优化

app/src/main/java/io/legado/app/api/controller/BookSourceController.kt

@@ -46,13 +46,14 @@ object BookSourceController {
         val okSources = arrayListOf<BookSource>()
         val bookSources = GSON.fromJsonArray<BookSource>(postData)
         if (bookSources != null) {
-            for (bookSource in bookSources) {
-                if (bookSource.bookSourceName.isBlank() || bookSource.bookSourceUrl.isBlank()) {
-                    continue
-                }
+            bookSources.forEach { bookSource ->
+                if (bookSource.bookSourceName.isNotBlank()
+                    && bookSource.bookSourceUrl.isNotBlank()
+                ) {
                     appDb.bookSourceDao.insert(bookSource)
                     okSources.add(bookSource)
                 }
+            }
         } else {
             return ReturnData().setErrorMsg("转换源失败")
         }