开发者

ListView setOnItemClickListener not working by adding button

I have a list view with text and button in each row, list view setOnItemClickListener() is not working. is it possible to handle item click and button click events differently(item click should call ActivityA and button click should call ActivityB). Does anyone have a solution

    private ArrayList<String> userIDArr = null;
    private ArrayList<String> userNameArr = null;
    private DatabaseHelper dbHelper = null;
    private ListView userListView=null; 


    public void onCreate(Bundle savedInstanceState) 
        {
          super.onCreate(savedInstanceState);         
          setContentView(R.layout.list_view);         
          dbHelper = new DatabaseHelper(this.getApplicationContext());        
          Map<String,ArrayList<String>> displayMap = dbHelper.getUserListToDisplay();
          userIDArr = displayMap.get("UserID");
          userNameArr = displayMap.get("FirstName1");           


          userListView = (ListView) findViewById(R.id.listView2);
          userListView.setAdapter(new UserListAdapter(this,userIDArr));


          userListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
              @Override
              public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {

                  Toast.makeText(usersListActivity.this,
                            "Item in position " + position + " clicked", Toast.LENGTH_LONG).show();
              }
            });
     }


    public class UserListAdapter extends ArrayAdapter<String>
    {
        Activity context;
        public UserListAdapter(Activity context, ArrayList<String> names) {
            super(context, R.layout.list_item, names);
            this.context = context;
        }
        private class ViewHolder {
            public TextView UserNameAndID;
            public TextView Description;
            public Button  UploadBtn;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            View rowView = convertView;
            if (rowView == null) {
                LayoutInflater inflater = context.getLayoutInflater();
                rowView = inflater.inflate(R.layout.list_item, null, true);
                holder = new ViewHolder();
                holder.UserNameAndID = (TextView) rowView.findViewById(R.id.User_detailsTxt);
                holder.Description = (TextView) rowView.findViewById(R.id.User_status);
                holder.UploadBtn = (Button) rowView.findViewById(R.id.uploadbutton);
                holder.UploadBtn.setOnClickListener(new View.OnClickListener() {  

                        public void onClick(View v) {  
                        Toast.makeText(usersListActivity.this," Button clicked",Toast.LENGTH_SHORT).show();
                        }   
                    }); 
                    rowView.setTag(holder);
            } else {
                holder = (ViewHolder) rowView.getTag();
            }
            String s = userNameArr.get(position)+","+userIDArr.get(position);
            holder.UserNameAndID.setText(s);
      开发者_StackOverflow社区      holder.Description.setText("U r in middle");
            return rowView;
        }
    }
}`


Try setting your buttons (or any other views you want to handle click inside a list item) like this:

android:focusable="false"
android:focusableInTouchMode="false"


Sometimes the List will still not be able to make the Click Listener to pass. And at this case you might have to add one more attribute.

android:descendantFocusability="blocksDescendants" 

And this attribute has to be added to the top most layout of your XML where you have provided the ListView elements.


If you have an active view/focusable view in your list view then it will disable onItemClickListener... you can try to make it unfocusable by adding: android:focusable="false" to any view that is usually focusable.


Batter thing is to add both Listener to the whole of the rowView and to the Button inside Adapter. Something like this.

public class MyAdapter extends BaseAdapter implements View.OnClickListener{

    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {
            View rowView = convertView;
            if(rowView == null)
            {
                    //intialize rowView, and set onclick listener only once.
                    rowView = someIntilizationMehhodOrInflatorMethod();
                    //add listener to the button also and also to the row view
                    rowView.setOnClickListener(this);
            }
            //all your inflation and setting values goes here and at the end,
            //set position as tag to get the correct position, rather buggy one.
            rowView.setTag(String.valueOf(position));


            return rowView;
    }
    public void onClick(View v)
    {
            //now get the tag of View v and convert it to integer.
            int pos = Integer.parseInt(v.getTag().toString());
            Toast.makeText(context,"Item in position " + pos + " clicked",Toast.LENGTH_LONG).show();
    }
}


Try set setClickable(false) for each Button, ImageButton, etc and View like this:

view.setClickable(false);
button.setClickable(false);
imagebutton.setClickable(false);

Also you have to add

android:descendantFocusability="blocksDescendants"

to main(first level) layout


Instead of adding button add ImageView and provide setOnItemClcik listener which would work fine.

public View getView(final int position, View convertView, ViewGroup parent) {
     MyViewHolder mViewHolder;
     if(convertView == null) {
         convertView = inflater.inflate(R.layout.youtubesearchrow, null);
         mViewHolder = new MyViewHolder();
         mViewHolder.alarm = (ImageView)convertView.findViewById(R.id.alarm);
         convertView.setTag(mViewHolder);
     } else {
         mViewHolder = (MyViewHolder) convertView.getTag();
     }

     mViewHolder.tvTitle = detail(convertView, R.id.tvTitle,    
     // mViewHolder.tvDesc  = detail(convertView, R.id.tvDesc,  
     mViewHolder.ivIcon  = detail_image(convertView, R.id.ivIcon,  

     mViewHolder.alarm.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
        // TODO Auto-generated method stub
        }
    });

        return convertView;
}


It's amazing to noticed that how XML changed causes the setonitemclicked in java Worked for me..

android:descendantFocusability="blocksDescendants"
android:focusable="false"
android:focusableInTouchMode="false"


Make the parent clickable attribute to false like this android:clickable="false".

