How to save file from one folder to another?

Question

I have a listview which displays the files from an external folder (usb). I want to select one of these files and save in an internal folder (Basket).

Here it is when I select an item of this mine listview, i get the position of the item, but from here, do not know how to save this item in the internal folder. I appreciate any help from now on.

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int posicao, long l) {
                valor = (String) listView.getItemAtPosition(posicao);
                File arquivo = (File) listView.getItemAtPosition(posicao);

Answer 1

From what I understand, you can already retrieve the source file. The next step is to only make a copy of the source file.

Use the function below by passing the source and destination files as parameters;

public static void copy(File src, File dst) throws IOException {
try (InputStream in = new FileInputStream(src)) {
    try (OutputStream out = new FileOutputStream(dst)) {
        // Transfer bytes from in to out
        byte[] buf = new byte[1024];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
    }
}
}

You can see more here.