hejian 2 weeks ago
parent 1cbfff9508
commit b553191e9a

@ -14,13 +14,6 @@ android {
versionName = "1.0"
testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
packaging {
resources.excludes.add("META-INF/DEPENDENCIES");
resources.excludes.add("META-INF/NOTICE");
resources.excludes.add("META-INF/LICENSE");
resources.excludes.add("META-INF/LICENSE.txt");
resources.excludes.add("META-INF/NOTICE.txt");
}
}
buildTypes {
@ -33,8 +26,15 @@ android {
}
}
compileOptions {
sourceCompatibility = JavaVersion.VERSION_11
targetCompatibility = JavaVersion.VERSION_11
sourceCompatibility = JavaVersion.VERSION_1_8
targetCompatibility = JavaVersion.VERSION_1_8
}
packaging {
resources.excludes.add("META-INF/DEPENDENCIES");
resources.excludes.add("META-INF/NOTICE");
resources.excludes.add("META-INF/LICENSE");
resources.excludes.add("META-INF/LICENSE.txt");
resources.excludes.add("META-INF/NOTICE.txt");
}
}
@ -44,21 +44,21 @@ dependencies {
implementation(libs.material)
implementation(libs.activity)
implementation(libs.constraintlayout)
implementation(fileTree(mapOf(
"dir" to "D:\\APP\\Notesmaster\\httpcomponents-client-4.5.14-bin",
"include" to listOf("*.aar", "*.jar"),
"exclude" to listOf("")
)))
// implementation(fileTree(mapOf(
// "dir" to "G:\\AndroidProject\\Notesmaster2\\httpcomponents-client-4.5.14-bin\\lib",
// "include" to listOf("*.aar", "*.jar"),
// "exclude" to listOf("")
// )))
// 部分需要重新修改
// implementation(fileTree(mapOf(
// "dir" to "D:\\Code\\AndroidCode\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib",
// "include" to listOf("*.aar", "*.jar"),
// "exclude" to listOf("")
// )))
//修改为如下代码:
implementation(files("D:\\APP\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-osgi-4.5.14.jar"))
implementation(files("D:\\APP\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-win-4.5.14.jar"))
implementation(files("D:\\APP\\Notesmaster\\httpcomponents-client-4.5.14-bin\\lib\\httpcore-4.4.16.jar"))
//修改为如下代码:
implementation(files("G:\\AndroidProject\\Notesmaster2\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-osgi-4.5.14.jar"))
implementation(files("G:\\AndroidProject\\Notesmaster2\\httpcomponents-client-4.5.14-bin\\lib\\httpclient-win-4.5.14.jar"))
implementation(files("G:\\AndroidProject\\Notesmaster2\\httpcomponents-client-4.5.14-bin\\lib\\httpcore-4.4.16.jar"))
testImplementation(libs.junit)
androidTestImplementation(libs.ext.junit)
androidTestImplementation(libs.espresso.core)

@ -36,8 +36,8 @@ public class Contact {
private static final String TAG = "Contact";
//SQL查询条件 WHERE 后面的语句),用于从联系人数据库中筛选出与给定电话号码匹配的联系人。
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 "
+ ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
+ " AND " + Data.RAW_CONTACT_ID + " IN "
+ "(SELECT raw_contact_id "
+ " FROM phone_lookup"
+ " WHERE min_match = '+')";

@ -47,40 +47,40 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
/* 以下都是一些SQL语句辅助我们来对数据库进行操作 */
//创建note表的语句这里的NoteColumns就是我们刚刚在Notes中定义的一个接口里面定义了一系列静态的数据库表中的列名
private static final String CREATE_NOTE_TABLE_SQL =
"CREATE TABLE " + TABLE.NOTE + "(" +
NoteColumns.ID + " INTEGER PRIMARY KEY," +
NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
")";
"CREATE TABLE " + TABLE.NOTE + "(" +
NoteColumns.ID + " INTEGER PRIMARY KEY," +
NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
")";
//同上创建data表的语句这里的DataColumns就是我们刚刚在Notes中定义的一个接口里面定义了一系列静态的数据库表中的列名
private static final String CREATE_DATA_TABLE_SQL =
"CREATE TABLE " + TABLE.DATA + "(" +
DataColumns.ID + " INTEGER PRIMARY KEY," +
DataColumns.MIME_TYPE + " TEXT NOT NULL," +
DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA1 + " INTEGER," +
DataColumns.DATA2 + " INTEGER," +
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
")";
"CREATE TABLE " + TABLE.DATA + "(" +
DataColumns.ID + " INTEGER PRIMARY KEY," +
DataColumns.MIME_TYPE + " TEXT NOT NULL," +
DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA1 + " INTEGER," +
DataColumns.DATA2 + " INTEGER," +
DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
")";
// 功能简介:
