将“cameraDevice”改为后方和前方（UIImagePickerController旁边）

Question

是否有任何其他API可以提供更改＆＃34; cameraDevice＆＃34;后方和前方？ 旁边＆＃34; UIImagePickerController＆＃34;的cameraDevice属性？

Answer 1

这个功能让我解决了这个问题。

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