我下载了[react-native-redux-typescript-boilerplate]:https://reactnativeseed.com/。该项目在Android模拟器中运行顺畅。但是,有很多tslint错误,特别是在JSX语法中(即.tsx文件)。一个主要的是https://reactnativeseed.com/
我使用webstrom作为我的代码编辑器,然后我检查了webstrom和项目使用的打字稿的版本。有相同的。
这些是版本:1。打字稿 - 2.6.2 2. react-native - 0.59.6 3. react - 16.2.0 4. react-redux - 5.0.6 5. @ types / react - “^ 16.8.14” 6. @ types / react-native - “^ 0.47.7”
还有什么我需要检查的吗?
我还安装了[“tslint-fix”:“^ 0.1.3”]:https://www.npmjs.com/package/tslint-fix
例如:index.tsx
import * as React from "react";
import { Item, Input, Icon, Form, Toast } from "native-base";
import { Field, reduxForm } from "redux-form";
import Login from "../../stories/screens/Login";
const required = value => (value ? undefined : "Required");
const maxLength = max => value => (value && value.length > max ? `Must be ${max} characters or less` : undefined);
const maxLength15 = maxLength(15);
const minLength = min => value => (value && value.length < min ? `Must be ${min} characters or more` : undefined);
const minLength8 = minLength(8);
const email = value =>
value && !/^[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i.test(value) ? "Invalid email address" : undefined;
const alphaNumeric = value => (value && /[^a-zA-Z0-9 ]/i.test(value) ? "Only alphanumeric characters" : undefined);
export interface Props {
navigation: any;
valid: boolean;
}
export interface State {}
class LoginForm extends React.Component<Props, State> {
textInput: any;
renderInput({ input, meta: { touched, error } }) {
return (
<Item error={error && touched}>
<Icon active name={input.name === "email" ? "person" : "unlock"} />
<Input
ref={c => (this.textInput = c)}
placeholder={input.name === "email" ? "Email" : "Password"}
secureTextEntry={input.name === "password" ? true : false}
{...input}
/>
</Item>
);
}
login() {
if (this.props.valid) {
this.props.navigation.navigate("Drawer");
} else {
Toast.show({
text: "Enter Valid Username & password!",
duration: 2000,
position: "top",
textStyle: { textAlign: "center" },
});
}
}
render() {
const form = (
<Form>
<Field name="email" component={this.renderInput} validate={[email, required]} />
<Field
name="password"
component={this.renderInput}
validate={[alphaNumeric, minLength8, maxLength15, required]}
/>
</Form>
);
return <Login loginForm={form} onLogin={() => this.login()} />;
}
}
const LoginContainer = reduxForm({
form: "login",
})(LoginForm);
export default LoginContainer;
在render()的上述文件中显示了很多错误。其中一些是:1。属性'组件'在类型'typeof React'上不存在。 2. JSX元素类型'Item'不是JSX元素的构造函数。 'Item'类型中缺少属性'render'。还有更多类似的。
我终于解决了这个问题。 @ type / react使用的是typescript版本2.8.1而我的项目使用的是typescript版本2.6.2。所以,我将我的项目的打字稿版本升级到2.8.1,错误消失了。
你忘了导入React
import React, { Component } from 'react';
用class LoginForm extends React.Component<Props, State>
替换class LoginForm extends Component<Props, State>