How to create a file on Android Internal Storage?

Question

I want to save a file on internal storage into a specific folder. My code is:

File mediaDir = new File("media"); if (!mediaDir.exists()){    mediaDir.createNewFile();    mediaDir.mkdir();  } File f = new File(getLocalPath()); f.createNewFile(); FileOutputStream fos = new FileOutputStream(f); fos.write(data); fos.close(); 

getLocalPath returns /data/data/myPackage/files/media/qmhUZU.jpg but when I want to create the media folder I'm getting the exception "java.io.IOException: Read-only file system". Any ideas how to write my files on internal phone storage in in folder media? Thanks.

Answer 1

You should use ContextWrapper like this:

ContextWrapper cw = new ContextWrapper(context); File directory = cw.getDir("media", Context.MODE_PRIVATE); 

As always, refer to documentation, ContextWrapper has a lot to offer.