How to change app theme using a promise with react native AsyncStorage?

Question

i create 2 themes in my react native project and works good.

I just need to change lightMode to darkMode.

To use this theme i just need to import and use:

but now, i need to import lightMode dynamic, i can just use a switch:

but how i can do this, with asyncStorage? Because i need to work with promises:

please reopen this question, not is just a problem with promises, maybe i will need re-architect my project — Jean Catarina, Apr 19 '20 at 22:10

score 0 · Accepted Answer · answered Apr 19 '20 at 21:19

0

For such situations,

You need to load all those data into memory from storage(AsyncStorage in this case) right after the app starts.

You can do this while you show the splash screen.

answered Apr 19 '20 at 21:19

Pushan Gupta

i understand, but if the user change the theme, he will need restart the app? :/ – Jean Catarina Apr 19 '20 at 22:00
1

@JeanCatarina No. You can dynamically change the theme at runtime. https://www.seishin.me/dynamic-switching-of-themes-in-react-native-app/ – Pushan Gupta Apr 19 '20 at 22:17

1 Answers1