java.io.IOException: Read-only file system

Question

File mediaDir = new File(\"media\");
if (!mediaDir.exists()){
    mediaDir.createNewFile();
    mediaDir.mkdir();

}

File f = new File(\"/data/data/com.test.image/f         


        

Answer 1

Guess /data/data is not external storage. You need to have root permission in order to write to the /data directory. Refer Data directory has no read/write permission in Android