test

.idea/misc.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="JDK" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/src/main/java/com/yono/messeripos/MainActivity.java

@@ -98,6 +98,7 @@ public class MainActivity extends AppCompatActivity {
             }
         });
 
+
         mainViewModels = ViewModelProviders.of(this).get(MainViewModels.class);
         mainViewModels.getProduct().observe(this, new Observer<DataResponse<List<ProductModels<CategoryModels>>>>() {
             @Override