采用Flow

app/src/main/java/io/legado/app/data/dao/BookChapterDao.kt

@@ -11,10 +11,10 @@ import kotlinx.coroutines.flow.Flow
 interface BookChapterDao {
 
     @Query("select * from chapters where bookUrl = :bookUrl order by `index`")
-    fun observeByBook(bookUrl: String): Flow<List<BookChapter>>
+    fun flowByBook(bookUrl: String): Flow<List<BookChapter>>
 
     @Query("SELECT * FROM chapters where bookUrl = :bookUrl and title like '%'||:key||'%' order by `index`")
-    fun liveDataSearch(bookUrl: String, key: String): Flow<List<BookChapter>>
+    fun flowSearch(bookUrl: String, key: String): Flow<List<BookChapter>>
 
     @Query("select * from chapters where bookUrl = :bookUrl order by `index`")
     fun getChapterList(bookUrl: String): List<BookChapter>

app/src/main/java/io/legado/app/data/dao/BookDao.kt

@@ -9,25 +9,25 @@ import kotlinx.coroutines.flow.Flow
 interface BookDao {
 
     @Query("SELECT * FROM books order by durChapterTime desc")
-    fun observeAll(): Flow<List<Book>>
+    fun flowAll(): Flow<List<Book>>
 
     @Query("SELECT * FROM books WHERE type = ${BookType.audio}")
-    fun observeAudio(): Flow<List<Book>>
+    fun flowAudio(): Flow<List<Book>>
 
     @Query("SELECT * FROM books WHERE origin = '${BookType.local}'")
-    fun observeLocal(): Flow<List<Book>>
+    fun flowLocal(): Flow<List<Book>>
 
     @Query("select * from books where type != ${BookType.audio} and origin != '${BookType.local}' and ((SELECT sum(groupId) FROM book_groups where groupId > 0) & `group`) = 0")
-    fun observeNoGroup(): Flow<List<Book>>
+    fun flowNoGroup(): Flow<List<Book>>
 
     @Query("SELECT bookUrl FROM books WHERE origin = '${BookType.local}'")
-    fun observeLocalUri(): Flow<List<String>>
+    fun flowLocalUri(): Flow<List<String>>
 
     @Query("SELECT * FROM books WHERE (`group` & :group) > 0")
-    fun observeByGroup(group: Long): Flow<List<Book>>
+    fun flowByGroup(group: Long): Flow<List<Book>>
 
     @Query("SELECT * FROM books WHERE name like '%'||:key||'%' or author like '%'||:key||'%'")
-    fun liveDataSearch(key: String): Flow<List<Book>>
+    fun flowSearch(key: String): Flow<List<Book>>
 
     @Query("SELECT * FROM books WHERE (`group` & :group) > 0")
     fun getBooksByGroup(group: Long): List<Book>

app/src/main/java/io/legado/app/data/dao/BookGroupDao.kt

@@ -15,7 +15,7 @@ interface BookGroupDao {
     fun getByName(groupName: String): BookGroup?
 
     @Query("SELECT * FROM book_groups ORDER BY `order`")
-    fun liveDataAll(): Flow<List<BookGroup>>
+    fun flowAll(): Flow<List<BookGroup>>
 
     @Query(
         """
@@ -26,10 +26,10 @@ interface BookGroupDao {
         or (groupId = -1 and show > 0)
         ORDER BY `order`"""
     )
-    fun liveDataShow(): Flow<List<BookGroup>>
+    fun flowShow(): Flow<List<BookGroup>>
 
     @Query("SELECT * FROM book_groups where groupId >= 0 ORDER BY `order`")
-    fun liveDataSelect(): Flow<List<BookGroup>>
+    fun flowSelect(): Flow<List<BookGroup>>
 
     @get:Query("SELECT sum(groupId) FROM book_groups where groupId >= 0")
     val idsSum: Long

app/src/main/java/io/legado/app/data/dao/BookSourceDao.kt

@@ -8,69 +8,62 @@ import kotlinx.coroutines.flow.Flow
 interface BookSourceDao {
 
     @Query("select * from book_sources order by customOrder asc")
-    fun liveDataAll(): Flow<List<BookSource>>
+    fun flowAll(): Flow<List<BookSource>>
 
     @Query(
-        """
-        select * from book_sources 
+        """select * from book_sources 
         where bookSourceName like :searchKey 
         or bookSourceGroup like :searchKey 
         or bookSourceUrl like :searchKey  
         or bookSourceComment like :searchKey 
-        order by customOrder asc
-        """
+        order by customOrder asc"""
     )
-    fun liveDataSearch(searchKey: String): Flow<List<BookSource>>
+    fun flowSearch(searchKey: String): Flow<List<BookSource>>
 
     @Query("select * from book_sources where bookSourceGroup like :searchKey order by customOrder asc")
-    fun liveDataGroupSearch(searchKey: String): Flow<List<BookSource>>
+    fun flowGroupSearch(searchKey: String): Flow<List<BookSource>>
 
