Skip to content

Latest commit

 

History

History
109 lines (60 loc) · 4.51 KB

Flutter.md

File metadata and controls

109 lines (60 loc) · 4.51 KB
Raw

CSoC-23-Week2-Flutter

Asynchronous code in Dart & Flutter

You must have encountered keywords like async, await and Future till now. These are very important blocks that one should comprehend.

Get this concept with this video created by Google developers themselves

Async/Await - Flutter in Focus Asynchronous programming

For a better understanding about asynchronous code you can also watch: Asynchronous programming for beginners

Storing data locally

Persisting Key-Value based data using SharedPreferences

There are a lot of options for storing data locally. The most basic one is using the shared_preferences plugin.

Here is a video explaining the shared_preferences plugin

Flutter: Shared Preferences In 5 Minutes | Data Persistence

And a more detailed one: Flutter Tutorial - Shared Preferences

or you can read this tutorial: Using Shared Preferences in Flutter to store data locally

And what’s better than the Flutter documentations themselves :) Store key-value data on disk

Although key-value storage is easy and convenient to use, it has limitations:

  • Only primitive types can be used: int, double, bool, string, and stringList.
  • It’s not designed to store a lot of data.

sqflite plugin overcomes these limitations.

Persist and Query data locally on the device with SQLite.

What is SQLite?

Before moving any forward, you must know what exactly is SQLite. The following tutorial gives you a brief overview of the same.

What is SQLite? Top SQLite Features You Should Know

Creating a local SQLite database using sqflite package Flutter

Here comes the Flutter part.

There are a bunch of packages available to store data locally on the device, but the one recommended by Flutter is the "sqflite" package which is an SQLite plugin for Flutter.

Here is a short video by Flutter team explaining the sqflite package

sqflite (Flutter Package of the Week)

Now, let's read and learn about the sqflite plugin! Here are the official docs from Flutter team Persist data with SQLite

You can also go through the following links regarding sqflite plugin: SQFlite Database in Flutter

or if you are more of a video person

Flutter Tutorial - SQL Database Storage Using Sqlite & Sqflite CRUD | Android & iOS

The sqflite Alternative

sqflite is all you need for storing structured data locally therefore, explore this section only when you are done with sqflite.

Hive

Hive is a key-value (NoSQL) based database that is much faster than sqflite.

Hive Docs

A beginners tutorial to Hive

Hive (Flutter Tutorial) - Lightweight & Fast NoSQL Database in Pure Dart

Bonus Task: Scheduling Local Notification

What is difference between local notification and push notification?

Let’s learn the difference between local and push(cloud) notification

Understanding the Advanced Features of the iOS SDK

Local Notification using flutter_local_notification

Now for adding local notification to your app you can use flutter_local_notification package.

You can get an insight on how to use it by reading these blogs:

Flutter Local Notification

Implementing local notifications in Flutter

Or if you like watching and learning:

https://www.youtube.com/watch?v=8yJKWy9G9ew

Submissions