Fix bottom bar in CoordinatorLayout

I have a CoordinatorLayout which contains AppBarLayout and a FrameLayout which contains fragments.

One of this fragment contains a TabLayout at Top, one List trough RecyclerView and at the Bottom one "homemade" toolbar.

The AppBarLayout is configured with app:layout_scrollFlags="scroll|enterAlways"

My problem is that both "toolbars" are hiding when scroll, the AppBarLayout and my "homemade" toolbar at the bottom. This is the current behaviour

I would like to fix the bottom "homemade" toolbar to keep visible but I can't achieve it.

This is the XML of the fragment Layout

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    >
    <android.support.design.widget.TabLayout
        android:id="@+id/toolbarfilter"
        android:layout_width="match_parent"
        android:background="@color/azul_asde"
        app:tabMode="fixed"
        app:tabMaxWidth="0dp"
        android:elevation="4dp"
        app:tabIndicatorColor="@color/verde_pastel"
        android:layout_height="wrap_content"
        />

    <android.support.v4.widget.SwipeRefreshLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/swipeContainer"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

    <android.support.v7.widget.RecyclerView
    android:id="@+id/list"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>
    </android.support.v4.widget.SwipeRefreshLayout>

        <LinearLayout
        android:id="@+id/toolbarselection"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:paddingTop="10dp"
        android:paddingBottom="10dp"
        android:background="@color/azul_asde"
        android:elevation="4dp"
        android:visibility="visible"
        >
        <ImageView
            android:id="@+id/delete"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/ic_delete_white_24dp"
            android:tint="@color/gris_desactivado" />
        <ImageView
            android:id="@+id/select"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/ic_bookmark_border_white_24dp"/>

        <ImageView
            android:id="@+id/send"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:src="@drawable/ic_send_white_24dp"
            android:tint="@color/gris_desactivado" />

    </LinearLayout>

</LinearLayout>

EDIT1: THIS questions seems to be the same problem.

Solution 1:

Try this layout :

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.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"
    android:id="@+id/container">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/bottom_navigation"
        android:layout_alignParentTop="true">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">
        <android.support.v7.widget.CardView
            xmlns:card_view="http://schemas.android.com/apk/res-auto"
            android:id="@+id/card_view"
            android:layout_width="match_parent"
            android:layout_margin="10dp"
            android:layout_height="110dp"
            android:padding="15dp"
            card_view:cardElevation="2dp"
            card_view:cardCornerRadius="4dp">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="Test" />

        </android.support.v7.widget.CardView>


        <android.support.v7.widget.CardView
            xmlns:card_view="http://schemas.android.com/apk/res-auto"
            android:id="@+id/card_view1"
            android:layout_width="match_parent"
            android:layout_margin="10dp"
            android:layout_height="110dp"
            android:padding="15dp"
            card_view:cardElevation="2dp"
            card_view:cardCornerRadius="4dp">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:text="Test" />

        </android.support.v7.widget.CardView>

            <android.support.v7.widget.CardView
                xmlns:card_view="http://schemas.android.com/apk/res-auto"
                android:id="@+id/card_view3"
                android:layout_width="match_parent"
                android:layout_margin="10dp"
                android:layout_height="110dp"
                android:padding="15dp"
                card_view:cardElevation="2dp"
                card_view:cardCornerRadius="4dp">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:text="Test" />

            </android.support.v7.widget.CardView>

            <android.support.v7.widget.CardView
                xmlns:card_view="http://schemas.android.com/apk/res-auto"
                android:id="@+id/card_view4"
                android:layout_width="match_parent"
                android:layout_margin="10dp"
                android:layout_height="110dp"
                android:padding="15dp"
                card_view:cardElevation="2dp"
                card_view:cardCornerRadius="4dp">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:text="Test" />

            </android.support.v7.widget.CardView>

            <android.support.v7.widget.CardView
                xmlns:card_view="http://schemas.android.com/apk/res-auto"
                android:id="@+id/card_view5"
                android:layout_width="match_parent"
                android:layout_margin="10dp"
                android:layout_height="110dp"
                android:padding="15dp"
                card_view:cardElevation="2dp"
                card_view:cardCornerRadius="4dp">

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:text="Test" />

            </android.support.v7.widget.CardView>
        </LinearLayout>
    </ScrollView>


    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="bottom"
        android:gravity="bottom">

