android-listview

问题 So after I set the filter on my listview: //Log adapter count before filter listView.getFilter().filter(searchStr) //Log adapter count after filter What I'm trying to achieve is to get the count of the result of that filtering. Like if before there are 10 items, then I apply the filter, so now only 5 items will appear, I want to get that count "5". I've tried checking the adapter count before and after the filter with no luck. They're displaying same count (I'm using a

问题 I'm relatively new to Android development and development overall. I'm having trouble grasping the syntax/process for ViewPager. I have several ListViews that I want to implement into a ViewPager. I've got the compatibility pack loaded and everything. But I haven't seen any complete examples of how to do this. I learn best by looking at examples. If someone can post an examples of any projects you've implemented this sort of thing in, please let me know. The issue is that I get a Null Pointer

问题 I have been trying to find a working example of "Parsing Youtube Gdata JSON" in Android to populate a listview. I have been reading this question, and I almost have it working except for 4 errors.. item_title item_subtitle setListAdapter getListView import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.view.View; import android.widget.AdapterView; import android.widget.ListAdapter; import android.widget.ListView; import

问题 I have a listView (vertical) and every list item has a horizontal list view (horizontal). But the problem is when i scroll the horizontal scrollview in the row the vertical list is also calling getView()... So, there is a huge performance hit.. So , can any one tell me a better solution to it .. public class GridViewAdapter extends BaseAdapter { List<List<Hotel>> gridDatasource; Context mContext; public GridViewAdapter(List<List<Hotel>> gridDatasource, Context context) { this.gridDatasource =

问题 I want to sort items of the ListView by product name. I have a vector called "data" which is a type of class. The class I have is: public static class RowData implements Comparable<RowData>{ public String mProductName; protected int mId; protected int mOnHand; protected double mPrice; protected boolean mIsColleaction; protected boolean mIsPrePack; RowData(int id ,String productName,int onhand,double price,boolean IsColleaction, boolean IsPrePack) { mId= id; mProductName= productName; mOnHand

问题 I would like to implement a ListView with fastscroll and albhabet indexer as in the contacts application. I'm using a SimpleAdapter to populate the ListView. As seen from the image, by selecting a letter from the alphabet indexer at the right, the listView selection goes to the corresponding ListItem. How to accomplish this? Please help. 回答1: As I can't see your posted image, but I think Here is the way to implement Section Indexing in Android as iPhone has, You should also refer

问题 How can I create a ListView with fixed header and footer? I don't want the header/footer to scroll with the items in the ListView . Is it possible that the header/footer is floating over the ListView so that the header/footer dont need to have a straight bottom/top background and the ListView items scrolls below the background of the header/footer view, but still show the first element of the list? 回答1: I solved it by using @blackbelt suggestion and a small ImageView with the source image

问题 In each ListView item I have EditText . When I set android:focusable="false" for EditText then onItemClick on the ListView item is working, but EditText doesn't get cursor when I click inside. If I'll set android:focusable="true" for EditText , then EditText is focusable, but onItemClick for the ListView doesn't work when I click on it. How to separate onItemClick and focusable EditText in this item? 回答1: Thanks @user370305 for the idea with OnTouchListener. Now it is working for me by using

问题 How do you know if your ListView has enough number of items so that it can scroll? For instance, If I have 5 items on my ListView all of it will be displayed on a single screen. But if I have 7 or more, my ListView begins to scroll. How do I know if my List can scroll programmatically? 回答1: Diegosan's answer cannot differentiate when the last item is partially visible on the screen. Here is a solution to that problem. First, the ListView must be rendered on the screen before we can check if

问题 I want to make an element that is shown in the middle of ScrollView (or ListView ) at the first and then gets stuck in the header of screen when it’s scrolled. It’s a prototype implementation in CSS+JS: http://jsfiddle.net/minhee/aPcv4/embedded/result/. At first glance I would make ScrollView to include ListView , but the official docs says: You should never use a ScrollView with a ListView, because ListView takes care of its own vertical scrolling. Most importantly, doing this defeats all of