Introduction to Android Development (13) Special Fragment 13.1 listfragment

Listframgent is a fragment containing ListView that displays a range of information through a data source (array or cursor). Listfragment is very useful, like RSS, may display a list on the left, the right to display the selected list of the corresponding content.

You can create a Listfragment object by inheriting listfragment. The following shows how to use Listfragment.

1. Create a project: Listfragmentexample.

2. Code in the Main.xml.

<?xml version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=     
"http://schemas.android.com/apk/" Res/android " 
    android:layout_width=" fill_parent " 
    android:layout_height=" fill_parent " 
    android:o" rientation= "Horizontal" >     
         
<fragment  
    android:name= "Net.manoel.ListFragmentExample.Fragment1" 
    Android:id= "@+id/fragment1" 
    android:layout_weight= "0.5" 
    android:layout_width= "0DP" 
    android:layout _height= "200DP"/>     
         
<fragment  
    android:name= "Net.manoel.ListFragmentExample.Fragment1" 
    Android:id= "@+id/fragment2" 
    android:layout_weight= "0.5" 
    android:layout_width= "0DP" 
    android: layout_height= "300DP"/>     
         
</LinearLayout>

3. Under Re/layout, create a new file: Fragment1.xml.

?

XML version= "1.0" encoding= "Utf-8"?> <linearlayout xmlns:android=     
"http://schemas.android.com/apk/res/" Android " 
    android:orientation=" vertical " 
    android:layout_width=" fill_parent " 
    android:layout_height=" Fill_parent ">     
             
    <listview  
        android:id=" "@id/android:list" 
        android:layout_width= "Match_parent" 
        android:layout_height= "match_parent"                
        android:layout_weight= "1" 
        android:drawselectorontop= false "/>     
                                        
</LinearLayout>

4, under the package path to create a new class: Fragment1.java.

public class Fragment1 extends Listfragment {string[] presidents = {"Dwight D. Eisenhower",     
        "John F. Kennedy", "Lyndon B Johnson", "Richard Nixon", "Gerald Ford",     
        "Jimmy Carter," "Ronald Reagan," "George H. W. Bush", "Bill Clinton,"     
         
    "George W. Bush", "Barack Obama"};  @Override public View Oncreateview (layoutinflater inflater, ViewGroup container, Bundle savedinstancestate)     
    {return inflater.inflate (R.layout.fragment1, container, false); @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedins     
        Tancestate); Setlistadapter (New arrayadapter<string> (getactivity), Android.     
    R.layout.simple_list_item_1, Presidents)); } public void OnlistitemClick (ListView parent, View v, int position, long id) {Toast.maketext (getactiv     
    ity (), "You have selected" + presidents[position], toast.length_short). Show (); }       
         
}