Android – Simple ListView using SimpleAdapter

135 Replies

In Android Applications, ListView helps you to display the contents of an array with flexible size. The following example shows you how to create a simple ListView.

1. First create a new Android project

2. Create the following Java class

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class ListViewA extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        ListView lv= (ListView)findViewById(R.id.listview);

        // create the grid item mapping
        String[] from = new String[] {"rowid", "col_1", "col_2", "col_3"};
        int[] to = new int[] { R.id.item1, R.id.item2, R.id.item3, R.id.item4 };

        // prepare the list of all records
        List<HashMap<String, String>> fillMaps = new ArrayList<HashMap<String, String>>();
        for(int i = 0; i < 10; i++){
        	HashMap<String, String> map = new HashMap<String, String>();
        	map.put("rowid", "" + i);
        	map.put("col_1", "col_1_item_" + i);
        	map.put("col_2", "col_2_item_" + i);
        	map.put("col_3", "col_3_item_" + i);
        	fillMaps.add(map);
        }

        // fill in the grid_item layout
        SimpleAdapter adapter = new SimpleAdapter(this, fillMaps, R.layout.grid_item, from, to);
        lv.setAdapter(adapter);
    }
}

 

 

3. Create the following 2 layouts
main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:id="@+id/main"
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical"
	android:layout_height="fill_parent"
	android:layout_width="fill_parent">
	<!-- Header -->
	<LinearLayout android:id="@+id/header"
		android:background="#ff347c12"
		android:layout_height="wrap_content"
		android:layout_width="fill_parent"
		>
		<TextView android:id="@+id/item1"
			android:layout_height="fill_parent"
			android:layout_width="wrap_content"
			android:width="20dip"
			android:height="30dip"
		/>
		<TextView android:id="@+id/item2"
			android:layout_height="fill_parent"
			android:layout_width="wrap_content"
			android:text="col_1_h"
			android:width="100dip"
			android:height="30dip"
		/>
		<TextView android:id="@+id/item3"
			android:layout_height="fill_parent"
			android:layout_width="wrap_content"
			android:text="col_2_h"
			android:width="100dip"
			android:height="30dip"
		/>
		<TextView android:id="@+id/item4"
			android:layout_height="fill_parent"
			android:layout_width="wrap_content"
			android:text="col_3_h"
			android:width="100dip"
			android:height="30dip"
		/>
	</LinearLayout>

	<!-- List Divider -->
	<View android:layout_width="fill_parent"
		android:layout_height="1dip"
		android:background="?android:attr/listDivider" />

	<!-- ListView (grid_items) -->
	<LinearLayout android:id="@+id/layout"
		android:layout_width="wrap_content"
		android:layout_height="fill_parent">
		<ListView android:id="@+id/listview"
			android:layout_height="fill_parent"
			android:layout_width="fill_parent">
		</ListView>
	</LinearLayout>
</LinearLayout>

 

 

grid_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
        <TextView android:id="@+id/item1"
        	android:text="row_id"
        	android:layout_height="fill_parent"
        	android:layout_width="wrap_content"
        	android:width="20dip"
        />
        <TextView android:id="@+id/item2"
	        android:text="col_1"
	        android:layout_height="fill_parent"
	        android:layout_width="wrap_content"
	        android:width="100dip"
	    />
	    <TextView android:id="@+id/item3"
	        android:text="col_2"
	        android:layout_height="fill_parent"
	        android:layout_width="wrap_content"
	        android:width="100dip"
	    />
	    <TextView android:id="@+id/item4"
	        android:text="col_3"
	        android:layout_height="fill_parent"
	        android:layout_width="wrap_content"
	        android:width="100dip"
	    />
</LinearLayout>

 

 

4. Try it!

Done =)

Update 2010-03-15 (Suggested by Mike)
If you want change the background color of the rows in the ListView. Take a look at Android – Applying Alternate Row Color in ListView with SimpleAdapter.

