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Android ScrollView (Vertical)The android.widget.ScrollView class provides the functionality of scroll view. ScrollView is used to scroll the child elements of palette inside ScrollView. Android supports vertical scroll view as default scroll view. Vertical ScrollView scrolls elements vertically. Android uses HorizontalScrollView for horizontal ScrollView. Let's implement simple example of vertical ScrollView. activity_main.xmlNow, drag ScrollView from palette to activity_main.xml file and place some palette element inside it. File: activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.test.scrollviews.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Vertical ScrollView example"
android:id="@+id/textView"
android:layout_gravity="center_horizontal"
android:layout_centerHorizontal="true"
android:layout_alignParentTop="true" />
<ScrollView android:layout_marginTop="30dp"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/scrollView">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 1" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 2" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 3" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 4" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 5" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 6" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 7" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 8" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 9" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 10" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 11" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 12" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 13" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 14" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 15" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 16" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 17" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 18" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 19" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button 20" />
</LinearLayout>
</ScrollView>
</RelativeLayout>
Activity classIn activity class, we have not changed any code. File: MainActivity.java
package com.example.test.scrollviews;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Output ![]()
Next TopicAndroid Horizontal ScrollView
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