How does Samsung a7 set the weather to the sun?

Settings > Display > Automatically rotate the screen, or drop down the notification bar.

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Introduction: Gravity induction refers to the perception of the gravity direction of the earth. At present, many devices are equipped with gravity sensing chips. Mobile phone gravity sensing technology: realized by piezoelectric effect. Simply put, the horizontal direction is determined by measuring the components of gravity in two orthogonal directions of an internal weight (the weight and the piezoelectric sheet are integrated).