Android 是否将本机图像标记defaultSource点响应到内存中的图像数据？

医生说：

defaultSource

A static image to display while loading the image source.

    uri - a string representing the resource identifier for the image, which should be either a local file path or the name of a static image resource (which should be wrapped in the require('./path/to/image.png') function).
    width, height - can be specified if known at build time, in which case these will be used to set the default <Image/> component dimensions.
    scale - used to indicate the scale factor of the image. Defaults to 1.0 if unspecified, meaning that one image pixel equates to one display point / DIP.
    number - Opaque type returned by something like require('./image.jpg').

---

我认为这是不可能的

该属性仅接受两种不同的类型：

由

require（'./image.jpg'）

具有以下形状的对象：

{uri:string，width:number，height:number，scale:number}

。

uri

字段是指向本机端图像的字符串

RNFetchBlob.fetch('GET', 'http://www.example.com/images/img1.png', {
    Authorization : 'Bearer access-token...',
    // more headers  .. 
  })
  // when response status code is 200 
  .then((res) => {
    // the conversion is done in native code 
    let base64Str = res.base64()
    // the following conversions are done in js, it's SYNC 
    let text = res.text()
    let json = res.json()

  })
  // Status code is not 200 
  .catch((errorMessage, statusCode) => {
    // error handling 
  })