@kirz/react-native-toolkit/lib/commonjs/hooks/useAppActivityEffect.js

Toolkit to speed up React Native development

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useAppActivityEffect = useAppActivityEffect;
var _react = require("react");
var _reactNative = require("react-native");
function useAppActivityEffect(callback, deps) {
  (0, _react.useEffect)(() => {
    let lastCheckTimestamp = 0;
    const onStateChanged = async initial => {
      const newTimestamp = new Date().valueOf();
      if (newTimestamp - lastCheckTimestamp < 2000) {
        return; // small delay for too frequent requests
      }

      lastCheckTimestamp = newTimestamp;
      callback(initial);
    };
    const listener = _reactNative.AppState.addEventListener('change', async state => {
      if (state === 'active') {
        onStateChanged();
      }
    });
    onStateChanged(true);
    return () => {
      listener.remove();
    };
  }, deps);
}
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