RNFetchBlob.fs.exists crashes if the file not exist in the gallery (content://) on android

Hi

I’ve an issue about the RNFetchBlob.fs.exists() method.

Context :

• I’ve an app that record some videos
• this app stores recorded video using the CameraRoll component.
• Videos are stored in the gallery (content://media/external/video/media/296)

I’ve tested two things :

• The video exist in the gallery
• The video does not exist (remove manually by the user)

The code :

async componentDidMount() {
    const {scene} = this.props;
// scene.film is the uri like content://media/external/video/media/296 (android only at the moment)
    if (scene.film) {
      RNFetchBlob.fs.exists(scene.film)
        .then((exist) => {
          console.log(`file ${exist ? '' : 'not'} exists`)
        })
        .catch((err) => { console.log(err) });

      this.setState({jsx: this.renderFilm(scene)});
    } else {
      this.setState({jsx: this.renderImage()});
    }
  }

Version:

"react-native": "0.56.0",
"rn-fetch-blob": "^0.10.12"

The issue

If the file exist, everything works and console log print :

If the file has been removed the app crashes and shutdown. This behaviour have been tested on android 7.0, API 24 the device is : SM-T580

[jonathangreco]

@zibs Thanks I still have this issue now and I just use an ugly workaround like this :

// if it's not exist, catch method will know about it :)
  await RNFS.stat(item.uri).then((stat) => {
        // Yolooooooooooooo
      })
        .catch(() => {
          this.doSomthingfalse);
        });

Well like you see here even RNFS can’t make a proper exist method (it’s not handle the content:// return always false)

[dbilgin]

Using stat() fails to return the correct value for content: files on android. @tmaly1980’s fix seems like it would fix this issue.