抽屉导航和底部导航在同一活动Kotlin

Question

我使用的是SDK 28和android X元素
我正在尝试模仿Instagram的UI
我已经尝试将Android Studio模板中的两个无效导航组合在一起了
而且它有一些coulples错误，我无法修复
我正在MainActivity.kt上对导航进行编码

举个例子：
1.底部导航启动的Fragment中缺少Humbuger图标
2.抽屉导航没有覆盖导航

代码

主要活动

package com.odstudio.ourdiet
import android.os.Bundle
import androidx.navigation.findNavController
import androidx.navigation.ui.AppBarConfiguration
import androidx.navigation.ui.navigateUp
import androidx.navigation.ui.setupActionBarWithNavController
import androidx.navigation.ui.setupWithNavController
import androidx.drawerlayout.widget.DrawerLayout
import com.google.android.material.navigation.NavigationView
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.Toolbar
import com.google.android.material.bottomnavigation.BottomNavigationView
class MainActivity : AppCompatActivity() {
private lateinit var appBarConfiguration: AppBarConfiguration
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val toolbar: Toolbar = findViewById(R.id.toolbar)
setSupportActionBar(toolbar)
val drawerLayout: DrawerLayout = findViewById(R.id.drawer_layout)
val navView: NavigationView = findViewById(R.id.nav_view)
val navController = findNavController(R.id.nav_host_fragment)
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
appBarConfiguration = AppBarConfiguration(
setOf(
R.id.nav_gallery, R.id.nav_slideshow, R.id.nav_tools, R.id.nav_share, R.id.nav_send
), drawerLayout
)
setupActionBarWithNavController(navController, appBarConfiguration)
navView.setupWithNavController(navController)
val bottomNavView: BottomNavigationView = findViewById(R.id.navigation)
bottomNavView.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener)
}
//  override fun onCreateOptionsMenu(menu: Menu): Boolean {
//    Inflate the menu; this adds items to the action bar if it is present.
//  menuInflater.inflate(R.menu.main, menu)
//return true
// }
override fun onSupportNavigateUp(): Boolean {
val navController = findNavController(R.id.nav_host_fragment)
return navController.navigateUp(appBarConfiguration) || super.onSupportNavigateUp()
}
private val mOnNavigationItemSelectedListener =
BottomNavigationView.OnNavigationItemSelectedListener { item ->
when (item.itemId) {
R.id.navigation_home -> {
findNavController(R.id.nav_host_fragment).navigate(R.id.nav_home)
}
R.id.navigation_groups -> {
findNavController(R.id.nav_host_fragment).navigate(R.id.nav_groups)
}
R.id.navigation_friends -> {
findNavController(R.id.nav_host_fragment).navigate(R.id.nav_friends)
}
}
false
}
}

布局

Activity_min.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:fitsSystemWindows="true">
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:elevation="4dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/activity_main_bottom" />
<androidx.drawerlayout.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="-200dp"
tools:openDrawer="start">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
</androidx.drawerlayout.widget.DrawerLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

app_bar_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout 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"
tools:context=".MainActivity">
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay"/>
</com.google.android.material.appbar.AppBarLayout>
<include layout="@layout/content_main" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/app_bar_main">
<fragment
android:id="@+id/nav_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:navGraph="@navigation/mobile_navigation" />
</androidx.constraintlayout.widget.ConstraintLayout>

图像

主页没有Humbuger图标
抽屉导航没有覆盖导航

Answer 1

好吧，这个非常直接。我采用了默认的导航抽屉项目，并添加了一些更改。

首先，将DrawerLayout和您添加的BottomNavigation包装在ConstraintLayout中。

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:fitsSystemWindows="true">
<androidx.drawerlayout.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:openDrawer="start">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
</androidx.drawerlayout.widget.DrawerLayout>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginEnd="0dp"
android:elevation="4dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/navigation" />
</androidx.constraintlayout.widget.ConstraintLayout>

然后在MainActivy中添加OnNavigationSelectedListener，并将其设置在onCreate()中

主要活动.kt

class MainActivity : AppCompatActivity() {
private lateinit var appBarConfiguration: AppBarConfiguration
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val toolbar: Toolbar = findViewById(R.id.toolbar)
setSupportActionBar(toolbar)
val drawerLayout: DrawerLayout = findViewById(R.id.drawer_layout)
val navView: NavigationView = findViewById(R.id.nav_view)
val navController = findNavController(R.id.nav_host_fragment)
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
appBarConfiguration = AppBarConfiguration(
setOf(
R.id.nav_home, R.id.nav_gallery, R.id.nav_slideshow,
R.id.nav_tools, R.id.nav_share, R.id.nav_send
), drawerLayout
)
setupActionBarWithNavController(navController, appBarConfiguration)
navView.setupWithNavController(navController)
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener)
}
override fun onCreateOptionsMenu(menu: Menu): Boolean {
// Inflate the menu; this adds items to the action bar if it is present.
menuInflater.inflate(R.menu.main, menu)
return true
}
override fun onSupportNavigateUp(): Boolean {
val navController = findNavController(R.id.nav_host_fragment)
return navController.navigateUp(appBarConfiguration) || super.onSupportNavigateUp()
}
private val mOnNavigationItemSelectedListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
when (item.itemId) {
// Set up navigation here
when (item.itemId) {
R.id.navigation_rivers -> findNavController(R.id.nav_host_fragment).navigate(R.id.nav_river)
}   R.id.navigation_favorites -> findNavController(R.id.nav_host_fragment).navigate(R.id.nav_favs)
R.id.navigation_map -> findNavController(R.id.nav_host_fragment).navigate(R.id.nav_map)
}
false
}

并确保你有你的底部导航菜单设置。

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/navigation_rivers"
android:icon="@drawable/ic_sea"
android:title="@string/title_rivers"/>
<item
android:id="@+id/navigation_favorites"
android:icon="@drawable/ic_heart"
android:title="@string/title_favorites"/>
<item
android:id="@+id/navigation_map"
android:icon="@drawable/ic_location"
android:title="@string/title_map"/>
</menu>

更新：我更新了上面的MainActivity.kt。

这是我的导航图mobile_navigation.xml

<?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"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/mobile_navigation"
app:startDestination="@+id/nav_home">
<!-- Other Drawer Fragments here, removed for brevity -->
<fragment
android:id="@+id/nav_share"
android:name="com.stackoverflowdualnav.ui.share.ShareFragment"
android:label="@string/menu_share"
tools:layout="@layout/fragment_share" />
<fragment
android:id="@+id/nav_send"
android:name="com.stackoverflowdualnav.ui.send.SendFragment"
android:label="@string/menu_send"
tools:layout="@layout/fragment_send" />
<!-- Bottom Nav Below -->
<fragment
android:id="@+id/nav_river"
android:name="com.stackoverflowdualnav.ui.send.RiverFragment"
android:label="@string/menu_river"
tools:layout="@layout/fragment_river" />
<fragment
android:id="@+id/nav_favs"
android:name="com.stackoverflowdualnav.ui.send.FavoritesFragment"
android:label="@string/menu_favorites"
tools:layout="@layout/fragment_map" />
<fragment
android:id="@+id/nav_map"
android:name="com.stackoverflowdualnav.ui.send.NavMapFragment"
android:label="@string/menu_map"
tools:layout="@layout/fragment_map" />

这是按原样工作的，只需根据您的用例进行调整即可。