滚动视图在OS 4.1.2上不起作用

Question

I have added scroll view in a layout, scroll view has attributes of match parent for height and width also fillViewPort is true for scroll view, its working in other devices but not working in android OS 4.1.2.

Layout :

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    android:layout_width="match_parent"
    android:background="@android:color/white"
    android:layout_height="match_parent">
<!--    <RelativeLayout
        android:layout_width="match_parent"

        android:layout_height="match_parent">
    &lt;!&ndash;    <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:alpha="0.5"
            android:scaleType="fitXY"
            android:src="@drawable/page"/>&ndash;&gt;
    </RelativeLayout>-->

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fillViewport="true">
<LinearLayout android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:weightSum="8">


    <TextView
        android:id="@+id/main_welcome"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="@dimen/dimen_20dp"
        android:text="@string/welcome"
        android:textColor="@color/colorPrimary"
        android:textStyle="bold" />

    <GridView
        android:id="@+id/gridviewMain"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="@dimen/dimen_40dp"
        android:layout_marginLeft="@dimen/dimen_40dp"
        android:layout_marginRight="@dimen/dimen_40dp"
        android:columnWidth="80dp"
        android:horizontalSpacing="@dimen/dimen_10dp"
        android:numColumns="2"
        android:stretchMode="columnWidth"
        android:verticalSpacing="10dp"></GridView>

</LinearLayout>


    </ScrollView>

    <TextView
        android:id="@+id/textView20"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_centerInParent="false"
        android:text="For Any Queries Related To Mobile App Click On Service Request"
        android:textAlignment="center" />

</RelativeLayout>

What can be the reason for this? All other scroll views are working in same device just not working on this screen.

Please help.Thank you..

Answer 1

Try Using nestedScrollView instead

<nestedScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fillViewport="true">
<LinearLayout android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:weightSum="8">


    <TextView
        android:id="@+id/main_welcome"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="@dimen/dimen_20dp"
        android:text="@string/welcome"
        android:textColor="@color/colorPrimary"
        android:textStyle="bold" />

    <GridView
        android:id="@+id/gridviewMain"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginBottom="@dimen/dimen_40dp"
        android:layout_marginLeft="@dimen/dimen_40dp"
        android:layout_marginRight="@dimen/dimen_40dp"
        android:columnWidth="80dp"
        android:horizontalSpacing="@dimen/dimen_10dp"
        android:numColumns="2"
        android:stretchMode="columnWidth"
        android:verticalSpacing="10dp"></GridView>

</LinearLayout>


    </nestedScrollView>