android-cursoradapter

问题 Gist: custom adapter gets file resource indirectly via filepath in database. Inefficiency / memory concerns. Your opinion requested. References to all searches, related links, and things useful re topic are at post bottom. Code below works , but several factors are of concern. Need some more experienced eyes on this please to suggest improvement or potential errors to avoid. App doesn't need to be a content provider (data sourced local to app only). The ListView in question will be very light

问题 i have a custom cursor adapter that fetches date from database and populate list , and its onlistItemClick listener i show a view attached to that row, and then hide that view by clicking it again, everything is working fine, but i have two problems, 1)- i have 10 rows, it shows 10, but when i log positions, it gives me only those positions, that fits to screen. 2)- when i click on a row, view appears that is attached to that row, but when i scroll down, i found another view is visible down

问题 I'm working on showing list of contacts with checkbox. I tried implementing my own cursor adapter and it is checkable. But once I check that value I want the contacts to be stored in ContactPerson object. But when I tried it is showing null pointer exception(That's why I commented out that code). My CursorAdapter code goes like this. ContactListAcitivity.java import android.app.Activity; import android.content.Context; import android.database.Cursor; import android.os.Bundle; import android

问题 After applying almost all answers from stack overflow on same topic but i can not find solution for my problem. my problem is i have a list view which contain a question and a edit text in each row. but when i scroll list view data in edit text change or it may happen it comes in other edit text. i.e if i write some thing in 1st editext after scroll it may happen it is in 2nd or 3rd row edittext. Some of the thing i have even tried from cursoradapter class but still. Please help me guys.

问题 This is a follow up to my question here: How to close a cursor used in a for loop The responses solved the "Cursor finalized without prior close" warning but it has caused a StaleDataException in a very particular situation. If the list has been scrolled, this cursor closed... Cursor cursor = null; cursor = (Cursor) getListView().getItemAtPosition(n); //do something if(cursor != null) { cursor.close(); } and the fragment backgrounded I get the following error: 09-15 21:16:58.240: E/test(21621

问题 This question is very similar to many other questions on StackOverflow, but I think it merits its own post due to a difference in approach compared to other questions here. I have a custom adapter that extends CursorAdapter . I'm updating the data and calling notifyChange on the appropriate URI in order to refresh the cursor. In debugging, I can see that this is working properly. Unfortunately, my list views are not being recreated. The reason that I need them to be recreated is because of my

问题 I am receiving a "swapCursor(Cursor) is undefined" error when creating a CursorLoader. I have imported the android.support.v4 (app.LoaderManager, app.LoaderManager.Loader, Content.CursorLoader, content.Loader). Not sure what I can do to correct this issue. please advise. loader: import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.LoaderManager; import android.support.v4.content.CursorLoader; import android.support.v4.content

问题 Background: I'm trying to implement a messenging system in my app, and I'm writing a custom CursorAdapter to display the messages in a ListView in the chat window. I want to use a different row layout for incoming and outgoing messages (information that is saved in the SQLite row in the cursor). Each row has the same elements in it with the same IDs, but they are arranged differently. The Problem: Currently, I have overridden newView() and bindView() . When the ListView is first populated, it

问题 I am using this Emoticon Keyboard. In the project author is using BaseAdapter (link to code) to render selected emoticons on list view. But for my application I am using CursorAdapter and this is the only difference. Everything is working fine, I can display emoticon popup, select emoticons and they get displayed in EditText . The problem Iam having is that in my app, I have Send button and when I click on that, emoticons don't get rendered on the list view (using cursor adapter), naturally I

问题 Within my project I have an activity with a multi-column ListView. This ListView draws its data from a custom CursorAdapter that I've implemented in a separate java module. I have listeners on a couple of the views within the ListView's rows, and these are implemented within the CursorAdapter. One of the listeners needs to edit the view content that called it and save the data back to the underlying database. This editing needs to startActivityForResult (as a custom dialog). However I get an