How to create focusable editText inside ListView on Android?

AndroidApps/ApplicationsMobile Development

This example demonstrates how do I create a focusable editText inside 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"
   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">
   </ListView>
</LinearLayout>

Step 3 − Create a new layout resource file 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">
   <EditText
      android:id="@+id/ItemCaption"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:layout_marginStart="2dip"
      android:singleLine="true">
   </EditText>
</LinearLayout>

Step 4 − Add the following code to src/MainActivity.java

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;
public class MainActivity extends AppCompatActivity {
   ListView listView;
   MyAdapter myAdapter;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      listView = findViewById(R.id.listView);
      listView.setItemsCanFocus(true);
      myAdapter = new MyAdapter();
      listView.setAdapter(myAdapter);
   }
   private class MyAdapter extends BaseAdapter {
      private LayoutInflater layoutInflater;
      ArrayList<LauncherActivity.ListItem> myItems = new ArrayList<>();
      MyAdapter() {
         layoutInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
         for (int i = 0; i < 7; i++) {
               LauncherActivity.ListItem listItem = new LauncherActivity.ListItem();
               listItem.className = "Caption" + i;
               myItems.add(listItem);
         }
         notifyDataSetChanged();
      }
      @Override
      public int getCount() {
         return myItems.size();
      }
      @Override
      public Object getItem(int position) {
         return position;
      }
      @Override
      public long getItemId(int position) {
         return position;
      }
      @SuppressLint("InflateParams")
      @Override
      public View getView(int position, View convertView, ViewGroup parent) {
         ViewHolder holder;
         if (convertView == null) {
            holder = new ViewHolder();
            convertView = layoutInflater.inflate(R.layout.listitem, null);
            holder.caption = convertView.findViewById(R.id.ItemCaption);
            convertView.setTag(holder);
         } else {
            holder = (ViewHolder) convertView.getTag();
         }
         holder.caption.setText(myItems.get(position).className);
         holder.caption.setId(position);
         holder.caption.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            public void onFocusChange(View v, boolean hasFocus) {
               if (!hasFocus) {
                  final int position = v.getId();
                  final EditText Caption = (EditText) v;
                  myItems.get(position).className = Caption.getText().toString();
               }
            }
         });
         return convertView;
      }
   }
class ViewHolder {
   EditText caption;
   }
}

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="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" android:windowSoftInputMode="adjustPan">
            <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 the android studio, open one of your project's activity files and click the RunPlay Icon icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen

raja
Published on 29-Oct-2019 10:27:51
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