Download is not working. It fetches link after checking logcat but adds API address after fetching download URL. If API link is removed, the download should work. I would suggest to use YouTube URL extractor and downloader to download music: https://github.com/HaarigerHarald/android-youtubeExtractor
It has easy implementation, also notification needs to be fixed, there are no notification as channel is not created. So there is no music playback control from notification.
Download is not working. It fetches link after checking logcat but adds API address after fetching download URL. If API link is removed, the download should work. I would suggest to use YouTube URL extractor and downloader to download music: https://github.com/HaarigerHarald/android-youtubeExtractor
It has easy implementation, also notification needs to be fixed, there are no notification as channel is not created. So there is no music playback control from notification.