@td-design/rn-hooks/lib/commonjs/useBackHandler/index.js

从ahooks里面抽取的一些在rn项目里可以使用的hooks。提高开发效率

'use strict';

var react = require('react');
var reactNative = require('react-native');

function useBackHandler(handler) {
    react.useEffect(function () {
        var subscription = reactNative.BackHandler.addEventListener('hardwareBackPress', handler);
        return function () {
            if (typeof (subscription === null || subscription === void 0 ? void 0 : subscription.remove) === 'function') {
                subscription.remove();
            }
            else {
                // React Native < 0.65
                reactNative.BackHandler.removeEventListener('hardwareBackPress', handler);
            }
        };
    }, [handler]);
}

module.exports = useBackHandler;