     @Query("select * from book_sources where enabled = 1 order by customOrder asc")
-    fun liveDataEnabled(): Flow<List<BookSource>>
+    fun flowEnabled(): Flow<List<BookSource>>
 
     @Query("select * from book_sources where enabled = 0 order by customOrder asc")
-    fun liveDataDisabled(): Flow<List<BookSource>>
+    fun flowDisabled(): Flow<List<BookSource>>
 
     @Query("select * from book_sources where enabledExplore = 1 and trim(exploreUrl) <> '' order by customOrder asc")
-    fun liveExplore(): Flow<List<BookSource>>
+    fun flowExplore(): Flow<List<BookSource>>
 
     @Query(
-        """
-        select * from book_sources 
+        """select * from book_sources 
         where enabledExplore = 1 
         and trim(exploreUrl) <> '' 
         and (bookSourceGroup like :key or bookSourceName like :key) 
-        order by customOrder asc
-        """
+        order by customOrder asc"""
     )
-    fun liveExplore(key: String): Flow<List<BookSource>>
+    fun flowExplore(key: String): Flow<List<BookSource>>
 
     @Query(
-        """
-        select * from book_sources 
+        """select * from book_sources 
         where enabledExplore = 1 
         and trim(exploreUrl) <> '' 
         and (bookSourceGroup like :key) 
-        order by customOrder asc
-        """
+        order by customOrder asc"""
     )
-    fun liveGroupExplore(key: String): Flow<List<BookSource>>
+    fun flowGroupExplore(key: String): Flow<List<BookSource>>
 
     @Query("select distinct bookSourceGroup from book_sources where trim(bookSourceGroup) <> ''")
-    fun liveGroup(): Flow<List<String>>
+    fun flowGroup(): Flow<List<String>>
 
     @Query("select distinct bookSourceGroup from book_sources where enabled = 1 and trim(bookSourceGroup) <> ''")
-    fun liveGroupEnabled(): Flow<List<String>>
+    fun flowGroupEnabled(): Flow<List<String>>
 
     @Query(
-        """
-        select distinct bookSourceGroup from book_sources 
+        """select distinct bookSourceGroup from book_sources 
         where enabledExplore = 1 
         and trim(exploreUrl) <> '' 
         and trim(bookSourceGroup) <> ''
-        """
+        order by customOrder"""
     )
-    fun liveExploreGroup(): Flow<List<String>>
+    fun flowExploreGroup(): Flow<List<String>>
 
     @Query("select * from book_sources where bookSourceGroup like '%' || :group || '%'")
     fun getByGroup(group: String): List<BookSource>

app/src/main/java/io/legado/app/data/dao/BookmarkDao.kt

@@ -11,23 +11,20 @@ interface BookmarkDao {
     @get:Query("select * from bookmarks")
     val all: List<Bookmark>
 
-    @Query("select * from bookmarks where bookName = :bookName and bookAuthor = :bookAuthor")
-    fun observeByBook(
-        bookName: String,
-        bookAuthor: String
-    ): Flow<List<Bookmark>>
+    @Query(
+        """select * from bookmarks 
+        where bookName = :bookName and bookAuthor = :bookAuthor 
+        order by chapterIndex"""
+    )
+    fun flowByBook(bookName: String, bookAuthor: String): Flow<List<Bookmark>>
 
     @Query(
-        """
-        SELECT * FROM bookmarks where bookName = :bookName and bookAuthor = :bookAuthor 
+        """SELECT * FROM bookmarks 
+        where bookName = :bookName and bookAuthor = :bookAuthor 
         and chapterName like '%'||:key||'%' or content like '%'||:key||'%'
-    """
+        order by chapterIndex"""
     )
-    fun liveDataSearch(
-        bookName: String,
-        bookAuthor: String,
-        key: String
-    ): Flow<List<Bookmark>>
+    fun flowSearch(bookName: String, bookAuthor: String, key: String): Flow<List<Bookmark>>
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insert(vararg bookmark: Bookmark)

app/src/main/java/io/legado/app/data/dao/HttpTTSDao.kt

@@ -11,7 +11,7 @@ interface HttpTTSDao {
     val all: List<HttpTTS>
 
     @Query("select * from httpTTS order by name")
-    fun observeAll(): Flow<List<HttpTTS>>
+    fun flowAll(): Flow<List<HttpTTS>>
 
     @get:Query("select count(*) from httpTTS")
     val count: Int

app/src/main/java/io/legado/app/data/dao/ReplaceRuleDao.kt

@@ -9,16 +9,16 @@ import kotlinx.coroutines.flow.Flow
 interface ReplaceRuleDao {
 
     @Query("SELECT * FROM replace_rules ORDER BY sortOrder ASC")
-    fun liveDataAll(): Flow<List<ReplaceRule>>
+    fun flowAll(): Flow<List<ReplaceRule>>
 
     @Query("SELECT * FROM replace_rules where `group` like :key or name like :key ORDER BY sortOrder ASC")
-    fun liveDataSearch(key: String): Flow<List<ReplaceRule>>
+    fun flowSearch(key: String): Flow<List<ReplaceRule>>
 
