react-i18next on React Native 没有重载匹配这个调用打字稿

Question

我正在尝试使用 typescript 4.1.2 在我的 React Native 应用程序中配置 react-i18next 11.8.2：

i18n.use(initReactI18next).init({
  resources: {
    en,
    es,
  },
  lng: 'es',
  fallbackLng: 'es',
  interpolation: {
    escapeValue: false,
  },
});

有两个资源文件（en，es）。

但是我在使用 useTranslation 钩子的 TFunction 接口上遇到了打字错误：

const {t, i18n} = useTranslation(['SelectLanguage']);]

<StyledLabel>{t('SelectLanguage:title')}</StyledLabel>

错误：

No overload matches this call.
  Overload 1 of 2, '(props: Pick<Pick<TextProps & RefAttributes<Text>, "key" | "ref" | "style" | "onLayout" | "testID" | "nativeID" | "accessible" | "accessibilityActions" | ... 35 more ... | "dataDetectorType"> & Partial<...>, "key" | ... 42 more ... | "dataDetectorType"> & { ...; } & { ...; } & { ...; }): ReactElement<...>', gave the following error.
    Type 'TFunctionResult' is not assignable to type 'string | number | TextElement | ChildElement[] | (string & {}) | (string & ReactElement<any, string | ((props: any) => ReactElement<any, string | ... | (new (props: any) => Component<any, any, any>)> | null) | (new (props: any) => Component<...>)>) | ... 20 more ... | undefined'.
      Type 'null' is not assignable to type 'string | number | TextElement | ChildElement[] | (string & {}) | (string & ReactElement<any, string | ((props: any) => ReactElement<any, string | ... | (new (props: any) => Component<any, any, any>)> | null) | (new (props: any) => Component<...>)>) | ... 20 more ... | undefined'.
  Overload 2 of 2, '(props: StyledComponentPropsWithAs<typeof Text, any, {}, never>): ReactElement<StyledComponentPropsWithAs<typeof Text, any, {}, never>, string | ... 1 more ... | (new (props: any) => Component<...>)>', gave the following error.
    Type 'TFunctionResult' is not assignable to type 'string | number | TextElement | ChildElement[] | (string & {}) | (string & ReactElement<any, string | ((props: any) => ReactElement<any, string | ... | (new (props: any) => Component<any, any, any>)> | null) | (new (props: any) => Component<...>)>) | ... 20 more ... | undefined'.
      Type 'null' is not assignable to type 'string | number | TextElement | ChildElement[] | (string & {}) | (string & ReactElement<any, string | ((props: any) => ReactElement<any, string | ... | (new (props: any) => Component<any, any, any>)> | null) | (new (props: any) => Component<...>)>) | ... 20 more ... | undefined'.ts(2769)
text.component.d.ts(15, 5): The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & Pick<Pick<TextProps & RefAttributes<Text>, "key" | "ref" | "style" | "onLayout" | "testID" | ... 38 more ... | "dataDetectorType"> & Partial<...>, "key" | ... 42 more ... | "dataDetectorType"> & { ...; } & { ...; } & { ...; }'
text.component.d.ts(15, 5): The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & Pick<Pick<TextProps & RefAttributes<Text>, "key" | "ref" | "style" | "onLayout" | "testID" | ... 38 more ... | "dataDetectorType"> & Partial<...>, "key" | ... 42 more ... | "dataDetectorType"> & { ...; } & { ...; } & { ...; }'

我可以通过像这样解析 i18n 翻译的结果来解决这个错误：

<StyledLabel>{t<string>('SelectLanguage:title')}</StyledLabel>

您知道为什么会这样吗？我认为它可能是 StyledLabel 道具，它只是 @ui-kitten/components 文本的样式组件

import styled from 'styled-components/native';
import {Text} from '@ui-kitten/components';

export const StyledLabel = styled(Text)`
  margin-bottom: 5px;
`;

UI Kitten 的 text.component：

export declare class Text extends React.Component<TextProps> {
    render(): React.ReactElement<RNTextProps>;
}
export {};

Answer 1

在错误信息中，你可以找到问题所在。

类型 'TFunctionResult' 不可分配给类型 'string |号码 | 文本元素 |子元素[] | (字符串 & {}) | （细绳 ＆ ReactElement

TFunctionResult 仅等待字符串

解决方案：您需要始终发送一个字符串并将其称为字符串

<StyledLabel>{t<string>('SelectLanguage:title')}</StyledLabel>

第二个解决方案

<StyledLabel>{`${t('SelectLanguage:title')}`}</StyledLabel>