36 lines
1.6 KiB
JavaScript
36 lines
1.6 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = useBackButton;
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var React = _interopRequireWildcard(require("react"));
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var _reactNative = require("react-native");
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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function useBackButton(ref) {
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React.useEffect(() => {
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const subscription = _reactNative.BackHandler.addEventListener('hardwareBackPress', () => {
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const navigation = ref.current;
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if (navigation == null) {
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return false;
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}
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if (navigation.canGoBack()) {
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navigation.goBack();
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return true;
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}
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return false;
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});
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return () => subscription.remove();
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}, [ref]);
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}
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//# sourceMappingURL=useBackButton.js.map
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