ReactNative图片获取上传踩坑

1. 获取文件 react-native-image-picker

React Native 打开手机的相册和相机

安装模块
yarn add react-native-image-picker
react-native link react-native-image-picker
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使用例子

import ImagePicker from 'react-native-image-picker';
// More info on all the options is below in the API Reference... just some common use cases shown here
const options = {
  title: 'Select Avatar',
  customButtons: [{ name: 'fb', title: 'Choose Photo from Facebook' }],
  storageOptions: {
    skipBackup: true,
    path: 'images',
  },
};

/**
* The first arg is the options object for customization (it can also be null or omitted for default options),
* The second arg is the callback which sends object: response (more info in the API Reference)
*/
ImagePicker.showImagePicker(options, (response) => {
  console.log('Response = ', response);

  if (response.didCancel) {
    console.log('User cancelled image picker');
  } else if (response.error) {
    console.log('ImagePicker Error: ', response.error);
  } else if (response.customButton) {
    console.log('User tapped custom button: ', response.customButton);
  } else {
    const source = { uri: response.uri };

    // You can also display the image using data:
    // const source = { uri: 'data:image/jpeg;base64,' + response.data };

    this.setState({
      avatarSource: source,
    });
    // 进行文件提交
    uploadImage(response)
  }
});
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2.获取文件后上传 rn-fetch-blob

咱们采用rn-fetch-blob模块进行文件上传

安装模块
npm install --save rn-fetch-blob
关联模块
react-native link
安卓权限配置
RNFB_ANDROID_PERMISSIONS=true react-native link
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使用例子

注意ios和android的路径区别
uploadImage = (response) => {
  const PATH = Platform.OS === 'android' ? response.uri : response.uri.replace('file:///', '')
  RNFetchBlob.fetch('POST', '/api/other/file/upload', {
    'Content-Type': 'multipart/form-data',
  }, [
    {
      name: 'file1',
      filename: response.fileName || '未命名文件.jpg',
      type: response.type,
      data: RNFetchBlob.wrap(PATH)
    }
  ]).then((resp) => {
    // ...
    console.log(resp, 'resp')
  }).catch((err) => {
    // ...
    console.log(err, 'err')
  })
}
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