     @Query("SELECT * FROM replace_rules where `group` like :key ORDER BY sortOrder ASC")
-    fun liveDataGroupSearch(key: String): Flow<List<ReplaceRule>>
+    fun flowGroupSearch(key: String): Flow<List<ReplaceRule>>
 
     @Query("select `group` from replace_rules where `group` is not null and `group` <> ''")
-    fun liveGroup(): Flow<List<String>>
+    fun flowGroup(): Flow<List<String>>
 
     @get:Query("SELECT MIN(sortOrder) FROM replace_rules")
     val minOrder: Int
@@ -39,11 +39,9 @@ interface ReplaceRuleDao {
     fun findByIds(vararg ids: Long): List<ReplaceRule>
 
     @Query(
-        """
-        SELECT * FROM replace_rules WHERE isEnabled = 1 
+        """SELECT * FROM replace_rules WHERE isEnabled = 1 
         AND (scope LIKE '%' || :name || '%' or scope LIKE '%' || :origin || '%' or scope is null or scope = '')
-        order by sortOrder
-        """
+        order by sortOrder"""
     )
     fun findEnabledByScope(name: String, origin: String): List<ReplaceRule>
 

app/src/main/java/io/legado/app/data/dao/RssArticleDao.kt

@@ -18,7 +18,7 @@ interface RssArticleDao {
         on t1.link = t2.record  where origin = :origin and sort = :sort
         order by `order` desc"""
     )
-    fun liveByOriginSort(origin: String, sort: String): Flow<List<RssArticle>>
+    fun flowByOriginSort(origin: String, sort: String): Flow<List<RssArticle>>
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insert(vararg rssArticle: RssArticle)

app/src/main/java/io/legado/app/data/dao/RssSourceDao.kt

@@ -20,32 +20,30 @@ interface RssSourceDao {
     val size: Int
 
     @Query("SELECT * FROM rssSources order by customOrder")
-    fun liveAll(): Flow<List<RssSource>>
+    fun flowAll(): Flow<List<RssSource>>
 
     @Query("SELECT * FROM rssSources where sourceName like :key or sourceUrl like :key or sourceGroup like :key order by customOrder")
-    fun liveSearch(key: String): Flow<List<RssSource>>
+    fun flowSearch(key: String): Flow<List<RssSource>>
 
     @Query("SELECT * FROM rssSources where sourceGroup like :key order by customOrder")
-    fun liveGroupSearch(key: String): Flow<List<RssSource>>
+    fun flowGroupSearch(key: String): Flow<List<RssSource>>
 
     @Query("SELECT * FROM rssSources where enabled = 1 order by customOrder")
-    fun liveEnabled(): Flow<List<RssSource>>
+    fun flowEnabled(): Flow<List<RssSource>>
 
     @Query(
-        """
-        SELECT * FROM rssSources 
+        """SELECT * FROM rssSources 
         where enabled = 1 
         and (sourceName like :searchKey or sourceGroup like :searchKey or sourceUrl like :searchKey) 
-        order by customOrder
-        """
+        order by customOrder"""
     )
-    fun liveEnabled(searchKey: String): Flow<List<RssSource>>
+    fun flowEnabled(searchKey: String): Flow<List<RssSource>>
 
     @Query("SELECT * FROM rssSources where enabled = 1 and sourceGroup like :searchKey order by customOrder")
-    fun liveEnabledByGroup(searchKey: String): Flow<List<RssSource>>
+    fun flowEnabledByGroup(searchKey: String): Flow<List<RssSource>>
 
     @Query("select distinct sourceGroup from rssSources where trim(sourceGroup) <> ''")
-    fun liveGroup(): Flow<List<String>>
+    fun flowGroup(): Flow<List<String>>
 
     @get:Query("select distinct sourceGroup from rssSources where trim(sourceGroup) <> ''")
     val allGroup: List<String>

app/src/main/java/io/legado/app/data/dao/RuleSubDao.kt

@@ -11,7 +11,7 @@ interface RuleSubDao {
     val all: List<RuleSub>
 
     @Query("select * from ruleSubs order by customOrder")
-    fun observeAll(): Flow<List<RuleSub>>
+    fun flowAll(): Flow<List<RuleSub>>
 
     @get:Query("select customOrder from ruleSubs order by customOrder limit 0,1")
     val maxOrder: Int

app/src/main/java/io/legado/app/data/dao/SearchBookDao.kt

@@ -16,24 +16,27 @@ interface SearchBookDao {
     fun getFirstByNameAuthor(name: String, author: String): SearchBook?
 
