android-listview

问题 I am a beginner in Android, I have a ListView which loads data from SQLite database with this code on onCreate : Cursor cursor = dbAdapter.getAllTasks(); String[] fromFields = new String[] {dbAdapter.dbHelper.KEY_TASK}; int[] toView = new int[] {R.id.task}; SimpleCursorAdapter myCursorAdapter; myCursorAdapter = new SimpleCursorAdapter(getBaseContext(), R.layout.task_items, cursor, fromFields, toView, 0); ListView myList = (ListView) findViewById(R.id.taskList); myList.setAdapter

问题 I have a ListView and with a Timer I control the scroll movement of this list by calling smoothScrollToPositionFromTop(position, offset, duration) . The ListView has a listener for OnItemClickListener . If an item is clicked while the smooth scroll is happening, the scroll stops but the onItemClick event is not triggered. In order to do so you need to click again on the item. I want to know how to override this behaviour. I mean, if I click on an item while the smooth scroll is happening ,

问题 I want to know how to add a new text view to appearing ListView in android, ( for example. when I click on some button a new list item is added to the list view )? 回答1: You simply add the object to the container that contains the objects displayed by the listview. Then you tell the listView adapter that a change has occured: public void onClick(View v) { list.add(someObject); ((ArrayAdapter<Object>) listView.getAdapter()).notifyDataSetChanged(); setContentView(R.layout.list_view); 回答2:

问题 I am getting all audio file list from server to list-view by following code. public class ServerFileList extends Activity { URL urlAudio; ListView mListView; ProgressDialog pDialog; private MediaPlayer mp = new MediaPlayer(); private List<String> myList = new ArrayList<String>(); @Override protected void onCreate(Bundle savedInstanceState) { this.requestWindowFeature(Window.FEATURE_NO_TITLE); super.onCreate(savedInstanceState); setContentView(R.layout.serverfilelist); mListView = (ListView)

问题 So, I'm doing this app where you have a ListView listing items that I get from a WebService and a Database. In this list I need a pull to refresh and load more itens when the user is near the end of the current list. Both the pull to refresh and the load more itens when near the end are working. But, the problem is when adding the items, insetead of adding a item to the top or end of the list, it just refreshes the whole list loading the new items and excluding the old ones. So, how can I add

问题 Right now i am using the ArrayList for My ListView and there is a Custom ListView in My Application. See the Image Below: Now i am using this code to display the list and set the value to the listView: public void getOrders(){ try{ // if(employer) // { System.out.println("You are in Employer"); m_orders = new ArrayList<Order>(); payListForEmployer = new String[] {"Tax Code","Pay period Begin","Pay Frequency","Salary/Wage per pay", "Net or Gross Amount","KiwiSaver Member","Employee Deduction",

问题 I'm using a ListView which has: list item click CheckBox click I can save the cursorPosition by using view.setTag(cursor.getPosition()) and I can take necessary action on the checked item but when I scroll down, I see several other CheckBoxes checked(visual only). As a work around I tried setting the view description, saving CheckedBox view ids in list and then iterate to see if CheckBox needs to be shown as checked. But views appear to be reused as I scroll down(same view ids). How can I

问题 I have a seekbar in a listview, it is disabled to stop the user from changing the value whilst scrolling the list. I wish to enable it if the list item is long clicked, allow the user to change it and then disable it again. Any suggestions. I seem unable to access the seekbar from the activity as it is setup inside the ArrayAdapter to display a value from the database I am able to fire a both a click event and a long click event for the list item, as the seekbar is currently disabled. 回答1:

问题 I have a nested json data and multilevel expandablelistview. The JSON data is looks like this : [ { "DivisionID": "2c0e9dc1-a6a7", "DivisionName": "Tyuio", "SubDivision": [ { "SubDivisionID": "70c3ac53-eec6", "SubDivisionName": "FM2222", "Vehicle": [ { "Nopol": "00571564", "LastUpdate": "Oct 10 2010 10:10AM", "LastSpeed": 0, "LastLon": 106.82176 "Location": "KNOWHERE" }, { "Nopol": "352848020936627", "LastUpdate": "Oct 10 2010 10:10AM", "LastSpeed": 0, "LastLon": 10124.228 "Location":

问题 I'm making this custom list view in android using volley, but I'm unable to setup onItemClickListner, here's my code. MainActivity.java package info.androidhive.listviewfeed; import info.androidhive.listviewfeed.adapter.FeedListAdapter; import info.androidhive.listviewfeed.app.AppController; import info.androidhive.listviewfeed.data.FeedItem; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.List; import org.json.JSONArray; import org.json.JSONException