AppBarLayout with tabs and ViewPager

I have a problem with TabLayoutand AppBarLayout, because I want my tabs to be at the bottom and right now they are at the top, they hide with the image as I scroll up. And there's the second problem - AppBarLayout with image doesn't hide as I scroll the text, it only hides/shows as I try to scroll image at the top

<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:id="@+id/main_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows = "true"
    tools:context=".MainActivity">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/main_appbar"
        android:layout_width="match_parent"
        android:layout_height="250dp"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        android:fitsSystemWindows="true">


        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/main_collapsing"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            android:fitsSystemWindows="true"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginStart="48dp"
            app:expandedTitleMarginEnd="64dp">


            <ImageView
                android:id="@+id/main_backdrop"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scaleType="centerCrop"
                android:fitsSystemWindows="true"
                android:src="@raw/test"
                app:layout_collapseMode="parallax"/>



            <android.support.v7.widget.Toolbar
                android:id="@+id/main_toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_scrollFlags="scroll|enterAlways"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                app:layout_collapseMode="pin"/>

            <android.support.design.widget.TabLayout
                android:id="@+id/sliding_tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                />

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



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

    <android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

    </android.support.v4.view.ViewPager>


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

Edit:

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/fragment_pager_scrollview">

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:lineSpacingMultiplier="1.2"
        android:text="@string/lorem_ip"/>

</ScrollView>

Upvotes: 2

Answers (3)

Venkata Narayana

Reputation: 1697

Scroll view doesn't support Appbar behaviors, change it to NestedScrollView and use the following layout:

 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="vertical"
 app:layout_behavior="@string/appbar_scrolling_view_behavior">

  <android.support.design.widget.TabLayout
  android:id="@+id/sliding_tabs"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/>

   <android.support.v4.view.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

 </LinearLayout

Upvotes: 2

jle

Reputation: 696

Try to add gravity to your TabLayout like this:

    <android.support.design.widget.TabLayout
                    android:id="@+id/sliding_tabs"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="bottom"
                    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
                    />

Edit: In order to have the TabLayout below CollapsingToolbarLayout, simply put it into your ViewPager, like this:

<android.support.v4.view.ViewPager
        android:id="@+id/viewpager"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

<android.support.design.widget.TabLayout
        android:id="@+id/sliding_tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"/> 

</android.support.v4.view.ViewPager>

Upvotes: 2

Prashanth Verma

Reputation: 588

Please change your code to this:

<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:paddingTop="@dimen/app_bar_padding"
    android:background="@drawable/dash_bar"
    android:layout_height="192dp">

    <android.support.design.widget.CollapsingToolbarLayout
        android:id="@+id/collapsing_toolbar"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:elevation="10dp"
        app:layout_scrollFlags="scroll|exitUntilCollapsed">

        <ImageView
            android:id="@+id/expandedImage"
            android:layout_width="match_parent"
            android:layout_height="200dp"
            android:scaleType="centerCrop"
            app:layout_collapseMode="parallax" />

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
            app:layout_collapseMode="parallax">

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


        <android.support.design.widget.TabLayout
            android:id="@+id/tab_layout"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:layout_gravity="bottom"
            app:tabMaxWidth="0dp"
            app:tabGravity="fill"
            app:tabIndicatorColor="#ffffff"
            app:tabTextColor="#b3ffffff"
            android:background="#00000000"
            app:tabSelectedTextColor="#ffffff"
            app:tabIndicatorHeight="5dp"
            app:tabMode="fixed" />
    </android.support.design.widget.CollapsingToolbarLayout>

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

<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

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

Now to hide the image while scrolling the text, add this line to the View thats scrolling (i am assuming you just used textView and scrollbars there):

app:layout_behavior="@string/appbar_scrolling_view_behavior"

Upvotes: 0

AppBarLayout with tabs and ViewPager

Answers (3)

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