About these ads

135 thoughts on “Android – Simple ListView using SimpleAdapter”

  1. Varun

    Hi,

    This works beautifully! Thanks!
    However, I haven’t been able to make these list items clickable. I want to be able to launch a new activity with some params when a user clicks on one of the items.

    The code that I’ve added is as below: 

    lv.setOnItemClickListener(new OnItemClickListener() {

  public void onItemClick(AdapterView adapterView, View view, int position, long id) {
    SimpleAdapter adapter = (SimpleAdapter) adapterView.getAdapter();
    ListView currentLv = (ListView) view;
				
    Object item = adapter.getItem(position);
    //Do some more stuff here and launch new activity
				
				
  }
});

    However, the items remain unclickable – I can select them using my the navigation keys but again there is no action that leads it to go to this piece of code.

    Please help me here! I need to get this Click Event working…

    Thanks,

    Varun

    Reply ↓
    1. ykyuen Post author

      Hi Varun,

      Try to run your program in debug mode and add a break point within the public void onItemClick. The program should pause at the break point if u click the list view item.

      Regards,
      Kit

      Reply ↓
    3. Tapaswini 
      lv.setOnItemClickListener(new OnItemClickListener() {
  public void onItemClick(AdapterView parent, View view,
    int position, long id) {
    String  U_id = ((TextView)view.findViewById(R.id.ID)).getText().toString();
  }
});
      Reply ↓
      2. Tapaswini

        please help me
        how to change the content of of SimpleAdapter after clicking the search button.
        Means i want to show data through SimpleAdapter but data depends upon the search result.

  3. Noelle

    Hi can you help me out with this?
    This is the example from the android developer website, HelloListView.

    I’m having some problems over here -> 

    lv.setOnItemClickListener(new OnItemClickListener() {
  public void onItemClick(AdapterView parent, View view, int position, long id) 
  {
    // When clicked, show a toast with the TextView text
    Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
    Toast.LENGTH_SHORT).show();
  }
});

    The onItemClickListener and View view having problems. Can you help me out? Thanks!

    Reply ↓
    1. ykyuen Post author

      Hi Noelle,

      i am not sure the exact problem but i suggest you could try public void onItemClick(AdapterView adapterView, View view, int position, long id) instead of public void onItemClick(AdapterView parent, View view, int position, long id).
      have u ever tried running it in debug mode?

      Kit

      Reply ↓
  4. Chua Wei Ting

    Hi there, I have stored data in my sqldatabase and i want to show it out in listview, but i’m not able to.

    Do you have a sample of that? Both are textviews.

    Reply ↓
  6. stelioschar

    Hello there,

    I would like to use this example code, but the items of the list to be a list after an XML Parsing..

    In otherwords, i want to parse an XML and after that to make a list like this one you’ve already made.. :S

    Reply ↓
    1. asmo

      (Forgot to mention: Thanks a lot for a good example!)

      Seems that the comment system ate my XML… Basically I replaced the LinearLayout in main.xml line 48 with a ScrollView. Also tried to add the ScrollView above the LinearLayout so that the SV contains the LL — same output.

      Reply ↓
  9. asmo

    My bad, rookie-mistake: I didn’t have the android:fillViewport=”true” -tag on the scroll view… That took care of it and now it works nicely, scrolling the dynamic list.

    Sorry to spam your comments too soon before studying the problem enough. :)

    Reply ↓
  10. juro

    HI,
    nice tutorial! it helped me a lot, thanks!
    i have just 1 question … how can i change settings of textviews in grid_item.xml programmatically? like

    TextView item1 = (TextView)findViewById(R.id.item1);
.....
item1.setTextColor(Color.YELLOW);

    it throws me NullPointerException if i do that =/

    Reply ↓
    1. ykyuen Post author

      Did u forget to import the android.graphics.Color

      try

      ...
item1.setTextColor(android.graphics.Color.YELLOW);
...

