Android Realm - Accessing Realm Object from Service

Question

I have a realm object that is created in my activity. I need to be able to access this object within a service that I created. However I\'m getting the error when creating t

Answer 1

Technically you're supposed to open the Realm instance at the beginning of the background thread, close it at the end of execution in that background that, and pass it to methods in between.

public void handleIntent() { // or doInBackground etc
    Realm realm = null;
    try {
         realm = Realm.getDefaultInstance();
         .... 
         MyObj obj = realm.where(MyObj.class)
                          .equalTo(MyObjFields.ID, myObjId)
                          .findFirst(); // get by id
         .... 
    } finally {
         if(realm != null) {
              realm.close(); // important 
         } 
    } 
} 

Using realm.copyFromRealm() is a workaround, not a solution.

---

With AS 3.0, you can actually use try-with-resources no matter what your minSDK is (just like if you were using Retrolambda):

public void handleIntent() { // or doInBackground etc
    try(Realm realm = Realm.getDefaultInstance()) {
         .... 
         MyObj obj = realm.where(MyObj.class)
                          .equalTo(MyObjFields.ID, myObjId)
                          .findFirst(); // get by id
         .... 
    } // auto-close
}