android-listview

Problems with Listview adapter

£可爱£侵袭症+ 提交于 2019-12-12 03:11:08
问题 I have an app which uses a Listview to display Lectures. The Lectures are colour coded according to their type. I used a custom adapter to control the different colours of each lecture. I call the adapter using the code below - cursor = myDbHelper.getReadableDatabase().rawQuery(sql, null); startManagingCursor(cursor); adapter = new Lectures_Adapter(this,R.layout.menu_item,cursor,FROM,TO); menuList.setAdapter(adapter); This all works ok until I re-order the Lectures, say by Location. The code

Nullpointerexception on getChildAt

我怕爱的太早我们不能终老 提交于 2019-12-12 03:09:31
问题 I have a listview with some check boxes and i need to check them automatically according to some data that are stored in array. My custom adapter that extends base adapter: public class MyAdapter extends BaseAdapter { private Context context; public SPCMjereAdapter(Context c) { context = c; } public int getCount() { return MyArrList.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public int getlistItemsCount() {

ArrayAdapter contains an object based on a value

不问归期 提交于 2019-12-12 03:08:19
问题 I have a ListView and ListView adapter. I am adding objects to the adapter but I only want to add one row with an object that contains a certain String . This is my code but it does not work: public static List<FriendsVideoLVModel> list = new ArrayList<FriendsVideoLVModel>(); @Override public void add(FriendsVideoLVModel obj) { super.add(obj); for (int i=0; i <list.size(); i++) { if (!obj.eventTitle.equals(list.get(i).eventTitle)) { list.add(obj); notifyDataSetChanged(); } } } Please help.

Android - Set the Source of an ImageView inside a custom listView adapter from the getView function does not work properly

大憨熊 提交于 2019-12-12 03:07:57
问题 Apologies for the long title. I am building an Android application where an activity contains a custom listView. In the layout of my custom listView, I have an image view and three textViews. I am fetching the data from the database and I have no issues with the row data as they're accurate. However, I have issues with displaying the ImageViews. What I do to populate the imageView is that I get the imagePath stored from the database, parse that URL (local server only), then set the ImageViews

Android - How do implement ListViewAnimation to an existing ListView?

人走茶凉 提交于 2019-12-12 03:07:26
问题 I have a ListView that its contents are populated from a remote server. It's a simple ListView created by following tutorials you normally found on blogs. Recently, I've found out ListViewAnimation and would like to use it in my project. I already have a Listview, now how do I implement the listviewanimation library in the existing one? I have tried to follow the wiki on github, but still couldn't make through it. Here is my ListView activity: public class CategoryActivity extends

Populating JSON listview in a fragment with volley

╄→尐↘猪︶ㄣ 提交于 2019-12-12 02:58:11
问题 I am a green horn in java/android programming but I was trying to add different tutorials to create a customized application that would be a cool experiment, this could be something very easy to most of the people here but am stuck in this one and I am trying to use this Navigation Drawer View Pager trying to populate the tab one fragment with this Custom ListView with Volley.from android hive "great tutorials btw". I want to transfer the code in the MainActivity.java of custom listview with

how to show a activity(login screen) under android navigation drawer

被刻印的时光 ゝ 提交于 2019-12-12 02:53:55
问题 Basically my requirement is to show a login screen to the user using the sliding out navigation like Facebook slide out menu. I tried the navigation drawer example available on android developers website it shows only using list view. Can any one tell me please is it possible to show a activity using navigation drawer? please see the image below: could any one please help me to get rid of this? 回答1: i have edited Navigation Drawer Example download it. change it below way. in Main Activity

How to have a ListView with icons beside the text?

和自甴很熟 提交于 2019-12-12 02:49:08
问题 I'm trying to have a ListView with icon and text but there is a little problem as you can see in the screen shot (only a very small part of text is visible!): Here is the xml files creating this layout: //The overall layout <?xml version="1.0" encoding="utf-8"?> <LinearLayout android:id="@+id/LinearLayout01" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" > <ListView android:id="@+id/ListView01" android:layout

Clicks/touch not working on ListView

情到浓时终转凉″ 提交于 2019-12-12 02:48:53
问题 I have used ListView and bounded my custom ArrayAdapter to it. Have setOnItemClickListener(...) bound to it. Also have 2 buttons, 'next' and 'previous'. On click of each button I call a webservice and as per response received I update adapter( and expect ListView to get updated.) My problem is that after few next and previous clicks, Touch does not works on ListView. Have invested lot of time in figuring out, Please help me out. one of my findings is: usually observed that problem occurs

Android : check when listview finish implementation or ready

ⅰ亾dé卋堺 提交于 2019-12-12 02:48:04
问题 PROBLEM I want to click Listview Programmatically after onResume() and retain ListView but I don't know when and where should I implement click logic because now it Force close because I call function to early (I have check return view is null) I use Handler() Runnable() and Thread() method becuase I think that this will queue my code after listview finish implementation. What should I do?? EXAMPLE OF USING HANDLER RUNNABLE and THREAD final Handler handler = new Handler(); Runnable runnable =