tomquirk / ble-react-native-app Goto Github PK

Learnings:

• need to explicitly request permission for a bunch of things (bluetooth, location etc). Can't just add them to the manifest
• apparently, may need to delay scanning until a few seconds after launch?
• plug the phone in to laptop, way easier/more stable
• bleManager needs to be instantiated once, ever. Dont put it in a component or hook
• expo start and expo run:android are somehow different?
• eas build lets you run the build on Expo's hosted service, then you get a link. It's slower though.
• Emulators don't work. Need a real device.
• You actually do need the npx to start commands. Otherwise there's weird version conflicts (somehow?)
• Java/JDK 17 only
• get the expo app on device
• Need android dev studio
• Need to add ANDROID_HOME to $PATH

Random commands I've run:

• eas build:configure
• eas build --profile development --platform android
• npx expo start --dev-client
• npx expo run:android
• npx expo prebuild
• adb uninstall "com.domain.my-app" - uninstalls the app, if you actually installed it