解决该问题的方法是，通过查询CaptureRequest对象中的可用控制选项并将其与Characteristics对象中的可用结果键进行比较，来确定可用的结果键集。然后，使用确定的结果键集来检索CaptureResult中的值。

以下代码可以用于获取可用结果键的列表：

CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); int format = ImageFormat.RAW_SENSOR; Size[] sizes = map.getOutputSizes(format); Range[] fpsRanges = characteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES); Size size = sizes[0]; int fps = fpsRanges[0].getUpper();

CaptureRequest.Builder builder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);//改成你自己的需求 builder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO); builder.set(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE, fpsRanges[0]); builder.set(CaptureRequest.CONTROL_AWB_MODE,CameraMetadata.CONTROL_AWB_MODE_AUTO); builder.set(CaptureRequest.CONTROL_AE_EXPOSURE_COMPENSATION,0); builder.set(CaptureRequest.SENSOR_SENSITIVITY,100); builder.set(CaptureRequest.SENSOR_FRAME_DURATION, (long) (1000000000L/fps) ); builder.set(CaptureRequest.SENSOR_EXPOSURE_TIME, 1000000); builder.set(CaptureRequest.CONTROL_AE_ANTIBANDING_MODE,1); builder.addTarget(new Surface(mTextureView.getSurfaceTexture())); CaptureRequest captureRequest = builder.build();

List> captureResultKeys = new ArrayList<>(captureRequest.getKeys());

然后可以使用captureResultKeys在CaptureResult中检索所需的值。