

- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to add custom adapter for my listView on Android?
This example demonstrates how do I add custom adapter for my listView in android.
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <ListView android:id="@+id/listView" android:layout_width="match_parent" android:layout_height="wrap_content"/> </LinearLayout>
Step 3 − Add the following code to src/MainActivity.java
import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.widget.ListView; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { ListView listView; ArrayList<MyData> arrayList = new ArrayList<>(); MyAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); listView = findViewById(R.id.listView); arrayList.add(new MyData(1, " Mashu","987576443")); arrayList.add(new MyData(2, " Azhar","8787576768")); arrayList.add(new MyData(3, " Niyaz","65757657657")); adapter = new MyAdapter(this, arrayList); listView.setAdapter(adapter); } }
Step 4 − Create a java class(MyData.java) and add the following code
public class MyData { private int serialNum; private String name; private String mobileNumber; public MyData(int num, String name, String mobileNumber) { this.serialNum = num; this.name = name; this.mobileNumber = mobileNumber; } public int getNum() { return serialNum; } public void setNum(int num) { this.serialNum = num; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getMobileNumber() { return mobileNumber; } public void setMobileNumber(String mobileNumber) { this.mobileNumber = mobileNumber; } }
Step 5 − Create a java class(MyAdapter.java) and add the following code −
import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; import java.util.ArrayList; public class MyAdapter extends BaseAdapter { private Context context; private ArrayList<MyData> arrayList; private TextView serialNum, name, contactNum; public MyAdapter(Context context, ArrayList<MyData> arrayList) { this.context = context; this.arrayList = arrayList; } @Override public int getCount() { return arrayList.size(); } @Override public Object getItem(int position) { return position; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { convertView = LayoutInflater.from(context).inflate(R.layout.row, parent, false); serialNum = convertView.findViewById(R.id.serailNumber); name = convertView.findViewById(R.id.studentName); contactNum = convertView.findViewById(R.id.mobileNum); serialNum.setText(" " + arrayList.get(position).getNum()); name.setText(arrayList.get(position).getName()); contactNum.setText(arrayList.get(position).getMobileNumber()); return convertView; } }
Step 6 − Create a layout resource file(row.xml) and add the following code −
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="4dp"> <TextView android:id="@+id/serailNumber" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Number" android:textColor="@color/colorPrimary" android:textSize="16sp" /> <TextView android:id="@+id/studentName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Name" android:textColor="#000000" android:textSize="16sp" /> <TextView android:id="@+id/mobileNum" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Mobile Number" android:textColor="@color/colorAccent" android:textSize="16sp" /> </LinearLayout>
Step 7 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample"> <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>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
- Related Questions & Answers
- How to write a custom adapter for my list view on Android using Kotlin?
- How to add header item for Listview in Android?
- How to create a custom listview in android?
- How to add footer in Android ListView?
- How to add multiple copies in arrylist for Listview in Android?
- How to add footer view to android listview?
- How to add string and other data types for Listview in Android?
- How to dynamically update a ListView on Android
- How to give on click listener for footer view in android listview?
- How to add custom ExpectedConditions for Selenium?
- How to use rotate() for Listview in Android?
- How to use fill() for Listview in Android?
- How to add a footer in Android ListView using Kotlin?
- How to use search functionality in custom listview in Android using kotlin?
- How to create focusable editText inside ListView on Android?