优化

app/src/main/java/io/legado/app/data/AppDatabase.kt

@@ -16,8 +16,9 @@ import kotlinx.coroutines.launch
 @Database(
     entities = [Book::class, BookGroup::class, BookSource::class, BookChapter::class,
         ReplaceRule::class, SearchBook::class, SearchKeyword::class, Cookie::class,
-        RssSource::class, Bookmark::class, RssArticle::class, RssStar::class, TxtTocRule::class],
+        RssSource::class, Bookmark::class, RssArticle::class, RssReadRecord::class,
-    version = 7,
+        RssStar::class, TxtTocRule::class],
+    version = 8,
     exportSchema = true
 )
 abstract class AppDatabase : RoomDatabase() {

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

@@ -3,6 +3,7 @@ package io.legado.app.data.dao
 import androidx.lifecycle.LiveData
 import androidx.room.*
 import io.legado.app.data.entities.RssArticle
+import io.legado.app.data.entities.RssReadRecord
 
 @Dao
 interface RssArticleDao {
@@ -10,7 +11,11 @@ interface RssArticleDao {
     @Query("select * from rssArticles where origin = :origin and link = :link")
     fun get(origin: String, link: String): RssArticle?
 
-    @Query("select * from rssArticles where origin = :origin order by `order` desc")
+    @Query(
+        """select t1.link, t1.origin, t1.`order`, t1.title, t1.content, t1.description, t1.image, t1.pubDate, ifNull(t2.read, 0) as read
+        from rssArticles as t1 left join rssReadRecords as t2
+        on t1.link = t2.record  where origin = :origin order by `order` desc"""
+    )
     fun liveByOrigin(origin: String): LiveData<List<RssArticle>>
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
@@ -24,4 +29,7 @@ interface RssArticleDao {
 
     @Query("delete from rssArticles where origin = :origin")
     fun delete(origin: String)
+
+    @Insert(onConflict = OnConflictStrategy.IGNORE)
+    fun insertRecord(vararg rssReadRecord: RssReadRecord)
 }

app/src/main/java/io/legado/app/data/entities/RssReadRecord.kt

@@ -0,0 +1,7 @@
+package io.legado.app.data.entities
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "rssReadRecords")
+data class RssReadRecord(@PrimaryKey val record: String, val read: Boolean = true)

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

@@ -6,6 +6,7 @@ import androidx.lifecycle.MutableLiveData
 import io.legado.app.App
 import io.legado.app.base.BaseViewModel
 import io.legado.app.data.entities.RssArticle
+import io.legado.app.data.entities.RssReadRecord
 import io.legado.app.data.entities.RssSource
 import io.legado.app.model.Rss
 import kotlinx.coroutines.Dispatchers.IO
@@ -101,8 +102,7 @@ class RssArticlesViewModel(application: Application) : BaseViewModel(application
 
     fun read(rssArticle: RssArticle) {
         execute {
-            rssArticle.read = true
+            App.db.rssArticleDao().insertRecord(RssReadRecord(rssArticle.link))
-            App.db.rssArticleDao().update(rssArticle)
         }
     }