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:clickable="false"
    android:orientation="vertical">

Again facing problem, then for all the child views add this clickable false.


I'm also getting the same error. If in the list layout you have any button to replace it with TextView i.e ImageButton with ImageView. For Reference their is my code:

private Activity activity;
private LayoutInflater inflater;

private List<ItemList> itemListsItems;

private Bookmark_SharedPref pref;

ImageLoader imageLoader = AppController.getInstance().getImageLoader();

public CustomListAdapter_Item(Activity activity,List<ItemList> itemListsItems){
    this.activity=activity;
    this.itemListsItems=itemListsItems;
    pref = new Bookmark_SharedPref(activity);
}


@Override
public int getCount() {
    return itemListsItems.size();
}

@Override
public Object getItem(int position) {
    return itemListsItems.get(position);
}

@Override
public long getItemId(int position) {
    return position;
}

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

    View v = convertView;
    ViewHolder holder;

    if(inflater == null){
        inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }
    if(convertView == null){
        convertView = inflater.inflate(R.layout.item_layout,null);

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


    if(imageLoader == null){
        imageLoader = AppController.getInstance().getImageLoader();
    }




     holder.img = (NetworkImageView)convertView.findViewById(R.id.item_image);
    holder.Title = (TextView)convertView.findViewById(R.id.item_title);
    holder.Cat = (TextView)convertView.findViewById(R.id.item_category);

    holder.id = (TextView)convertView.findViewById(R.id.itemid);

    holder.Desc = (TextView)convertView.findViewById(R.id.item_description);

    holder.book = (ImageView)convertView.findViewById(R.id.bookmark_star);



    // getting blog data or the row
    ItemList il = itemListsItems.get(position);

    //setting image
    holder.img.setImageUrl(il.getImageUrl(), imageLoader);

    // setting title
    holder.Title.setText(il.getTitle());

    //setting category
    holder.Cat.setText(il.getCategory());


    //setting blog id
    holder.id.setText(il.getId());

    //setting description
    holder.Desc.setText(il.getDescription());

    //bookmarking the post
    holder.book.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            itemListsItems.get(position).isFav = !itemListsItems.get(position).isFav;
            ((ImageView)v.findViewById(R.id.bookmark_star)).setImageResource(itemListsItems.get(position).isFav ? R.mipmap.active_star : R.mipmap.inactive_star);

            if(itemListsItems.get(position).isFav){
                String data = Integer.toString(itemListsItems.get(position).id);
                Toast.makeText(v.getContext(),"fav hai "+data,Toast.LENGTH_SHORT).show();
                pref.addPref(data);
            } else {
                String data = Integer.toString(itemListsItems.get(position).id);
                Toast.makeText(v.getContext(),"not fav"+ data,Toast.LENGTH_SHORT).show();
                pref.removePref(data);
            }
            //notifyDataSetChanged();
        }
    });

    ((ImageView)convertView.findViewById(R.id.bookmark_star)).setImageResource(itemListsItems.get(position).isFav ? R.mipmap.active_star : R.mipmap.inactive_star);

    /*
    if(itemListsItems.get(position).isFav){
        String data = Integer.toString(itemListsItems.get(position).id);
        Toast.makeText(convertView.getContext(),"fav hai "+data,Toast.LENGTH_SHORT).show();
        pref.addPref(data);
    } else {
        String data = Integer.toString(itemListsItems.get(position).id);
        //Toast.makeText(convertView.getContext(),"not fav"+ data,Toast.LENGTH_SHORT).show();
        pref.removePref(data);
    }
    */
    return convertView;
}

private static class ViewHolder {
   public TextView Title, Desc,Cat,id;
    ImageView book;
    NetworkImageView img;
}

Also keep in mind to make list layout as android:focussable="true" and for that button/text parameter use android:focussable="false".


Add android:focusable="false" attribute to button and to parent view add android:descendantFocusability="blocksDescendants" attribute like this.

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:descendantFocusability="blocksDescendants">

    <ImageButton
        android:id="@+id/sell_button"
        android:layout_width="wrap_content"
        android:focusable="false"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_sell" />
</RelativeLayout>


I don't know exactly why, but sometimes when you set the adapter, the listeners are cleared. Then, you must call setOnClickListener after setAdapter or setListAdapter.


Remove android:clickable="true" from the internal custome view from the ListView.

0

上一篇:

下一篇:

精彩评论

暂无评论...
验证码 换一张
取 消

最新问答

问答排行榜