How to add multiple buttons on a single AlertDialog

A simple solution without xml:

AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setTitle("Title");
builder.setItems(new CharSequence[]
        {"button 1", "button 2", "button 3", "button 4"},
        new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                // The 'which' argument contains the index position
                // of the selected item
                switch (which) {
                    case 0:
                        Toast.makeText(context, "clicked 1", Toast.LENGTH_SHORT).show();
                        break;
                    case 1:
                        Toast.makeText(context, "clicked 2", Toast.LENGTH_SHORT).show();
                        break;
                    case 2:
                        Toast.makeText(context, "clicked 3", Toast.LENGTH_SHORT).show();
                        break;
                    case 3:
                        Toast.makeText(context, "clicked 4", Toast.LENGTH_SHORT).show();
                        break;
                }
            }
        });
builder.create().show();