gistfile1.txt

AlertDialog.Builder builder = new AlertDialog.Builder(this);
            AccountManager mgr = AccountManager.get(this);
            Account[] accts = mgr.getAccountsByType("com.google");
            final String[] items = new String[accts.length];
            for(int i = 0; i < accts.length; i++){
            	items[i] = accts[i].name;
            }
    		builder.setTitle("Choose Account To Log Into SilverBullet");
    		builder.setItems(items,  new DialogInterface.OnClickListener() {
    		    public void onClick(DialogInterface dialog, int item) {
    		    	SharedPreferences.Editor editor = settings.edit();
    		    	editor.putString("UserName", items[item]);
    		    	editor.commit();
    		        //Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show();
    		    }
    		});
    		alert = builder.create();
    		alert.show();