react-native-simcard-info/lib/module/hooks/useSIMStateChange.js

React native library to get sim card info in android

"use strict";

import React from 'react';
import NativeSimcardInfo from "../NativeSimcardInfo.js";
const isEqualObjectArray = (prevState, newState) => {
  if (prevState.length !== newState.length) return false;
  for (let i = 0; i < prevState.length; i++) {
    const prevObj = prevState[i];
    const newObj = newState[i];
    if (!prevObj || !newObj) return false;
    const prevObjEntries = Object.entries(prevObj).sort();
    const newObjEntries = Object.entries(newObj).sort();
    if (JSON.stringify(prevObjEntries) !== JSON.stringify(newObjEntries)) return false;
  }
  return true;
};
export const useSIMStateChange = () => {
  const [simState, setSimState] = React.useState([]);
  const simStateRef = React.useRef([]);
  React.useEffect(() => {
    NativeSimcardInfo.addOnSimCardStateChangeListener();
    const handleStateChange = newSimState => {
      // Compare with the reference value instead of triggering re-renders
      if (!isEqualObjectArray(simStateRef.current, newSimState)) {
        simStateRef.current = newSimState; // Update the reference
        setSimState(newSimState); // Trigger a re-render only if needed
      }
    };
    NativeSimcardInfo.onSIMCardStateChange(handleStateChange);
    return () => {
      NativeSimcardInfo.removeOnSimCardStateChangeListener();
    };
  }, []);
  return {
    simState
  };
};
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