how to get the the multiple checkbox values using custom adapter in android

Hi In the below code I am display textview with checkboxes.Now When I am selecting single value it's returning the name of the textview same as second textview name also.

Now I want to return at a time multiple textview names based on checkbox selected values. Eg:suppose two users I am selecting user1,user2 these two I got selected I want to return these two names in single variable.

java

checkBoxState = new boolean[friend.length];
            holder.check1.setChecked(checkBoxState[position]);
            holder.check1.setOnCheckedChangeListener(new OnCheckedChangeListener(){

                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    checkBoxState[position]=isChecked;

                    if(isChecked){

                    check=friend[position].userName;            
                    }
                                        Toast.makeText(getApplicationContext(),friend[position].userName+"checked", Toast.LENGTH_LONG).show();
                }
            });