How to set Apple's mobile phone to display only information and not content?

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1, wake up the phone, find the settings button on the phone desktop, and click Open.

2. Slide down the settings page to find the notification bar, and click Enter.

3. In the notification interface, you can find the display preview bar at the top and click Enter.

4. In the new interface, find the "Never" column. After clicking the check box, Apple's mobile phone will only display information, not information content.