android-listfragment

问题 Here is my code for fragment extending ListFragment and below are the errors it is showing.Almost Same code is working fine for activity except that in activity i am getting listview through ListView lv = getListView(); and in fragment through lv= (ListView)rootView.findViewById(R.id.list); It shows nullpointer exception on line java:109 lv.setOnItemClickListener(new AdapterView.OnItemClickListener() If i remove setOnItemClickListener it shows null pointer exception on lv.setAdapter(adapter);

问题 I have been working on trying to implement two listviews inside a list fragment, I have stated two list views in my xml and tried to set two seperate sets of data in the java file but the list view data intended for the first lisview is overwritten by the second. How would I be able to point it to the correct listviews using the code below? Java for fragment where list should go: package com.owais.shopsellswap; import java.util.ArrayList; import java.util.HashMap; import android.os.Bundle;

问题 I want to create a very simple cursor custom cursor adapter to facilitate changing the colors of row items on click. Using the following code private static int save = -1; public void onListItemClick(ListView parent, View v, int position, long id) { parent.getChildAt(position).setBackgroundColor(Color.BLUE); if (save != -1 && save != position){ parent.getChildAt(save).setBackgroundColor(Color.BLACK); } save = position; } I got the code from this thread https://stackoverflow.com/a/7649880

问题 I want to create a very simple cursor custom cursor adapter to facilitate changing the colors of row items on click. Using the following code private static int save = -1; public void onListItemClick(ListView parent, View v, int position, long id) { parent.getChildAt(position).setBackgroundColor(Color.BLUE); if (save != -1 && save != position){ parent.getChildAt(save).setBackgroundColor(Color.BLACK); } save = position; } I got the code from this thread https://stackoverflow.com/a/7649880

问题 I'm trying attach a footer, that is fixed and always visible, to the bottom of a ListFragment. I'm currently doing it like this: @Override public void onActivityCreated(Bundle savedInstanceState) { // ... adapter = new MyAdapter(getActivity(), R.layout.list, dataList); ListView list = getListView(); View footer = ((LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.footer_add, null, false); list.addFooterView(footer); setListAdapter(adapter); }

问题 I'm trying to get the fast scroll pop up containing the large letter to appear when I the fast scroll feature in my list (just like in the image below), but for some reason it won't appear. I've consulted various tutorials but it still doesn't seem to work + I'm not sure if code is missing or some code is in the wrong place. All help would be appreciated. strings.xml <resources> <string name="app_name">World</string> <string name="action_search">Search</string> <string name="search_hint"

问题 I have posted the same problem a couple of times but it hasn't yet been resolved. I have a ListFragment and I want to highlight the selected item in the list. I have been given suggestions to use a "selector". I don't understand how to use this selector. My ListFragment class is: // Create an adapter with list of stores and populate the list with // values ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, StoreList); setListAdapter

问题 I need to build a layout with the set of linear layouts. The layout has to occupy a defined percentage of the screen. I need to do this to have a similar look in all the devices. Issue: I have a textview in the top right layout (green color box ). Whenever I add some data in the textview it disturbs the entire layout as shown below in the 2nd image. But I need to have the data wraps automatically when it reaches the right end of the screen/layout. Please help me to resolve this. Thanks In

问题 I need to build a layout with the set of linear layouts. The layout has to occupy a defined percentage of the screen. I need to do this to have a similar look in all the devices. Issue: I have a textview in the top right layout (green color box ). Whenever I add some data in the textview it disturbs the entire layout as shown below in the 2nd image. But I need to have the data wraps automatically when it reaches the right end of the screen/layout. Please help me to resolve this. Thanks In

问题 I want to implement a List layout similar to Google Play which have menu for every individual Row. Please help me to create this. Do I need to create a Popup Menu or there is any option available to achieve this. Thanks 回答1: Looks like you are trying to do exactly the way in the image shown. I am just giving an example of how I am trying to achieve this. Here's how I am doing this. Not very difficult. Just straight implementation of Popup Menu. Step 1 : My Adapter public class ListAdapter