// 创建一个以note的ID为索引
// 解读:
@ -89,8 +89,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 索引通常用于提高查询性能,特别是在对某个字段进行频繁查询时。
private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
"CREATE INDEX IF NOT EXISTS note_id_index ON " +
TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
"CREATE INDEX IF NOT EXISTS note_id_index ON " +
TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
/* 以下是一些对便签增删改定义的触发器 */
@ -110,13 +110,13 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 触发器的逻辑是当某个笔记的PARENT_ID即父文件夹ID被更新时它会找到对应的文件夹通过新的PARENT_ID并将该文件夹的NOTES_COUNT即笔记数增加1。
private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER increase_folder_count_on_update "+
" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END";
"CREATE TRIGGER increase_folder_count_on_update "+
" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END";
/**
* Decrease folder's note count when move note from folder
@ -125,14 +125,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 添加触发器:减少文件夹的便签个数记录(因为我们会移动便签移出文件夹,这时候文件夹的计数要进行更新)
private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER decrease_folder_count_on_update " +
" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
" END";
"CREATE TRIGGER decrease_folder_count_on_update " +
" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
" END";
/**
* Increase folder's note count when insert new note to the folder
@ -140,13 +140,13 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 功能简介:(触发器原理和上面的 “增加文件夹的便签个数记录” 同理,就不细节解读了)
// 添加触发器:当我们在文件夹插入便签时,增加文件夹的便签个数记录
private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
"CREATE TRIGGER increase_folder_count_on_insert " +
" AFTER INSERT ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END";
"CREATE TRIGGER increase_folder_count_on_insert " +
" AFTER INSERT ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
" END";
/**
* Decrease folder's note count when delete note from the folder
@ -154,14 +154,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 功能简介:(触发器原理和上面的 “增加文件夹的便签个数记录” 同理,就不细节解读了)
// 添加触发器:当我们在文件夹删除便签时,减少文件夹的便签个数记录
private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
"CREATE TRIGGER decrease_folder_count_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0;" +
" END";
"CREATE TRIGGER decrease_folder_count_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN " +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
" AND " + NoteColumns.NOTES_COUNT + ">0;" +
" END";
/**
* Update note's content when insert data with type {@link DataConstants#NOTE}
@ -173,14 +173,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 它会更新NOTE表将与新插入数据相关联的标签的SNIPPET摘要字段设置为新插入数据的CONTENT字段的值
private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
"CREATE TRIGGER update_note_content_on_insert " +
" AFTER INSERT ON " + TABLE.DATA +
" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END";
"CREATE TRIGGER update_note_content_on_insert " +
" AFTER INSERT ON " + TABLE.DATA +
" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has changed
@ -192,14 +192,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 它会更新NOTE表将与更新后的数据相关联的笔记的SNIPPET字段设置为新数据的CONTENT字段的值
private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
"CREATE TRIGGER update_note_content_on_update " +
" AFTER UPDATE ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END";
"CREATE TRIGGER update_note_content_on_update " +
" AFTER UPDATE ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
" END";
/**
* Update note's content when data with {@link DataConstants#NOTE} type has deleted
@ -211,14 +211,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 它会更新NOTE表将与删除的数据相关联的笔记的SNIPPET字段设置为空字符串。
private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
"CREATE TRIGGER update_note_content_on_delete " +
" AFTER delete ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=''" +
" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
" END";
"CREATE TRIGGER update_note_content_on_delete " +
" AFTER delete ON " + TABLE.DATA +
" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.SNIPPET + "=''" +
" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
" END";
/**
* Delete datas belong to note which has been deleted
@ -230,12 +230,12 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 它会从DATA表中删除所有与已删除的笔记由old.ID表示相关联的数据行通过比较DATA表中的NOTE_ID字段与已删除笔记的ID来实现
private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
"CREATE TRIGGER delete_data_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.DATA +
" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
" END";
"CREATE TRIGGER delete_data_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.DATA +
" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
" END";
/**
* Delete notes belong to folder which has been deleted
@ -247,12 +247,12 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 触发器会删除所有以该文件夹为父级PARENT_ID的笔记通过比较NOTE表中的PARENT_ID字段与已删除文件夹的ID来实现
private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
"CREATE TRIGGER folder_delete_notes_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.NOTE +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END";
"CREATE TRIGGER folder_delete_notes_on_delete " +
" AFTER DELETE ON " + TABLE.NOTE +
" BEGIN" +
" DELETE FROM " + TABLE.NOTE +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END";
/**
* Move notes belong to folder which has been moved to trash folder
@ -264,14 +264,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
// 触发器会更新所有以该文件夹为父级PARENT_ID的笔记将它们也移动到回收站。
private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
"CREATE TRIGGER folder_move_notes_on_trash " +
" AFTER UPDATE ON " + TABLE.NOTE +
" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END";
"CREATE TRIGGER folder_move_notes_on_trash " +
" AFTER UPDATE ON " + TABLE.NOTE +
" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" BEGIN" +
" UPDATE " + TABLE.NOTE +
" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
" END";
// 构造器
public NotesDatabaseHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);

@ -34,14 +34,25 @@ import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.data.NotesDatabaseHelper.TABLE;
//uri匹配器、NotesDatabaseHelper实类与日志标记的定义。
public class NotesProvider extends ContentProvider {
// Android 应用程序中的一部分内容提供者ContentProvider
// 内容提供者是 Android 四大组件之一,它允许应用程序之间共享数据。
//概述:
//NotesProvider的主要功能是作为一个内容提供者为其他应用程序或组件提供对“Notes”数据的访问。
//它允许其他应用程序查询、插入、更新或删除标签数据。
//通过URI匹配NotesProvider能够区分对哪种数据类型的请求例如单独的标签、标签的数据、文件夹操作等并执行相应的操作。
//用于匹配不同URI的UriMatcher对象通常用于解析传入的URI并确定应该执行哪种操作。
private static final UriMatcher mMatcher;
private NotesDatabaseHelper mHelper;
//NotesDatabaseHelper实类用来操作SQLite数据库负责创建、更新和查询数据库。
private NotesDatabaseHelper mHelper;
//标签,输出日志时用来表示是该类发出的消息
private static final String TAG = "NotesProvider";
//6个URI的匹配码用于区分不同的URI类型
//6个URI的匹配码用于区分不同的URI类型
private static final int URI_NOTE = 1;
private static final int URI_NOTE_ITEM = 2;
private static final int URI_DATA = 3;
@ -49,23 +60,14 @@ public class NotesProvider extends ContentProvider {
private static final int URI_SEARCH = 5;
private static final int URI_SEARCH_SUGGEST = 6;
//实例化一个mMatcher对象并进一步定义uri的匹配规则。
//
//这种写法是Android开发中常见的初始化静态成员变量的方式特别是当涉及到内容提供者Content Providers时。
//
//静态初始化块确保了在类加载时mMatcher就被初始化并且所有的URI匹配规则也一并设置好了。这样做使得代码组织清晰所有与URI匹配相关的设置都集中在一个地方方便管理和维护
//————————————————
//
////功能概述:
////初始化了一个UriMatcher对象mMatcher并添加了一系列的URI匹配规则。
////解读:
//进一步定义了URI匹配规则和搜索查询的投影
//功能概述:
//初始化了一个UriMatcher对象mMatcher并添加了一系列的URI匹配规则。
//解读:
static {
//创建了一个UriMatcher实例并设置默认匹配码为NO_MATCH表示如果没有任何URI匹配则返回这个码。
mMatcher = new UriMatcher(UriMatcher.NO_MATCH);
//添加规则当URI的authority为Notes.AUTHORITY路径为note时返回匹配码URI_NOTE
//添加规则当URI的authority为Notes.AUTHORITY路径为note时返回匹配码URI_NOTE。
mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE);
//添加规则当URI的authority为Notes.AUTHORITY路径为note/后跟一个数字(#代表数字返回匹配码URI_NOTE_ITEM。
mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM);
@ -83,45 +85,49 @@ public class NotesProvider extends ContentProvider {
* x'0A' represents the '\n' character in sqlite. For title and content in the search result,
* we will trim '\n' and white space in order to show more information.
