React Native Testing Library: 如何获取组件的 state 值

要获取'TakePicWayPicker'组件的state值，可以使用tree对象的findByType方法来找到该组件实例，然后通过实例的state属性来获取state的值。

首先，使用findByType方法找到TakePicWayPicker组件实例：

const takePicWayPickerInstance = tree.findByType(TakePicWayPicker).instance;

然后，通过takePicWayPickerInstance.state来获取state的值：

const stateValue = takePicWayPickerInstance.state;

完整的代码如下：

import React from 'react';
import { render } from 'react-native-testing-library';
import { LProvider } from 'your-lprovider-package'; // 导入LProvider组件
import TakePicWayPicker from 'your-takepicwaypicker-package'; // 导入TakePicWayPicker组件

// 渲染组件树
const tree = render(
  <LProvider>
    <TakePicWayPicker visible={true} />
  </LProvider>,
);

// 获取TakePicWayPicker组件实例
const takePicWayPickerInstance = tree.findByType(TakePicWayPicker).instance;

// 获取state的值
const stateValue = takePicWayPickerInstance.state;

console.log(stateValue); // 输出state的值