AI グラス用の最初のアクティビティを作成する

<application>
    <activity
        android:name=".AIGlassesActivity"
        android:exported="true"
        android:requiredDisplayCategory="xr_projected"
        android:label="Example AI Glasses activity">
      <intent-filter>
        <action android:name="android.intent.action.MAIN"/>
      </intent-filter>
    </activity>
</application>

/**
 *   When this activity launches, it stays in the started state.
 */
class AIGlassesActivity : ComponentActivity() {

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

    val projectedWindowManager = ProjectedWindowManager.create(this)

    setContent {

      GlassesComposeContent {
        GlimmerTheme {
          TopBarScaffold(modifier = Modifier.background(color = Color.Black)) {

            ProjectedDisplayController.create(activity)
            .addPresentationModeChangedListener {
            presentationModeFlags ->

            // Check whether visuals are on or off
            val areVisualsOff = !presentationModeFlags.hasPresentationMode(VISUALS_ON)
            }

            // Conditional UI based on presentation mode.
            if (areVisualsOff) {
              // Implementation for the when the display is off.
            } else {
              DisplayUi()
            }
          }
        }
      }
    }
  }

  override fun onStart() {
    // Do things to make the user aware that this activity is active (for
    // example, play audio frequently), when the display is off.
  }

  override fun onStop() {
    // Stop all the data source access.
  }

}

@Composable
fun DisplayUi() {
    Box(
        modifier = Modifier
            .fillMaxSize(),
        contentAlignment = Alignment.Center
    ) {
        Text("Hello World!")
    }
}

val options = ProjectedContext.createProjectedActivityOptions(context)

val intent = Intent(context, AIGlassesActivity::class.java)

context.startActivity(intent, options.toBundle())