One of the following questions is: How can a portable navigation system know that the user is reversing and immediately switches to the rear view function? There are three ways to teach you:
The first method is the most stupid but also the simplest and most reliable way to use the buttons on the portable navigation.
A certain button can be defined as a rear view switching button. Before the user reverses the button, the system immediately switches to the rear view state; when the vehicle is finished, press the button again, and the system switches back to the original interface; Simple and reliable, the bracket extension does not need to add anything; but it requires manual operation, not enough intelligence, and it is not particularly convenient for the owner. When reversing, the six-way hand and foot are used to be busy, and you have to go extra. Pressing a button is not a hassle?