       

      or you can define your own color in the resource file. Create the res/values/color.xml

      <?xml version="1.0" encoding="utf-8"?>
<resources>
  <color name="orange">#ff5500</color>
  <color name="white">#ffffff</color>
</resources>

       

      Then you should be able to set the color by

      ...
item1.setTextColor(R.color.orange);
...

       

      Reference: Stack Overflow – Android color xml resource file

      Reply ↓
      1. juro

        i solved problem by makeing my own adapter like you did in one other tutorial. problem is, that anything i want to do with TextViews in grid_item.xml, it throws me an NullPointerException,

      2. ykyuen Post author

        I didn’t meet your problem. i added the setTextColor() function in the in OnItemClickListener as follow.

        OnItemClickListener itemClickedListener = new OnItemClickListener() {
  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
    // TODO Auto-generated method stub    
    TextView item2 = (TextView)view.findViewById(R.id.item2);
    item2.setTextColor(android.graphics.Color.YELLOW);
	}
};

        I guess you have missed sth, are u sure u have imported all the required class?

  11. Abhijeet

    Hi there,
    I’ve created one calendar, on clicking any day of the calendar it will show the list of audio recordings for the day, but now on clicking any one of these recordings it must play it, i’m unable to implement this part. please help me out..

    Thanx..

    Reply ↓
  13. Alex

    Hi,

    thanks for your code and the explantions. However, I cannot get it to work: it always throws a null-pointer exception in line 35: lv.setAdapter(adapter);

    I have copied your code 1:1, and I am not able to find the error… Do I miss something obvious perhaps?

    BTW, I am developing on Android 2.2…

    Reply ↓
  14. Juhani

    Hey, thank you for making this blog entry. I always need to come back an copy your example whenever I need to build a list. This is truly helpful! Thank you!

    Reply ↓
    1. ykyuen Post author

      Hi Juhani,

      Good to know that it could help u. As Douglas Merrill said…
      Knowledge is not power. The SHARING of knowledge is power..

      By the way, ur blog looks great!

      Regards,
      Kit

      Reply ↓
  15. Keith

    great example.. one thing I wuld like to add, say to the last column is a url link. so when I user clicks it it opens the browser…now I’m able to create the link OK with linkify but when I try to apply to the listview it only shows the text of the link but is not an actual link.

    Any idea how to apply the link to the 3rd column.

    Reply ↓
  16. sachin

    i used hashmap for customized listview but only 5 random items are displaying what is the problem?

    public class MyCustomListView extends ListActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.custom_list_view);
        
        SimpleAdapter adapter = new SimpleAdapter(this,list,R.layout.custom_row_view,
        		new String[] {"name","height"},
        		new int[] {R.id.text1,R.id.text2}
        		);
        populateList();
        setListAdapter(adapter);
    }
    
    static final ArrayList&lt;HashMap&gt; list = 
    	new ArrayList&lt;HashMap&gt;(); 

    private void populateList() {
    	HashMap temp = new HashMap();
    	temp.put("name","Chavand");
    	temp.put("height", "3400ft");
    	list.add(temp);
    	HashMap temp1 = new HashMap();
    	temp1.put("name","Durg-Dhakoba");
    	temp1.put("height", "3900ft &amp; 4100ft");
    	list.add(temp1);
    	HashMap temp2 = new HashMap();
    	temp2.put("name","Hadsar");
    	temp2.put("height", "3200ft");
    	list.add(temp2);
    	HashMap temp3 = new HashMap();
    	temp3.put("name","Jivdhan");
    	temp3.put("height", "3754ft");
    	list.add(temp3);
    	HashMap temp4 = new HashMap();
    	temp4.put("name","Korigad");
    	temp4.put("height", "3000ft");
    	list.add(temp4);
    	HashMap temp5 = new HashMap();
    	temp.put("name","Lohgad");
    	temp.put("height", "3400ft");
    	list.add(temp5);
    	HashMap temp6 = new HashMap();
    	temp.put("name","Malhargad");
    	temp.put("height", "3100ft");
    	list.add(temp6);
    	HashMap temp7 = new HashMap();
    	temp.put("name","Shivneri");
    	temp.put("height", "3500ft");
    	list.add(temp7);
    	HashMap temp8 = new HashMap();
    	temp.put("name","Visapur");
    	temp.put("height", "3038ft");
    	list.add(temp8);

