baseadapter

问题 This is my list view adapter in which I am sending listview data to server ans sqlite on the button clock asyn task. I want to use a progress dialog but I'm having problem while passing the activity's instance and my code crashes on the progress dialog. public class PlannningListViewAdapter extends BaseAdapter{ Context context; public ArrayList<Planning> planArraylist; private static LayoutInflater inflater = null; public PlanningList_activity planActivity; public ListView mListview; Db

问题 I'm parsing vk's group wall. Some posts have photos(from 1 to 10), some don't have. And I need to display them. However, all the images are repeated. And I can't make them appear correctly. I'm using Picasso at the moment. It says it can process ListView images, however it doesn't. Other ways I foun on google don't work either. The question is how to process images correctly. Here is a piece of code that is responsible for photo. private void place_photos(View view, ArrayList<VKPhoto> photos)

问题 I have ArrayList<MyObject> data which is populated on the ListView using a CustomAdapter . I've implemented View.OnClickListener in the CustomAdapter class and clicking a button deletes the particular row. After deleting the row, both from database and from the data object using data.remove(i) inside the Custom Adapter, I call notifyDataSetChanged() . Problem is that it does not refresh teh ListView . I'm using a tabbed activity with fragment. So, when go to some distant tab and come back to

问题 I have an activity that is generated by a custom BaseAdapter and look like this: This is the getView off the custom BaseAdapter: @Override public View getView(int position, View view, ViewGroup parent) { final Visita visita = getItem(position); view = mInflater.inflate(R.layout.visita_item, null); //The ListView Item ImageButton btnUp, btnDown; btnUp = (ImageButton)view.findViewById(R.id.visita_btn_move_up); btnDown = (ImageButton)view.findViewById(R.id.visita_btn_move_down); btnUp =

问题 I am trying to make a list view that contains pictures and text within another activity. I am not so focused in android programming, so basically like a newbie in android programming and i have difficulties in debugging my app. please help me :) Error : Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference at com.fingervoiz.app.tamla.Activity.ListDataIdntActivity.onCreate

问题 I got a ListView, populated using BaseAdapter . In the listview Item there's a numeric EditText: ... <EditText android:id="@+id/edit_quantita" android:layout_width="50dp" android:layout_height="30dp" android:layout_gravity="center" android:layout_marginTop="5dp" android:background="@drawable/edit_quantita" android:gravity="center_vertical|center_horizontal" android:inputType="number" android:text="1" android:textColor="#fff" tools:ignore="HardcodedText" > </EditText> ... When I tap on this

问题 I am using Listview and set the multiple item and each item have Like, share and comment option. Actually I have fetch the Item Id and also setText of TextView , Its Successfully. But Not able to get Item Id on Like Button Click event for particular item. How to fetch Item Id for every items in Listview on Button Click Event? Demo for MyAdapter Class: public class Adapter1 extends BaseAdapter implements OnClickListener { public ArrayList<HashMap<String, String>> arr = null; Context context =

问题 I have implemented an adapter for my ListView which extends BaseAdapter. My list items contain buttons that each of them have OnClickListener. after adding OnclickLister for each item, the list's OnItemClickListener stoped working. How can it be fixed? the code In my Activity - ListView lv = (ListView) findViewById(R.id.list); lv.setTextFilterEnabled(true); lv.setItemsCanFocus(true); lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view

问题 I am learning BaseAdapter. I have custom listview. I want to fill data in listview from database. I am getting error of Null Pointer. Here is my code. DbTools.java public class DbTools extends SQLiteOpenHelper { public DbTools(Context context) { super(context, "local.db", null, 1); } @Override public void onCreate(SQLiteDatabase db) { db.execSQL("create table ashu(Name varchar, address varchar)"); } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db

问题 I am populating listview for search in tabwidget.My list contain an image and textview.Without TabWidget it works fines but in TabWidget it gives error .I have error in getview My locat is 08-07 16:24:44.300: E/AndroidRuntime(20166): FATAL EXCEPTION: main 08-07 16:24:44.300: E/AndroidRuntime(20166): java.lang.NullPointerException 08-07 16:24:44.300: E/AndroidRuntime(20166): at com.example.project.SearchDictionaryActivity$MyCustomAdapter.getView(SearchDictionaryActivity.java:392) 08-07 16:24