android-listview

问题 how can i pass the value or the position of the selected item in listview to a new activity tha will use that value to retrieve data from database in listview (in the new activity) i have code that it works but always pass a null value for the position that has been passed. my code for the first activity : listView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent,View view, int position, long id) { // ListView Clicked item index int

问题 My code goes here.............! when there is a row deleted from the list-view. The indexes of the rows of the listview is changed but the primary key id in the database is not changed. now when i click the item and pass the position of the clicked item of the listview to the new activity. And try to retrieve the record with that ID it does not return me something or incorrect data is returned. now my question is how can I detect the row id of the clicked item of listview in the database. Now

问题 I'm getting items duplicate on scroll down or switch to landscape mode, I've been reading some post about this subject before posting this new one, but the most of them explain the "else" catch on "if(converView == null)" which I already have on my code, but It anyways is getting duplicating. I'm going to give a simple example of what is my problem, I have a ListView on my "Payments" layout, as the name says, my ListView will show every payment I had register on my database. Basically I use a

问题 I want to click on ListView and perform some operation in the onItemClickListener listener, also on each row I have a button to perform some other operations. How can I do this? 回答1: You can try this: public class buttonWithList extends ListActivity { /** Called when the activity is first created. */ String[] items={"azhar","j"}; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); setListAdapter(new bsAdapter(this)); }

问题 Can we set an ArrayList containing HashMap into an ArrayAdapter ? i am using ArrayAdapter<ArrayList<HashMap<String, String>>> ad= new ArrayAdapter<ArrayList<HashMap<String,String>>>(this, android.R.layout.simple_list_item_1,items); but this gives me an error saying The constructor ArrayAdapter<ArrayList<HashMap<String,String>>>(searchname, int, ArrayList<HashMap<String,String>>) is undefined. 回答1: @nikhil you can you use below code, as this works for me. ArrayList<HashMap<String, String>>

问题 I am very much new to android and trying to learn various techniques including Search bar using Edit Text options. I am currently parsing Twitter using JSON and storing it in a list activity. Also, implementing is the search bar using EditText option such that when a user enters anything it receives a new arraylist.But somehow it needs to get integrated with TextWatcher and ListActivity. The actual error received : Create Constructor of TextWatcher. TwitterFeedAdapter has constructor as

问题 I have a FragmentActivity (main) which creates 3 Fragments and also a menu. Pretty straight forward, and from the examples in the Android SDK. @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); dbh = new DBHelper(this); // Create the adapter that will return a fragment for each of the // primary sections of the app. mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager()); // Set up

问题 I've followed this tutorial but when I try to run the application I get "Unfortunately RSSPro has stopped." This is my code for the RSSProActivity: package com.android.rss; import java.io.IOException; import java.io.InputStream; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; import java.util.List; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import org.xmlpull.v1.XmlPullParserFactory; import android.app

问题 Hello Stack Overflow Android Users, Please help with the following question: Problem I'm writing an a feature for an app that lists species of fish. I'm using a custom ListView Adapter class (let's call this FishSpeciesListAdapter) for the adapter. I have 27 fish species recorded as a default for the program as for now (you will eventually be able to add some yourself as well). The problem is that when I link the adapter to the actual listview xml object and scroll down the list, after a

问题 My app has a main activity that implements the TabListener class. In it, I can switch between 5 tabs. Here is how I manage this on my main activity: @Override protected void onCreate(Bundle p_SavedInstanceState) { super.onCreate(p_SavedInstanceState); setContentView(R.layout.main_fragment_activity); m_User = (User) getIntent().getExtras().getSerializable("User"); if(m_ActionBar == null) m_ActionBar = getSupportActionBar(); if(m_ActionBar.getTabCount() == 0) { m_ActionBar.setNavigationMode