I’m very curious about why UIIntefarceOrientation value equals to -LandscapeRight when I rotate the phone to left and vice-versa.Here’s the -LandscapeRight mode:

and here’s the -LandscapeLeft mode:

Roughly said, before, when the phone was in -Portrait mode the speaker or the top of the phone was pointing up, now it’s poiting to left. But why is it -LanscapeRight?
It simply means the user interface has rotated to the right, not the device. Imagine the device still (always pointing upwards) the interface would rotate.