1<?xml version="1.0" encoding="utf-8"?> 2<!-- 3 ~ Copyright 2018 The Android Open Source Project 4 ~ 5 ~ Licensed under the Apache License, Version 2.0 (the "License"); 6 ~ you may not use this file except in compliance with the License. 7 ~ You may obtain a copy of the License at 8 ~ 9 ~ http://www.apache.org/licenses/LICENSE-2.0 10 ~ 11 ~ Unless required by applicable law or agreed to in writing, software 12 ~ distributed under the License is distributed on an "AS IS" BASIS, 13 ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ~ See the License for the specific language governing permissions and 15 ~ limitations under the License. 16 --> 17<navigation xmlns:android="http://schemas.android.com/apk/res/android" 18 xmlns:app="http://schemas.android.com/apk/res-auto" 19 xmlns:tools="http://schemas.android.com/tools" 20 app:startDestination="@+id/first_screen"> 21 <fragment android:id="@+id/first_screen" 22 android:name="androidx.navigation.testapp.MainFragment"> 23 <argument android:name="myarg1" android:defaultValue="one" /> 24 <action android:id="@+id/next" app:destination="@+id/next_fragment"> 25 <argument android:name="randomArgument"/> 26 </action> 27 </fragment> 28 <fragment android:id="@+id/next_fragment" 29 android:name="androidx.navigation.testapp.ModifiedNextFragment"> 30 <action android:id="@+id/next" app:destination="@+id/first_screen"/> 31 <action android:id="@+id/finish" app:popUpTo="@id/first_screen" /> 32 </fragment> 33</navigation>