转载：MediaPlayer cant play audio files from program data folder?

6 down vote

i had the same issues... whenever i used setDataSource with filepaths, it would not work; kept getting IOException.

changing my code to use setDataSource(FileDescriptor) does work... and with this i don't have to copy the files to SDCard or anything like that.

So, with a simple File object, create a new FileInputStream and pass the actual file descriptor as data source as in:

setDataSource((new FileInputStream(myFileInstance)).getFD());

creating an input stream pulls the file data into memory and thereby addresses /data/data access violations.