Contexto: Não é possível ler propriedades de indefinidamente
import { SignedContext } from ".../addons/Signed"
SAMER SAEID
import { SignedContext } from ".../addons/Signed"function App = () => {
const [signedIn, setSignedIn] = useState(0)
const contextValue = React.useMemo(() => ({signedIn, setSignedIn}), [singedIn])
// your application structure must be wrapped inside here.
// as an example I have only used ProfileScreen.
// Usually this is your root stack.
return (
<SignedContext.Provider value ={contextValue}>
<ProfileScreen />
</SignedContext.Provider>
)
}