android-listview

问题 I'm developing an app that grabs a list of clients of an API, and I need to show it in a listview, I'm using volley and what I tried to do is the following, but it's not working: public ListView txtDisplay; @Override protected Boolean doInBackground(Void... params) { try { txtDisplay = (Listview) findViewById(R.id.listView); String url = "http://192.168.1.1/rep-mais-api/api"; JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>(

问题 I have a viewpager in my activity which is dynamically populated with fragments. Fragments contain a listview which is causing the issue as it overlaps the bottom bar in nexus 5.0 (It may be a Lollipop Issue as its working fine on other devices.) The activity layout containing viewpage is as follows : <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android

问题 I want to make an activity that contains a viewpager and listview below it which you can scroll them both .. like these apps ... anyone can help 回答1: Well I could do it with some way by measuring the height of the listView and adding the listview and the view pager into scroll view here's the sample I've made public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.list); ViewPager

问题 I'm building a chat room application where new events are being polled for every X seconds. Every time that happens, this code updates the RoomAdapter (a custom subclass of ArrayAdapter) with the new data and scrolls it to the bottom: RoomAdapter adapter = (RoomAdapter) getListAdapter(); for (int i=0; i<newEvents.size(); i++) adapter.add(newEvents.get(i)); getListView().setSelection(events.size()-1); This is fine, except that if the user is scrolling up to glance at the room's history, it's

问题 I have a listview which loads images in every cell in async. When I try to scroll down slowly(after all the images in the current view are loaded), it works flawlessly. But when I try to scroll down before they are even loaded and scroll up, I face this issue. The cells start to show up images which don't correspond to them. My getView method looks like this: public View getView(final int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub View rowView = null;

问题 I tried to get image from network with Volley in listview item. While downloading image, the progress bar is showing, when complete, it should be hide. Here is my adapter: public class NewsAdapter extends CursorAdapter{ public NewsAdapter(Context context, Cursor c) { super(context, c, true); } @Override public Cursor getItem(int position) { return (Cursor) super.getItem(position); } @Override public void bindView(View view, final Context context, Cursor cursor) { final NetworkImageView

问题 I struggle with a common problem however I can't see the solution to it. What I'm trying to achieve is to display the list of questions (they come from parsed JSON) and radioGroup under each. I've manage to get questions list displayed. Now when I check the buttons and scroll down the list the upper buttons are loosing it state. I have followed and read about getView() and tryed different ways: stackoverflow.com/...how-to-handle-oncheckedchangelistener-for-a-radiogroup-in-a-custom-listview

问题 I am Doing Musicplayer Application. and want to show All the Songs with respect to its Genre. if possible then please give me some hint for that. i able to display all the Song With Respect to Artist and Album but Facing Problem While Going For Genre Wise Song. my out put is displaying all the Songs in Each genre catagory. it is not saprating the Song According to genre. Mycode is Below. LocalGenre.java package com.PageViewerTilesDemo.src; import java.util.ArrayList; import android.app

问题 When I had problems trying to fix the position of my listView items to the desired intent when filtered, and got info I could override the problem using a custom adapter, I have done that but I do not know how to assign the clicks to each items, please check below code: public class IndexPageActivity extends Activity { ListView listView; EditText editTextB; @Override protected void onCreate(Bundle savfedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState);

问题 I have a LinearLayout containing both a ListView and an EditText . When the On-Screen keyboard is launched by touching the EditText , the ListView resizes so that only the top few elements remain visible. The context that the ListView is being used in has the bottom few elements being more visually relevant than the top, and so I'd like for it to resize so that the bottom remains visible, rather than the top. Any pointers? (Incidentally, the current fix I'm using involves using