How to create a file in an SDCARD directory

Question

I want to create a file(not created) in a directory(not created) in the SDCARD. How doing it ?

Thank you.

Answer 1

Try the following example:

if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){
    //handle case of no SDCARD present
} else {
    String dir = Environment.getExternalStorageDirectory()+File.separator+"myDirectory";
    //create folder
    File folder = new File(dir); //folder name
    folder.mkdirs();

    //create file
    File file = new File(dir, "filename.extension");
}

Don't forget to add the permission to your AndroidManifest:

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

Answer 2

The problem is that mkdirs() is called on a File object containing the whole path up to the actual file. It should be called on a File object containing the Path (the directory) and only that. Then you should use another File object to create the actual file.

Answer 3

You should also have to add permission to write to external media. Add following line in the application manifest file, somewhere between <manifest> tags, but not inside <application> tag:

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