Flip Camera Face

To flip camera face from front to rear or vice versa, ARGSession must be paused beforehand, change camera face, and resume the ARGSession in the order.

A sample code of flipping camera face is written below.

<Sample Code. Flip Camera Face>
ARGSession *argSession = [[ARGSession alloc] initWithARGConfig:argConfig error:&error];
ARGCamera *camera = [[ARGCamera alloc] init];
// ARGSession Pause
[argSession pause];
[camera toggleCamera:^{
// ARGSession Resume
[argSession run];