Greetings!
We have recently published 100+ articles on android tutorials with kotlin and java. If you need, you may visit Android Tutorial for beginners page. You can also check Kotlin Tutorial for beginners. Also, if you are interested in content writing, you can mail us at tutorialwing@gmail.com.Hello Readers! In this post, we are going to learn about android nestedScrollView using kotlin in any android application. We will also learn about different attributes of android nestedScrollView that can be used to customise this widget.
Output

Tutorialwing Kotlin NestedScrollView Output
Getting Started
Android NestedScrollView can be defined as below –
NestedScrollView is a widget that are used when we need to implement scrollable view inside another scrollable view.
Generally it is difficult to implement scrollable view inside another scrollable view because it would be difficult to decide, by system, which view to scroll. That’s where nestedScrollView comes in.
Different Attributes of Android NestedScrollView Widget
Attributes of NestedScrollView as same as scrollView.
Example of Android NestedScrollView Using Kotlin
At first, we will create android application. Then, we will use nestedScrollView using kotlin in the application.
1. Creating New Project in Kotlin
Follow steps below to create new project. Please ignore the steps if you have already created the project.
Step | Description |
---|---|
1. | Open Android Studio. |
2. | Go to File => New => New Project. Write application name as NestedScrollView. Then, check Include Kotlin Support and click next button. |
3. | Select minimum SDK you need. However, we have selected 17 as minimum SDK. Then, click next button |
4. | Then, select Empty Activity => click next => click finish. |
5. | You will get a newly created project successfully if you have followed steps properly. |
Since we have a project now, we will modify xml and other files to use nestedScrollView using kotlin in the application.
2. Modify values folder
Open res/values/strings.xml file. Then, add below code into it.
<resources> <string name="app_name">NestedScrollView</string> <string name="no_image">No Image</string> <string name="nested_scroll_text">Tutorialwing.com presents tutorial on NestedScrollView! NestedScrollView is just like ScrollView, but it supports acting as both a nested scrolling parent and child on both new and old versions of Android. Nested scrolling is enabled by default. NestedScrollView is used when there is need for scrolling inside another scrolling view. Normally this would be difficult task because system would be unable to decide which view to scroll. This is where NestedScrollView comes into role. </string> </resources>
3. Download Drawable Resources Needed
You will some images, stored in res/drawable folder, to be used in the application. These drawable images will be used to create views inside scrollView in the application.
4. Use NestedScrollView Widget in xml file
Open src/main/res/layout/activity_main.xml file and 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:layout_marginBottom="20dp" android:gravity="center" android:orientation="vertical"> <android.support.v4.widget.NestedScrollView android:layout_width="match_parent" android:layout_height="100dp" android:layout_margin="20dp" android:background="@android:color/white" android:padding="10dp"> <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/nested_scroll_text"/> </LinearLayout> </android.support.v4.widget.NestedScrollView> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="20dp" android:contentDescription="@string/no_image" android:src="@drawable/guava"/> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="20dp" android:contentDescription="@string/no_image" android:src="@drawable/jackfruit"/> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="20dp" android:contentDescription="@string/no_image" android:src="@drawable/mix_fruit"/> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="20dp" android:contentDescription="@string/no_image" android:src="@drawable/pomegranate"/> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="20dp" android:contentDescription="@string/no_image" android:src="@drawable/strawberry"/> <ImageView android:layout_width="wrap_content" 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 two scrollable views. They are –
a. Scrollable view inside scrollView. They include imageViews and nestedScrollView.
b. Scrollable view inside nestedScrollView. They include textView inside linearLayout. Note that we have defined only
one direct child of nestedScrollView because it can contain only one direct child.
5. Access NestedScrollView Widget in Kotlin file
Open src/main/java/com.tutorialwing.nestedscrollview/MainActivity.kt file and add below code into it.
package com.tutorialwing.nestedscrollview import android.os.Bundle import android.support.v7.app.AppCompatActivity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) } }
We have modified nothing in MainActivity.kt file. So, it is as it was after creating project.
Since AndroidManifest.xml file is very important in any android application, we are also going to see the content inside this file.
AndroidManifest.xml file
Code inside main/AndroidManifest.xml file is as below.
<?xml version="1.0" encoding="utf-8"?> <manifest package="com.tutorialwing.nestedscrollview" 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 our tutorial on Android NestedScrollView using Kotlin.