How to disable copy/paste from/to EditText in Android App using Kotlin?

Kotlin Apps/ApplicationsMobile DevelopmentAndroid

This example demonstrates how to disable copy/paste from/to EditText in the Android App 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.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:padding="8dp"
   tools:context=".MainActivity">
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_centerHorizontal="true"
      android:layout_marginTop="40dp"
      android:text=" Cut/copy/paste is Disabled"
      android:textColor="@android:color/background_dark"
      android:textSize="22sp"
      android:textStyle="bold" />
   <EditText
   android:id="@+id/editText"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_centerInParent="true" />
</RelativeLayout>

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

import android.os.Bundle
import android.view.ActionMode
import android.view.Menu
import android.view.MenuItem
import android.widget.EditText
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
   lateinit var editText: EditText
   override fun onCreate(savedInstanceState: Bundle?) {
      super.onCreate(savedInstanceState)
      setContentView(R.layout.activity_main)
      title = "KotlinApp"
      editText = findViewById(R.id.editText)
      editText.customSelectionActionModeCallback = object : ActionMode.Callback {
         override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
            return false
         }
         override fun onDestroyActionMode(mode: ActionMode) {}
         override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
            return false
         }
         override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
            return false
         }
      }
   }
}

Step 4 − 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.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


raja
Published on 26-May-2020 10:48:18
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