*/
//功能概述:
//一个 SQL 查询的投影部分,用于定义查询返回的结果集中应该包含哪些列。
//解读:(每行对应)
//返回笔记的 ID。
//笔记的 ID 也被重命名为 SUGGEST_COLUMN_INTENT_EXTRA_DATA这通常用于 Android 的搜索建议中,作为传递给相关 Intent 的额外数据。
//对 SNIPPET 列的处理:首先使用 REPLACE 函数将 x'0A'(即换行符 \n替换为空字符串然后使用 TRIM 函数删除前后的空白字符,处理后的结果分别重命名为 SUGGEST_COLUMN_TEXT_1
//对 SNIPPET 列的处理:首先使用 REPLACE 函数将 x'0A'(即换行符 \n替换为空字符串然后使用 TRIM 函数删除前后的空白字符,处理后的结果分别重命名为 SUGGEST_COLUMN_TEXT_2
//返回一个用于搜索建议图标的资源 ID并命名为 SUGGEST_COLUMN_ICON_1。
//返回一个固定的 Intent 动作 ACTION_VIEW并命名为 SUGGEST_COLUMN_INTENT_ACTION。
//返回一个内容类型,并命名为 SUGGEST_COLUMN_INTENT_DATA。
private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," //返回笔记的 ID
//返回笔记的 ID。
//笔记的 ID 也被重命名为 SUGGEST_COLUMN_INTENT_EXTRA_DATA这通常用于 Android 的搜索建议中,作为传递给相关 Intent 的额外数据。
//对 SNIPPET 列的处理:首先使用 REPLACE 函数将 x'0A'(即换行符 \n替换为空字符串然后使用 TRIM 函数删除前后的空白字符,处理后的结果分别重命名为 SUGGEST_COLUMN_TEXT_1
//对 SNIPPET 列的处理:首先使用 REPLACE 函数将 x'0A'(即换行符 \n替换为空字符串然后使用 TRIM 函数删除前后的空白字符,处理后的结果分别重命名为 SUGGEST_COLUMN_TEXT_2
//返回一个用于搜索建议图标的资源 ID并命名为 SUGGEST_COLUMN_ICON_1。
//返回一个固定的 Intent 动作 ACTION_VIEW并命名为 SUGGEST_COLUMN_INTENT_ACTION。
//返回一个内容类型,并命名为 SUGGEST_COLUMN_INTENT_DATA。
private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + ","
+ NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
+ "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
+ "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + ","
+ R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
+ "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
+ "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
//功能概述:
//完整的 SQL 查询语句,用于从 TABLE.NOTE 表中检索信息
//解读:
// 使用上面定义的投影来选择数据。
// 并指定从哪个表中选择数据。
//WHERE子句包含三个条件
// ①搜索 SNIPPET 列中包含特定模式的行(? 是一个占位符,实际查询时会用具体的值替换)。
// ②父ID不为回收站的ID排除那些父 ID 为回收站的行。
// ③只选择类型为note标签的行。
//解读:
// 使用上面定义的投影来选择数据。
// 并指定从哪个表中选择数据。
//WHERE子句包含三个条件
// ①搜索 SNIPPET 列中包含特定模式的行(? 是一个占位符,实际查询时会用具体的值替换)。
// ②父ID不为回收站的ID排除那些父 ID 为回收站的行。
// ③只选择类型为note标签的行。
private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
+ " FROM " + TABLE.NOTE
+ " WHERE " + NoteColumns.SNIPPET + " LIKE ?"
+ " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER
+ " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE;
//重写onCreate方法
//getContext() 方法被调用以获取当前组件的上下文Context以便 NotesDatabaseHelper 能够访问应用程序的资源和其他功能
//mHelper用于存储从 NotesDatabaseHelper.getInstance 方法返回的实例。这样,该实例就可以在整个组件的其他方法中被访问和使用。
//重写onCreate方法
//getContext() 方法被调用以获取当前组件的上下文Context以便 NotesDatabaseHelper 能够访问应用程序的资源和其他功能
//mHelper用于存储从 NotesDatabaseHelper.getInstance 方法返回的实例。这样,该实例就可以在整个组件的其他方法中被访问和使用。
@Override
public boolean onCreate() {
mHelper = NotesDatabaseHelper.getInstance(getContext());
return true;
}
//功能:查询数据
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
@ -156,7 +162,8 @@ public class NotesProvider extends ContentProvider {
id = uri.getPathSegments().get(1);
c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id
+ parseSelection(selection), selectionArgs, null, null, sortOrder);
break;//URI_SEARCH 和 URI_SEARCH_SUGGEST处理搜索查询。
break;
//URI_SEARCH 和 URI_SEARCH_SUGGEST处理搜索查询。
// 代码首先检查是否提供了不应与搜索查询一起使用的参数(如 sortOrder, selection, selectionArgs, 或 projection
// 如果提供了这些参数,则抛出一个 IllegalArgumentException。
// 根据 URI 类型,从 URI 的路径段或查询参数中获取搜索字符串 searchString。
@ -191,6 +198,7 @@ public class NotesProvider extends ContentProvider {
Log.e(TAG, "got exception: " + ex.toString());
}
break;
//未知URI处理
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
@ -201,17 +209,18 @@ public class NotesProvider extends ContentProvider {
}
return c;
}
//功能:插入数据
//参数Uri 用来标识要插入数据的表ContentValues对象包含要插入的键值对
@Override
public Uri insert(Uri uri, ContentValues values) {
//参数Uri 用来标识要插入数据的表ContentValues对象包含要插入的键值对
//获取数据库
//三个长整型变量分别用来存储数据项ID、便签ID 和插入行的ID
SQLiteDatabase db = mHelper.getWritableDatabase();
long dataId = 0, noteId = 0, insertedId = 0;
//对于 URI_NOTE将values插入到 TABLE.NOTE 表中,并返回插入行的 ID。
//对于 URI_DATA首先检查values是否包含 DataColumns.NOTE_ID如果包含则获取其值。如果不包含记录一条日志信息。然后将 values 插入到 TABLE.DATA 表中,并返回插入行的 ID。
//如果 uri 不是已知的 URI 类型,则抛出一个 IllegalArgumentException。
switch (mMatcher.match(uri)) {
case URI_NOTE:
insertedId = noteId = db.insert(TABLE.NOTE, null, values);
@ -227,12 +236,10 @@ public class NotesProvider extends ContentProvider {
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
// 功能:通知变化
// 如果noteId 或 dataId 大于 0即成功插入了数据则使用 ContentResolver 的 notifyChange 方法通知监听这些 URI 的观察者,告知数据已经改变。
// ContentUris.withAppendedId 方法用于在基本 URI 后面追加一个 ID形成完整的 URI。
// Notify the note uri
//功能:通知变化
//如果noteId 或 dataId 大于 0即成功插入了数据则使用 ContentResolver 的 notifyChange 方法通知监听这些 URI 的观察者,告知数据已经改变。
//ContentUris.withAppendedId 方法用于在基本 URI 后面追加一个 ID形成完整的 URI。
// Notify the note uri
if (noteId > 0) {
getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
@ -243,9 +250,10 @@ public class NotesProvider extends ContentProvider {
getContext().getContentResolver().notifyChange(
ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
}
//返回包含新插入数据项ID 的 Uri。允许调用者知道新插入的数据项的位置
//返回包含新插入数据项ID 的 Uri。允许调用者知道新插入的数据项的位置
return ContentUris.withAppendedId(uri, insertedId);
}
//功能:删除数据项
//参数uri标识要删除数据的表或数据项。 selection一个可选的 WHERE 子句,用于指定删除条件。 selectionArgs一个可选的字符串数组用于替换 selection 中的占位符
