要解决这个问题，可以使用Google提供的CameraX插件。CameraX是一个简化了Camera2 API调用方式的库，可让开发人员更轻松地控制照相机的设置和捕获功能。

这里有一个使用CameraX和ARCore共享照相机的代码示例：

首先，在build.gradle中添加以下依赖项：

dependencies {
    // CameraX core library using camera2 implementation
    def camerax_version = "1.0.0-alpha06"
    implementation "androidx.camera:camera-core:${camerax_version}"
}

在Activity中，使用以下代码启动摄像头：

implementation 'androidx.camera:camera-camera2:1.0.0-beta04'
implementation 'androidx.camera:camera-lifecycle:1.0.0-beta04'

CameraManager cameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);

// Get the ID of the camera
String cameraId = getFrontCameraId(cameraManager); // implement your method to select the necessary camera

// Create configuration object for the viewfinder use case
PreviewConfig previewConfig = new PreviewConfig.Builder()
                                   .setTargetAspectRatio(AspectRatio.RATIO_4_3)
                                   .setLensFacing(CameraX.LensFacing.FRONT)
                                   .build();

// Create a preview use case instance and bind it to the viewfinder
Preview preview = new Preview(previewConfig);
preview.setOnPreviewOutputUpdateListener(output -> {
    ViewGroup parent = (ViewGroup) findViewById(R.id.preview_view_container);
    parent.removeAllViews();
    parent.addView(output.getView());
});

// Create a photo capture use case instance
ImageCaptureConfig imageCaptureConfig = new ImageCaptureConfig.Builder().build();
ImageCapture imageCapture = new ImageCapture(imageCaptureConfig);

// Create an ImageAnalysis use case instance and set its analyzer
ImageAnalysisConfig imageAnalysisConfig =
            new ImageAnalysisConfig.Builder()
                      .setImageReaderMode(ImageAnalysis.ImageReaderMode.ACQUIRE_LATEST_IMAGE)
                      .build();
ImageAnalysis imageAnalysis = new ImageAnalysis(imageAnalysisConfig);
imageAnalysis.setAnalyzer(new MyImageAnalyzer());

CameraX.bindToLifecycle(this, preview