How to prevent Android system from killing the app in background and losing your work?
After switching to other apps, you find that the app interface is reset when you switch back? The file being drawn is closed?
This is because some systems will frantically kill apps that are switched to the background. You can put this software in the list of apps that will not be killed in the system settings to reduce the probability of this happening.
Taking Xiaomi's system as an example, the operation method is to enter the background app list interface, long press the app, and click the lock button next to it.
Different brands have different operating methods, You can Google "(XXX brand), how to prevent background apps from being killed by the system" to get more information.
In addition, it is recommended to turn on Auto Save (Settings->General->Auto Save) to reduce the possibility of losing the drawn content.