We press and hold [power button] and [home button] at the same time in the interface where we need to take a screenshot. Hearing a clicking sound proves that the screenshot is successful.
Samsung Galaxy A7 system recommended gesture screenshot
On the mobile phone, open [Settings] and select [Action], then open [Capture with palm], and then we can take a screenshot by sliding the palm of the screen on the interface where we need to take a screenshot. The operation is shown in the figure: