android-listview

问题 I have a ListView and 12 ImageViews in it. Every ImageView has different image which is loading from url. Images are shuffled and sometimes duplicated either I scroll or not. I tried 10 other ways to solve this problem but have not succeeded. This is the code I download and show images: private static class ViewHolder { ImageView imageViewPhoto; Bitmap photo; boolean isDownloading; } @Override public View getView(final int position, View convertView, ViewGroup parent) { final ViewHolder

问题 I'm trying to create a custom AbsListView (overriding the same stuff on ListView, GridView and HeaderGridView) that will relocate all its drawing and touching events based on an external factor (other stuff that moves on the layout). Paddings are not an option here, because then the only way to try to control the AbsListView position is using the super crappy method smoothScrollBy(int distance, int duration) and that is giving me a whole level of different issues that I'm trying to overcome

问题 I am creating an application where in i need to have endless scrolling listview. I dnt want to use any library in my application. I have seen some examples on line that help in achieving such listview,but my doubt is how can i have an endless listview when my data are coming from server and are getting parsed in the Asynctask. How can i load 10 items at a time from my asynctask on scroll? I want to know to implement a endless listview on asyntask. Do i call my asynctask in the onScroll() or

问题 I have a layout which contains a ListView and a EditText below the ListView which is used for searching in list view. The problem is that when i close the soft keyboard after a search, it gives a jerk and shows white space while closing the soft keyboard. I have tried adjustPan, but it moves the whole layout up. 回答1: public static void hideKeyboard(Context context,View v) { InputMethodManager imm = (InputMethodManager)context.getSystemService( Context.INPUT_METHOD_SERVICE); imm

问题 I'm trying to get the text of the selected item and show it in a toast message. This is the code I wrote: final ListView lv = (ListView)findViewById(R.id.firstflightlist); lv.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { TextView c = (TextView) arg0.findViewById(arg1.getId()); String text = c.getText().toString(); Toast.makeText(getApplicationContext(), text, Toast.LENGTH_SHORT).show(); }}); The

问题 I know that many similar questions have been posted on stackoverflow, so please don't think I haven't searched high and low. I think my problems simply comes from now completely understanding listViews and the lifecycles of list items. I have a list view that can contain two types of messages, outbound or inbound. Originally, my listView would use a different background color depending on the type of message (outbound vs inbound), and it worked flawlessly. Now my application doesn't require a

问题 Is it possible to add text from java coding of a list view to marquee scroll in Android. If yes can you please let me know how? If needed I shall post the code used. This was the XML for listview used is as follows <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:id="@+id/linearLayout1" android:layout

问题 I am new on Android Applications development. I want to know how to implement Pull down refresh and Pull up get more item from server in Listview . How can I do it? My Code get items from server is below. private class DownloadJSONItems extends AsyncTask<Void, Void, Void> { @Override protected void onPreExecute() { super.onPreExecute(); // Create a progressbar if (!prefs) { progressBar.setVisibility(View.VISIBLE); } } @Override protected Void doInBackground(Void... params) { // Create an

问题 hello friends below is my code i m trying to show listitem in one listview with diffrent adapter so below is my code. public class ManagePropertyActivity extends FragmentActivity{ int getCommonID; ArrayList<Rent_Master>mArrayListRent_Masters; ArrayList<Expense_Master>mArrayListExpense_Masters; ListView mListView; View mViewHeader; RentAdpater mRenntAdpater; ExpenseAdpater mExpenseAdpater; @SuppressLint("NewApi") @Override protected void onCreate(Bundle arg0) { super.onCreate(arg0);

问题 For some reason after being shown an empty view for no matching items, my list view won't reappear after removing all text from the search view. Within my adapter class, AFAIK .clear() in mData.clear(); needs to change to something else but I don't know what to. ItemListAdapter class public class ItemListAdapter extends BaseAdapter implements Filterable { private List<Victoria> mData; private List<Victoria> mFilteredData; private LayoutInflater mInflater; private ItemFilter mFilter; public