Android Contacts On Listview

I want to add the selected contacts on a listview in my application .I am getting selected code using following code but it is not showing selected contacts on listview .Please hel

Solution 1:

Try making following changes to your current adapter class:

publicclassContactsAdapterextendsBaseAdapter {

    ArrayList<ContactDetails> contactDetails = newArrayList<ContactDetails>();
    Context c;    
    LayoutInflater mInflater;

    publicContactsAdapter(Context context,ArrayList<ContactDetails> ContactDetails) {

        contactDetails = ContactDetails;        
        c=context;
        mInflater = LayoutInflater.from(context);  
        Log.v("constructor", contactDetails.size()+"");
    }

    @OverridepublicintgetCount() {

        Log.v("getCount", "");
        return contactDetails.size();
    }
    @Overridepublic Object getItem(int position) {

        Log.v("getItem", position+" ");
        return contactDetails.get(position);
    }
    @OverridepubliclonggetItemId(int position) {

        Log.v("getItemId", position+"");
        return position;
    }
    @Overridepublic View getView(int position, View convertView,ViewGroup parent) {

        final ViewHolder holder;
        Log.v("in :","get View");        

        if (convertView == null)
        {            
            convertView = mInflater.inflate(R.layout.contacts_listitem, null);
            holder = newViewHolder();

            holder.text=(TextView)convertView.findViewById(R.id.text);
            convertView.setTag(holder);

            Log.v("TAG", "convert view not null");
        } 
        else       
            holder=(ViewHolder)convertView.getTag();

        textview.setText(contactDetails.get(position).Name);

        return convertView;
    }
    staticclassViewHolder
    {
        TextView text;            
    }
}

and also include layout file named contacts_listitem.xml as shown below in my answer.

Now you need to change these lines in your main activity too:

...
contactsAdapter = new ContactsAdapter(Contacts.this,ContactList);
EmergencyContactList.setAdapter(contactsAdapter);
...

Here,also you have not set adapter to your listview so it is not showing you anything there.you missed the line EmergencyContactList.setAdapter(contactsAdapter);. please do as above and let me know the result.

EDIT :

You can also try using custom ArrayAdapter class like:

ContactsAdapter.class:

publicclassContactsAdapterextendsArrayAdapter<String> {

    String[] array;
    LayoutInflater mInflater;

    public ContactsAdapter(Context context, int textViewResourceId,
            String[] objects)
    {
        super(context, textViewResourceId, objects);
        array=objects;
        mInflater = LayoutInflater.from(context);               
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {       
        final ViewHolder holder;

        if(convertView==null)
        {
                 convertView = mInflater.inflate(R.layout.contacts_listitem, null);
                 holder = new ViewHolder();

                 holder.text=(TextView)convertView.findViewById(R.id.text);
                 convertView.setTag(holder);
        }
        else
                holder=(ViewHolder)convertView.getTag();

        holder.text.setText(array[position]);

        return convertView;
    }

    staticclassViewHolder{
        TextView text;            
    }
}

Create a layout file contacts_listitem.xml:

<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:orientation="horizontal"android:layout_width="fill_parent"android:layout_height="fill_parent"><TextViewandroid:layout_width="wrap_content"android:layout_height="fill_parent"android:id="@+id/text"android:textSize="18dip"android:padding="5dip"android:textColor="#90000000"android:layout_weight="0.9"
        /></LinearLayout>

Now you need to use ContactsAdapter's object in your main activity like:

...
ContactsAdapter aa=newContactsAdapter(context,R.layout.contacts_listitem, newString[]{"contact1","contact2","contact3","contacts4"});
listView.setAdapter(aa);
...

Here,you can build your String array in onActivityResult() accordingly.(I didn't get what you have done in your adapter class to show contact details so i just put strings from String array in adapter.You have to code as per your need.)

EDIT :

Change these lines of code in your app:

public String[] getContactsArray(ArrayList<ContactDetails> List)
{    
    ContactsArray = new String[List.size()];
    for(int i=0;i<=List.size()-1;i++)
    {           
        ContactsArray[i] = List.get(i).Name +"\n"+ List.get(i).Number;
    }   
    return ContactsArray;
}

Here,you don't need to check if the list is empty or not,because you already do so before calling this function.