如何在xml布局中添加两个Scroll视图，以使每个scrollview占据布局高度的一半？

Question

How do I add two ScrollViews in an android XML-layout such that each scroll view takes half of the height of the layout?

Answer 1

You can use LinearLayout as rootview then add two ScrollView as child and assign android:layout_weight="1" to both ScrollView

Note : if you want your view scroll horizontally then use HorizontalScrollView

SAMPLE CODE

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="@android:color/black"
        android:layout_weight="1">

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

            <!--add viw here-->
        </LinearLayout>

    </ScrollView>

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:background="@android:color/holo_red_dark"
        android:layout_weight="1">

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

            <!--add viw here-->
        </LinearLayout>

    </ScrollView>


</LinearLayout>

OUTPUT

Answer 2

There is a multiple way to do this. I am suggesting you one simple way. try to add weightsum =2 inside parent layout. And devide layout with 1 like this

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/main_rel"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    android:weightSum="2.0" >

    <RelativeLayout
        android:id="@+id/child_one"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1.0"
        android:background="#0000FF" >
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/child_two"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1.0"
        android:background="#00FF00" >
    </RelativeLayout>

</LinearLayout>