android-arrayadapter

问题 I have one Array + one Listview + one Listview items layout Xml + one Class extended from ArrayAdapter , Now i want to show my Array Items in Customized ListView By using Customized ArrayAdapter without any using of another class or method ! I now how i can use CursorAdapter But i can't work with ArrayAdapter 回答1: You can try to use BaseAdapter. Adapter class: public class YourAdapter extends BaseAdapter { private Context mContext; private String yourArray[]; public YourAdapter (Context

问题 In my android app, i m trying show a list through list adapter and the data comes from SQLite db. However the list items are not showing up , though everything is fine , i think! . This is my code for showing list @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.store_list_activity); float storeId = 1; //Storedb is my data adapter class of SQLite StoreDb storelist = new StoreDb(this); storelist.open(); ArrayList

问题 In my android app, i m trying show a list through list adapter and the data comes from SQLite db. However the list items are not showing up , though everything is fine , i think! . This is my code for showing list @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.store_list_activity); float storeId = 1; //Storedb is my data adapter class of SQLite StoreDb storelist = new StoreDb(this); storelist.open(); ArrayList

问题 I've come to a problem with the Android GridView. I already tried various solutions from Stackoverflow but none of them actually worked. I'm populating a GridView with the help of an ArrayAdapter. The Adapter inflates a layout containing only an image and a checkbox. I'm using that "convertView"-thing in order to prevent flickering when the images get added (nearly 500 images are getting added to the GridView). The Problem : When I check a checkbox and scroll, the checked-state disappears.

问题 I am making a custom arrayAdapter for my listview, but a simple thing like my super constructor is messing me up! private ArrayAdapter<ScheduleTime> timeHold; //make proper constructor, see use ticket types public TimeTableAdapter(Context context, int textViewResourceId, ArrayAdapter<ScheduleTime> timesTable) { super(context, textViewResourceId, timesTable); this.timeHold = timesTable; } I get the error on the super line: super(context, textViewResourceId, timesTable); The constructor

问题 In this Stackoverflow answer, it is indicated that filtering can be accomplished in a ListView without overriding the getFilter method of the ArrayAdapter and instead implementing toString in the POJO class. I have tried implementing it, but the filtering is not working correctly. Although the ListView does filter, it doesn't show the correct items in the array. So, for example, if the filter matches a single row in the array then one item is shown in the ListView , but it is the wrong item

问题 In this Stackoverflow answer, it is indicated that filtering can be accomplished in a ListView without overriding the getFilter method of the ArrayAdapter and instead implementing toString in the POJO class. I have tried implementing it, but the filtering is not working correctly. Although the ListView does filter, it doesn't show the correct items in the array. So, for example, if the filter matches a single row in the array then one item is shown in the ListView , but it is the wrong item

问题 I am quite new to Android. In the following class the data is retrieved from the database and displayed in a ListView which has two different layouts. Though it works as expected, the problem is that scrolling is not smooth because the textviews are assigned again and again. I couldn't figure out how to have them assigned only once. Please somebody help me out with this. Thanks in advance. My apology for the code, I know it looks bad. public class FragmentVerses extends ListFragment {

问题 I have a main activity and a ListFragment containing a custom ArrayAdapter that is a tab of that main activity. The main activity has an AsyncTask that pulls down an xml file then calls another class to parse it when the app starts. The ListFragment data comes from the parsed data that the AsyncTask. I want to be able to call the custom adapter of the ListFragment so that I can notifyDataSetChanged in the onPostExecute method of the AsyncTask. How can I accomplish this? Right now, when I open

问题 I am working on a small project where I create a listview bound to an ArrayAdapter. In the getView() function of ArrayAdapter, I do a loading of images from web urls on thread, and set them to list items (based on position of course, so url[0] image is set to list_item[0] etc). It all seems to work well. However when I was testing the app, I noticed that if I wait my listview to fully display, then perform a fast scroll back and forth, I see sometimes the image on one list item is misplaced