Want to Create like this 是因为我使用了底部导航视图和导航抽屉。
我正在借助https://github.com/android/architecture-components-samples中的示例 NavigationAdvanceSample 处理带有导航图的底部导航视图。
现在我可以创建此视图，但是问题是，当单击导航抽屉项目时，我必须替换底部导航第5个项目片段中的新片段。
现在，当每个标签使用不同的导航图时，请帮助我。
setOnNavigationItemSelectedListener { item ->
mainContainer.visibility = View.VISIBLE
itemContainer.visibility = View.GONE
// Don't do anything if the state is state has already been saved.
if (fragmentManager.isStateSaved) {
false
} else {
if(drawer.isDrawerOpen(GravityCompat.END)) {
//drawer is close
drawer.visibility = View.GONE
drawer.closeDrawers()
}
val newlySelectedItemTag = graphIdToTagMap[item.itemId]
if(newlySelectedItemTag != null){
if (selectedItemTag != newlySelectedItemTag) {
// Pop everything above the first fragment (the "fixed start destination")
fragmentManager.popBackStack(firstFragmentTag,
FragmentManager.POP_BACK_STACK_INCLUSIVE)
val selectedFragment = fragmentManager.findFragmentByTag(newlySelectedItemTag)
as NavHostFragment
// Exclude the first fragment tag because it's always in the back stack.
if (firstFragmentTag != newlySelectedItemTag) {
// Commit a transaction that cleans the back stack and adds the first fragment
// to it, creating the fixed started destination.
fragmentManager.beginTransaction()
.setCustomAnimations(
R.anim.nav_default_enter_anim,
R.anim.nav_default_exit_anim,
R.anim.nav_default_pop_enter_anim,
R.anim.nav_default_pop_exit_anim)
.attach(selectedFragment)
.setPrimaryNavigationFragment(selectedFragment)
.apply {
// Detach all other Fragments
graphIdToTagMap.forEach { _, fragmentTagItem ->
if (fragmentTagItem != newlySelectedItemTag) {
detach(fragmentManager.findFragmentByTag(firstFragmentTag)!!)
}
}
}
.addToBackStack(firstFragmentTag)
.setReorderingAllowed(true)
.commit()
}
selectedItemTag = newlySelectedItemTag
isOnFirstFragment = selectedItemTag == firstFragmentTag
selectedNavController.value = selectedFragment.navController
true
} else {
false
}
}else{
Log.d("Tag", "Flag value before drawer$flag")
drawer.visibility = View.VISIBLE
drawer.openDrawer(GravityCompat.END)
true
}
}
}
MainActivity.xml
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ripple="http://schemas.android.com/apk/res-auto"
android:fitsSystemWindows="true"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".view.activity.TabActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:background="@color/Medium"
android:gravity="center"
android:id="@+id/toolbar"
android:orientation="horizontal"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
>
<LinearLayout
android:id="@+id/goBackButton"
android:layout_width="wrap_content"
android:background="?selectableItemBackground"
android:layout_height="match_parent"
android:layout_weight=".15"
android:visibility="invisible"
android:gravity="center_horizontal|center_vertical"
android:orientation="horizontal">
<ImageView
android:id="@+id/inzeView10"
android:layout_width="20dp"
android:layout_height="20dp"
android:src="@mipmap/back"
android:visibility="visible" />
</LinearLayout>
<LinearLayout
android:id="@+id/switch_child"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight=".7"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal">
<com.facebook.drawee.view.SimpleDraweeView
android:id="@+id/user_imageview"
android:layout_width="32dp"
android:layout_height="32dp"
android:visibility="gone"
ripple:failureImage="@mipmap/child_pic"
ripple:placeholderImage="@mipmap/child_pic"
ripple:roundAsCircle="true" />
<TextView
android:id="@+id/fragmentName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:maxLength="20"
android:padding="3dp"
android:textColor="@color/white"
android:textSize="14dp" />
<ImageView
android:id="@+id/switchChildDropdown"
android:layout_width="14dp"
android:layout_height="15dp"
android:layout_marginTop="2dp"
android:src="@mipmap/white_drop_down"
android:visibility="gone" />
</LinearLayout>
<RelativeLayout
android:orientation="horizontal"
style="@style/SelectableItemBackground"
android:layout_width="0dp"
android:layout_weight=".1"
android:gravity="center"
android:visibility="gone"
android:id="@+id/toolbarRightLayoutFirst"
android:layout_height="match_parent">
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:visibility="visible"
android:src="@mipmap/setting_white"
android:id="@+id/toolbarRightImage1"
/>
</RelativeLayout>
<RelativeLayout
android:id="@+id/toolbarRightLayout"
style="@style/SelectableItemBackground"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight=".1"
android:visibility="visible"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:id="@+id/toolbarRightImage"
android:layout_width="20dp"
android:layout_height="20dp"
android:src="@mipmap/group_icon"
android:visibility="gone" />
<TextView
android:id="@+id/toolbarRightText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="2dp"
android:gravity="center"
android:maxLength="20"
android:visibility="gone"
android:textColor="@color/white"
android:textSize="14dp" />
</RelativeLayout>
</LinearLayout>
<androidx.drawerlayout.widget.DrawerLayout
android:id="@+id/drawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?attr/actionBarSize"
android:layout_marginBottom="76dp"
app:layout_constraintBottom_toTopOf="@+id/bottom_navigation"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/toolbar"
app:layout_constraintEnd_toEndOf="parent"
>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@mipmap/add_child_back"
>
<androidx.fragment.app.FragmentContainerView
android:id="@+id/nav_host_container"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.fragment.app.FragmentContainerView
android:id="@+id/nav_host_container_item"
android:layout_width="match_parent"
android:layout_height="0dp"
android:visibility="gone"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
<com.google.android.material.navigation.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="end"
android:background="@drawable/drawer_item_bg"
android:fitsSystemWindows="true"
app:menu="@menu/side_drawer">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@+id/lst_menu_items"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:divider="@color/dim_back"
android:dividerHeight="1dp"
/>
</LinearLayout>
</com.google.android.material.navigation.NavigationView>
</androidx.drawerlayout.widget.DrawerLayout>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:layout_width="76dp"
android:layout_height="80dp"
android:layout_marginBottom="4dp"
android:visibility="gone"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="@+id/bottom_navigation"
app:layout_constraintStart_toStartOf="@+id/bottom_navigation" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/bottom_navigation"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:foreground="?attr/selectableItemBackground"
app:itemBackground="@drawable/tab_color"
app:itemIconTint="@color/white"
app:itemTextColor="@color/white"
app:labelVisibilityMode="labeled"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="@menu/bottom_navigation_menu" />
</androidx.constraintlayout.widget.ConstraintLayout>
如果有人知道该怎么做，请帮忙。
预先感谢