Shulou(Shulou.com)05/31 Report--

Audio commentary

Hello, everyone. The meeting will answer your questions. The ios15 update shows that an update has been requested, and the ios update prompts that the update cannot be installed. Many people don't know yet. Now let's take a look at it.

Answer:

1. IOS downloaded updates that could not be installed because it was not verified by Apple's server and was usually caused by a network connection problem. It is recommended that you replace it with a new network and try again, or turn off the phone, reboot and reconnect it to the iCloud. If it still doesn't work, you can restore the phone's network settings.

2. The operation mechanism of ios

3. The tombstone mechanism, as the name implies, is to record the status of app in the system like words engraved on the tombstone.

4. For example, when the iphone application exits the foreground, some running status of the current app will be recorded. When the program is restored from the background to the foreground, app

5. The advantage of using the tombstone mechanism is that because the tombstone mechanism only records the status of the application when it exits from the foreground, in iphone, when the application exits the background.

This is the end of this article. I hope it will be helpful to all of you.

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