Is it possible to use the new Navigation Architecture Component with DialogFragment? Do I have to create a custom Navigator?
I would love to use them with the new features in my navigation graph.
May 2019 Update:
DialogFragment are now fully supported starting from
Navigation 2.1.0
, you can read more here and here
Old Answer for Navigation <= 2.1.0-alpha02:
I proceeded in this way:
1) Update Navigation
library at least to version 2.1.0-alpha01
and copy both files of this modified gist in your project.
2) Then in your navigation host fragment, change the name
parameter to your custom NavHostFragment
<fragment
android:id="@+id/nav_host_fragment"
android:name="com.example.app.navigation.MyNavHostFragment"
app:defaultNavHost="true"
app:navGraph="@navigation/nav_graph"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/toolbar" />
3) Create your DialogFragment
subclasses and add them to your nav_graph.xml
with:
<dialog
android:id="@+id/my_dialog"
android:name="com.example.ui.MyDialogFragment"
tools:layout="@layout/my_dialog" />
4) Now launch them from fragments or activity with
findNavController().navigate(R.id.my_dialog)
or similar methods.