优化

app/src/main/java/io/legado/app/ui/book/read/page/provider/ImageProvider.kt

@@ -15,7 +15,9 @@ import io.legado.app.model.localBook.EpubFile
 import io.legado.app.utils.BitmapUtils
 import io.legado.app.utils.FileUtils
 import io.legado.app.utils.isXml
+import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.withContext
 import splitties.init.appCtx
 import java.io.File
 import java.io.FileOutputStream
@@ -59,6 +61,7 @@ object ImageProvider {
         src: String,
         bookSource: BookSource?
     ): File {
+        return withContext(IO) {
             val vFile = BookHelp.getImage(book, src)
             if (!vFile.exists()) {
                 if (book.isEpub()) {
@@ -73,7 +76,8 @@ object ImageProvider {
                     BookHelp.saveImage(bookSource, book, src)
                 }
             }
-        return vFile
+            return@withContext vFile
+        }
     }
 
     /**