PUBLIC Class MainAICTIVITITITY Extends AppComPatactivity { 

     @Override 
     Protected void onCreate (Bundle Savedinstancestate) { 
         Super.Oncreate (Savedinstancestate); 
         setContentView (r.Layout.activity_main); 
         // 1 Find the control we care about 
         ListView lv = (listview) FindViewByid (R.id.LV); 
         // Set the data adapter 
         lv.setadapter (New MyAdapter ()); 
     } 

     Private Class MyAdapter Extends Baseadapter { 

         @Override 
         public int getCount () { 
             Return 7; 
         } 

         @Override 
         Public Object GetITITEM (Int Position) { 
             Return null; 
         } 

         @Override 
         Public Long getItemid (int position) { 
             Return 0; 
         } 

         @Override 
         Public View GetView (Int Position, View ConvertView, ViewGroup Parent) {{ 
             // 1 Find a way to convert the layout we defined into a view object 
             View view; 
             if (convertView == null) { 
                 /*Create a new View object, you can convert a layout resource into a View object by a pitch 
                     Resource is the layout file we define 
                     1. Get the pitch service 
                     view = view.inflate (getApplicationContext (), R.Layout.item, null); 
                     2. Get the pitch service 
                     View = layoutinflator.from (getApplicationContext ()). Inflate (R.Layout.item, Null); 
                     */ 
                 // 3. Get the airplane service 
                 Layoutinflator inflationer = (layoutinflaater) getSystemService (layout_inflator_service); 
                 View = Inflater.inflate (R.Layout.item, NULL); 
             } else { 
                 // Reuse historical cache objects 
                 view = convertView; 
             } 
             Return view; 
         } 
     } 
 }