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Android Build a Self-Destructing Message Android App Retrieving and Viewing Messages Creating a Custom List Adapter for Messages

babono nurul akbar
babono nurul akbar
5,731 Points
Posted by babono nurul akbar
babono nurul akbar
5,731 Points

username doesn't show on list, only icon

Hi, i'm stuck since i think i already got my code same as ben's, and it just occurred when I added the custom icon, the previous stage it's fine.

here is my InboxFragment.java, i think the problem is in here, but until now i can't find it what's wrong with my code. any help will be appreciated.

<code> public class InboxFragment extends ListFragment{

protected List<ParseObject> mMessages;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_inbox, container, false);
    return rootView;
}

@Override
public void onResume() {
    super.onResume();

    getActivity().setProgressBarIndeterminateVisibility(true);

    ParseQuery<ParseObject> query = new ParseQuery<ParseObject>(ParseConstants.CLASS_MESSAGES);
    query.whereEqualTo(ParseConstants.KEY_RECIPIENT_IDS, ParseUser.getCurrentUser().getObjectId());
    query.addDescendingOrder(ParseConstants.KEY_CREATED_AT);
    query.findInBackground(new FindCallback<ParseObject>() {
        @Override
        public void done(List<ParseObject> messages, ParseException e) {
            getActivity().setProgressBarIndeterminateVisibility(false);

            if(e == null){
                //  We found messages!
                mMessages = messages;

                String[] usernames = new String[mMessages.size()];
                int i = 0;
                for(ParseObject message : mMessages){
                    usernames[i] = message.getString(ParseConstants.KEY_SENDER_NAME);
                    i++;
                }
                MessageAdapter adapter = new MessageAdapter(
                        getListView().getContext(),
                        mMessages);

                setListAdapter(adapter);
            }
        }
    });
}

} </code>

and this is my MessageAdapter.java public class MessageAdapter extends ArrayAdapter<ParseObject>{

protected Context mContext;
protected List<ParseObject> mMessages;
private static final String TAG = "MessageActivity";

public MessageAdapter(Context context, List<ParseObject>messages){
    super(context, R.layout.message_item, messages);
    mContext = context;
    mMessages = messages;
}

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

    if (convertView == null) {
        convertView = LayoutInflater.from(mContext).inflate(R.layout.message_item, null);
        holder = new ViewHolder();
        holder.iconImageView = (ImageView)convertView.findViewById(R.id.messageIcon);
        holder.nameLabel = (TextView)convertView.findViewById(R.id.senderLabel);
        convertView.setTag(holder);
    }
    else{
        holder = (ViewHolder)convertView.getTag();
    }

    ParseObject message = mMessages.get(position);

    if (message.getString(ParseConstants.KEY_FILE_TYPE).equals(ParseConstants.TYPE_IMAGE)) {
        holder.iconImageView.setImageResource(R.drawable.ic_action_picture);
    }
    else{
        holder.iconImageView.setImageResource(R.drawable.ic_action_play_over_video);
    }

    holder.nameLabel.setText(message.getString(message.getString(ParseConstants.KEY_SENDER_NAME)));

    return convertView;
}
private static class ViewHolder {
    ImageView iconImageView;
    TextView nameLabel;
}

}

sorry for my bad english btw

1 Answer

peter backlund
peter backlund
6,910 Points

Hi Nurul,

I think I've spotted your problem. It looks like there's a simple syntax error on the line where you set the holder.nameLabel text (Hint: look for holder.nameLabel.setText() in the getView() method) in you MessageAdapter file. Their are one too many message.getString() calls.

Good luck!

babono nurul akbar
babono nurul akbar
5,731 Points
babono nurul akbar
babono nurul akbar
5,731 Points

wow thank you very much! you're my saviour