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
@ -262,6 +270,7 @@ public class NotesProvider extends ContentProvider {
//URI_NOTE_ITEM: 从 URI 中解析出 ID。检查 ID 是否小于等于 0如果是则不执行删除操作否则执行删除操作并返回被删除的行数
//URI_DATA 执行删除操作并返回被删除的行数。设置 deleteData 为 true表示删除了 DATA 表中的数据。
//URI_DATA_ITEM 先从 URI 中解析出 ID然后执行删除操作并返回被删除的行数并设置 deleteData 为 true表示删除了 DATA 表中的数据。
case URI_NOTE:
selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";
count = db.delete(TABLE.NOTE, selection, selectionArgs);
@ -273,9 +282,6 @@ public class NotesProvider extends ContentProvider {
* trash
*/
long noteId = Long.valueOf(id);
//如果 count 大于 0说明有数据被删除。
//如果 deleteData 为 true则通知监听 Notes.CONTENT_NOTE_URI 的观察者,数据已改变。
//通知监听传入 uri 的观察者数据已改变。
if (noteId <= 0) {
break;
}
@ -295,6 +301,9 @@ public class NotesProvider extends ContentProvider {
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
//如果 count 大于 0说明有数据被删除。
//如果 deleteData 为 true则通知监听 Notes.CONTENT_NOTE_URI 的观察者,数据已改变。
//通知监听传入 uri 的观察者数据已改变。
if (count > 0) {
if (deleteData) {
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
@ -303,8 +312,9 @@ public class NotesProvider extends ContentProvider {
}
return count;
}
//参数uri标识要更新数据的表或数据项。 values一个包含新值的键值对集合。
// selection一个可选的 WHERE 子句,用于指定更新条件。 selectionArgs一个可选的字符串数组用于替换 selection 中的占位符。
//功能:更新数据库的数据
//参数uri标识要更新数据的表或数据项。 values一个包含新值的键值对集合。
// selection一个可选的 WHERE 子句,用于指定更新条件。 selectionArgs一个可选的字符串数组用于替换 selection 中的占位符。
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
@ -321,7 +331,6 @@ public class NotesProvider extends ContentProvider {
//URI_NOTE_ITEM从 URI 中解析出 ID并调用 increaseNoteVersion 方法,传入解析出的 ID最后在note表执行更新操作并返回被更新的行数。
//URI_DATA在data表执行更新操作并返回被更新的行数。设置 updateData 为 true表示更新了 DATA 表中的数据。
//URI_DATA_ITEM从 URI 中解析出 ID。执行更新操作并返回被更新的行数。置 updateData 为 true表示更新了 DATA 表中的数据。
case URI_NOTE:
increaseNoteVersion(-1, selection, selectionArgs);
count = db.update(TABLE.NOTE, values, selection, selectionArgs);
@ -345,11 +354,10 @@ public class NotesProvider extends ContentProvider {
default:
throw new IllegalArgumentException("Unknown URI " + uri);
}
//如果 count 大于 0说明有数据被更新。
//如果 updateData 为 true则通知监听 Notes.CONTENT_NOTE_URI 的观察者数据已改变。
//通知监听传入 uri 的观察者数据已改变。
if (count > 0) {
//如果 count 大于 0说明有数据被更新。
//如果 updateData 为 true则通知监听 Notes.CONTENT_NOTE_URI 的观察者数据已改变。
//通知监听传入 uri 的观察者数据已改变。
if (updateData) {
getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
}
@ -357,12 +365,10 @@ public class NotesProvider extends ContentProvider {
}
return count;
}
//解析传入的条件语句:一个 SQL WHERE 子句的一部分
private String parseSelection(String selection) {
return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : "");
}
//更新note表的version列将其值增加 1。
private void increaseNoteVersion(long id, String selection, String[] selectionArgs) {
StringBuilder sql = new StringBuilder(120);

@ -37,12 +37,12 @@ public class MetaData extends Task {
*
* JSONObjectput ()TasksetNotes ()setName ()
*
*/
*/
public void setMeta(String gid, JSONObject metaInfo) {
//对函数块进行注释
try {
metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
// 将这对键值放入metaInfo这个jsonobject对象中
