How to set the depth of field effect for Apple iphone x photos?

1, find and open the camera app on the mobile phone desktop, and enter the photo page;

2. On the photo page, select the scene or object to be photographed and the blurred background for framing;

3. Because the blurred background has a certain distance, double-click or long-press the screen, and "Auto Exposure/Auto Focus Lock" appears. Click on the white circle at the bottom of the screen to take pictures;

4. After taking a photo, you can see that the background is blurred.