Question

I used a tutorial to download a zip into a subdirectory of my application’s internal storage. I wrote the zip to /data/data/my.package.name/files/mySubDirectory/the.zip.

But, when I check to see whether the zip exists, it doesn’t:

    String fileDirectory = this.getFilesDir().getAbsolutePath() + "/mySubDirectory/the.zip";
    File file = new File(fileDirectory);
    if(file.exists()) {
        Log.e(this.class.getName(), "file exists");
    } else {
        Log.e(this.class.getName(), "file doesn't exist");
    }

I verified that fileDirectory is the same path as the File outFile for the FileOutputStream.

What could be the problem?

Answer 1

Using this SO question, I created a subdirectory using this example:

File mydir = context.getDir("mydir", Context.MODE_PRIVATE); //Creating an internal dir;
File fileWithinMyDir = new File(mydir, "myfile"); //Getting a file within the dir.
FileOutputStream out = new FileOutputStream(fileWithinMyDir); //Use the stream as usual to write into the file

The problem is that I didn’t expect the subdirectory to be prepended with “app_”, so I was looking for the zip in the wrong place.