     @Query(
-        """
-        select t1.name, t1.author, t1.origin, t1.originName, t1.coverUrl, t1.bookUrl, t1.type, t1.time, t1.intro, t1.kind, t1.latestChapterTitle, t1.tocUrl, t1.variable, t1.wordCount, t2.customOrder as originOrder
+        """select t1.name, t1.author, t1.origin, t1.originName, t1.coverUrl, t1.bookUrl, 
+        t1.type, t1.time, t1.intro, t1.kind, t1.latestChapterTitle, t1.tocUrl, t1.variable, 
+        t1.wordCount, t2.customOrder as originOrder
         from searchBooks as t1 inner join book_sources as t2 
         on t1.origin = t2.bookSourceUrl 
-        where t1.name = :name and t1.author like '%'||:author||'%' and t2.enabled = 1 and t2.bookSourceGroup like '%'||:sourceGroup||'%'
-        order by t2.customOrder
-        """
+        where t1.name = :name and t1.author like '%'||:author||'%' 
+        and t2.enabled = 1 and t2.bookSourceGroup like '%'||:sourceGroup||'%'
+        order by t2.customOrder"""
     )
     fun getChangeSourceSearch(name: String, author: String, sourceGroup: String): List<SearchBook>
 
     @Query(
-        """
-        select t1.name, t1.author, t1.origin, t1.originName, t1.coverUrl, t1.bookUrl, t1.type, t1.time, t1.intro, t1.kind, t1.latestChapterTitle, t1.tocUrl, t1.variable, t1.wordCount, t2.customOrder as originOrder
+        """select t1.name, t1.author, t1.origin, t1.originName, t1.coverUrl, t1.bookUrl, 
+        t1.type, t1.time, t1.intro, t1.kind, t1.latestChapterTitle, t1.tocUrl, t1.variable, 
+        t1.wordCount, t2.customOrder as originOrder
         from searchBooks as t1 inner join book_sources as t2 
         on t1.origin = t2.bookSourceUrl 
-        where t1.name = :name and t1.author = :author and originName like '%'||:key||'%' and t2.enabled = 1 and t2.bookSourceGroup like '%'||:sourceGroup||'%'
-        order by t2.customOrder
-        """
+        where t1.name = :name and t1.author = :author 
+        and originName like '%'||:key||'%' and t2.enabled = 1 
+        and t2.bookSourceGroup like '%'||:sourceGroup||'%'
+        order by t2.customOrder"""
     )
     fun getChangeSourceSearch(
         name: String,

app/src/main/java/io/legado/app/data/dao/SearchKeywordDao.kt

@@ -12,13 +12,13 @@ interface SearchKeywordDao {
     val all: List<SearchKeyword>
 
     @Query("SELECT * FROM search_keywords ORDER BY usage DESC")
-    fun liveDataByUsage(): Flow<List<SearchKeyword>>
+    fun flowByUsage(): Flow<List<SearchKeyword>>
 
     @Query("SELECT * FROM search_keywords ORDER BY lastUseTime DESC")
-    fun liveDataByTime(): Flow<List<SearchKeyword>>
+    fun flowByTime(): Flow<List<SearchKeyword>>
 
     @Query("SELECT * FROM search_keywords where word like '%'||:key||'%' ORDER BY usage DESC")
-    fun liveDataSearch(key: String): Flow<List<SearchKeyword>>
+    fun flowSearch(key: String): Flow<List<SearchKeyword>>
 
     @Query("select * from search_keywords where word = :key")
     fun get(key: String): SearchKeyword?

app/src/main/java/io/legado/app/data/dao/TxtTocRuleDao.kt

@@ -1,14 +1,14 @@
 package io.legado.app.data.dao
 
-import androidx.lifecycle.LiveData
 import androidx.room.*
 import io.legado.app.data.entities.TxtTocRule
+import kotlinx.coroutines.flow.Flow
 
 @Dao
 interface TxtTocRuleDao {
 
     @Query("select * from txtTocRules order by serialNumber")
-    fun observeAll(): LiveData<List<TxtTocRule>>
+    fun observeAll(): Flow<List<TxtTocRule>>
 
     @get:Query("select * from txtTocRules order by serialNumber")
     val all: List<TxtTocRule>

app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookActivity.kt

@@ -109,7 +109,7 @@ class ArrangeBookActivity : VMBaseActivity<ActivityArrangeBookBinding, ArrangeBo
 
     private fun initGroupData() {
         lifecycleScope.launch {
-            appDb.bookGroupDao.liveDataAll().collect {
+            appDb.bookGroupDao.flowAll().collect {
                 groupList.clear()
                 groupList.addAll(it)
                 adapter.notifyDataSetChanged()
@@ -122,11 +122,11 @@ class ArrangeBookActivity : VMBaseActivity<ActivityArrangeBookBinding, ArrangeBo
         booksFlowJob?.cancel()
         booksFlowJob = lifecycleScope.launch {
             when (groupId) {
-                AppConst.bookGroupAllId -> appDb.bookDao.observeAll()
-                AppConst.bookGroupLocalId -> appDb.bookDao.observeLocal()
-                AppConst.bookGroupAudioId -> appDb.bookDao.observeAudio()
-                AppConst.bookGroupNoneId -> appDb.bookDao.observeNoGroup()
-                else -> appDb.bookDao.observeByGroup(groupId)
+                AppConst.bookGroupAllId -> appDb.bookDao.flowAll()
+                AppConst.bookGroupLocalId -> appDb.bookDao.flowLocal()
+                AppConst.bookGroupAudioId -> appDb.bookDao.flowAudio()
+                AppConst.bookGroupNoneId -> appDb.bookDao.flowNoGroup()
+                else -> appDb.bookDao.flowByGroup(groupId)
             }.collect { list ->
                 val books = when (getPrefInt(PreferKey.bookshelfSort)) {
                     1 -> list.sortedByDescending { it.latestChapterTime }

