Two-way photographing system of mobile terminal and method for controlling the same

A method for controlling a two-way photographing system of a mobile terminal wherein the mobile terminal comprises a front light entrance and a rear light entrance symmetrical to the front light entrance, and wherein the two-way photography system comprises:

• a camera module, comprising a rotating mirror and a lens, in which the rotating mirror is rotatable about an axis of the rotating mirror to a front reflection state for reflecting incident light through the front light entrance to the lens or a rear reflection state for reflecting incident light through the rear light entrance to the lens;
• the rotating mirror comprises a first end close to the front light entrance and a second end close to the rear light entrance;
• and
• an approach sensing apparatus, located adjacent to the first end when the rotating mirror is in the front reflection state or adjacent to the second end when the rotating mirror is in the rear reflection state, and configured to detect the first end so as to generate a first detecting signal when the rotating mirror is in the front reflection state, and to detect the second end so as to generate a second detecting signal when the rotating mirror is in the rear reflection state,
• the method comprising:
• S1:
• reading the first detecting signal and the second detecting signal output by the approach sensing apparatus, judging whether the camera is in a front light receiving state or in a rear light receiving state, and executing step S2 if the camera is in the front light receiving state, executing step S3 if the camera is in the rear light receiving state;
• S2:
• judging whether a first switch command for switching from the front light receiving sate to the rear light receiving state is received, if yes, controlling the rotating mirror to rotate to the rear reflection state and setting the application in the mobile terminal according to the rear reflection state;
• S3:
• judging whether a second switch command for switching from the rear light receiving sate to the front light receiving state is received, if yes, controlling the rotating mirror to rotate to the front reflection state and setting the application in the mobile terminal according to the front reflection state.