將「cameraDevice」更改爲後端和前端（在UIImagePickerController旁邊）

Question

是否有任何其他API提供將「cameraDevice」更改爲後端和前端？ 旁邊的「UIImagePickerController」的cameraDevice屬性？

Answer 1

這個功能讓我解決了這個問題。

- (AVCaptureDevice *)frontFacingCamera 
{ 
    NSArray *videoDevices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeVideo]; 
    AVCaptureDevice *captureDevice = nil; 
    for (AVCaptureDevice *device in videoDevices) 
    { 
     if (device.position == AVCaptureDevicePositionFront) { 
      captureDevice = device; 
      break; 
     } 
    } 
    return captureDevice; 
}