app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt

@@ -151,11 +151,11 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
         booksFlowJob?.cancel()
         booksFlowJob = lifecycleScope.launch {
             when (groupId) {
-                AppConst.bookGroupAllId -> appDb.bookDao.observeAll()
-                AppConst.bookGroupLocalId -> appDb.bookDao.observeLocal()
-                AppConst.bookGroupAudioId -> appDb.bookDao.observeAudio()
-                AppConst.bookGroupNoneId -> appDb.bookDao.observeNoGroup()
-                else -> appDb.bookDao.observeByGroup(groupId)
+                AppConst.bookGroupAllId -> appDb.bookDao.flowAll()
+                AppConst.bookGroupLocalId -> appDb.bookDao.flowLocal()
+                AppConst.bookGroupAudioId -> appDb.bookDao.flowAudio()
+                AppConst.bookGroupNoneId -> appDb.bookDao.flowNoGroup()
+                else -> appDb.bookDao.flowByGroup(groupId)
             }.collect { list ->
                 val booksDownload = list.filter {
                     it.isOnLineTxt()
@@ -176,7 +176,7 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
 
     private fun initGroupData() {
         lifecycleScope.launch {
-            appDb.bookGroupDao.liveDataAll().collect {
+            appDb.bookGroupDao.flowAll().collect {
                 groupList.clear()
                 groupList.addAll(it)
                 adapter.notifyDataSetChanged()

app/src/main/java/io/legado/app/ui/book/changesource/ChangeSourceDialog.kt

@@ -152,7 +152,7 @@ class ChangeSourceDialog : BaseDialogFragment(),
             adapter.setItems(it)
         })
         lifecycleScope.launch {
-            appDb.bookSourceDao.liveGroupEnabled().collect {
+            appDb.bookSourceDao.flowGroupEnabled().collect {
                 groups.clear()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))

app/src/main/java/io/legado/app/ui/book/group/GroupManageDialog.kt

@@ -81,7 +81,7 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.bookGroupDao.liveDataAll().collect {
+            appDb.bookGroupDao.flowAll().collect {
                 adapter.setItems(it)
             }
         }

app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt

@@ -109,7 +109,7 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.bookGroupDao.liveDataSelect().collect {
+            appDb.bookGroupDao.flowSelect().collect {
                 adapter.setItems(it)
             }
         }

app/src/main/java/io/legado/app/ui/book/local/ImportBookActivity.kt

@@ -126,7 +126,7 @@ class ImportBookActivity : VMBaseActivity<ActivityImportBookBinding, ImportBookV
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.bookDao.observeLocalUri().collect {
+            appDb.bookDao.flowLocalUri().collect {
                 adapter.upBookHas(it)
             }
         }

app/src/main/java/io/legado/app/ui/book/read/config/SpeakEngineDialog.kt

@@ -105,7 +105,7 @@ class SpeakEngineDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.httpTTSDao.observeAll().collect {
+            appDb.httpTTSDao.flowAll().collect {
                 adapter.setItems(it)
             }
         }

app/src/main/java/io/legado/app/ui/book/read/config/TocRegexDialog.kt

@@ -10,7 +10,6 @@ import android.view.ViewGroup
 import androidx.appcompat.widget.Toolbar
 import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.viewModels
-import androidx.lifecycle.LiveData
 import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.RecyclerView
@@ -33,13 +32,13 @@ import io.legado.app.ui.widget.recycler.VerticalDivider
 import io.legado.app.utils.*
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.launch
 import java.util.*
 
 class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
     private val importTocRuleKey = "tocRuleUrl"
     private lateinit var adapter: TocRegexAdapter
-    private var tocRegexLiveData: LiveData<List<TxtTocRule>>? = null
     var selectedName: String? = null
     private var durRegex: String? = null
     private val viewModel: TocRegexViewModel by viewModels()
@@ -93,12 +92,12 @@ class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
     }
 
     private fun initData() {
-        tocRegexLiveData?.removeObservers(viewLifecycleOwner)
-        tocRegexLiveData = appDb.txtTocRuleDao.observeAll()
-        tocRegexLiveData?.observe(viewLifecycleOwner, { tocRules ->
+        lifecycleScope.launch {
+            appDb.txtTocRuleDao.observeAll().collect { tocRules ->
                 initSelectedName(tocRules)
                 adapter.setItems(tocRules)
-        })
+            }
+        }
     }
 