        <android.support.design.widget.BottomNavigationView
            android:layout_width="match_parent"
            android:layout_height="56dp"
            android:layout_weight="1"
            android:foregroundGravity="bottom"
            android:background="@color/green"
            app:itemIconTint="@color/white"
            app:itemTextColor="@color/white"
            android:id="@+id/bottomnav"
            app:menu="@menu/main">


        </android.support.design.widget.BottomNavigationView>

    </RelativeLayout>



</android.support.design.widget.CoordinatorLayout>

Solution 2:

The best possible solution will be making this kind of hierarchy

<ConstraintLayout>
    <CoordinatorLayout>
        <AppBarLayout>
           <ToolBar>
           <TabLayout>
        </AppBarLayout>
        <Inlude>
           Put the Main Content here.
        </Include>
    </CoordinatorLayout>

 
   Other Widgets that you want to be placed at a fixed position.

</ConstraintLayout>

Don't forget to add

app:layout_behavior="@string/appbar_scrolling_view_behavior"

the above line into your included layout parent ViewGroup

Let's have an example of the approach that I am talking about

<?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">

    <androidx.coordinatorlayout.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/container"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:context=".activity.Dashboard">

        <com.google.android.material.appbar.AppBarLayout
            android:id="@+id/appBarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/AppTheme.AppBarOverlay"
            app:elevation="0dp"
            app:layout_constraintBottom_toTopOf="@+id/container"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent">

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="@color/background"
                android:elevation="0dp"
                app:layout_scrollFlags="scroll|enterAlways|snap"
                app:popupTheme="@style/AppTheme.PopupOverlay"
                app:titleTextColor="#000000" />

            <com.google.android.material.tabs.TabLayout
                android:id="@+id/tabLayout"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                app:tabBackground="@color/background"
                app:tabIndicatorColor="@color/colorAccent"
                app:tabMode="scrollable"
                app:tabSelectedTextColor="@color/black"
                app:tabTextColor="@color/black" />

        </com.google.android.material.appbar.AppBarLayout>

        <include
            android:id="@+id/include"
            layout="@layout/content_main" />

    </androidx.coordinatorlayout.widget.CoordinatorLayout>

    <RelativeLayout
        android:id="@+id/btSend"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginRight="@dimen/_50sdp"
        android:visibility="gone"
        app:layout_constraintBottom_toTopOf="@id/container"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toEndOf="@+id/btReceive">

        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/fbSend"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="@dimen/_30sdp"
            android:background="@color/colorAccent"
            android:src="@drawable/ic_upload"
            app:rippleColor="@color/colorAccent" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@id/fbSend"
            android:layout_alignRight="@id/fbSend"
            android:layout_alignBottom="@id/fbSend"
            android:layout_marginBottom="@dimen/_3sdp"
            android:elevation="@dimen/_10sdp"
            android:gravity="center"
            android:text="SEND"
            android:textColor="@color/white"
            android:textSize="@dimen/_8sdp" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/btReceive"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="@dimen/_50sdp"
        android:visibility="gone"
        app:layout_constraintBottom_toTopOf="@id/container"
        app:layout_constraintEnd_toStartOf="@+id/btSend"
        app:layout_constraintHorizontal_bias="0.5"
        app:layout_constraintStart_toStartOf="parent">

        <com.google.android.material.floatingactionbutton.FloatingActionButton
            android:id="@+id/fbReceive"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="@dimen/_30sdp"
            android:background="@color/colorAccent"
            android:src="@drawable/ic_download"
            app:rippleColor="@color/colorAccent" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@id/fbReceive"
            android:layout_alignRight="@id/fbReceive"
            android:layout_alignBottom="@id/fbReceive"
            android:layout_marginBottom="@dimen/_3sdp"
            android:elevation="@dimen/_10sdp"
            android:gravity="center"
            android:text="RECEIVE"
            android:textColor="@color/white"
            android:textSize="@dimen/_8sdp" />
    </RelativeLayout>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/_7sdp"
        android:background="@drawable/bottom_bar_corner"
        android:padding="@dimen/_5sdp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">

        <Button
            android:layout_width="@dimen/_24sdp"
            android:layout_height="@dimen/_24sdp"
            android:background="@drawable/ic_upload_download"
            android:minHeight="0dp"
            android:paddingTop="@dimen/_6sdp"
            android:paddingBottom="@dimen/_6sdp"
            android:textSize="@dimen/_13sdp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

So far so good. Let's have a look at the result