Question

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.

Answer 1

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.