![]() ![]() Easy to install: in iOS, it is very simple to install Realm in applications.In this section of the tutorial, we will discuss the advantages and disadvantages of the Realm database. It is easier to use and also requires less code to retrieve and store the data. Realm is superior to other mobile databases in terms of speed. It is mainly designed to be easy to use as it not an ORM as it uses its persistence engine to provide speed and performance. Realm is an alternative for the mobile databases as currently, we don't have many options other than SQLite or any wrapper that works on the top of SQLite, such as CoreData. ![]() It is free to use for iOS and Android apps without any limits. It's easier to use and requires less code to store and retrieve data. It works better and faster than SQLite and CoreData for iOS applications. Realm is a database that is built to target mobile applications for iOS and Android. We will discuss the basic CRUD (create, read, update, delete) operations with the database. In this tutorial, we will create a new iOS project to use Realm to store the data. It is free of charge for unlimited use until we take advantage of Realm's Cloud features. It is faster and easier to use than CoreData and SQLite. The realm is an alternative to Apple's CoreData. We have used SQLite and CoreData to persist the data in iOS applications. MainActivity.java public class MainActivity extends AppCompatActivity implements View.Next → ← prev Using Realm database in iOS app Layout part is done, so now let’s move towards the coding part of the first activity.ĥ.3 Update MainActivity.java file with the following code I will inflate this layout file to ListView, that I have declared in content_main.xml layout file. This layout file contains one textview for displaying names & two ImageViews for Update/ Delete operation. Now to add names in ListView at runtime, I have to create one layout which inflates to ListView at runtimeĥ.2 Create inflate_list_item.xml layout file In this layout file, I have used ListView (You can change the properties of a ListView as per your application requirements) to display list of names. In my example, is used to display list of names of persons. Give appropriate name to that layout file. To create layout file, right click on and select resource file. checks to disallow null should not be persisted to a search index to the identifies each record in the databaseĥ.1 Update content_main.xml file with the following code Here, I used annotation to declare id as a primary key int id Using these types, it is possible to set the value of a field to null. The boxed types Boolean, Byte, Short, Integer, Long, Float, Double can also be used in model class. Realm supports boolean, byte, short, int, long, float, double, string, date, byte data types. Which means my table has 5 columns namely: Here, I have declared 5 parameters in my model class. Model class should contain as many parameters as you want as columns in table. PersonDetailsModel.java public class PersonDetailsModel extends int id Model class must extend RealmObject class to use behaviour of Realm Database To create model class ,click on file > new > Java Class. Step 4 Create Model Class for Realm Database
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