为 AI 眼镜请求硬件权限

<manifest ...>
    <!-- Only declare permissions that your app actually needs. In this example,
    we declare permissions for the microphone. -->
    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
    <application ...>
        ...
    </application>
</manifest>

class SampleGlassesActivity : ComponentActivity() {

  // Register the permissions launcher
    private val requestPermissionLauncher: ActivityResultLauncher<List<ProjectedPermissionsRequestParams>> =
        registerForActivityResult(ProjectedPermissionsResultContract()) { results ->
            // Check the result for the specific RECORD_AUDIO permission
            if (results[Manifest.permission.RECORD_AUDIO] == true) {
                onPermissionGranted()
            } else {
                onPermissionDenied()
            }
        }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // Audio permission is critical for the displayless AI glasses experience
        checkAndRequestAudioPermission()

        setContent {
            GlimmerTheme {
                DisplayGlassesUi()
            }
        }
    }

    // Checks for the required RECORD_AUDIO permission and requests it if necessary.

    private fun checkAndRequestAudioPermission() {
        val permission = Manifest.permission.RECORD_AUDIO
        val permissionStatus = ContextCompat.checkSelfPermission(this, permission)

        if (permissionStatus == PackageManager.PERMISSION_GRANTED) {
            // Permission is already granted
            onPermissionGranted()
        } else {
            // Permission is not granted, request it
            requestAudioPermission()
        }
    }

    private fun requestAudioPermission() {
        val params = ProjectedPermissionsRequestParams(
                        permissions = listOf(Manifest.permission.RECORD_AUDIO),
            // The rationale should explain why this permission is needed.
            // For displayless AI glasses, it's often the main input mechanism.
            rationale = "Microphone access is essential for voice commands and features on these AI glasses."
        )
        requestPermissionLauncher.launch(listOf(params))
    }

    private fun onPermissionGranted() {
        // Implement the logic for when the permission is granted

    }

    private fun onPermissionDenied() {
        // Implement the logic for when the permission is denied.
        // On displayless AI glasses, if the app requires voice/mic it should exit the activity if the critical permission is denied.
        finish()
    }
}