     private fun initSelectedName(tocRules: List<TxtTocRule>) {

app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt

@@ -193,7 +193,7 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.bookSourceDao.liveGroupEnabled().collect {
+            appDb.bookSourceDao.flowGroupEnabled().collect {
                 groups.clear()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))
@@ -278,7 +278,7 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
                 binding.tvBookShow.gone()
                 binding.rvBookshelfSearch.gone()
             } else {
-                val bookFlow = appDb.bookDao.liveDataSearch(key)
+                val bookFlow = appDb.bookDao.flowSearch(key)
                 bookFlow.collect {
                     if (it.isEmpty()) {
                         binding.tvBookShow.gone()
@@ -294,8 +294,8 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
         historyFlowJob?.cancel()
         historyFlowJob = lifecycleScope.launch {
             when {
-                key.isNullOrBlank() -> appDb.searchKeywordDao.liveDataByUsage()
-                else -> appDb.searchKeywordDao.liveDataSearch(key)
+                key.isNullOrBlank() -> appDb.searchKeywordDao.flowByUsage()
+                else -> appDb.searchKeywordDao.flowSearch(key)
             }.collect {
                 historyKeyAdapter.setItems(it)
                 if (it.isEmpty()) {

app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt

@@ -207,20 +207,20 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
         sourceFlowJob = lifecycleScope.launch {
             when {
                 searchKey.isNullOrEmpty() -> {
-                    appDb.bookSourceDao.liveDataAll()
+                    appDb.bookSourceDao.flowAll()
                 }
                 searchKey == getString(R.string.enabled) -> {
-                    appDb.bookSourceDao.liveDataEnabled()
+                    appDb.bookSourceDao.flowEnabled()
                 }
                 searchKey == getString(R.string.disabled) -> {
-                    appDb.bookSourceDao.liveDataDisabled()
+                    appDb.bookSourceDao.flowDisabled()
                 }
                 searchKey.startsWith("group:") -> {
                     val key = searchKey.substringAfter("group:")
-                    appDb.bookSourceDao.liveDataGroupSearch("%$key%")
+                    appDb.bookSourceDao.flowGroupSearch("%$key%")
                 }
                 else -> {
-                    appDb.bookSourceDao.liveDataSearch("%$searchKey%")
+                    appDb.bookSourceDao.flowSearch("%$searchKey%")
                 }
             }.collect { data ->
                 val sourceList =
@@ -277,7 +277,7 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
 
     private fun initLiveDataGroup() {
         lifecycleScope.launch {
-            appDb.bookSourceDao.liveGroup()
+            appDb.bookSourceDao.flowGroup()
                 .collect {
                     groups.clear()
                     it.forEach { group ->

app/src/main/java/io/legado/app/ui/book/source/manage/GroupManageDialog.kt

@@ -68,7 +68,7 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.bookSourceDao.liveGroup().collect {
+            appDb.bookSourceDao.flowGroup().collect {
                 val groups = linkedSetOf<String>()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))

app/src/main/java/io/legado/app/ui/book/toc/BookmarkFragment.kt

@@ -53,8 +53,8 @@ class BookmarkFragment : VMBaseFragment<TocViewModel>(R.layout.fragment_bookmark
         bookmarkFlowJob?.cancel()
         bookmarkFlowJob = lifecycleScope.launch {
             when {
-                searchKey.isNullOrBlank() -> appDb.bookmarkDao.observeByBook(book.name, book.author)
-                else -> appDb.bookmarkDao.liveDataSearch(book.name, book.author, searchKey)
+                searchKey.isNullOrBlank() -> appDb.bookmarkDao.flowByBook(book.name, book.author)
+                else -> appDb.bookmarkDao.flowSearch(book.name, book.author, searchKey)
             }.collect {
                 adapter.setItems(it)
             }

app/src/main/java/io/legado/app/ui/book/toc/ChapterListFragment.kt

@@ -111,8 +111,8 @@ class ChapterListFragment : VMBaseFragment<TocViewModel>(R.layout.fragment_chapt
         tocFlowJob?.cancel()
         tocFlowJob = lifecycleScope.launch {
             when {
-                searchKey.isNullOrBlank() -> appDb.bookChapterDao.observeByBook(viewModel.bookUrl)
-                else -> appDb.bookChapterDao.liveDataSearch(viewModel.bookUrl, searchKey)
+                searchKey.isNullOrBlank() -> appDb.bookChapterDao.flowByBook(viewModel.bookUrl)
+                else -> appDb.bookChapterDao.flowSearch(viewModel.bookUrl, searchKey)
             }.collect {
                 adapter.setItems(it)
                 if (searchKey.isNullOrBlank() && !scrollToDurChapter) {

app/src/main/java/io/legado/app/ui/main/bookshelf/style1/BookshelfFragment1.kt

@@ -79,7 +79,7 @@ class BookshelfFragment1 : BaseBookshelfFragment(R.layout.fragment_bookshelf),
 
