Get files from specific folder

[ajoykarmakar]

I have a music application where the user can download the music file also. So when I fetched the music files I got all the files that the user store in his storage device but I want only those mp3 that user downloaded and stored in the "download" folder. How can I achieve this feature?

[Drazail]

@ajoykarmakar i guess you could use some fs module ( like RNFetchBlob ) to retrieve URIs you want, then use this packages to extract the metadata.

however, in my opinion, the more sensible approach would be to store the metadata and path/URL upon fetching them from the back-end( in some local database like sqLite or realm ).

[ajoykarmakar]

Yupp, I have used this plugin to download the songs and stored in the storage but how can I get only from a specific folder where the user stored the songs. my current code is -

  MusicFiles.getAll({               
                    duration: true, //default : true       
                    fields: ['title', 'artwork', 'duration', 'artist', 'genre', 'lyrics', 'albumTitle']
                }).then(tracks => {
                    this.state.loading = false
                    this.setState({
                        offlineresults: tracks,
                        loading: false
                    })
                }).catch(error => {
                    // console.log(error)
                })

I got all songs from this code.

[Drazail]

you could use RNAndroidAudioStore.getSongByPath ( see here) to retrieve the metadata from a path, however this wont work on iOS.

---

to be honest though, for your use case, I truly think it would be a better solution to just use a local database instead of this package.

I assume you fetch the metadata and the urls from a back-end service at some point, store them in a database. you can also add a path field, set it to null, and insert the the download path into that field in the callback on the download function of RNFetchBlob.

---

It is possible implement a function to get songs from a specific path, something like this should work on the android native side:

private Cursor cursor;
private int columnIndex;

String[] projection = {MediaStore.Audio.Media._ID};
cursor = managedQuery( MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
        projection, 
        MediaStore.Audio.Media.DATA + " like ? ",
        new String[] {"%PATH_TO_FOLDER_CONTAINING_SONGS%"},  
        null);
columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media._ID);

however, I don't think this is a reasonable solution for your use case either.

[ajoykarmakar]

Yeah, I can do it with local storage but if the user somehow deletes the mp3 file from the file manager then the app still shows the file but didn't able to play the music. I think that's wrong and a bad UX and thank you for your coding support but that's a java code, How to implement this code, I have no idea can you help me out, please?

[Drazail]

honestly this is how we handled this issue in our app:

• store all the data in SQLite, Songs table includes PATH ( defaults to NULL) and URL
• when the user decides to download a song, update the PATH
• whenever a song is going to be played, first scan the PATH attribute, if the file exists, then the song will be played locally from the path, otherwise fall back to the URI and fetch the song from the back-end ( and inform the user that the song is being streamed over the network via snackbar).

we use this package only to discover songs, artists, albums, playlists, ... which are not viewed, played, downloaded or created by our own app.

* I will try to implement a getSongsByPath as soon as I can.

[ajoykarmakar]

It will be really helpful if you are able to implement these features and my app run only on the android version so if you help me only on the android version still it will completely fine.

[Drazail]

@ajoykarmakar this function is now implemented in v3dev branch of my fork.

https://github.com/Drazail/react-native-get-music-files/tree/v3dev#getsongbypaths

[iasreact1]

@Drazail I implemented react-native-get-music-files with my react-native-0.70.6 and as my react version higher not going for manual installation and when i build the project it gives me the error for android.support.annotaion which is due to androidx, and i changed it to androidx and the project will build successfully and now when i use the code MusicFiles.getAll({ blured: false, // works only when 'cover' is set to true artist: true, duration: true, //default : true cover: false, //default : true, genre: true, title: true, cover: true, minimumSongDuration: 10000, // get songs bigger than 10000 miliseconds duration, batchNumber : 1, delay: 1000 }) .then(resp => { // console.log("resd", resp); }) .catch(er => alert(JSON.stringify(error))); and during each time i call that the app get crashed without any error message , i cannot understand what to do to get my device music files , please help @Drazail , @ajoykarmakar

[Drazail]

@iasreact1

Its been a while since I worked on this. however, if you are interested, you can take a look at the source code of my repo (which is practically the android side of this package) and let me know if you need any help with that.

[13627491210]

@ajoykarmakar该功能现已在我的 fork 的 v3dev 分支中实现。

hello ，i used it ,but failed 。

[13627491210]

@ajoykarmakar该功能现已在fork的v3dev分支中实现。

你好，我用过了，但是失败了。 this is my code 。
import GetMusicFiles, { Constants, CoverImage } from "react-native-get-music-files-v3dev-test"; GetMusicFiles.getSongByPath({ cover: true, coverFolder: "pathToCoverFolder", path: "/storage/emulated/0/Download/" }) .then(f => { console.log(f); }) .catch(er => console.log(e)); };
i get a error 。 [TypeError: undefined is not a function]

[13627491210]

@ajoykarmakar该功能现已在fork的v3dev分支中实现。

你好，我用过了，但是失败了。 this is my code 。 import GetMusicFiles, { Constants, CoverImage } from "react-native-get-music-files-v3dev-test"; GetMusicFiles.getSongByPath({ cover: true, coverFolder: "pathToCoverFolder", path: "/storage/emulated/0/Download/" }) .then(f => { console.log(f); }) .catch(er => console.log(e)); }; i get a error 。 [TypeError: undefined is not a function]

@Drazail please help me ， GetMusicFiles.getSongs({ ... }) is OK, but GetMusicFiles.getSongByPaths and GetMusicFiles.getSongByPath is error 。