Android XML Scrollview

Question

I'm trying to put multiple TextViews below eachother in one ScrollView, but when I do this it makes my App crash. How can I put the same text twice underneath eachother?

  <ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="20dp"
    android:layout_marginBottom="20dp"
    android:layout_below="@id/linear">

    <TextView
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:text="@string/lorem_ipsum"/>

    <TextView
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:text="@string/lorem_ipsum"/>
  </ScrollView> 

Answer 1

As per android docmentaion :-

http://developer.android.com/reference/android/widget/ScrollView.html

A ScrollView is a FrameLayout, meaning you should place one child in it containing the entire contents to scroll; this child may itself be a layout manager with a complex hierarchy of objects. A child that is often used is a LinearLayout in a vertical orientation, presenting a vertical array of top-level items that the user can scroll through.

Scrollview always contains only one child layout. And Linear layout have orientation property to manage child layout either horizontal or vertical.

Your code must be look like as following:

<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" >
         <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/lorem_ipsum"/>

         <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/lorem_ipsum"/>
   </LinearLayout></ScrollView>

I think the above code helps you.

Answer 2

Your Scrollview can have only one child view, so put a layout and your textviews inside this layout:

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="20dp"
    android:layout_marginBottom="20dp"
    android:layout_below="@id/linear">

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

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/lorem_ipsum"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/lorem_ipsum"/>

    </LinearLayout> 

</ScrollView> 

Answer 3

The direct child of ScrollView should be another layout that supports multiple children, such as RelativeLayout or LinearLayout.

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginBottom="20dp"
    android:layout_marginTop="20dp" >

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

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/lorem_ipsum" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/lorem_ipsum" />
    </LinearLayout>

</ScrollView>

Answer 4

Scroll View Can Have Only One Child. So Use LinearLayout inside your ScrollView and then inside that do whatever you want to be. Like this

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_marginTop="20dp" >

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

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text="@string/app_name" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:text="@string/app_name" />
</LinearLayout>