    }
    Reply ↓
      2. ykyuen Post author

        Hi Paresh,

        Thanks for your link and i am sure it would be useful for others. =)

        Regards,
        Kit

  18. RTAC

    Hi, I have a question regarding the handling of the listview, I have a project where I show a set of objects (images, text, buttons) but from what I suppose I have a set of 3 buttons in the listview and I want to click on any buttons and these give me back an event, but I see the contents of the listview methods do not work, when clicking on them fails. I used simpleadapter and I tried to take the focus listview below shows the code.

    public class Framemain extends ListActivity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    
        int n=6;
        String []titulo = new String[n];
        String []genero = new String[n];
        String []descripcion = new String[n];
        String []paisorigen = new String[n];
        String []lenguaje = new String[n];
        String []director = new String[n];
        String []actores = new String[n];
        String []clasificacion = new String[n];
        String []duracion = new String[n];
        String []paginaweb = new String[n];
        String []cine = new String[n];
       int[]imagenes= new int[n];
        String[]valoraciones= new String [n];
        
    imagenes[0]=R.drawable.p1;
    imagenes[1]=R.drawable.p2;
    imagenes[2]=R.drawable.p3;
    imagenes[3]=R.drawable.p4;
    imagenes[4]=R.drawable.p5;
    imagenes[5]=R.drawable.p6;
    try {
InputStream is = getResources().openRawResource(R.raw.peliculas);
BufferedReader bf= new BufferedReader(new InputStreamReader(is));
    while(bf.ready()){
    	for(int i=0;i<n;i++){
    		titulo[i]=bf.readLine();
    		genero[i]=bf.readLine();
    		descripcion[i]=bf.readLine();
    		paisorigen[i]=bf.readLine();
    		lenguaje[i]=bf.readLine();
    		director[i]=bf.readLine();
    		actores[i]=bf.readLine();
    		clasificacion[i]=bf.readLine();
    		duracion[i]=bf.readLine();
    		paginaweb[i]=bf.readLine();
    		cine[i]=bf.readLine();
    		valoraciones[i]=bf.readLine();
    	}//fin del for
    	}//fin del while
    }//fin del try

    catch (Exception e) {
       Log.v("Error de Exception", "no funco");
      }  
    ArrayList<HashMap> arreglo=new ArrayList<HashMap>();

    for(int i=0;i<n;i++){
    HashMap map=new HashMap();
    map.put("titulo", titulo[i]); 
    map.put("imagen", imagenes[i]); 
    map.put("descripcion", descripcion[i]);
    arreglo.add(map); 
}//map
    
    String[] from={"titulo","imagen","descripcion"}; 
    int[] to={R.id.titulo,R.id.imagenpelicula,R.id.descripcion};
   
    SimpleAdapter adapter=new SimpleAdapter(
                    this.getApplicationContext(),
                    arreglo,
                    R.layout.content,
                    from,
                    to);
    //cambiarimagen();
    
    final ListView l = (ListView)findViewById(R.id.ListView);
    l.setAdapter(adapter);
    
    }

    and this is the main.xml

    and there is the content.xml:

    can you help me ?

    Reply ↓

  19. Pingback: androidtutorialbyal.com » Blog Archive » List View Tutorial For Android

  20. Sourav Mukherjee

    Hi.
    I am geting a erroer ” Cannot cast from View to ListView” for this line of code

    ListView lv= (ListView)findViewById(R.id.listview);

    Plz….can u help me

    Reply ↓
    1. ykyuen Post author

      try to clean the project an build again. if still does not work, can u give me the exception stack trace? and what android sdk are u using?

