Passing data from one Ragment to another

Question

I want to pass data from one Ragment to another, but the code works but does not pass the data. Someone can help me in this?

I wish to go from ListaPokemonsFragment for DetalhesPokemonFragment

ListaPokemonsFragment:

// acao de ir para os detalhes do pokemon clicado
private fun goToDetalhes(pokemon: PokemonItem){
    val direcao = ListaPokemonsFragmentDirections
        .actionListaPokemonsToDetalhesPokemons(pokemon)
    controlador.navigate(direcao)
}

DetalhesPokemonFragment

private fun configDetalhes() {
   viewModel.getDetalhes(pokemon.id)
    viewModel.mResponse.observe(viewLifecycleOwner, {
        if(it.isSuccessful){
            tv_detalhes_nome_pokemon.text = it.body()?.nome
        }
    })
}

navigation:

<fragment
  android:id="@+id/detalhesPokemons"
  tools:layout="@layout/detalhes_pokemon"
  android:name="com.example.pokedex.ui.detalhesPokemons.DetalhesPokemonsFragment"
  android:label="Detalhes Pokemons" >
  <argument
      android:name="pokemon"
      app:argType="com.example.pokedex.model.PokemonItem" />
</fragment>

Answer 1

• Puts your argument inside the initial fragment action ( What has the action of going to a destination) for example:

    <fragment
        android:id="@+id/listPokemonsFragment"
        android:name="seu.pacote.aqui.ListPokemonsFragment"
        android:label="fragment_listPokemons"
        tools:layout="@layout/fragment_list_pokemons" >
        <action
            android:id="@+id/action_listPokemonsFragment_to_DetalhesPokemonFragment"
            app:destination="@id/fragment_detalhes_pokemon">
            <argument
                android:name="pokemon"
                app:argType="com.example.pokedex.model.PokemonItem" />
        </action>
    </fragment>

• In Detailsespokemonfragment you will receive the Pokemonitem in Bundle with the same name you gave in argument name attribute:

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        arguments?.let {
            pokemonItem = it.getSerializable("pokemon")
        }
    }

Remember that your class needs to implement the Serializable or Parcelable interface to send and receive in the Bundle. You can do this by consulting here https://stackoverflow.com/questions/5784231/how-to-pass-custom-object-in-bundle