Android 14 API Sample: Activity.ScreenCaptureCallback

DetectScreenshotsActivity.kt

package com.iyotetsuya.android14playgrounds

import android.app.Activity
import android.os.Bundle
import android.widget.Toast
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.annotation.RequiresApi
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material.Text
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import com.iyotetsuya.android14playgrounds.ui.theme.Android14PlaygroundsTheme

@RequiresApi(34)
class DetectScreenshotsActivity : ComponentActivity(), Activity.ScreenCaptureCallback {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            Android14PlaygroundsTheme {
                Box(Modifier.fillMaxSize()) {
                    Text(
                        modifier = Modifier
                            .padding(4.dp)
                            .align(Alignment.Center),
                        text = "Detect Screenshots Activity"
                    )
                }
            }
        }
    }

    override fun onStart() {
        super.onStart()
        registerScreenCaptureCallback(mainExecutor, this)
    }

    override fun onStop() {
        super.onStop()
        unregisterScreenCaptureCallback(this)
    }

    override fun onScreenCaptured() {
        Toast.makeText(
            this, "Screen Captured.", Toast.LENGTH_SHORT
        ).show()
    }
}