take photo with both cameras like frontback

问题

I am working on an app in which I am using camera. How can we take photo using both cameras like Frontback and DuoCam at the same time on the same screen ?

回答1:

This is called as RearCam & FrontCam

You can use it like

 if (_imagePicker.cameraDevice == UIImagePickerControllerCameraDeviceFront)
    _imagePicker.cameraDevice = UIImagePickerControllerCameraDeviceRear;
else
    _imagePicker.cameraDevice = UIImagePickerControllerCameraDeviceFront;

where _imagePicker -> an instance of the imagepickercontroller

来源：https://stackoverflow.com/questions/17917182/take-photo-with-both-cameras-like-frontback