CODEWITHSUNDEEP
androiddirectoryandroid-sdcard
user5367527
user5367527

Reputation:

How to Create a folder in external sdcard in Android 4.4.2(Kitkat) API level 19

I try a lot to create a folder in SD card in android 4.4.2 version. i try the following code 

 String dirName="Test";
   File file = new File(Environment.getExternalStorageDirectory(), dirName);
        boolean status = file.mkdir();
                    if (status)
                        Toast.makeText(MainActivity.this,
                                "Directory created successfully", Toast.LENGTH_SHORT)
                                .show();
                        else
                            Toast.makeText(MainActivity.this, "Directory create failed",
                                    Toast.LENGTH_SHORT).show();

but it creates a folder in internal storage.

and I try another code is

  String path=System.getenv("SECONDARY_STORAGE");
                File file=new File(path +"/Test123");
                file.mkdir();

it creates a folder in External SDCARD in android 4.1 but not in android 4.4.2

So how can i create a folder in External sdcard in android 4.4.2?? If anyone know please help me..

Thanks in advance

Upvotes: 1

Views: 1215

Answers (2)

Blackbelt
Blackbelt

Reputation: 157457

The documentation states that

Applications should not directly use this top-level directory, in order to avoid polluting the user's root namespace. Any files that are private to the application should be placed in a directory returned by Context.getExternalFilesDir, which the system will take care of deleting if the application is uninstalled.

where with top-level directory they mean the return value of Enviroment.getExternalStorageDirectory()

Using getExternalFilesDir you will have

 File file = new File (getExternalFilesDir(null), dirName);
 if (!file.exists()) {
   boolean status = file.mkdir();
   if (status) {
        Toast.makeText(MainActivity.this, "Directory created successfully", Toast.LENGTH_SHORT).show();
   } else {
        Toast.makeText(MainActivity.this, "Directory create failed", Toast.LENGTH_SHORT).show();
   }
 }

also you should be aware of the fact that mkdir() returns false if the directory already exists

Upvotes: 2

Aloha
Aloha

Reputation: 914

This should be self-explanatory.

String folderName = "NewFolder";

        File file = new File(Environment.getExternalStorageDirectory(),
                folderName);
        if (!file.exists()) {
            file.mkdirs();
        }

Make sure you have added WRITE_EXTERNAL_STORAGE permission in your manifest.

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

Credits to Dhaval

Upvotes: 1

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