How to create Focusable EditText inside ListView on Android using Kotlin?

This example demonstrates how to create Focusable EditText inside ListView on Android using Kotlin.

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.

Example

<?xml version="1.0" encoding="utf-8"?> <LinearLayout 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:orientation="vertical"    android:padding="4dp"    tools:context=".MainActivity"> <ListView    android:id="@+id/listView"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:descendantFocusability="beforeDescendants" /> </LinearLayout>

Step 3 − Add the following code to src/MainActivity.kt

import androidx.appcompat.app.AppCompatActivity import android.annotation.SuppressLint import android.app.LauncherActivity import android.content.Context import android.os.Bundle import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import android.widget.BaseAdapter import android.widget.EditText import android.widget.ListView import java.util.ArrayList class MainActivity : AppCompatActivity() {    private lateinit var listView: ListView    private lateinit var myAdapter: MyAdapter    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       listView = findViewById(R.id.listView)       listView.itemsCanFocus = true       myAdapter = MyAdapter()       listView.adapter = myAdapter    }    private inner class MyAdapter internal constructor() : BaseAdapter() {       private var layoutInflater: LayoutInflater = getSystemService(Context.LAYOUT_INFLATER_SERVICE) as       LayoutInflater       internal var myItems = ArrayList<LauncherActivity.ListItem>()       lateinit var context: Context       init {          for (i in 0..6) {             val listItem = LauncherActivity.ListItem()             listItem.className = "Caption$i"             myItems.add(listItem)          }          notifyDataSetChanged()       }       override fun getItem(position: Int): Any {          return position       }       override fun getItemId(position: Int): Long {          return position.toLong()       }       override fun getCount(): Int {          return myItems.size       }       @SuppressLint("InflateParams")       override fun getView(position: Int, convertView: View?, parent: ViewGroup): View? {          var convertView: View? = convertView          val holder: ViewHolder          if (convertView == null) {             holder = ViewHolder()             convertView = layoutInflater.inflate(R.layout.list, null)             holder.caption = convertView.findViewById(R.id.ItemCaption)             convertView.setTag(holder)          } else {             holder = convertView.tag as ViewHolder          }          holder.caption.setText(myItems.get(position).className)          holder.caption.id = position          holder.caption.onFocusChangeListener = View.OnFocusChangeListener { v, hasFocus ->             if (!hasFocus) {                val position = v.id                val caption = v as EditText                myItems[position].className = caption.text.toString()             }          }          return convertView       }    }    internal inner class ViewHolder {       lateinit var caption: EditText    } }

Step 4 − Create a layout resource file (list.xml) and add the following 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"    android:paddingStart="4dp"> <EditText    android:id="@+id/ItemCaption"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:layout_marginStart="2dip"    android:singleLine="true" /> </LinearLayout>

Step 5 − 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="com.example.q11">    <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 the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen

Click here to download the project code.