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fix undefined of an Object appState.remove #16

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fix undefined of an Object appState.remove #16

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17 changes: 10 additions & 7 deletions dist/index.js
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Original file line number Diff line number Diff line change
@@ -1,28 +1,31 @@
import { useState, useEffect } from 'react';
import { AppState } from 'react-native';
import { useState, useEffect } from "react";
import { AppState } from "react-native";

export default function useAppState(settings) {
const { onChange, onForeground, onBackground } = settings || {};
const [appState, setAppState] = useState(AppState.currentState);

useEffect(() => {
function handleAppStateChange(nextAppState) {
if (nextAppState === 'active' && appState !== 'active') {
if (nextAppState === "active" && appState !== "active") {
isValidFunction(onForeground) && onForeground();
} else if (appState === 'active' && nextAppState.match(/inactive|background/)) {
} else if (
appState === "active" &&
nextAppState.match(/inactive|background/)
) {
isValidFunction(onBackground) && onBackground();
}
setAppState(nextAppState);
isValidFunction(onChange) && onChange(nextAppState);
}
const appState = AppState.addEventListener('change', handleAppStateChange);
const appState = AppState.addEventListener("change", handleAppStateChange);

return () => appState.remove();
return () => appState?.remove();
}, [onChange, onForeground, onBackground, appState]);

// settings validation
function isValidFunction(func) {
return func && typeof func === 'function';
return func && typeof func === "function";
}
return { appState };
}