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Android - Coggle Diagram

- - - - An intent is an abstract description of an operation to be performed. It can be used with startActivity to launch an Activity, broadcastIntent to send it to any interested BroadcastReceiver components, and Context.startService(Intent) or Context.bindService(Intent, BindServiceFlags, Executor, ServiceConnection) to communicate with a background Service
      - About
        
        used in Android to pass to the data from one activity to another
    - - what is not ?
        
        not a separate process
        
        not a thread
      - service lifecycle
        
        main features
        
        Context.startService()
        
        A facility for the application to tell the system about something it wants to be doing in the background
        
        Context.bindService()
        
        A facility for an application to expose some of its functionality to other applications
        
        allows a long-standing connection to be made to the service in order to interact with it
        
        onCreate()
        
        instantiate the component
        
        Context.stopService()
        
        stops service
        
        onStartCommand(Intent, int, int)
    - - types
        
        AppCompatActivity :link:
      - about
        
        focused thing that the user can do
        
        takes care of creating a window for you in which you can place your UI
    - - generally used for passing data from one activity to another
- - - - namespace
        
        key use cases
        
        Code Generation: Ensures proper scoping for generated classes like R and BuildConfig.
        
        Modularization: Allows each module to define its own namespace, making it easier to manage and reuse.
      - androidId
        
        unique identifier for your app in the Google Play Store
- - - - testing
        
        UI
        
        expresso