      Reply ↓
  22. Michael

    Hello! I hope you can help me.
    I have two activities, first is main (with ListView and HashMap) and second is an activity with EditText in it.
    My task is to get string from EditText in second activity and put it on ListView in the first one.
    I know how to use Intents and all that stuff, but I have a little problem. It’s only possible to add one unique item into ListView. For example, when I’m adding second item, I get two identical items. When I’m adding third item, ListView has three same items. All items contain the data of last added item. Here’s some code:

    @Override 
public void onActivityResult(int requestCode, int resultCode, Intent data) {     
  super.onActivityResult(requestCode, resultCode, data); 
  switch(requestCode) { 
    case (STATIC_INTEGER_VALUE) : { 
      if (resultCode == Activity.RESULT_OK) { 
        String Route = data.getStringExtra("route");
        String Destination = data.getStringExtra("destination");
        String Time = data.getStringExtra("time");
        map.put("time", Time);
        map.put("route", Route);
        map.put("destination", Destination);
        fillMaps.add(map);
        SpecialAdapter adapter = new SpecialAdapter(this, fillMaps, R.layout.grid_item, from, to);
        list.setAdapter(adapter);
      } else if (resultCode == Activity.RESULT_CANCELED){
          //Do nothing  
      }
      break;
    } 
  } 
}
    Reply ↓
    1. ykyuen Post author

      how about this

      @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
  super.onActivityResult(requestCode, resultCode, data);
  switch(requestCode) {
    case (STATIC_INTEGER_VALUE) : {
      if (resultCode == Activity.RESULT_OK) {
        String Route = data.getStringExtra("route");
        String Destination = data.getStringExtra("destination");
        String Time = data.getStringExtra("time");
        // create a new map object for every new record
        HashMap<String, String> map = new HashMap<String, String>();
        map.put("time", Time);
        map.put("route", Route);
        map.put("destination", Destination);
        fillMaps.add(map);
        SpecialAdapter adapter = new SpecialAdapter(this, fillMaps, R.layout.grid_item, from, to);
        list.setAdapter(adapter);
      } else if (resultCode == Activity.RESULT_CANCELED){
          //Do nothing
      }
      break;
    }
  }
}
      Reply ↓

  24. Pingback: Burak ÖZKAN » Blog Arşivi » Android – Custom Listview Ayraç Ekleme

  25. ads

    Once the list is loaded,is it possible to fill the remaining space of parent layout with empty list row elements ?

    Reply ↓
    1. ykyuen Post author

      In my example, i used a for loop to fill in the listview

      ...
for(int i = 0; i < 10; i++){
  HashMap<String, String> map = new HashMap<String, String>();
  map.put("rowid", "" + i);
  map.put("col_1", "col_1_item_" + i);
  map.put("col_2", "col_2_item_" + i);
  map.put("col_3", "col_3_item_" + i);
  fillMaps.add(map);
}
...

       

      if you want to fill in the remaining space of the parent layout, you could add more items in the fillMaps object. but it is difficult to get the exact number of rows to fill in the remaining space becoz android phones has varied screen size.

      Reply ↓
      1. Ads

        Yep its really difficult as we have to calculate the height of the listview and list_element height, then we should try filling the list i guess.
        Will post soon if i got solution. Thanks for ur good blog!!!!.

      3. Gaya

        Hi,
        As your example how you can fill with data getting from edittexts using add button with increment rows?
        I can show UI like this,
        TextView1 EditText1
        TextView2 EditText2
        Button1
        ListView with two columns

        Please help me…

      4. ykyuen Post author

        Hi Gaya,

        In my example, i only show some static data in the listview. If you want to allow user to add the listview item, probably you need a sqlite db to store the input data and need a form for getting the user input. The following example should be a nice reference for you.
        Android developers – Notepad Tutorial

        Hope this help.

