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Flutter (State management (Provider (Последовательности (Create provider,…

- - - - immutable
  - - - Create provider
      - Connect provider with widgets that need this data
      - Listen or subscribe to state
      - Data change == rebuild widgets which subs
    - - ChangeNotifierProvider()
        
        don't clear memory
      - ChangeNotifierProvier.value()
        
        clear memory
- - - - width
      - height
    - - return devices font scale
    - - portrait
      - landscape
  - - - maxHeight
      - minHeight
- - - - RaisedButton
      - FlatButton
      - IconButton
  - - - properties
        
        context
    - - properties
        
        context
      - functions
        
        setState()
  - - - Not scrollable
      - get all available height
    - - default
        
        Not scrollable
      - take full width
      - mainAxis ->
      - crosAxis: up to down
    - - ListTile
    - - properties
        
        elevetion
    - - properties
        
        fit
        
        tight
        
        loose
    - - griedView.builder
    - - Берет полную свободную ширину или высоту
  - - - constructor()
      - build()
    - - constructor()
      - initState
      - build()
      - setState()
      - didUpdateWidget()
      - build()
      - dispose()
  - - - Every widget has context
      - info about widget
      - its location
- - - - on AppStore