如何在底部導航頂部顯示工廠？這是我嘗試過的：
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="@ id/trendingPosts"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@ id/trendingPosts"
android:focusedByDefault="true"
android:focusable="true"/>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@ id/bottom_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="@ id/trendingPosts"
app:layout_constraintTop_toBottomOf="@ id/trendingPosts"
app:menu="@menu/main_menu"
android:focusable="false"
android:focusedByDefault="false"/>
但是，晶圓廠仍然低于它。看圖片：
uj5u.com熱心網友回復：
您需要使用協調器布局
<androidx.coordinatorlayout.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@ id/bottom_menu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="@ id/trendingPosts"
app:layout_constraintTop_toBottomOf="@ id/trendingPosts"
app:menu="@menu/main_menu"
android:focusable="false"
android:focusedByDefault="false"/>
</androidx.constraintlayout.widget.ConstraintLayout>
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="32dp"
android:layout_gravity="bottom|center"
android:focusedByDefault="true"
android:focusable="true"/>
</androidx.coordinatorlayout.widget.CoordinatorLayout>
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