KScreenshotDetector is Kotlin Multiplatform (Android, iOS) library to detect when users take device screenshots.

Add the dependency to your project:

[versions]
kscreenshot-detector = "1.0.0"

[libraries]
kScreenshotDetector = { module = "com.viktormykhailiv:kscreenshot-detector", version.ref = "kscreenshot-detector" }

[plugins]

implementation(libs.kScreenshotDetector)

repositories {
    mavenCentral()
}

dependencies {
    implementation("com.viktormykhailiv:kscreenshot-detector:1.0.0")
}

The API is simple, you just collect events when screenshot is detected and KScreenshotDetector cares itself about platform's internal logic (e.g. registering listeners, OS versions).

KScreenshotDetector().detectScreenshots()
    .collect {
        println("Detected screenshot")
    }

Prior to Android 14 there is no reliable API for screenshot detection, so KScreenshotDetector uses a workaround which requires READ_EXTERNAL_STORAGE permission.

Make sure before using KScreenshotDetector you have granted READ_EXTERNAL_STORAGE permission, otherwise detectScreenshots will throw ReadExternalStoragePermissionNotGrantedException.

KScreenshotDetector is Swift compatible and can be added as package dependency to Xcode projects.

import KScreenshotDetectorK

for await _ in KScreenshotDetector().detectScreenshots() {
    print("Detected screenshot")
}

1. In Xcode, choose File | Add Package Dependencies.

2. In the search field, enter https://github.com/vitoksmile/KScreenshotDetector-SPM:

3. Press the Add package button.