     private fun initBookGroupData() {
         lifecycleScope.launch {
-            appDb.bookGroupDao.liveDataShow().collect {
+            appDb.bookGroupDao.flowShow().collect {
                 viewModel.checkGroup(it)
                 upGroup(it)
             }

app/src/main/java/io/legado/app/ui/main/bookshelf/style1/books/BooksFragment.kt

@@ -107,11 +107,11 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
         booksFlowJob?.cancel()
         booksFlowJob = lifecycleScope.launch {
             when (groupId) {
-                AppConst.bookGroupAllId -> appDb.bookDao.observeAll()
-                AppConst.bookGroupLocalId -> appDb.bookDao.observeLocal()
-                AppConst.bookGroupAudioId -> appDb.bookDao.observeAudio()
-                AppConst.bookGroupNoneId -> appDb.bookDao.observeNoGroup()
-                else -> appDb.bookDao.observeByGroup(groupId)
+                AppConst.bookGroupAllId -> appDb.bookDao.flowAll()
+                AppConst.bookGroupLocalId -> appDb.bookDao.flowLocal()
+                AppConst.bookGroupAudioId -> appDb.bookDao.flowAudio()
+                AppConst.bookGroupNoneId -> appDb.bookDao.flowNoGroup()
+                else -> appDb.bookDao.flowByGroup(groupId)
             }.collect { list ->
                 binding.tvEmptyMsg.isGone = list.isNotEmpty()
                 val books = when (getPrefInt(PreferKey.bookshelfSort)) {

app/src/main/java/io/legado/app/ui/main/bookshelf/style2/BookshelfFragment2.kt

@@ -123,7 +123,7 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
 
     private fun initGroupData() {
         lifecycleScope.launch {
-            appDb.bookGroupDao.liveDataShow().collect {
+            appDb.bookGroupDao.flowShow().collect {
                 if (it != bookGroups) {
                     bookGroups = it
                     booksAdapter.notifyDataSetChanged()
@@ -136,11 +136,11 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
         booksFlowJob?.cancel()
         booksFlowJob = lifecycleScope.launch {
             when (groupId) {
-                AppConst.bookGroupAllId -> appDb.bookDao.observeAll()
-                AppConst.bookGroupLocalId -> appDb.bookDao.observeLocal()
-                AppConst.bookGroupAudioId -> appDb.bookDao.observeAudio()
-                AppConst.bookGroupNoneId -> appDb.bookDao.observeNoGroup()
-                else -> appDb.bookDao.observeByGroup(groupId)
+                AppConst.bookGroupAllId -> appDb.bookDao.flowAll()
+                AppConst.bookGroupLocalId -> appDb.bookDao.flowLocal()
+                AppConst.bookGroupAudioId -> appDb.bookDao.flowAudio()
+                AppConst.bookGroupNoneId -> appDb.bookDao.flowNoGroup()
+                else -> appDb.bookDao.flowByGroup(groupId)
             }.collect { list ->
                 binding.tvEmptyMsg.isGone = list.isNotEmpty()
                 books = when (getPrefInt(PreferKey.bookshelfSort)) {

app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt

@@ -103,7 +103,7 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_explo
 
     private fun initGroupData() {
         lifecycleScope.launch {
-            appDb.bookSourceDao.liveExploreGroup()
+            appDb.bookSourceDao.flowExploreGroup()
                 .collect {
                     groups.clear()
                     it.map { group ->
@@ -119,14 +119,14 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_explo
         exploreFlowJob = lifecycleScope.launch {
             val exploreFlow = when {
                 searchKey.isNullOrBlank() -> {
-                    appDb.bookSourceDao.liveExplore()
+                    appDb.bookSourceDao.flowExplore()
                 }
                 searchKey.startsWith("group:") -> {
                     val key = searchKey.substringAfter("group:")
-                    appDb.bookSourceDao.liveGroupExplore("%$key%")
+                    appDb.bookSourceDao.flowGroupExplore("%$key%")
                 }
                 else -> {
-                    appDb.bookSourceDao.liveExplore("%$searchKey%")
+                    appDb.bookSourceDao.flowExplore("%$searchKey%")
                 }
             }
             exploreFlow.collect {

app/src/main/java/io/legado/app/ui/main/rss/RssFragment.kt

@@ -122,7 +122,7 @@ class RssFragment : VMBaseFragment<RssSourceViewModel>(R.layout.fragment_rss),
 
     private fun initGroupData() {
         lifecycleScope.launch {
-            appDb.rssSourceDao.liveGroup().collect {
+            appDb.rssSourceDao.flowGroup().collect {
                 groups.clear()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))
@@ -136,12 +136,12 @@ class RssFragment : VMBaseFragment<RssSourceViewModel>(R.layout.fragment_rss),
         rssFlowJob?.cancel()
         rssFlowJob = lifecycleScope.launch {
             when {
-                searchKey.isNullOrEmpty() -> appDb.rssSourceDao.liveEnabled()
+                searchKey.isNullOrEmpty() -> appDb.rssSourceDao.flowEnabled()
                 searchKey.startsWith("group:") -> {
                     val key = searchKey.substringAfter("group:")
-                    appDb.rssSourceDao.liveEnabledByGroup("%$key%")
+                    appDb.rssSourceDao.flowEnabledByGroup("%$key%")
                 }
-                else -> appDb.rssSourceDao.liveEnabled("%$searchKey%")
+                else -> appDb.rssSourceDao.flowEnabled("%$searchKey%")
             }.collect {
                 adapter.setItems(it)
             }

