找不到图像 React Native (Expo)

Question

Hello fellow programmers,

I am trying to show an image using the UserAvatar component in React-Native (Expo) but I am facing a problem where the link I am getting from the API is not working 404 Not Found , what is the best possible way to avoid this problem. I tried to create a blob using the URL of the image but it was not successful

This is the error message i am getting in the app

Online fetched source is not a supported image at node_modules/react-native-user-avatar/src/helpers.js:41:6 in fetchImage

Here is one of the solutions i have tried:

urlToBlob = (url) => new Promise((resolve, reject) => {
const xhr = new XMLHttpRequest();
xhr.onerror = reject;
xhr.onreadystatechange = () => {
  if (xhr.readyState === 4) {
    resolve(xhr.response);
  }
};
xhr.open('GET', url);
xhr.responseType = 'blob'; // convert type
xhr.send();
})this.urlToBlob(data)
        .then((blob) => {
          console.log(blob);
        });

Answer 1

The approach that i took to solve this problem is very simple.

      axios
        .get(image_url)
        .then((res) => {
          if (res.status === 200) {
            setImageStatus(200);
          }
        })
        .catch((err) => {
          setImageStatus(err.response.status);
        });
    }

When the response status is 200 then the image exists if not fallback to the default image.