优化

app/src/main/java/io/legado/app/ui/association/OnLineImportActivity.kt

@@ -76,7 +76,6 @@ class OnLineImportActivity :
                     )
                     else -> {
                         viewModel.determineType(url, this::finallyDialog)
-                        finish()
                     }
                 }
             }

app/src/main/java/io/legado/app/ui/association/OnLineImportViewModel.kt

@@ -164,6 +164,7 @@ class OnLineImportViewModel(app: Application) : BaseViewModel(app) {
                             importTextTocRule(json, finally)
                         json.contains("name") && json.contains("url") ->
                             importTextTocRule(json, finally)
+                        else -> errorLive.postValue("格式不对")
                     }
                 }
             }