create folder with app icon instead of default folder icon

Question

I want to add my app Icon to created folder instead of default folder icon.

I know i can create folder with following code.

String extr = Environment.getExternalStorageDirectory().toString();
File mFolder = new File(extr + "/My Application/Downloads");
if (!mFolder.exists()) {
    mFolder.mkdirs();
}

By doing this, i'm getting following result.

but what i want is..

I have searched a lot, but no luck. can anyone help me out?

Thank you.

Answer 1

Directories do not have icons, and so whatever app or tool your screenshot is from is adding that. You would have to ask the developers of that app or tool what algorithm they are using to determine the icon to show.