State Value

Tools to represent values that can be found in multiple states and display them easily in Android.

StateValue

StateValue is a wrapper type that allows you to easily represent values which are loaded asynchronously and which can be then in various states depending on the asynchronous call, such as a loading or error. It allows you to represent six states described here:

• NoValue
  • Missing: The value is missing and it is not loading nor in error
  • Loading (LoadingState): The value is loading and it does not encapsulate a previous loaded value
  • Error (ErrorState): The value was not loaded because of an error and it does not encapsulate a previous loaded value
• WithValue
  • Loading (LoadingState): The value is loading and it does encapsulate a previous loaded value
  • Error (ErrorState): The value was not loaded because of an error but it does encapsulate a previous loaded value
  • Value: The value is loaded

Cases implementing ErrorState could provide an object E to provide more info about the error Cases implementing LoadingState could provide a LoadingState.Progress` representing the progress of the loading process from 0 to 100.

It provides also methods to move a StateValue into another state respecting the semantic of the type:

• copyToMissing()
• copyToLoading()
• copyToError()
• copyToValue()

StateValueView

TODO