Use listview to display data

1. Define item first

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  = "Wrap_content"  >  
  <  Textview
  Android: layout_width  = "80dip"  
Android: layout_height  = "Wrap_content"  
Android: ID  = "@ + ID/personid"  
  />  
 <  Textview
  Android: layout_width  = "100dip"  
Android: layout_height  = "Wrap_content"  
Android: ID  = "@ + ID/name"  
  />  
  <  Textview
  Android: layout_width  = "Fill_parent" 
Android: layout_height  = "Wrap_content"  
Android: ID  = "@ + ID/amount"  
  />  
  </  Linearlayout  > 

2. Bind the data to the listview through the adapter, and click a row of data to display the number

Method 1:

Method 1

 List  <  Hashmap <  String, Object  >  Data  =  New  Arraylist  <  Hashmap  <  String, Object  >  ();
  For  (Person: Persons ){
Hashmap  < String, Object  >  Hashmap  =  New  Hashmap  <  String, Object  >  ();
Hashmap. Put (  "  ID  "  , Person. getpersonid ());
Hashmap. Put (  "  Name "  , Person. getname ());
Hashmap. Put (  "  Amount  "  , Person. getamount ());
Data. Add (hashmap );
}

Simpleadapter Adapter  =  New  Simpleadapter (  This  , Data, R. layout. item,  New  String [] {  "  ID "  ,  "  Name  "  ,  "  Amount  "  },  New     Int  [] {R. Id. personid, R. Id. Name, R. Id. Amount });
Listview. setadapter (adapter );
Listview. setonitemclicklistener (  New Onitemclicklistener (){
@ Override
  Public     Void  Onitemclick (adapterview  <?>  Parent, view,
  Int  Position,  Long  ID ){
Listview mylistview  =  (Listview) parent;
Hashmap  < String, Object  >  Item  =  (Hashmap  <  String, Object  >  ) Mylistview. getitematposition (position );
Toast. maketext (dbactivity.  This  , Item. Get (  "  ID  " ). Tostring (), Toast. length_short). Show ();
}

}); 

Method 2: Use a cursor

Method 2

 Cursor cursor  =  Personservice. getcursor (  0  ,  15  );
  //  The primary key must be _ ID in the field to design the table.  
  Simplecursoradapter cursoradapter  = New  Simplecursoradapter (  This  , R. layout. Item, cursor,  New  String [] {  "  _ Id  "  ,  "  Name  "  ,  "  Amount  " },  New     Int  [] {R. Id. personid, R. Id. Name, R. Id. Amount });
Listview. setadapter (cursoradapter );
Listview. setonitemclicklistener (  New  Onitemclicklistener (){

  /**  
* Parent: The currently clicked listview object
* View the currently clicked entries
  */  
@ Override
  Public    Void  Onitemclick (adapterview  <?>  Parent, view,
  Int  Position,  Long  ID ){
Listview mylistview  =  (Listview) parent;
Cursor data  =  (Cursor) mylistview. getitematposition (position );  //  Move cursor by location  
   Int  M  =  Data. getint (data. getcolumnindex (  "  _ Id  "  ));
Toast. maketext (dbactivity.  This  , String. valueof (M), Toast. length_short). Show ();
}

});