优化

app/src/main/java/io/legado/app/help/source/SourceHelp.kt

@@ -61,16 +61,20 @@ object SourceHelp {
     }
 
     fun deleteBookSourceParts(sources: List<BookSourcePart>) {
+        appDb.runInTransaction {
             sources.forEach {
                 deleteBookSourceInternal(it.bookSourceUrl)
             }
+        }
         AppCacheManager.clearSourceVariables()
     }
 
     fun deleteBookSources(sources: List<BookSource>) {
+        appDb.runInTransaction {
             sources.forEach {
                 deleteBookSourceInternal(it.bookSourceUrl)
             }
+        }
         AppCacheManager.clearSourceVariables()
     }
 
@@ -86,9 +90,11 @@ object SourceHelp {
     }
 
     fun deleteRssSources(sources: List<RssSource>) {
+        appDb.runInTransaction {
             sources.forEach {
                 deleteRssSourceInternal(it.sourceUrl)
             }
+        }
         AppCacheManager.clearSourceVariables()
     }