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Navigation models

Navigation model is a core concept of Appyx.

What's a NavModel?

Navigation models describe navigation itself – by the states and operations they define, any custom navigation mechanism can be implemented.

NavModel capabilities differ across implementations, however, typically:

  1. They store information on the states of all children
  2. They behave like a state machine
  3. They offer some public API to trigger changing the state of children

Some examples of navigation models

You can take a look at some of these examples:

  1. Back stack
  2. Spotlight
  3. Tiles
  4. Promoter carousel

When you feel ready, you can try to implement your own NavModel.

What does a NavModel not do?

The NavModel represents only the model, not the looks: