问题
I'm developing a mobile puzzle game in Unity, when I exit my game to the home screen and return back- the game continues from the same spot and it seems to be fine (without overriding onPause/onStart), am I missing something? Do I need to store variables when exit? What do people usually save? I'm afraid to have bugs in the future.
回答1:
I missing something?
Yes
Do I need to store variables when exit?
Yes
I'm afraid to have bugs in the future.
Yes, you will. You will run into lost variables issues. It is your responsibly to implement this. Just because everything looks and works fine now doesn't mean anything. The behavior is different on different platforms and devices and also depends on how many apps are already running on the background + current available ram. Usually, you use a class to store all important variables in your class then serialize and save them.
See this post that explains how to do this and provides a wrapper to easily save and load any class. You have to save your game state when Unity is about to be interrupted. These are the functions that can be used to detect this and you must know about:
- OnApplicationQuit()
- OnApplicationPause(bool)
- OnApplicationFocus(bool)
You have to decide which ones to use to save the data. Sometimes, you must use multiple of them due to the behavior of each one in each platform. It's worth reading the Doc on each one to understand what they do on each platform.
来源：https://stackoverflow.com/questions/45847057/do-i-have-to-use-onpause-onstart-ondestroy