Navigation不跳转问题解决

今天用到Navigation来控制fragmnet导航，遇到了一个情况，bottomNavigationView.setupWithNavController(control)和菜单绑定后，菜单点击无效果，页面不能跳转；

代码很简单：

依赖版本：

androidx-navigation-fragment-ktx = { group = "androidx.navigation", name = "navigation-fragment-ktx", version = "2.5.3" }
androidx-navigation-ui-ktx = { group = "androidx.navigation", name = "navigation-ui-ktx", version = "2.5.3" }

布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <fragment
        android:id="@+id/nav_host_fragment_content_main"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"
        app:defaultNavHost="true"
        app:navGraph="@navigation/navigation_graph"
        />

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/nav_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="0dp"
        android:layout_marginEnd="0dp"
        android:background="?android:attr/windowBackground"
        app:menu="@menu/navigation_menu"/>
</LinearLayout>

activity代码：

package com.example.mynavigation

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import androidx.navigation.Navigation
import androidx.navigation.findNavController
import androidx.navigation.ui.AppBarConfiguration
import androidx.navigation.ui.NavigationUI
import androidx.navigation.ui.setupActionBarWithNavController
import androidx.navigation.ui.setupWithNavController
import com.google.android.material.bottomnavigation.BottomNavigationView

class MainActivity : AppCompatActivity() {
    private lateinit var bottomNavigationView: BottomNavigationView;
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        if(!::bottomNavigationView.isInitialized){
            bottomNavigationView = findViewById(R.id.nav_view)
        }
        var control = findNavController(R.id.nav_host_fragment_content_main)
        //val appBarConfiguration = AppBarConfiguration(
        //    setOf(
        //        R.id.fragment_first, R.id.fragment_second, R.id.fragment_third
        //    )
        //)
        //setupActionBarWithNavController(control, appBarConfiguration)
        //NavigationUI.setupActionBarWithNavController(this, navController, configuration)
        //bottomNavigationView.setupWithNavController(control)
        NavigationUI.setupWithNavController(bottomNavigationView,control)
    }

}

后经排查，发现问题出在了res/menu/navigation_menu和res/navigation/navigation_graph对应关系上面

想要有联动，这两个配置文件的id要一一对应：android:id="@+id/fragment_first"、android:id="@+id/fragment_second"、android:id="@+id/fragment_third"

res/menu/navigation_menu：

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:id="@+id/fragment_first"
        android:icon="@drawable/ic_home_black_24dp"
        android:title="fragment1cc" />
    <item
        android:id="@+id/fragment_second"
        android:icon="@drawable/ic_dashboard_black_24dp"
        android:title="fragment2bb" />
    <item
        android:id="@+id/fragment_third"
        android:icon="@drawable/ic_notifications_black_24dp"
        android:title="fragment3ss" />
</menu>

res/navigation/navigation_graph

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/navigation_graph"
    app:startDestination="@id/fragment_first">
    <fragment
        android:id="@+id/fragment_first"
        android:name="com.example.mynavigation.Fragment1"
        android:label="fragment1">

<!--        <action-->
<!--            android:id="@+id/action_fragment_first_to_fragment_second"-->
<!--            app:destination="@id/fragment_second" />-->
    </fragment>
    <fragment
        android:id="@+id/fragment_second"
        android:name="com.example.mynavigation.Fragment2"
        android:label="fragment2">

<!--        <action-->
<!--            android:id="@+id/action_fragment_second_to_fragment_third"-->
<!--            app:destination="@id/fragment_third"/>-->
    </fragment>
    <fragment
        android:id="@+id/fragment_third"
        android:name="com.example.mynavigation.Fragment3"
        android:label="fragment3" />


</navigation>