@td-design/rn-hooks/lib/commonjs/useKeyboard/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 _tslib = require('../_virtual/_tslib.js');
var react = require('react');
var reactNative = require('react-native');
var index = require('../useBoolean/index.js');
var index$1 = require('../useSafeState/index.js');

var emptyCoord = Object.freeze({
    screenX: 0,
    screenY: 0,
    width: 0,
    height: 0,
});
var initialValue = {
    start: emptyCoord,
    end: emptyCoord,
};
function useKeyboard() {
    var _a = _tslib.__read(index(false), 2), shown = _a[0], _b = _a[1], setTrue = _b.setTrue, setFalse = _b.setFalse;
    var _c = _tslib.__read(index$1(initialValue), 2), coords = _c[0], setCoords = _c[1];
    var _d = _tslib.__read(index$1(0), 2), keyboardHeight = _d[0], setKeyboardHeight = _d[1];
    react.useEffect(function () {
        var subscriptions = [
            reactNative.Keyboard.addListener('keyboardWillShow', function (e) {
                setCoords({ start: e.startCoordinates, end: e.endCoordinates });
            }),
            reactNative.Keyboard.addListener('keyboardDidShow', function (e) {
                setTrue();
                setCoords({ start: e.startCoordinates, end: e.endCoordinates });
                setKeyboardHeight(e.endCoordinates.height);
            }),
            reactNative.Keyboard.addListener('keyboardWillHide', function (e) {
                setCoords({ start: e.startCoordinates, end: e.endCoordinates });
            }),
            reactNative.Keyboard.addListener('keyboardDidHide', function (e) {
                setFalse();
                if (e) {
                    setCoords({ start: e.startCoordinates, end: e.endCoordinates });
                }
                else {
                    setCoords(initialValue);
                    setKeyboardHeight(0);
                }
            }),
        ];
        return function () {
            subscriptions.forEach(function (subscription) { return subscription.remove(); });
        };
    }, [setCoords, setFalse, setKeyboardHeight, setTrue]);
    return {
        keyboardShown: shown,
        keyboardHeight: keyboardHeight,
        coords: coords,
    };
}

module.exports = useKeyboard;