Flutter初心者

Isar Database Operations: Class Definition and CRUD Operations

今回はより詳しいデータ操作の方法について、ご紹介しようと思います。開発の参考になれば、幸いです！コレクションの定義方法 NoSQLでは、コレクションとドキュメントでデータが管理されます。リレーショナルデータベースで言うと以下のイメージです。　コレクション＝テーブル　ドキュメント＝レコード Isarのコレクションを定義するには、データ構造をクラスとして定義する必要があります。基本的なコレクションの定義 Isarでのデータクラスは、@collectionアノテーションを使用して定義します。以下は、Emailという名前のコレクションを定義する例です。

What is Flutter’s pubspec.yaml? An Introduction to Its Meaning and Syntax!

The "pubspec.yaml" is the configuration file for the Flutter project, It contains the application name, description, version information, and package information on which the project depends, It manages the application name, description, version information, packages the project depends on, the version of those packages, and so on.

Has It Finally Arrived? Full-Text Search (Vector Search) in Firestore

Firestore enables full-text search (vector search) without using third-party tools. In this issue, we will introduce the detailed procedure.

What Exactly is “MVVM” in App Development?

What is MVVM (Model-View-ViewModel), Separate the application logic and UI (user interface), MVVM (Model-View-ViewModel) is a software design method that aims to improve development efficiency and maintainability by separating the application logic and UI (user interface). It is one of the methods to design for each role such as "screen display," "data manipulation," and "data definition. MVC is a similar approach. Translated with www.DeepL.com/Translator (free version)

What is Riverpod, Flutter’s most major state management!

StatefulWidget," introduced previously, is another function that manages states, When implementing an application with multiple screens and functions, the number of states to manage increases and management becomes difficult. Riverpod is a wonderful package that makes such state management easy. In this article, we will discuss Riverpod.

DartFlutterpackage

What is Flutter? An overview of Flutter

You may have a rough understanding of "Flutter" as "something for developing mobile apps," but here is an overview for those who want to know more. But for those who want to know more about Flutter, here is an overview.

What to do when VS Code says “The Flutter SDK is installed in a protected folder and may not function correctly

What to do when VS Code says "The Flutter SDK is installed in a protected folder and may not function correctly

ErrorFlutterpackage

Troubleshooting When “freezed.dart” Files Are Not Generated

When designing an immutable class using freezed, I have included a workaround for when the class name.freezed.dart file is not automatically generated when the command is run in the terminal.

ErrorFlutterpackage

[Basics] Local DB! Introducing Isar Database

Isar Database is a fast cross-platform database for Flutter. It is used to store app data locally and persistently. There are other local databases available, but Isar Database is easy to set up It is easy to set up and popular with beginners.

Flutter Basics! StatelessWidget and StatefulWidget!

Of Widget, 　Widget that does not retain the value state → StatelessWidget, 　Widget that preserves the value state → StatefulWidget Widget that preserves the value state.