要检测ARCore在前置摄像头上是否有效,您可以使用以下代码示例:
import android.app.Activity;
import android.content.Context;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraManager;
import android.os.Bundle;
import android.util.Log;
import com.google.ar.core.ARCore;
public class MainActivity extends Activity {
private static final String TAG = "MainActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 检查ARCore是否可用
if (ARCore.isSupported()) {
// 获取前置摄像头ID
String frontCameraId = getFrontCameraId();
if (frontCameraId != null) {
// 检查前置摄像头是否支持ARCore
boolean isSupported = ARCore.isDepthModeSupported(
this, CameraCharacteristics.LENS_FACING_FRONT, frontCameraId);
if (isSupported) {
Log.d(TAG, "ARCore is supported on front camera");
} else {
Log.d(TAG, "ARCore is not supported on front camera");
}
} else {
Log.d(TAG, "Front camera not found");
}
} else {
Log.d(TAG, "ARCore is not supported");
}
}
private String getFrontCameraId() {
CameraManager cameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
try {
for (String cameraId : cameraManager.getCameraIdList()) {
CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
Integer lensFacing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (lensFacing != null && lensFacing == CameraCharacteristics.LENS_FACING_FRONT) {
return cameraId;
}
}
} catch (CameraAccessException e) {
e.printStackTrace();
}
return null;
}
}
这段代码首先检查设备是否支持ARCore,然后获取前置摄像头的ID。接下来,使用ARCore.isDepthModeSupported()
方法来判断前置摄像头是否支持ARCore。如果支持,将打印日志信息"ARCore is supported on front camera",如果不支持,将打印日志信息"ARCore is not supported on front camera"。如果设备没有前置摄像头,将打印日志信息"Front camera not found"。如果设备不支持ARCore,将打印日志信息"ARCore is not supported"。
请注意,此代码示例仅适用于使用ARCore和Camera2 API的Android应用程序。确保已将ARCore和Camera2 API添加到您的项目依赖项中。