android-listview

问题 I have a large JSON array. I am reading the data from JSON array and storing it in a list view, But the list view repeats the same data. i.e the last data from the JSON instead of displaying all the data. Here is my code. public class HistoryActivity extends AppCompatActivity { private Toolbar toolbar; String strServerResponse = null; ProgressDialog nDialog; Pojo pojo; ArrayList<Pojo> history; HistoryAdapter myAdapter; ListView list; public String date, inTime, outTime, inLat, inLong;

问题 I have CursorAdapter to show data from database. Now, I want add search functionality to custom listview. So, I tried with this. but, this is not working. searchOption.addTextChangedListener(new TextWatcher() { @Override public void onTextChanged(CharSequence cs, int start, int before, int count) { // TODO Auto-generated method stub AbstractActivity.this.cursorAdapter.getFilter().filter(cs); } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { // TODO

问题 so i have this listview, with the height of fillparent , and mainly it's taking half the size of the screen, but afterwards i need to change the parent layout of this listview. Here i start to notice that the app is freakeshly laging, after some diagnostic i understand that the getView() from the adapter is called so many times, PS: i had this issue at fist when the listview height was at wrapcontent , changing it to fillparent solved the issue, but came again with the height change, please

问题 How do i set the images in this layout? The ListView will contain 3 of the above entries, each image will be downloaded in an AsyncTask (See Below) and the text will be filled in by a String array of preset Strings eg String[] values = {"string one", "string two", "String three"}; I want to be able to first set the String content values of all 3 entries using the adapter below, then have AsyncTasks running in the background downloading and setting the icons for each entry. The Strings are

问题 in my app i use image button in list view. i write action for each image button. but i get java.lang.NoSuchMethodException: onClick exception. i do not know the reason for error please help me. how to write action for the image buttons . thanks in advance. public class InventoryListActivity extends ListActivity { private InventoryAdapter adapter; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.inventory_list); adapter = new

问题 I'm using a list view and there is a button called "Order" in the list item. I want to show a "tick" image when the user presses the button and hide it when the user presses the button again. My issue is when I clicked on the button on the first item, tick image of the 4th and 8th item is also appeared. This is the onClickListener in the adapter, viewHolderItem.btnOrder.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { boolean isSelected = shoe.isSelected();

问题 I make custom listview public class BounceListView extends ListView{ ... @Override protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { LOG.d("onOverScrolled"); } @Override protected boolean overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX, int scrollRangeY, int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) { LOG.d("overScrollBy"); } } I never get the log to be output which means this function never been

问题 I have a custom listview in tabhost in fragment. when I scroll the custom listview, TextView contents destroy, just seem empty . Here is my codes public class myFragment extends Fragment { private TabHost tabHost; private View view; private ArrayList<String> list = new ArrayList<String>(); private ArrayList<String> listMyDataIds = new ArrayList<String>(); private ListView lstViewMyData; private SQL sql; private MyDataAdapter adpMyData; private int i = 0; @Override public View onCreateView

问题 I have a " Dynamic ListView " which I keep adding elements into by clicking on items in another " Normal ListView ". Later I have one Button, I need to save all the ListView items when I click on this button because later I have to display the items in another activity and I don't know how I can display the Listview directly. ArrayString Text File TextView EditText Somewhere similar My problem How I can do that? 回答1: You could save your list file in the SharedPrefrences as a String, where

问题 I'm trying to mimic an action in the Twitter android app. When you long press/swipe a tweet (list item) it looks like this This makes it easy for the user to take actions on the list item without leaving the screen. How can I do something similar in my app? For now I've added a context menu which looks like this (notice that it fades out rest of the app). I achieved this by registerForContextMenu(listView) Currently, my list is like this: ListAdapter adapter = new SimpleAdapter( MainActivity