        Kit

  26. Gautam

    Hi ykyuen,
    I am using a special adapter which extends simpleadapter. In my code I am looping through my collection which is in an ArrayList object. I get the desired items and put them into an hashmap object. Finally I add that hashmap into another arraylist and provide it to the specialadapter, similar to what you have done..Now my PROBLEM is I am getting an “ArrayIndexOutOfBound” error when the code reaches the getView() in the simpleadapter, due to which there is a force close. Now I am not able to figure out which array gets out of bounds…Please clear my confusion..

    Thanking you,
    Gautam.

    Reply ↓
    1. ykyuen Post author

      Maybe you could add some watchers and break points in debug mode and see which variable causes the ArrayIndexOutOfBound error.

      Reply ↓
      1. gautam 
        public class SpecialAdapter extends SimpleAdapter 
{  

  private int[] colors = new int[] { 0x30F0F8FF, 0x60C6E2FF, 0x80B9D3EE, 0x909FB6CD };
  public SpecialAdapter(Context context, List<HashMap> items, int resource, String[] from, int[] to) 
  {  
    super(context, items, resource, from, to);  
  }
  @Override 
  public View getView(int position, View convertView, ViewGroup parent)
  {  
    HashMap hm=(HashMap) super.getItem(position);
    View view = super.getView(position, convertView, parent);  //<==== This the line where I get Arrayindexoutofbounds......
		       
		      
    return view;  
  }

        Now I dont understand why it happens…

      2. ykyuen Post author

        Will it throw the Arrayindexoutofbounds error if you comment the

        //HashMap hm=(HashMap) super.getItem(position);
      3. gautam

        Yes it throws the same even on comment…See I am using the CalendarView and on a particular DAY click I fetch corresponding data from DB, loop it, put it in hashmap and populate it in listview… listview.setAdapter(adapter) also works fine..But when it comes to getView() I dont understand what index postion in the listview goes outOfBounds…..

      4. ykyuen Post author

        I think the problem is now(TYPO: should be NOT) on your SpecialAdapater class.
        does your IDE supports debug perspective which allows you to adding break points and watches on the code and vaiables?

        check the whole error dump, you should be able to find which line of code cause the error.

      5. gautam

        Yes after doing all that Ive came to the conclusion that the line
        ” View view = super.getView(position, convertView, parent); ”
        gives the error… Have you had any hands on using a CalendarView in your app any time…I mean what I am doing might be a very basic thing to do in calendars…Do you have any experience as to how it can be done…???

      6. ykyuen Post author

        O Sorry, i think i have a typo in my previous comment. i mean the problem is NOT on your SpecialAdapater class.

        And i haven’t worked with CalendarView before. Actually i created this example 2 years ago with SDK 1.6. Sorry that i can’t help much.

  27. Neil

    Hi Kit
    I have successfully adapted your code for my project, thanks.
    Now I want to programatically change font size of the text views but I am unable to figure out how to reference them.
    Any suggestions?

    Reply ↓
    1. ykyuen Post author

      you can set the font size by the setTextSize() function.

      or edit the xml as follow.

      <TextView android:id="@+id/item1"
  android:layout_height="fill_parent"
  android:layout_width="wrap_content"
  android:width="20dip"
  android:height="30dip"
  android:textSize="30sp"
 />
      Reply ↓
      1. Neil

        Thanks Kit, I understand the setTextSize() function call, I just can’t work out how to reference the TextView at run time. Everything I have tried returns a null pointer.

    1. ykyuen Post author

      Do you mean AutoCompleteTextView?

      I didn’t quite get what you mean, the list view is for displaying a list of items and the AutoCompleteTextView is for user to enter a value.

      Do you mean letting the user enter a value in the AutoCompleteTextView and then save it to the listview?

