android-listview

问题 This problem is discussed in this question Android: Wrong item checked when filtering listview. To summarize the problem, when using a listview with a CursorAdapter and a filter, items selected on a filtered list lose their selection after the filter is removed and instead, items at that position in the unfiltered list get selected. Using the code sample in the linked question above, where should we put the code to mark the checkboxes. I believe it should be in the getView() method of the

问题 I followed a good tutorial, with some changes, to create a custom ListView that will allow me to display multiple images for each row in my ListView. What I would like to do is highlight by selecting multiple items in the list and then perform some sort of action to all of those list items by selecting an option on my Options Menu. However, the problem I seem to be running into is that I cannot select multiple items, even though I have added android:choiceMode="multipleChoice" to the ListView

问题 So I have two fragments linking to layout files which display ListViews. The ListViews are defined in the xml and have entries from a string array. I want to click on items in the ListView and open new activities. There are 8 items in one ListView and 9 in the other. In the onItemClick code, how do I create intents to start activities based on the item clicked? I will create 1 class per item as its own activity. How can I start the activities in the classes via intents inside the onItemClick

问题 I'm using aListview of Images (Code is not necesary, it only shows FullScreen Images). The Listview is created dynamycally and I can't creat it on xml. My problem comes when trying to click on an item. I dont want the orange flashy effect that it shows. Is there any way to evade the effect? 回答1: Changing background color of ListView items on Android 回答2: lv.setOnItemClickListener(new OnItemClickListener() { @SuppressWarnings("deprecation") @Override public void onItemClick(AdapterView<?>

问题 I sometimes run into the following scenario : I call View.post(Runnable r) and it returns true when calling android.os.Looper.myLooper().dump(...), the runnable seems not in the messageQueue after calling invalidate on the main layout (for example after 20 seconds), the Runnable gets executed This only happens from time to time, it happens on multiple devices and on multiple Android versions. The problem seems similar to Runnable is posted successfully but not run and Android: Button within

问题 I want to create a chat activity in which user can send and receive messages. Sender messages on right in bubble with time stamp and received messages on left in buble with time stamp. What I have done so far is that I have created a chat application its working fine, i get my messages on right and received messages on left but I don't know how to add time stamp in bubble just like whatsapp. Please help its very important for me. 回答1: use following code to get current time : DateFormat df =

问题 I want to display only 5 rows in a ListView and rest of them should be scrollable .So far i have tried this <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" > <EditText android:id="@+id/txtFilename" android:layout_width="375dp" android:layout_height="wrap_content" android:layout_margin="10dp" /> <ListView android:id="@+id/ListView01" android:layout_width="fill_parent

问题 I've made a navigation drawer in my app. Inside my navigation drawer is a ListView . It's a simple list view with text items. The Gmail android app has a ListView with headers. (source: phonedog.com) As you can see, the words: INBOX, RECENT LABELS, ALL LABELS are headers. I would like to implement exactly those type of headers into my app. Is this feature an inbuilt android thing or do I have to create something custom. If yes then how. Let me know if you need any more info. Thanks in Advance

问题 I'm trying to show front and back face of each of my listview item with Flip animation . Animation works well, but the result of anim is being applied to other items also. And furthermore, the position of my items change when I scroll up and down. My code is as below: public View getView(final int position, final View convertView, ViewGroup parent) { ArtItemHolder holder; View view = convertView; if (view == null) { LayoutInflater inflater = ((Activity) this.context).getLayoutInflater();

问题 I have create a listfragment and a button which looks like as follows ( Image on the left ) whenever i click on a ADD button a new Activity opens up and inside that user write something and click on DONE , the activty finishes and return to the ListFragment , but after click over DONE how would i update the ListFragment with new values. i mean where can i write notifyDataSetChanged. Note: when i click on DONE , the data will get store in the database , and when the ListFragment loads , it