Flutter: disable screenshot capture for app

Question

I am making a Flutter app and I need to make sure the user is not able to capture screenshot of the app (any screen). Is there any way to achieve this in Flutter or do I need to write native code for both Android and IOS?

Answer 1

1. Locate your MainActivity class inside the embedded android project dir in your Flutter Project
2. Add the following import to your main activity class: import android.view.WindowManager.LayoutParams;
3. Add the following line to your MainActivity's onCreate method: getWindow().addFlags(LayoutParams.FLAG_SECURE);

Answer 2

For Flutter2 project

Method 1 : using package flutter_windowmanager

Method 2 :

in Android with kotlin

Step 1 Open the file "mainActivity.kt" using the path

android\app\src\main\kotlin\com\example\auth_email\MainActivity.kt

Step 2 Import Library

import android.view.WindowManager.LayoutParams import io.flutter.embedding.android.FlutterActivity import io.flutter.embedding.engine.FlutterEngine 

Step 3 In main activity class

class MainActivity: FlutterActivity() {   override fun configureFlutterEngine(flutterEngine: FlutterEngine) {     window.addFlags(LayoutParams.FLAG_SECURE)     super.configureFlutterEngine(flutterEngine)   } } 

In iOS Swift : AppDelegate.swift file

import UIKit import Flutter  @UIApplicationMain @objc class AppDelegate: FlutterAppDelegate {    override func application(     _ application: UIApplication,     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?   ) -> Bool {     GeneratedPluginRegistrant.register(with: self)     return super.application(application, didFinishLaunchingWithOptions: launchOptions)   }      // <Add>   override func applicationWillResignActive(     _ application: UIApplication   ) {     self.window.isHidden = true;   }   override func applicationDidBecomeActive(     _ application: UIApplication   ) {     self.window.isHidden = false;   }     }