How request permissions with Jetpack Compose?

Question

How should be implemented requesting permission from Jetpack Compose View? I'm trying implement application accessing Camera with Jetpack Compose. I tried example from How to get Current state or context in Jetpack Compose Unfortunately example is no longer working with dev06.

        fun hasPermissions(context: Context) = PERMISSIONS_REQUIRED.all {
            ContextCompat.checkSelfPermission(context, it) == PackageManager.PERMISSION_GRANTED
        }
    }
}

Answer 1

as compose_version = '1.0.0-beta04' and

implementation 'androidx.activity:activity-compose:1.3.0-alpha06'

you can do request permission as simple as this:

@Composable
fun ExampleScreen() {
    val launcher = rememberLauncherForActivityResult(
        ActivityResultContracts.RequestPermission()
    ) { isGranted: Boolean ->
        if (isGranted) {
            // Permission Accepted: Do something
            Log.d("ExampleScreen","PERMISSION GRANTED")

        } else {
            // Permission Denied: Do something
            Log.d("ExampleScreen","PERMISSION DENIED")
        }
    }
    val context = LocalContext.current

    Button(
        onClick = {
            // Check permission
            when (PackageManager.PERMISSION_GRANTED) {
                ContextCompat.checkSelfPermission(
                    context,
                    Manifest.permission.READ_EXTERNAL_STORAGE
                ) -> {
                    // Some works that require permission
                    Log.d("ExampleScreen","Code requires permission")
                }
                else -> {
                    // Asking for permission
                    launcher.launch(Manifest.permission.READ_EXTERNAL_STORAGE)
                }
            }
        }
    ) {
        Text(text = "Check and Request Permission")
    }
}