How can i setOnClickListener in Adapter And access From Fragment?

Question

I am developing an app like google Play Music! the thing is like that app i have a popupmenu for each row on my gridview. I'm setting grid view adapter from fragment which implements onClickListener. question is: how can i set onclicklistener for each popupmenu and handle onclick event from fragment my popupmenu contains two items : DELETE Add to playList

the reason i want to access onClick from fragment is i want to delete the specific file and update grid view with notifydatasetchanged() !

how can i do this or any suggestion for how can i delete the specific file from adapter n update grid view!

thanks!

this is my GridView Adapter :

 @Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;
    ViewHolder holder;
    item = songs.get(position);

    if (row == null) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        row = inflater.inflate(com.irangrammy.irangrammy.R.layout.mchannel_row, parent, false);
        holder = new ViewHolder();
        holder.thumbnail = (ImageView) row.findViewById(com.irangrammy.irangrammy.R.id.image);
        holder.title = (TextView) row.findViewById(com.irangrammy.irangrammy.R.id.singer);
        holder.mMenu = (ImageView) row.findViewById(R.id.itemOption);

        holder.mMenu.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                PopupMenu popUp = new PopupMenu(context, v);
                MenuInflater inflater = popUp.getMenuInflater();
                inflater.inflate(R.menu.mchannel_popup, popUp.getMenu());
                popUp.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {

                    @Override
                    public boolean onMenuItemClick(MenuItem arg0) {
                        // TODO Auto-generated method stub
                        if(arg0.getItemId()==R.id.delete)
                        {

                        }
                    return true;
                    }
                });
                popUp.show();       
            }
        });
        row.setTag(holder);
    } else {
        holder = (ViewHolder) row.getTag();
    }

@shayanpourvatan i pass fragment to my adapter class , but it doesn't work! can u give me example how to pass fragment to adapter n retrieve it in adapter class? — Mahdi Giveie, Dec 06 '14 at 10:05
pass your fragment to Adapter class , instead of creating new OnClickListener cast your fragment to onClickListener, i'm not sure about that but you can try that — Shayan Pourvatan, Dec 06 '14 at 10:17
@shayanpourvatan i pass fragment which implements onCLickListener by this, n retrieve it in adapter class but get this error when cast it : The method setOnClickListener(View.OnClickListener) in the type View is not applicable for the arguments (Fragment) — Mahdi Giveie, Dec 06 '14 at 10:23
@shayanpourvatan how to cast? i use setOnclickListener(myFragment) but get that error — Mahdi Giveie, Dec 06 '14 at 10:46
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/66319/discussion-between-mahdi-giveie-and-shayan-pourvatan). — Mahdi Giveie, Dec 06 '14 at 11:01

score 2 · Accepted Answer · answered Dec 06 '14 at 11:12

2

you can pass your fragment to Adapter class and cast your fragment to onClickListener, but be sure that you have implement onClickListener on Fragment class.

answered Dec 06 '14 at 11:12

Shayan Pourvatan

11,898
4
42
63

Esmaeel Ibraheem · Answer 2 · 2014-12-06T10:20:37.933

1

I haven't get you! but if I understand you the Solution: Try think of sending broadcast to your fragment, and when the fragment get the broadcast, deal with it as you want. UPDATE: if you want to set listener to the view you can do it:

convertView.setOnClickListener(new View.ClickListener() {
                    @Override
                    public boolean onLongClick(View view) {

                     // Do what you want when the view clicked!
                    }
                });

If this not the answer - send me message with your native language

edited Dec 06 '14 at 10:20

answered Dec 06 '14 at 10:07

Esmaeel Ibraheem

316
2
14

thanks , the question is : how can i set o'clock listener for a view from adapter class n listen for it in onClick method at fragment which extends onClickListener! – Mahdi Giveie Dec 06 '14 at 10:09
Sorry for misunderstanding you. – Esmaeel Ibraheem Dec 06 '14 at 10:29
not a problem , thanks by the way , i solved it by passing fragment – Mahdi Giveie Dec 06 '14 at 11:08

score 1 · Answer 3 · answered Dec 06 '14 at 10:13

first of all your View holder design pattern is wrong it must be like below:

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;
    ViewHolder holder;
    item = songs.get(position);

    if (row == null) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        row = inflater.inflate(com.irangrammy.irangrammy.R.layout.mchannel_row, parent, false);
        holder = new ViewHolder();
        holder.thumbnail = (ImageView) row.findViewById(com.irangrammy.irangrammy.R.id.image);
        holder.title = (TextView) row.findViewById(com.irangrammy.irangrammy.R.id.singer);
        holder.mMenu = (ImageView) row.findViewById(R.id.itemOption);


        row.setTag(holder);
    } else {
        holder = (ViewHolder) row.getTag();
    }

        holder.mMenu.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                PopupMenu popUp = new PopupMenu(context, v);
                MenuInflater inflater = popUp.getMenuInflater();
                inflater.inflate(R.menu.mchannel_popup, popUp.getMenu());
                popUp.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {

                    @Override
                    public boolean onMenuItemClick(MenuItem arg0) {
                        // TODO Auto-generated method stub
                        if(arg0.getItemId()==R.id.delete)
                        {
                           songs.get(position).remove();
                           notifyDataSetChanged();

                        }
                    return true;
                    }
                });
                popUp.show();       
            }
        });
}

How can i setOnClickListener in Adapter And access From Fragment?

3 Answers3