@td-design/rn-hooks/lib/commonjs/useAccessibilityInfo/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('../useSafeState/index.js');

function useAccessibilityStateListener(eventName, initializerName) {
    var _a = _tslib.__read(index(undefined), 2), isEnabled = _a[0], setIsEnabled = _a[1];
    react.useEffect(function () {
        if (!reactNative.AccessibilityInfo[initializerName])
            return;
        reactNative.AccessibilityInfo[initializerName]().then(setIsEnabled);
        var subscription = reactNative.AccessibilityInfo.addEventListener(eventName, setIsEnabled);
        return function () {
            if (typeof (subscription === null || subscription === void 0 ? void 0 : subscription.remove) === 'function') {
                subscription.remove();
            }
            else {
                // @ts-ignore - need update @types/react-native@0.65.x
                reactNative.AccessibilityInfo.removeEventListener(eventName, setIsEnabled);
            }
        };
    }, [eventName, initializerName, setIsEnabled]);
    return isEnabled;
}
function useAccessibilityInfo() {
    // 字体加粗（IOS）
    var boldTextEnabled = useAccessibilityStateListener('boldTextChanged', 'isBoldTextEnabled');
    // 灰色模式（IOS。色盲使用）
    var grayscaleEnabled = useAccessibilityStateListener('grayscaleChanged', 'isGrayscaleEnabled');
    // 反转显示屏的颜色（IOS）
    var invertColorsEnabled = useAccessibilityStateListener('invertColorsChanged', 'isInvertColorsEnabled');
    // 减弱动态效果
    var reduceMotionEnabled = useAccessibilityStateListener('reduceMotionChanged', 'isReduceMotionEnabled');
    // 降低透明度 (IOS)
    var reduceTransparencyEnabled = useAccessibilityStateListener('reduceTransparencyChanged', 'isReduceTransparencyEnabled');
    // 是否启用读屏应用
    var screenReaderEnabled = useAccessibilityStateListener('screenReaderChanged', 'isScreenReaderEnabled');
    return {
        screenReaderEnabled: screenReaderEnabled,
        grayscaleEnabled: grayscaleEnabled,
        invertColorsEnabled: invertColorsEnabled,
        reduceMotionEnabled: reduceMotionEnabled,
        reduceTransparencyEnabled: reduceTransparencyEnabled,
        boldTextEnabled: boldTextEnabled,
    };
}

module.exports = useAccessibilityInfo;