How to send data with NavigationComponent in Android-CodePudding

In my application I have 2 fragment and for show these I use NavigationComponent and I want sent some data.
My navigation codes:

<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@ id/nav_home"
    app:startDestination="@id/recipesFragment">

    <fragment
        android:id="@ id/recipesFragment"
        android:name="myapp.ui.fragments.recipe.RecipesFragment"
        android:label="@string/recipes"
        tools:layout="@layout/fragment_recipes" >
        <action
            android:id="@ id/action_recipesFragment_to_menuFragment"
            app:destination="@id/menuFragment" />
        <argument
            android:name="isUpdatedData"
            app:argType="boolean"
            android:defaultValue="false" />
    </fragment>

    <dialog
        android:id="@ id/menuFragment"
        android:name="myapp.ui.fragments.recipe.menu.MenuFragment"
        android:label="fragment_menu"
        tools:layout="@layout/fragment_menu" >
        <action
            android:id="@ id/action_menuFragment_to_recipesFragment"
            app:destination="@id/recipesFragment" />
    </dialog>
</navigation>

I set argument with default value, but when use this action into MenuFragment not access to me for set value!
MenuFragment codes:

submitBtn.setOnClickListener {
                val action = MenuFragmentDirections.actionMenuFragmentToRecipesFragment(true)
                findNavController().navigate(action)
            }

When write true for value of actionMenuFragmentToRecipesFragment show me below error:

Too many arguments for public open fun actionMenuFragmentToRecipesFragment(): MenuFragmentDirections.ActionMenuFragmentToRecipesFragment defined in myapp.ui.fragments.recipe.menu.MenuFragmentDirections

How can I fix it and set data with defaultValue?

CodePudding user response：

Hi I hope this answer be useful for you if you would like to use default value below code will help you: findNavController().navigate(MenuFragmentDirections.actionMenuFragmentToRecipesFragment().setIsUpdatedData(true)) when you set default value for your argument compiler recognize code does not need setter and if you want change it you have to call setter method of argument in your navigation for custom fragment

CodePudding user response：

The action_menuFragment_to_recipesFragment has not defined that it takes in an argument. You should write it like this:

<dialog
    android:id="@ id/menuFragment"
    android:label="fragment_menu"
    android:name="myapp.ui.fragments.recipe.menu.MenuFragment"
    tools:layout="@layout/fragment_menu">

    <action
        android:id="@ id/action_menuFragment_to_recipesFragment"
        app:destination="@id/recipesFragment">

        <argument
            android:name="isUpdatedData"
            app:argType="boolean"
            android:defaultValue="false" />

    </action>

</dialog>

This way you can both navigate from the MenuFragment to the RecipesFragment with or without any arguments:

// With argument

findNavController().navigate(
    MenuFragmentDirections.actionMenuFragmentToRecipesFragment(true)
)

// OR without argument (default value = false)

findNavController().navigate(
    MenuFragmentDirections.actionMenuFragmentToRecipesFragment()
)