      Reply ↓
      1. tee-lek

        Hi
        Yes I mean to AutoCompleteTextView.
        Now i have a value in the AutoCompleteTextView(ArrayList Type) and then save it to the listview?

        Thanks
        (Sorry my language very weakness)

      2. ykyuen Post author

        In that case, you need to collect the user input and save this to a sqlite database.
        i think the following tutorial is useful for you
        Android developers – Notepad Tutorial
        and you could use AutoCompleteTextView when collecting user input.

        The listview shown in this blog post only displays static data. after you could save the user input into database. you should be able to retrieve the data from it and show them in listview.

        hope the above info could help. =)

  29. Abhishek

    I tried all the suggest method here to capture the click event to get the row content and display them in a toast but still no success :( .

    Please help.

    Reply ↓
  31. Phillip

    One thing that is unclear to me: Does Android environment look for a file named grid_item.xml or does it simply use the TextView objects from this file based upon the TextView id’s as they are populated in the Java code?

    Reply ↓

  32. Pingback: listview aus json (serverdata) generieren - Android-Hilfe.de

  33. Pingback: ListView e database - Forum Android Italiano

  34. Machado

    Thanks for the post, simple and clear worth much to my project. looked much like this for example. Thank you strength.

    Reply ↓
  35. Mxx

    I was trying to set percentage by layout width and weight but in grid all is going to append :( please help

    Reply ↓
  36. DanceOnTheBreeze

    Hi, I have managed to put Strings across to the list view xml but how do I get images across? SimpleAdapter adapter = new SimpleAdapter(this, fillMaps, R.layout.grid_item, from, to); – in this bit instead of from and to I have my Strings, but don’t know what type an image should be. Thanks in advance for any help :)

    Reply ↓
  37. Harish

    hi,
    i need to display the multiples colors in list view. like stock market app is coming when ever it is increase it is showing green symbol & red color will come under decrease, how we can do ??please help me out…

    Reply ↓
  38. satya

    i prepared a list ,every item of list also carried one one list,and in second list’s item when i click
    is connect to different activity. how can connect different activity in second list’s item

    Reply ↓
  40. Recca Phan

    I have this code, In the following code i stored all the list data in an array called words[] and attached to listview using simple ArrayAdapter. So how to bring the database instead for the array to display the Search Functionality to ListView:

    public class LookupActivity extends Activity {
 
    // List view
    private ListView lv;
 
    // Listview Adapter
    ArrayAdapter adapter;
 
    // Search EditText
    EditText inputSearch;
 
    // ArrayList for Listview
    ArrayList&lt;HashMap&gt; productList;
    DatabaseHandler mDB;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.maintim);
 
        // Listview Data
        String words[] ={"Kungfu","Long"};
 
        lv = (ListView) findViewById(R.id.list_view);
        inputSearch = (EditText) findViewById(R.id.inputSearch);
 
        // Adding items to listview
        adapter = new ArrayAdapter(this, R.layout.list_item, R.id.word, words);
        lv.setAdapter(adapter);
 
        /**
         * Enabling Search Filter
         * */
        inputSearch.addTextChangedListener(new TextWatcher() {
 
            public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                // When user changed the Text
                LookupActivity.this.adapter.getFilter().filter(cs);
            }
 
            public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                    int arg3) {
                // TODO Auto-generated method stub
 
            }
 
            public void afterTextChanged(Editable arg0) {
                // TODO Auto-generated method stub
            }
        });
    }
}
    Reply ↓
      2. ykyuen Post author

        sure you can~ but i haven’t done any android development for a long time. i am still on the sdk 1.6 level. =P

      5. Recca Phan

        thanks so much ^^ now i have a problem…i had bring the database to display to ListView, but i wanna search it. Example: when you type “a” will show…
        Apply
        Cat
        (…)
        i do it but have a problem that i don’t know what it is :) ), can you help me???
        This is code:

        import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class AndroidSQLite extends Activity {

private SQLiteAdapter mySQLiteAdapter;
//Search EditText
EditText inputSearch;

