Hello Readers! In this post, we are going to learn about how to use android scrollView widget in any android application. We will also go through different attributes of scrollView widget that can be used to customise it.

Output

Tutorialwing Android ScrollView Output

Getting Started

ScrollView widget can be defined as below –

ScrollView is widget that are used to vertically scroll the views placed within it (i.e. vertically scroll the child element). Note that ScrollView supports only vertical scrolling. It can have only one direct child . So, if you want to place multiple child within it, you need to place a viewGroup (i.e. LinearLayout , RelativeLayout etc.) inside ScrollView. Then, you can place multiple views as child of that viewGroup.

Attributes of Android ScrollView Widget

Some of the popular attributes of android scrollView widget are –

Some of the popular attributes of android ScrollView inherited from FrameLayout are –

Some of the popular attributes of ScrollView inherited from ViewGroup are –

Some of the popular attributes of android ScrollView inherited from View are –

Example of Android ScrollView Widget

At first, we will create android application. Then, we will use scrollView widget in this application.

1. Creating New Project

Follow steps below to create new project. Please ignore the steps if you have already created a new application.

Now, we will modify xml and java file to use scrollView widget in the application.

2. Modify Values folder

Open res/values/strings.xml file. Then, add below code into it.

<resources>
	<string name="app_name">ScrollView</string>
	<string name="no_image">No Image</string>
</resources>

3. Download Drawable resources Needed

You will need some images, stored in res/drawable folder, to be used in the application. These drawable images are being used by imageViews inside scrollView widget to create view.

4. Use ScrollView Widget in xml file

Open res/layout/activity_main.xml file. Then, add below code into it.

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

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

		<ImageView
			android:id="@+id/image1"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_marginBottom="20dp"
			android:layout_marginTop="20dp"
			android:contentDescription="@string/no_image"
			android:src="@drawable/guava"/>

		<ImageView
			android:id="@+id/image2"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_marginBottom="20dp"
			android:contentDescription="@string/no_image"
			android:src="@drawable/jackfruit"/>

		<ImageView
			android:id="@+id/image3"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_marginBottom="20dp"
			android:contentDescription="@string/no_image"
			android:src="@drawable/mix_fruit"/>

		<ImageView
			android:id="@+id/image4"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_marginBottom="20dp"
			android:contentDescription="@string/no_image"
			android:src="@drawable/pomegranate"/>

		<ImageView
			android:id="@+id/image5"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_marginBottom="20dp"
			android:contentDescription="@string/no_image"
			android:src="@drawable/strawberry"/>

		<ImageView
			android:id="@+id/image6"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_marginBottom="20dp"
			android:contentDescription="@string/no_image"
			android:src="@drawable/zespri_kiwi"/>

	</LinearLayout>
</ScrollView>

In activity_main.xml file, we have defined ScrollView widget. Note that there are only one direct child of scrollView i.e. LinearLayout. Inside linearLayout, we have defines some imageViews and added drawable images in it.

5. Access ScrollView Widget in java file

Open src/main/java/com.tutorialwing.scrollview/MainActivity.java file. Then, add below code into it.

package com.tutorialwing.scrollview;

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);
	}
}

We have not modified anything in MainActivity.ja file. So, it is as it was after creating application.

Since AndroidManifest.xml file is very important in any android application, we are also going to see the content inside this file.

AndroidManifest.xml

Code inside src/main/AndroidManifest.xml file is as below –

<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.tutorialwing.scrollview"
		  xmlns:android="http://schemas.android.com/apk/res/android">

	<application
		android:allowBackup="true"
		android:icon="@mipmap/ic_launcher"
		android:label="@string/app_name"
		android:roundIcon="@mipmap/ic_launcher_round"
		android:supportsRtl="true"
		android:theme="@style/AppTheme">
		<activity android:name=".MainActivity">
			<intent-filter>
				<action android:name="android.intent.action.MAIN"/>

				<category android:name="android.intent.category.LAUNCHER"/>
			</intent-filter>
		</activity>
	</application>

</manifest>

When we run the program, we will get output as shown above.

That’s end of tutorial on Android ScrollView widget.