android-listview

问题 I have read about this confusing material, "listview scrolling lost content" and It made me frustrated. So I decide to ask here. Here is what I need: (TextItems) (TextValue) Item1 0 Item2 0 Item3 0 // after input custom edittext dialog, It must be: Item1 3 Item2 8 Item3 5 But, after I scroll down my screen(3 items isnot displayed on screen) then sroll up again, those item values is back to 0. Here is my Main.java: String[] items = {"Item1","Item2","Item3","Item4",..,"Item30"}; final ListView

问题 I would like to manage to obtain a listview with dynamic items. I built a row_layout containing an ImageView, and 2 TextViews. When I build the adapter, I want to be able to display the ImageView OR NOT depending on the row number. So I want to have img1 on row 2, img2 on row 3, then img3 on row 5. And on all other rows I do not want any imageView displayed (and also the alignment of the textviews must change filling the empty space left by the ImageView missing). Is that possible? I populate

问题 hi i've some problems with listview. My list do have very different cell heights, some of them are even bigger then the height of the screen. What I found out, that listview scrolling intepolator has problems with calculating the inertia. each time when there is big height difference between two cells currently switching in the visible area, the scrolling junks..I've looked into traceview and there actually is not that much of a delay. (there is no line tallet then the 16ms treshold, though

问题 After googling alot i never found any helpful answer, so i'm posting my issue here. My problem is as follows : I've a nested fragment ( MainActivity calls SettingsFragment and that fragment calls another fragment named as ContactFragment ) that uses a listview in it. I'm setting data in adapter but and call adapter.notifyDataSetChanged(); it adds an item with in ListView but show only images not TextViews . I debugged my code line by line each variable has its values but list items are not

问题 my images get shuffled or changed when i scroll in list view....... Images get shuffled when i scroll down and keep on changing own its own............... public class CustomListAdapter extends BaseAdapter { private ArrayList<NewsItem> listData; private LayoutInflater layoutInflater; public CustomListAdapter(Context context, ArrayList<NewsItem> listData) { this.listData = listData; layoutInflater = LayoutInflater.from(context); } @Override public int getCount() { return listData.size(); }

问题 ACTIVITY A adapter=new ArrayAdapter<String>(this, R.layout.salelistitems,R.id.saleNotes,listItems); setListAdapter(adapter); This part is working fine, just showing that I sent .putStringArrayListExtra("list", listItems); ACTIVITY B adapter=new ArrayAdapter<String>(this, R.layout.salelistitems,R.id.saleNotes,list); setListAdapter(adapter); ArrayList<String> al= new ArrayList<String>(); al = getIntent().getExtras().getStringArrayList("listItems"); if (al != null) { listItems.add(al+"");

问题 I use even and odd rows to set backgrond to my listview rows. In my efficientAdapter I set the row background as follows: public View getView(int position, View convertView, ViewGroup parent) { vi = convertView; if (convertView == null) { vi = inflater.inflate(R.layout.ecran_multiple_row, null); holder = new ViewHolder(); holder.txIndex = (TextView) vi.findViewById(R.id.txIndex); holder.txSTitle = (TextView) vi.findViewById(R.id.txSTitle); holder.btOnOFF = (ImageView) vi.findViewById(R.id

问题 Is there any way to dispatch touch event only to specific child in custom view group with stacked children. 回答1: For as long as you have reference on both, the child you want to receive the event and the parent, you can implement the parent to pass the touch to the child you wish to receive it. can you post the code of the View? So you can make something like: @Override public boolean onTouchEvent(Event e){ childToGetTheEvent.onTouchEvent(e); } Or is there any reason you cant do something

问题 I have to implement a listview in which my current data comes on top of the listview. Right now my recent data comes at the bottom and my first data is coming on the top of the listview. I'm attaching my work so far: SearchActivity.java public class SearchActivity extends Activity implements OnClickListener, OnItemClickListener { private EditText mHistoryNameEditText; private Button mInsertButton; private ListView mHistoryListView; private ListAdapter mHistoryListAdapter; private ArrayList

问题 I have a list of items in my Application class: public class MyApp extends Application { private static ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>(); //GET AND SET } I would to use it in ListView. I have a button to add one element in MyApp list: public void addBase(View view){ MyApp.add2List(....); //add to MyApp.list adapter.notifyDataSetChanged(); } And in the same activity I set ListView: list=(ListView)findViewById(R.id.list_view); adapter=new