ScrollView does not scroll in fragment

Question

I googled my problem and read similar questions in stackoverflow but I dont solve any way.

I have a layout with coordinatorLayout (main.xml) and a fragment with relativeLayout (fragment.xml)

main.xml

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:paddingRight="16dp"
        app:layout_scrollFlags="scroll|enterAlways"
        app:popupTheme="@style/AppTheme.PopupOverlay">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:layout_weight="1">
                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="40dp"
                    android:text="FRAGMENT TITLE"
                    android:textSize="20sp"
                    android:textColor="@color/colorWhite"
                    android:id="@+id/main_toolbar_title"
                    android:gravity="center_vertical" />
            </LinearLayout>
        </LinearLayout>
    </android.support.v7.widget.Toolbar>

    <android.support.design.widget.TabLayout
        android:id="@+id/tabs"
        android:background="@color/colorWhite"
        android:layout_width="match_parent"
        android:layout_height="60dp" />
</android.support.design.widget.AppBarLayout>

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

fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
android:background="#f3f3f3">

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <android.support.v7.widget.CardView
            android:id="@+id/card_view"
            android:layout_gravity="center"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            card_view:contentPadding="1dp"
            card_view:cardCornerRadius="2dp">

            <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical">

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>
                <Button
                    android:layout_width="match_parent"
                    android:layout_height="66dp"
                    android:textAllCaps="false"
                    android:text="Button Title"
                    android:textSize="18sp"
                    android:textColor="#404040"/>

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

As you have seen, I have more buttons in scrollView but not scrolling. The ui elements in view pager, I first thought it was because of view pager but I have test it test_fragment.xml, it works perfectly.

scrollView scrolls when I press and hold out of view pager (ex. My First Tab) and move finger up/down

test_fragment.xml

<android.support.design.widget.CoordinatorLayout
android:id="@+id/quickreturn_coordinator"
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.v7.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

What is the problem?

Thanks in advance.

V-rund Puro-hit · Accepted Answer · 2016-04-18 12:54:18Z

6

As your are working with AppBarLayout, it doesn't work with simple ScrollView. you should use NestedScrollview instead. and you have took your ScrollView inside RelativeLayout that's not necessary. try again with removing that RelativeLayout by using NestedScrollView.

I guess it will help.

edited Apr 18, 2016 at 12:54

answered Mar 8, 2016 at 8:12

V-rund Puro-hit

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3 Comments

V-rund Puro-hit Over a year ago

Glad to hear that.. :)

Amritesh Over a year ago

Helped me fixing the issue, It was difficult to find the issue(AppBarLayout with scrollview), how did you identify this issue :)?

V-rund Puro-hit Over a year ago

@Amritesh i am glad it helped.and about that issue, android Dev site has all Answers if we know know to find ;)

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