Package detailsv1.5.3

screen_protector

Safe Data Leakage via Application Background Screenshot and Prevent Screenshot for Android and iOS.

AndroidiOS

pub.dev API documentation Source code

30-day downloads: 128K
Likes: 326
Pub points: 150

Install package

flutter pub add screen_protector

Package Overview

Package selection guidance compiled from public package information, community data, and project usage.

Screen Protector is a Flutter package that safeguards sensitive data by preventing unauthorized screenshots when the app runs in the background on both Android and iOS. It leverages platform-specific mechanisms to detect and block screenshot attempts, reducing the risk of data leakage. Ideal for apps handling confidential information such as banking, healthcare, or secure messaging, it enhances security without requiring complex implementation. The package integrates seamlessly with Flutter projects via a simple pub add command.

Use cases

Protecting sensitive user data in financial apps
Preventing screen capture in healthcare applications
Securing confidential communications
Blocking screenshots during app backgrounding
Enhancing privacy in enterprise mobile solutions

Key features

Prevents background screenshots on Android and iOS
Uses native platform APIs for reliable detection
Minimal integration effort with Flutter
Supports both Android and iOS platforms
Automatic screenshot blocking when app is minimized

Suitable for

Apps handling sensitive personal information
Enterprise-grade security requirements
Privacy-focused applications
Mobile banking and payment platforms
Secure messaging and communication tools

Considerations

May not work on all devices due to OS restrictions
Requires proper permission handling
Limited effectiveness against physical camera capture
Potential impact on user experience if overused
Not a substitute for end-to-end encryption

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

screen_protector

Safe Data Leakage via Application Background Screenshot and Prevent Screenshot for Android and iOS.

Important (Breaking Change)

Versions 1.4.4 through 1.4.13 may cause crashes on some devices. Please use version 1.4.3 or earlier, or upgrade to version 1.5.1 or later.

Feature

Import

import 'package:screen_protector/screen_protector.dart';

iOS

Protect Data Leakage Background Screenshot

Protect data leakage with image

await ScreenProtector.protectDataLeakageWithImage('LaunchImage');

Protect data leakage with color ON

await ScreenProtector.protectDataLeakageWithColor(Colors.white);

Protect data leakage with color OFF

await ScreenProtector.protectDataLeakageWithColorOff();

Protect data leakage with blur ON

await ScreenProtector.protectDataLeakageWithBlur();

Protect data leakage with blur OFF

await ScreenProtector.protectDataLeakageWithBlurOff();

Prevent Screenshot

await ScreenProtector.preventScreenshotOn();

await ScreenProtector.preventScreenshotOff();

Check Screen Recording

final isRecording = await ScreenProtector.isRecording();

Android

Protect Data Leakage Background Screenshot and Prevent Screenshot

await ScreenProtector.protectDataLeakageOn();

await ScreenProtector.preventScreenshotOn();

await ScreenProtector.protectDataLeakageOff();

await ScreenProtector.preventScreenshotOff();

Protect Data Leakage for Android 12+ (Optional)

https://github.com/prongbang/screen-protector

import com.prongbang.screenprotect.AndroidScreenProtector

class MainActivity : FlutterFragmentActivity() {

    private val screenProtector by lazy { AndroidScreenProtector.newInstance(this) }

    // For Android 12+
    override fun onWindowFocusChanged(hasFocus: Boolean) {
        super.onWindowFocusChanged(hasFocus)
        screenProtector.process(hasFocus.not())
    }
}

Usage

Android

Protect Data Leakage Background Screenshot and Prevent Screenshot.

import 'package:screen_protector/screen_protector.dart';

class _PreventScreenshotPageState extends State<MyApp> {

  void _preventScreenshotOn() async => await ScreenProtector.protectDataLeakageOn();

  void _protectDataLeakageOff() async => await ScreenProtector.protectDataLeakageOff();

  @override
  void initState() {
    _preventScreenshotOn();
    super.initState();
  }

  @override
  void dispose() {
    _protectDataLeakageOff();
    super.dispose();
  }

}

iOS

Prevent Screenshot

import 'package:screen_protector/screen_protector.dart';

class _PreventScreenshotPageState extends State<MyApp> {

  void _preventScreenshotOn() async => await ScreenProtector.preventScreenshotOn();

  void _preventScreenshotOff() async => await ScreenProtector.preventScreenshotOff();

  @override
  void initState() {
    _preventScreenshotOn();
    super.initState();
  }

  @override
  void dispose() {
    _preventScreenshotOff();
    super.dispose();
  }

}

Protect data leakage with color

import 'package:screen_protector/screen_protector.dart';

class _ProtectDataLeakagePageState extends State<MyApp> {

  void _protectDataLeakageWithColor() async => await ScreenProtector.protectDataLeakageWithColor(Colors.white);

  @override
  void initState() {
    _protectDataLeakageWithColor();
    super.initState();
  }

}

Protect data leakage with image

import 'package:screen_protector/screen_protector.dart';

class _ProtectDataLeakagePageState extends State<MyApp> {

  void _protectDataLeakageWithImage() async => await ScreenProtector.protectDataLeakageWithImage('LaunchImage');

  @override
  void initState() {
    _protectDataLeakageWithImage();
    super.initState();
  }

}

Protect data leakage with blur

import 'package:screen_protector/screen_protector.dart';

class _ProtectDataLeakagePageState extends State<MyApp> {

  void _protectDataLeakageWithBlur() async => await ScreenProtector.protectDataLeakageWithBlur();

  @override
  void initState() {
    _protectDataLeakageWithBlur();
    super.initState();
  }

}