android-listview

Is there any way to get an item of the RecyclerView at a particular position outside the adapter. e.g in ListView we could do: listView.getItem(position); Can we do this with RecyclerView ? and also is the order of provided data list maintained ? You can add your own method to RecyclerView or I would suggest the RecyclerView.Adapter itself. For instance, for ListView, you have: @Override public Object getItem(int position) { return listData.get(position); } You can add the same thing to your RecylcerView.Adapter or access it another way by adding a simple method to your RecylcerView.Adapter :

I m trying to read the contacts in a list with multiple checkboxes , but when i call the sparsebooleanarray ..it just return false for all the list entries,..even for the one s checked ...I looked into this thread Why is ListView.getCheckedItemPositions() not returning correct values? ...But when i implement the addClickHandlerToCheckBox it force stops..this has been bugging me for 4 days..please any help.. public void populateContactList() { // Build adapter with contact entries final Cursor cursor = getContacts(); String[] fields = new String[] { ContactsContract.Data.DISPLAY_NAME };

please refer this image https://www.dropbox.com/s/6zoj9lw10oc07xa/to_dropbox.png what i am doing : i am creating a list_view , in which i am adding custom adapter . what i am using : i am using , listView , customAdapter , menuitem . listView : single listview in whole application customadapters : 3 custom adapters menuitem : 1 How i am implementing : i have data base from which things are fetched properly , and from that database i have entered these values in my listview by filtering that data in 3 types : 1st adapter_type is entered by default ( in onCreate ) . adapter = new Adapter

I'm working on a ListView that uses a custom ResourceCursorAdapter to display a TextView and a CheckBox. The TextView and CheckBox get their state from the Cursor. I've been having a few problems with it, the most recent being that when I scroll some of the rows have text from old TextViews and some CheckBoxes are selected when they shouldn't be. I've added a log line to see what's going on and that's just confused me more. @Override public void bindView(View v, Context ctx, Cursor c) { ViewHolder holder = (ViewHolder)v.getTag(); holder.tv.setText(holder.tvText); holder.cb.setChecked(holder

I've got the below screen that contains some images (6 per visible page). Scrolling up and down seems quite laggy to me. It's like it's rendering the images again. Scrolling back up seems worse than scrolling down. Anyone know how to increase performance in such an area to create a nice smooth scroll? Update : The images and text is all retrieved from my SQLite database. The list is created using SimpleCursorAdapter. private class HistoryViewBinder implements SimpleCursorAdapter.ViewBinder { //private int wallpaperNumberIndex; private int timeIndex; private int categoryIndex; private int

I've a custom adapter implemented for my ListView . How do I extract objects from a particular list item. Here's how my custom adapter looks: MyCustomAdapter.java public class MyCustomAdapter extends ArrayAdapter<DashboardBean> { Context context; int layoutResourceId; DashboardBean currentMRB; Vector<DashboardBean> data; public MyCustomAdapter(Context context, int layoutResourceId, Vector<DashboardBean> data) { super(context,layoutResourceId,data); this.layoutResourceId = layoutResourceId; this.context=context; this.data = data; } @Override public View getView(int position, View convertView,

Background Note: I've been using listViews for ages, so I'm very familiar with how to work with adapters, ViewHolders, etc... so this issue doesn't make sense for me. This time I got into a very weird behavior that for some reason occur only on 2 devices: LG G2, with Android 4.2.2 Xperia J, with Android 4.1.2 The problem The listView has its own BaseAdapter, which on some events I update its items collection within it (on the UI thread) , and call notifyDatasetChanged (). The problem is that on the problematic devices, calling this function calls getView only on some of the visible rows of the

I have a custom ListView item as follows: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" android:gravity="center_vertical" android:paddingTop="2dp" android:paddingBottom="2dp" android:background="@android:color/transparent"> <ImageView android:id="@+id/profile_picture" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/mr_unknown" android:contentDescription="@string/profile_picture