android-Flashlight Camera2 API

我可以在Android Camera2 API中同时使用相机预览和手电筒吗？

当我尝试使用CameraManager.setTorchMode(String cameraId,启用boolean)时,如果未打开相机,则可以正常工作.但是当Camera打开并且尝试setTorchMode时,我收到此异常：

CameraService: setTorchMode: torch mode of camera 0 is not available because camera is in use

解决方法:

该错误表明所涉及的相机已在使用中.

您需要相应地设置FLASH_MODE和CONTROL_AE_MODE.

mPreviewRequestBuilder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);
mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON);
// Then Send request to current camera session
mCaptureSession.setRepeatingRequest(mPreviewRequestBuilder.build(), null, null);

标签：android,flashlight,camera2
来源： https://codeday.me/bug/20191013/1906052.html