我正在使用BottomAppbar(在活动中)和Appbarlayout(在片段中)我想在滚动回收器视图时隐藏两者。现在只在 AppbarLayout 工具栏上方隐藏。
activity_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=".ui.mainscreen.MainActivity">
<androidx.fragment.app.FragmentContainerView
android:id="@+id/nav_host_fragment"
android:name="com.skapps.android.liboapp.ui.mainscreen.HomeFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:defaultNavHost="true"
app:navGraph="@navigation/navigation_graph"/>
<com.google.android.material.bottomappbar.BottomAppBar
android:id="@+id/bottom_app_bar"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:layout_gravity="bottom"
app:fabCradleMargin="8dp"
app:fabCradleRoundedCornerRadius="32dp"
android:backgroundTint="@color/colorPrimary"
app:menu="@menu/bottom_app_bar_menu"
app:fabAlignmentMode="end"
app:hideOnScroll="true"
app:navigationIcon="@drawable/ic_baseline_menu"/>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_add_black_24dp"
android:backgroundTint="@color/colorAccent"
app:layout_anchor="@id/bottom_app_bar"
app:maxImageSize="35dp"
android:tint="@android:color/white"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
片段主页.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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.appbar.AppBarLayout
android:id="@+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/app_bar_shape"
android:elevation="8dp"
android:stateListAnimator="@null">
<androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:layout_scrollFlags="scroll|enterAlways">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/pinBar"
android:layout_width="match_parent"
android:layout_height="match_parent">
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:scrollbars="none"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<com.google.android.material.chip.ChipGroup
android:id="@+id/chip_group_main"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="2dp"
app:chipSpacingHorizontal="8dp" />
</HorizontalScrollView>
<ImageButton
android:id="@+id/chips_select"
android:layout_width="48dp"
android:layout_height="48dp"
android:background="@drawable/circle"
android:elevation="4dp"
android:contentDescription="@string/add_pin"
android:src="@drawable/ic_add_black_24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.AppBarLayout>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recycler_view_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
目前,只有上面的工具栏隐藏在滚动上,但如果我app:layout_scrollFlags="scroll|enterAlways"
从工具栏中删除(在片段中),那么只有 bottomAppbar 隐藏在滚动上......我不知道。我试过很多,请帮忙。