolder(SQLiteDatabase db) {
ContentValues values = new ContentValues();
@ -284,14 +268,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
}//创建几个系统文件夹
}
public void createDataTable(SQLiteDatabase db) {
db.execSQL(CREATE_DATA_TABLE_SQL);
reCreateDataTableTriggers(db);
db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL);
Log.d(TAG, "data table has been created");
}//创建表格（用来存储标签内容）
}
private void reCreateDataTableTriggers(SQLiteDatabase db) {
db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert");
@ -301,23 +285,20 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER);
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
} //同上面的execSQL
}
static synchronized NotesDatabaseHelper getInstance(Context context) {
if (mInstance == null) {
mInstance = new NotesDatabaseHelper(context);
}
return mInstance;
}//解决同一时刻只能有一个线程执行.
//在写程序库代码时，有时有一个类需要被所有的其它类使用，
//但又要求这个类只能被实例化一次，是个服务类，定义一次，其它类使用同一个这个类的实例
}
@Override
public void onCreate(SQLiteDatabase db) {
createNoteTable(db);
createDataTable(db);
}
//实现两个表格（上面创建的两个表格）
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
@ -350,7 +331,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
throw new IllegalStateException("Upgrade notes database to version " + newVersion
+ "fails");
}
//数据库版本的更新（数据库内容的更改）
}
private void upgradeToV2(SQLiteDatabase db) {
@ -358,7 +338,6 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
createNoteTable(db);
createDataTable(db);
//更新到V2版本
}
private void upgradeToV3(SQLiteDatabase db) {
@ -374,12 +353,10 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
db.insert(TABLE.NOTE, null, values);
//更新到V3版本
}
private void upgradeToV4(SQLiteDatabase db) {
db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
+ " INTEGER NOT NULL DEFAULT 0");
}
//更新到V4版本
}

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