Smile, it’s CameraX! [preview and capture] | Capture - Step 1: create ImageCapture reference

CameraXSample.kt

val imageCapture = ImageCapture.Builder().build()

// SETUP CAPTURE MODE
// to optimize photo capture for quality
val captureMode = ImageCapture.CAPTURE_MODE_MAXIMIZE_QUALITY

// to optimize photo capture for latency (default)
val captureMode = ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY

imageCapture = ImageCapture.Builder()
    .setCaptureMode(captureMode)
    .build()

// SETUP FLASH MODE
// flash will always be used when taking a picture
val flashMode = ImageCapture.FLASH_MODE_ON

// flash will never be used when taking a picture (default)
val flashMode = ImageCapture.FLASH_MODE_OFF

// flash will be used according to the camera system's determination
val flashMode = ImageCapture.FLASH_MODE_AUTO

imageCapture = ImageCapture.Builder()
    .setFlashMode(flashMode)
    .build()

// SETUP ASPECT RATIO
// 16:9 standard aspect ratio
val aspectRatio = AspectRatio.RATIO_16_9

// 4:3 standard aspect ratio (default)
val aspectRatio = AspectRatio.RATIO_4_3

imageCapture = ImageCapture.Builder()
    .setTargetAspectRatio(aspectRatio)
    .build()

// SETUP TARGET RESOLUTION
val metrics = DisplayMetrics().also { previewView.display.getRealMetrics(it) }
val screenSize = Size(metrics.widthPixels, metrics.heightPixels)

imageCapture = ImageCapture.Builder()
    .setTargetResolution(screenSize)
    .setTargetName("CameraConference")
    .build()