Create multiple directories in Android

Issue

This is my directory structure on my Android sdcard

 sdcard/alQuranData/Reader1/Surah

Here is my code to make Directories

File SDCardRoot = new File(Environment.getExternalStorageDirectory().toString() + "alQuranData/Reader1/Surah");
                Toast.makeText(getApplicationContext(), SDCardRoot.toString(), Toast.LENGTH_LONG).show();
                if (!SDCardRoot.exists()) {
                    Log.d("DIRECTORY CHECK", "Directory doesnt exist creating directory");
                    SDCardRoot.mkdir();
                }

Now alQuranData is already created in my sdcard root. If i only create Reader1 directory than it works fine, but when is add Reader1/Surah than it did not create.

I also tried mkdirs() but it doesn't work.

Solution

Are you getting any error or exception. Please try to check the return value of mkdirs() method call. ALso try the following code:

File SDCardRoot = new File(Environment.getExternalStorageDirectory().toString() + "/alQuranData/Reader1/Surah");
Toast.makeText(getApplicationContext(), SDCardRoot.toString(), Toast.LENGTH_LONG).show();
if (!SDCardRoot.exists()) {
    Log.d("DIRECTORY CHECK", "Directory doesnt exist creating directory");
    SDCardRoot.mkdirs();
}

Please also check that you have added following permission in manifest file:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

I just tested the following code and it is working on my end:

File SDCardRoot = new File(Environment.getExternalStorageDirectory()
        .toString() + "/alQuranData/Reader1/Surah");
Toast.makeText(getApplicationContext(), SDCardRoot.toString(),
        Toast.LENGTH_LONG).show();
if (!SDCardRoot.exists()) {
    Log.d("DIRECTORY CHECK",
            "Directory doesnt exist creating directory "
                    + Environment.getExternalStorageDirectory()
                            .toString());
    boolean outcome = SDCardRoot.mkdirs();

    Log.d("DIRECTORY CHECK",
            "outcome for " + SDCardRoot.getAbsolutePath() + "     "
                    + outcome);
}

I have added alQaranData folder manually as mentioned in your post and added the permission and it start working at my end. Please check this code.

Answered By - Praful Bhatnagar