Question

I’m writting an app, which lets user to input URL then select the location to put the downloaded file. But I’m get stuck in the 2nd step.
All I want to do is display the location like this:

And return the path to location.
Anyone has the solution? Thanks in advance!
PS: Display the external storage.

Answer 1

This is how I do, and it works for me:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_tree_view);

    File dir = new File("/sdcard");
    ArrayList<String> folders = new ArrayList<String>();
    final File[] fileList = dir.listFiles();

    if (fileList == null){
        Toast msg = Toast.makeText(this, "No files", 3000);
        msg.show();
    }else{
        for (File f:fileList){
            if (f.isDirectory()){
                folders.add(f.getName());
            }
        }
        final ListView lvFolder = (ListView)findViewById(R.id.lvTree);
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_selectable_list_item, folders);
        lvFolder.setAdapter(adapter);
        lvFolder.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View v,
                    int position, long id) {
                // TODO Auto-generated method stub
                Object o = lvFolder.getItemAtPosition(position);
              String fullObject = (String)o;
              Toast.makeText(getApplicationContext(), "You have chosen: " + " " + fullObject.toString(), Toast.LENGTH_LONG).show();
            }
        });
    }

}