app/src/main/java/io/legado/app/ui/replace/GroupManageDialog.kt

@@ -70,7 +70,7 @@ class GroupManageDialog : DialogFragment(), Toolbar.OnMenuItemClickListener {
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.replaceRuleDao.liveGroup().collect {
+            appDb.replaceRuleDao.flowGroup().collect {
                 val groups = linkedSetOf<String>()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))

app/src/main/java/io/legado/app/ui/replace/ReplaceRuleActivity.kt

@@ -180,14 +180,14 @@ class ReplaceRuleActivity : VMBaseActivity<ActivityReplaceRuleBinding, ReplaceRu
         replaceRuleFlowJob = lifecycleScope.launch {
             when {
                 searchKey.isNullOrEmpty() -> {
-                    appDb.replaceRuleDao.liveDataAll()
+                    appDb.replaceRuleDao.flowAll()
                 }
                 searchKey.startsWith("group:") -> {
                     val key = searchKey.substringAfter("group:")
-                    appDb.replaceRuleDao.liveDataGroupSearch("%$key%")
+                    appDb.replaceRuleDao.flowGroupSearch("%$key%")
                 }
                 else -> {
-                    appDb.replaceRuleDao.liveDataSearch("%$searchKey%")
+                    appDb.replaceRuleDao.flowSearch("%$searchKey%")
                 }
             }.collect {
                 if (dataInit) {
@@ -201,7 +201,7 @@ class ReplaceRuleActivity : VMBaseActivity<ActivityReplaceRuleBinding, ReplaceRu
 
     private fun observeGroupData() {
         lifecycleScope.launch {
-            appDb.replaceRuleDao.liveGroup().collect {
+            appDb.replaceRuleDao.flowGroup().collect {
                 groups.clear()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))

app/src/main/java/io/legado/app/ui/rss/article/RssArticlesFragment.kt

@@ -98,7 +98,7 @@ class RssArticlesFragment : VMBaseFragment<RssArticlesViewModel>(R.layout.fragme
         val rssUrl = activityViewModel.url ?: return
         articlesFlowJob?.cancel()
         articlesFlowJob = lifecycleScope.launch {
-            appDb.rssArticleDao.liveByOriginSort(rssUrl, viewModel.sortName).collect {
+            appDb.rssArticleDao.flowByOriginSort(rssUrl, viewModel.sortName).collect {
                 adapter.setItems(it)
             }
         }

app/src/main/java/io/legado/app/ui/rss/source/manage/GroupManageDialog.kt

@@ -70,7 +70,7 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.rssSourceDao.liveGroup().collect {
+            appDb.rssSourceDao.flowGroup().collect {
                 val groups = linkedSetOf<String>()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))

app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceActivity.kt

@@ -180,7 +180,7 @@ class RssSourceActivity : VMBaseActivity<ActivityRssSourceBinding, RssSourceView
 
     private fun initGroupFlow() {
         lifecycleScope.launch {
-            appDb.rssSourceDao.liveGroup().collect {
+            appDb.rssSourceDao.flowGroup().collect {
                 groups.clear()
                 it.map { group ->
                     groups.addAll(group.splitNotBlank(AppPattern.splitGroupRegex))
@@ -234,14 +234,14 @@ class RssSourceActivity : VMBaseActivity<ActivityRssSourceBinding, RssSourceView
         sourceFlowJob = lifecycleScope.launch {
             when {
                 searchKey.isNullOrBlank() -> {
-                    appDb.rssSourceDao.liveAll()
+                    appDb.rssSourceDao.flowAll()
                 }
                 searchKey.startsWith("group:") -> {
                     val key = searchKey.substringAfter("group:")
-                    appDb.rssSourceDao.liveGroupSearch("%$key%")
+                    appDb.rssSourceDao.flowGroupSearch("%$key%")
                 }
                 else -> {
-                    appDb.rssSourceDao.liveSearch("%$searchKey%")
+                    appDb.rssSourceDao.flowSearch("%$searchKey%")
                 }
             }.collect {
                 adapter.setItems(it, adapter.diffItemCallback)

app/src/main/java/io/legado/app/ui/rss/subscription/RuleSubActivity.kt

@@ -64,7 +64,7 @@ class RuleSubActivity : BaseActivity<ActivityRuleSubBinding>(),
 
     private fun initData() {
         lifecycleScope.launch {
-            appDb.ruleSubDao.observeAll().collect {
+            appDb.ruleSubDao.flowAll().collect {
                 binding.tvEmptyMsg.isGone = it.isNotEmpty()
                 adapter.setItems(it)
             }