Dart + Flutter

Architecture

State

• redux - just as good in dart
• redux_thunk - everything is an action
• redux_persist - control in memory and cold storage data from store

Serialization

• dart_json_mapper - generates toJson/fromJson for models but does so at build time, files generated are not saved to filesystem - supports Uint8List which will be used wherever cached images are supported
• json_serializable does not support Uint8List / byte arrays in models**

Storage

• flutter_secure_storage - uses respective platform keychains to save store
• sqlcipher sqlite, but encrypted
• sembast - nosql storage for flutter/dart
• hive - nosql storage, but tightly coupled to encryption and serialization, should attempt to serialize with a separate library and cache with a different library
  • previous Hive user that converted to sembast

Flow

• Using redux with streams

  • Timer+Store vs. Stream

    • The store itself is a stream that can be observed / listened to
    • The only thing different between them is where you want the stream within the store observed from? the view or still within the store
    • Within the store has an extra layer, but has a separation of concerns

  • Example is initializing a chat observer after authentication

    • Leaving this in the view is less friction with streams on streams
    • But you sacrifice separation of concerns

  • StreamController example

  • Converted to streams from using the global onChange and it's noticeably faster

Patterns

JS

const newUsers = users.filter(user => user.new);

Dart

final newUsers = users.where(user => user.new).toList();

UI/UX

• Use containers that span the height and width of the screen when creating scroll views
• Implicit Animations Tutorial

Resources

• showing a more global snackbar
• https://flutter.dev/docs/cookbook/forms/focus
• Space invaders in flutter link

Research

manual serialization

- incredibly overwhelming for complex models
- seems to be a better idea for the higher level containers, or Stores  

dart_json_mapper for Json

- [lists need decorator functions](https://github.com/k-paxian/dart-json-mapper/issues/17)
- for non-store types, is sort of working without the need for toJsons

RawSerialization

- consider serializing as raw byte stings?

Consistant Flex Structuring

- Flexible -> Flex -> Container