Question

I have a problem thats probably very simple, but i dont quite understand what i am doing wrong. I have a listview, that is loaded as a file browser. This is whats supposed to happen when I click on any of the items.

protected void onListItemClick(ListView l, View v, int position, long id) {

File file = new File(path.get(position));

if (file.isDirectory())
{

if(file.canRead())
getDir(path.get(position));
else
{
new AlertDialog.Builder(this)
.setIcon(R.drawable.ic_launcher)
.setTitle("[" + file.getName() + "] folder can't be read!")
.setPositiveButton("OK", 
  new DialogInterface.OnClickListener() {   
   public void onClick(DialogInterface dialog, int which) {
    // TODO Auto-generated method stub
   }
  }).show();
}

}
else
{
new AlertDialog.Builder(this)

.setIcon(R.drawable.ic_launcher)

.setTitle("[" + file.getName() + "]")

.setPositiveButton("OK", 

  new DialogInterface.OnClickListener() {


   public void onClick(DialogInterface dialog, int which) {

    // TODO Auto-generated method stub

   }

  }).show();

}

}

But when i click on the items, nothing happens. I even checked the logcat to see if theres any activity when i click, but there is absolutely none. Do i need to somehow link this listener to my specific listview? Also if i need to post more information, just let me know. Thank you very much for your help!

NEW PROBLEM

AlertDialog show = new AlertDialog.Builder(this)
.setIcon(R.drawable.ic_launcher)
.setTitle("[" + file.getName() + "] folder can't be read!")
.setPositiveButton("OK", 
  new DialogInterface.OnClickListener() {   
   public void onClick(DialogInterface dialog, int which) {
    // TODO Auto-generated method stub
   }
  }).show();
}

}
else
{
new AlertDialog.Builder(this)
.setIcon(R.drawable.ic_launcher)
.setTitle("[" + file.getName() + "]")
.setPositiveButton("OK", 
  new DialogInterface.OnClickListener() {

   public void onClick(DialogInterface dialog, int which) {

    // TODO Auto-generated method stub

   }

  }).show();

}

On both of these, Im getting an error that the alertDialog is undefined.

Answer 1

Yes, you need to register the ListView with an OnItemClickListener

E.g. like this:

myListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> list,
        View view, int position, long id) {
        // Your code goes here
    }
});