3D Touch is a three-dimensional touch technology, which is called a new generation of multi-touch technology by Apple. It is Force Touch used on Apple Watch, and the screen can sense different pressure-sensitive touches. Press an icon hard and a translucent menu will pop up, which contains some shortcut operations under the application.
Pressing hard on the mailing list can also quickly pop up a window to view the mail. In the mailing list, press a message in the mailing list hard, and the complete message content will be displayed, and then it will be closed without sliding left and right. Tap the phone to see the nearest contacts, press the camera to take a quick selfie, and press the photo gallery to browse the big picture quickly.
Extended data:
Take iPhone8 as an example, how to open 3dtouch:
Step 1: First open "Settings" on iPhone8 to enter.
Step 2: Click the "General" option, and then on the general page, find "Accessibility" to open it.
Step 3: Open the "Accessibility", drop down the interface, find the "3D Touch" option, and click Enter.
Step 4: Open the 3D touch button and set the 3D touch sensitivity. This 3D touch is actually 3D touch.
References:
Baidu encyclopedia -3D Touch