//Listview Adapter
ArrayAdapter adapter;

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
      ListView listContent = (ListView)findViewById(R.id.contentlist);
      inputSearch = (EditText) findViewById(R.id.inputSearch);
    
      /*
       *  Create/Open a SQLite database
       *  and fill with dummy content
       *  and close it
       */
      
      
      mySQLiteAdapter = new SQLiteAdapter(this);
      mySQLiteAdapter.openToWrite();
      mySQLiteAdapter.deleteAll();

      mySQLiteAdapter.insert("Apply");
      mySQLiteAdapter.insert("Boy");
      mySQLiteAdapter.insert("Cat");
      mySQLiteAdapter.insert("Dog");
      mySQLiteAdapter.insert("Egg");
      mySQLiteAdapter.insert("Fish");
      mySQLiteAdapter.insert("Girl");
      mySQLiteAdapter.insert("Hand");
      mySQLiteAdapter.insert("Ice-scream");
      mySQLiteAdapter.insert("Jet");
      mySQLiteAdapter.insert("Kite");
      mySQLiteAdapter.insert("Lamp");
      mySQLiteAdapter.insert("Man");
      mySQLiteAdapter.insert("Nose");
      mySQLiteAdapter.insert("Orange");
      mySQLiteAdapter.insert("Pen");
      mySQLiteAdapter.insert("Queen");
      mySQLiteAdapter.insert("Rain");
      mySQLiteAdapter.insert("Sugar");
      mySQLiteAdapter.insert("Tree");
      mySQLiteAdapter.insert("Umbrella");
      mySQLiteAdapter.insert("Van");
      mySQLiteAdapter.insert("Water");
      mySQLiteAdapter.insert("X'mas");
      mySQLiteAdapter.insert("Yellow");
      mySQLiteAdapter.insert("Zoo");
    
      mySQLiteAdapter.close();

      /*
       *  Open the same SQLite database
       *  and read all it's content.
       */
      mySQLiteAdapter = new SQLiteAdapter(this);
      mySQLiteAdapter.openToRead();

      Cursor cursor = mySQLiteAdapter.queueAll();
      startManagingCursor(cursor);

      String[] from = new String[]{SQLiteAdapter.KEY_CONTENT};
      int[] to = new int[]{R.id.text};

      SimpleCursorAdapter cursorAdapter =
       new SimpleCursorAdapter(this, R.layout.row, cursor, from, to);

      listContent.setAdapter(cursorAdapter);
    
      mySQLiteAdapter.close();
      
      /**
       * Enabling Search Filter
       * */
      inputSearch.addTextChangedListener(new TextWatcher() {

          public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
              // When user changed the Text
              AndroidSQLite.this.adapter.getFilter().filter(cs);
          }

          public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                  int arg3) {
              // TODO Auto-generated method stub

          }

          public void afterTextChanged(Editable arg0) {
              // TODO Auto-generated method stub
          }
      });

    
  }
}
  42. Rohit Chandekar

    Its Rohi, I have added searchView on the same bt when i am trying to give input it will shows duplicate entry after i entering text as i have ” rc1 rohit1 ” when i put search for “r” then it will show me duplicate entry at that time …
    Please help me out

    Reply ↓
  43. Rohit Chandekar

    As u provide link for search , it is applicable for only one textView , bt when number of textView increases it will check in all textView thats why , above problem occurs…..

    Reply ↓

Leave a Reply

Fill in your details below or click an icon to log in:

Gravatar
WordPress.com Logo

You are commenting using your WordPress.com account. ( Log Out / Change )

Twitter picture

You are commenting using your Twitter account. ( Log Out / Change )

Facebook photo

You are commenting using your Facebook account. ( Log Out / Change )

Cancel

Connecting to %s