![]() ![]() There are two constructors of SQLiteOpenHelper class. ![]() For performing any database operation, you have to provide the implementation of onCreate() and onUpgrade() methods of SQLiteOpenHelper class. The class is used for database creation and version management. SQLiteOpenHelper class provides the functionality to use the SQLite database. For displaying data on the spinner or listview, move to the next page. Here, we are going to see the example of sqlite to store and fetch the data. So, there is no need to perform any database setup or administration task. used to perform database operations on android devices such as storing, manipulating or retrieving persistent data from the database. ")ītIcon(android.R.drawable.ic_dialog_alert)īuilder.SQLite is an open-source relational database i.e. Override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder. * ViewHolder} and initializes some private fields to be used by RecyclerView. ![]() * Inflates the item views which is designed in the XML layout file Moreover, the onUpgrade() method is used to update the database schema to the most recent or, let’s say, the existing without losing the data:Ĭlass ItemAdapter(val context: Context, val items: ArrayList) : OnCreate() invoked if the database doesn’t exist, meaning the very first time dealing with the SQLite database. There are the onCreate() and onUpgrade() methods. It is responsible for opening the database if it exists, creating if it does not exists and upgrading if required. The SQLiteOpenHelper class is used to determine the name and version of the database used in this class. Three main components are used to handle SQLite operations in Android: SQLiteOpenHelper Class To use the SQLite database in the Android application, the main package will be. For many applications in Android, SQLite is the backbone of the app, whether it’s used directly or via some third-party wrapper. ![]() It is better than any other repository systems like SharedPreferences or saving data in files. In Android, whenever an application needs to store a large amount of data the SQLite is the most preferred. You don’t need to establish any connections like JDBC, ODBC, or any other external connection for it, like what you will need to do in java applications. SQLite is a build-in database implementation that comes with Android. SQLite database supports all the relational database features. SQLite database is an opensource, lightweight, no network access, and standalone SQL database that stores data to a text file on a device. Using android SQLite database I will show you how to perform all the crud operations like Create, Insert, Update, and Delete. In this article, you will learn about the Android SQLite Database in-depth with a good example. ![]()
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