// 将这对键值放入metaInfo这个jsonobject对象中
} catch (JSONException e) {
//输出错误信息
Log.e(TAG, "failed to put related gid");

@ -198,7 +198,7 @@ public class SqlData {
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
} else {
result = mContentResolver.update(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
" ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
+ " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
String.valueOf(noteId), String.valueOf(version)

@ -189,7 +189,7 @@ public class SqlNote {
try {
c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
new String[] {
String.valueOf(id)
String.valueOf(id)
}, null);//通过id获得对应的ContentResolver中的cursor
if (c != null) {
c.moveToNext();
@ -226,7 +226,7 @@ public class SqlNote {
try {
c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
"(note_id=?)", new String[] {
String.valueOf(mId)
String.valueOf(mId)
}, null);
if (c != null) {
if (c.getCount() == 0) {
@ -493,11 +493,11 @@ public class SqlNote {
if (!validateVersion) {//构造字符串
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ NoteColumns.ID + "=?)", new String[] {
String.valueOf(mId)
String.valueOf(mId)
});
} else {
result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+ NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
+ NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
new String[] {
String.valueOf(mId), String.valueOf(mVersion)
});
@ -523,4 +523,3 @@ public class SqlNote {
mIsCreate = false;
}
}

@ -13,29 +13,16 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Description便
*/
package net.micode.notes.gtask.exception;
public class ActionFailureException extends RuntimeException {
private static final long serialVersionUID = 4425249765923293627L;
/*
* serialVersionUIDjava
* serialVersionUID
* Made By Cuican13
*/
public ActionFailureException() {
super();
}
/*
* JAVA使superthis.
* new
* 使super
* super()super (paramString)Exception ()Exception (paramString)
* Made By Cuican24
*/
public ActionFailureException(String paramString) {
super(paramString);
}

@ -14,31 +14,15 @@
* limitations under the License.
*/
/*
* Description便
*/
package net.micode.notes.gtask.exception;
public class NetworkFailureException extends Exception {
private static final long serialVersionUID = 2107610287180234136L;
/*
* serialVersionUIDjava
* serialVersionUID
* Made By Cuican13
*/
public NetworkFailureException() {
super();
}
/*
* JAVA使superthis.
* new
* 使super
* super()super (paramString)Exception ()Exception (paramString)
* Made By Cuican
*/
public NetworkFailureException(String paramString) {
super(paramString);
}

@ -114,7 +114,7 @@ public class GTaskClient {
}
return mInstance;
}
/*Activity
/*Activity
*
* 使URL使URL
* truefalse
@ -130,7 +130,7 @@ public class GTaskClient {
// need to re-login after account switch 重新登录操作
if (mLoggedin
&& !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity
.getSyncAccountName(activity))) {
.getSyncAccountName(activity))) {
mLoggedin = false;
}
//如果没超过时间,则不需要重新登录

Some files were not shown because too many files have changed in this diff Show More

Loading…
Cancel
Save