android-listview

Android Custom wheel or slot machine implementation

我怕爱的太早我们不能终老 提交于 2019-12-03 11:39:19
I need to implement a wheel like control (a slot machine) like in the picture. But the edges (the position between the items) of each item need to be smoothened so that it will look like a globe like the earth. This is a screen shot of iPhone app achieved from a library for iPhone. I want it in android. I checked the kankan wheel (Android wheel) but it does not serves my needs. However it's cyclic behavior is needed for me. And I checked the following link also. http://developer.sonymobile.com/2010/06/23/android-tutorial-making-your-own-3d-list-part-3/ I played with canvas and matrix with some

Can I make a ListView item not selectable?

冷暖自知 提交于 2019-12-03 11:31:29
问题 I am implementing an endless ListView (like in the Twitter app). I want to make the last item not selecteble. So that if the penultimate item is selected and I scroll down with my trackball, nothing happens. I tried setting android:focusable="false" and android:cickable="false" but I didn't notice any chnage. 回答1: It's pretty easy, in your adapter you can override the method isEnabled(int position) and return false for this item. 回答2: if you're using custom array adapter just override this

Idea on implementing the following pop up menu in ListView

女生的网名这么多〃 提交于 2019-12-03 11:17:21
问题 I would like to have pop up menu, when I click on the 3 dots area in a ListView row. registerForContextMenu won't meet my need, as it happen during long press, in any area of ListView row. I would like to know. How to create a 3 dots looking UI in ListView row? How to have PopupMenu, even for Android 2.3? 回答1: You can use ImageView to display image with 3 dots. There are two ways for popupmenu a) Use some layouts and make them visible/gone b) Use PopupWindow . here is sample code for

Android Endless list memory management

孤人 提交于 2019-12-03 11:06:27
问题 I'm implementing an endless listview by loading more items to the arraylist in the onScrollStateChanged(...) method. If I'm implementing this scheme for fetching more than 1 million entries, I will have a million objects added to the arraylist, which is memory intensive. What schemes can I use for efficient memory management ? PS: The question is about the number of items that can be put into the adapter. Edit: More details: The source of the data is Internet. I have to fetch the data from

How to refresh Youtube Player View onItemClickListener() in a ListView

大城市里の小女人 提交于 2019-12-03 11:00:57
问题 I am able to play Youtube videos using cuePlaylist() but I also want to allow user to tap on any of the list item and then I want to refresh YoutubePlayerView with the video user just tapped I am using cuePlaylist() so getting previous and next buttons as default functionality of Youtube player So can I refresh YoutubePlayerView with the one I have selected in a ListView ? Here is my complete code, still when I do tap on any of the list item, not getting any change in YoutubePlayerView but

Select All items of a ListView (custom row with checkbox in it)

守給你的承諾、 提交于 2019-12-03 10:46:06
What I have: I have a ListView with custom rows, having a CheckBox & two TextViews in each row. I have a button for "Select All". What i want: I want that when I click the button, all the CheckBox in ListView get checked/unchecked. What is the problem: In OnClick of the "Select All" button. i am doing this: public void OnClickSelectAllButton(View view) { ListView l = getListView(); int count = l.getCount(); for(int i=0; i<count; ++i) { ViewGroup row = (ViewGroup)l.getChildAt(i); CheckBox check = (CheckBox) row.findViewById(R.id.checkBoxID); check.setChecked(true); // true for select all and

Saving and Reloading ListView using Shared Preferences [Saving onDestroy()]

吃可爱长大的小学妹 提交于 2019-12-03 10:17:26
问题 I am creating a To Do List. Right now my app adds and removes data to and from a ListView. However, when I close my application the data gets erased. I want to use SharedPreferences to save the data onDestroy(), then when my app opens I wanted the data to reload. However, I don't know how to go about accomplishing this task. Can anybody help me with saving a ListView using Shared Preferences (aka I am looking for code)? There are tutorials for just one shared preference I am looking to

List view implementation with text view and toggle button i=

我是研究僧i 提交于 2019-12-03 10:06:52
Here in my application I want to create the list view with toggle button and text view. when I am clicking on the list item I want to go next Activity. But when I am clicking on the Toogle button I need to display it is in off mode or on mode. below I add my code. $ This is my main activity public class MainActivity extends Activity { int startminute; int endminute; Date date; ToggleButton togg; ListView lv; String[] days = { "SUNDAY", "MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY" }; boolean[] onOff = new boolean[] { false, false, false, false, false, false, false };

Tap to refresh is visible all the time and gap is still visible on list view

喜你入骨 提交于 2019-12-03 09:15:53
I am using pull to refresh in my application. Pull to refresh is working fine when the list size is crossing screen. But when the size is one or two there is a gap between the header and the listview saying tap to refresh. Here is my code public class PullToRefreshListView extends ListView implements OnScrollListener { private static final int TAP_TO_REFRESH = 1; private static final int PULL_TO_REFRESH = 2; private static final int RELEASE_TO_REFRESH = 3; private static final int REFRESHING = 4; private static final String TAG = "PullToRefreshListView"; private OnRefreshListener

Update Android ListActivity when list data changes?

一个人想着一个人 提交于 2019-12-03 09:02:48
问题 I wanted to know how to refresh a ListActivity when I change/add data to it. I first thought that ListAdapter would know when the list is changes, but when I have added elements to the list there is no update on the ListActivity , only when I close the ListActivity and reopen it again I see the changes occur. So I searched for any method such as: update(), refesh() or something like that, but there is none. It seems I haven't gotten the concept, can someone help me please? 回答1: If you are