Mengonfigurasi sesi ARCore di Android

Konfigurasi sesi ARCore untuk membangun pengalaman AR untuk aplikasi Anda.

Apa yang dimaksud dengan sesi?

Semua proses AR, seperti pelacakan gerakan, pemahaman lingkungan, dan estimasi pencahayaan, terjadi di dalam ARCore sesi. Session adalah titik entri utama ke ARCore Compute Engine API. Ia mengelola status sistem AR dan menangani siklus proses sesi, sehingga aplikasi untuk membuat, mengkonfigurasi, memulai, atau menghentikan sesi. Yang paling penting, memungkinkan aplikasi untuk menerima {i>frame<i} yang mengizinkan akses ke gambar kamera dan pose perangkat.

Sesi ini dapat digunakan untuk mengonfigurasi fitur berikut:

Memastikan ARCore sudah diinstal dan sudah diupdate

Sebelum membuat Session, pastikan ARCore sudah diinstal dan sudah diupdate. Jika ARCore tidak diinstal, pembuatan sesi gagal dan penginstalan berikutnya atau upgrade ARCore memerlukan mulai ulang aplikasi.

Java

// Verify that ARCore is installed and using the current version.
private boolean isARCoreSupportedAndUpToDate() {
  ArCoreApk.Availability availability = ArCoreApk.getInstance().checkAvailability(this);
  switch (availability) {
    case SUPPORTED_INSTALLED:
      return true;

    case SUPPORTED_APK_TOO_OLD:
    case SUPPORTED_NOT_INSTALLED:
      try {
        // Request ARCore installation or update if needed.
        ArCoreApk.InstallStatus installStatus = ArCoreApk.getInstance().requestInstall(this, true);
        switch (installStatus) {
          case INSTALL_REQUESTED:
            Log.i(TAG, "ARCore installation requested.");
            return false;
          case INSTALLED:
            return true;
        }
      } catch (UnavailableException e) {
        Log.e(TAG, "ARCore not installed", e);
      }
      return false;

    case UNSUPPORTED_DEVICE_NOT_CAPABLE:
      // This device is not supported for AR.
      return false;

    case UNKNOWN_CHECKING:
      // ARCore is checking the availability with a remote query.
      // This function should be called again after waiting 200 ms to determine the query result.
    case UNKNOWN_ERROR:
    case UNKNOWN_TIMED_OUT:
      // There was an error checking for AR availability. This may be due to the device being offline.
      // Handle the error appropriately.
  }
}

Kotlin

// Verify that ARCore is installed and using the current version.
fun isARCoreSupportedAndUpToDate(): Boolean {
  return when (ArCoreApk.getInstance().checkAvailability(this)) {
    Availability.SUPPORTED_INSTALLED -> true
    Availability.SUPPORTED_APK_TOO_OLD, Availability.SUPPORTED_NOT_INSTALLED -> {
      try {
        // Request ARCore installation or update if needed.
        when (ArCoreApk.getInstance().requestInstall(this, true)) {
          InstallStatus.INSTALL_REQUESTED -> {
            Log.i(TAG, "ARCore installation requested.")
            false
          }
          InstallStatus.INSTALLED -> true
        }
      } catch (e: UnavailableException) {
        Log.e(TAG, "ARCore not installed", e)
        false
      }
    }

    Availability.UNSUPPORTED_DEVICE_NOT_CAPABLE ->
      // This device is not supported for AR.
      false

    Availability.UNKNOWN_CHECKING -> {
      // ARCore is checking the availability with a remote query.
      // This function should be called again after waiting 200 ms to determine the query result.
    }
    Availability.UNKNOWN_ERROR, Availability.UNKNOWN_TIMED_OUT -> {
      // There was an error checking for AR availability. This may be due to the device being offline.
      // Handle the error appropriately.
    }
  }
}

Membuat sesi

Membuat dan mengonfigurasi sesi di ARCore.

Java

public void createSession() {
  // Create a new ARCore session.
  session = new Session(this);

  // Create a session config.
  Config config = new Config(session);

  // Do feature-specific operations here, such as enabling depth or turning on
  // support for Augmented Faces.

  // Configure the session.
  session.configure(config);
}

Kotlin

fun createSession() {
  // Create a new ARCore session.
  session = Session(this)

  // Create a session config.
  val config = Config(session)

  // Do feature-specific operations here, such as enabling depth or turning on
  // support for Augmented Faces.

  // Configure the session.
  session.configure(config)
}

Menutup sesi

Session memiliki memori heap native dalam jumlah besar. Tidak dapat secara eksplisit menutup sesi dapat menyebabkan aplikasi kehabisan memori native dan error. Kapan sesi AR tidak lagi diperlukan, panggil close() untuk dirilis Google Cloud Platform. Jika aplikasi Anda berisi satu aktivitas yang mendukung AR, panggil close() dari metode onDestroy() aktivitas.

Java

// Release native heap memory used by an ARCore session.
session.close();

Kotlin

// Release native heap memory used by an ARCore session.
session.close()

Langkah berikutnya