android-listview

问题 I have a problem. I'm attempting to change an icon in my listview after it has been clicked. It works correctly although are not modified only the clicked icons but also those who are not displayed. For example if I click the icon in the first item of the listview, also the fifth icon changes. This behaviour is repeated for all the following items (every five items of the listview). This is my getView method: public class AlphabeticalAdapter extends ArrayAdapter<String> { int layoutResourceId

问题 I have a class that extends ListFragment, and it overrides the OnListItemClick method. I am also doing this in another ListFragment the same way (and the method gets called). I am wondering why the method does not get called when I click on the list item? Here is the code: package org.doraz.fdboard.activity; import java.sql.SQLException; import java.util.Collection; import org.doraz.fdboard.FantasyDraftBoardApplication; import org.doraz.fdboard.R; import org.doraz.fdboard.activity

问题 I have a custom ViewSwitcher in which I implemented touch events so I am able to scroll through screens using the touchscreen. My layout hierarchy looks like this: <ViewSwitcher> <LinearLayout> <ListView /> </LinearLayout> <LinearLayout> <ListView /> </LinearLayout> </ViewSwitcher> Now, the problem is that the touch events are being consumed by the ListViews and I am not able to switch the views. It works fine when I don't have the ListViews . I need to be able to scroll through the views and

问题 Taking inspiration from Android Market, i have implemented a Endless List which loads more data from the server when we reach the end of the List. Now, i need to implement the progressbar & "Loading.." text as shown Sample code to take inspiration from would be great. 回答1: Here is a solution that also makes it easy to show a loading view in the end of the ListView while it's loading. You can see the classes here: https://github.com/CyberEagle/OpenProjects/blob/master/android-projects/widgets

问题 Taking inspiration from Android Market, i have implemented a Endless List which loads more data from the server when we reach the end of the List. Now, i need to implement the progressbar & "Loading.." text as shown Sample code to take inspiration from would be great. 回答1: Here is a solution that also makes it easy to show a loading view in the end of the ListView while it's loading. You can see the classes here: https://github.com/CyberEagle/OpenProjects/blob/master/android-projects/widgets

问题 I have the following requirement: At first, data for page no: 2 is fetched from the server & the items are populated in a ListView. Considering that both the prev page & next page are available in a scenario, the following code has been added: if(prevPageNo > 0){ mListViewActual.setOnScrollListener(this); } if(nextPageNo > 0){ mListViewActual.setOnScrollListener(this); } What conditions should I put to detect scroll up & scroll down on the following methods: void onScroll(AbsListView view,

问题 Can somebody please give me an example code of removing all ListView items and replacing with new items? I tried replacing the adapter items without success. My code is populateList(){ results //populated arraylist with strings ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, results); listview.setAdapter(adapter); adapter.notifyDataSetChanged(); listview.setOnItemClickListener(this); } // now populating list again repopulateList(){ results1 /

问题 I want to add OnLongClickListener on my list view. Whenever the user long press the item in list some action should be performed, But my code does not catch this listener. Please let me know where I am going wrong. The similar code works for setOnItemClickListener very well. Here is the code : listView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() { public boolean onItemLongClick(AdapterView<?> arg0, View v, int index, long arg3) { // TODO Auto-generated method stub Log

问题 I have a ListView with several Views in each row. I change the background of one of these Views when the row is clicked. As I scroll through the ListView, it seems that this highlighted View is reused in other rows, thus I have a highlighted View in rows that I do not want it in. Could someone explain why this happens and a possible fix? Thanks 回答1: Are you using baseAdapter to inflate your ListView? If yes, then it may be a case of convertView and position changeing everytime you scroll. 来源：

问题 I have a ListView with several Views in each row. I change the background of one of these Views when the row is clicked. As I scroll through the ListView, it seems that this highlighted View is reused in other rows, thus I have a highlighted View in rows that I do not want it in. Could someone explain why this happens and a possible fix? Thanks 回答1: Are you using baseAdapter to inflate your ListView? If yes, then it may be a case of convertView and position changeing everytime you scroll. 来源：