Custom Controls-android list grouping and letter navigation

Custom Controls-android list grouping and letter navigation

With the refactoring of the above two articles, it is very easy to refactor the ListView group list to a custom control. You only need to put the initialization operation in the constructor of the custom control. The restructured custom control is based on the annotation refactoring in the previous article.

Basic Structure

First, paste the code structure of the activity after reconstruction in the previous article. The implementation of relevant methods have been posted in the previous two articles.

Paste the structure of the restructured View. It can be seen that both structures are similar. The difference is that there is an abstract method getDataList () in the above activity, but not below, but there is an ILoadRulerData ILoadData interface. Load data.

In the custom View, the initdata () method in the activity is changed to loaddata () for the data to be loaded after the active call. <喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> VcD4KPHA + PC9wPgo8cD7W2Lm5uvO7 + bG + expires + ytfPyMrHyv2 + 3bzT1Ni907/ao7o8L3A + expires = "brush: java;"> public interface ILoadRulerData {Public List GetDataList ();}

Then the basic code of the custom view is as follows:

/*** @ Description: You need to call setiLoadData first, set the interface for obtaining data, and then call the loadData Method */public class RulerView
 
  
Extends LinearLayout {private View baseView; private TextView noDataView; private TextView RulerTag; private ProgressBarWithText progress; private ListView listView; private RulerWidget r.pdf; private ILoadRulerData
  
   
ILoadData; private List
   
    
OriginalList; public List
    
     
> DealedList; private HashMap
     
      
TagLocation = new HashMap
      
        (); Private RulerAdapter
       
         RulerAdapter; public RulerView (Context context) {super (context); init (context);} public RulerView (Context context, AttributeSet attrs) {super (context, attrs ); init (context);} public RulerView (Context context, AttributeSet attrs, int defStyle) {super (context, attrs); init (context);}/*** @ Description: set the data loading interface * @ param * @ return void */public void setiLoadData (ILoadRulerData
        
          ILoadData) {this. iLoadData = iLoadData;} private void init (Context context) {baseView = LayoutInflater. from (context ). inflate (R. layout. g_rw, null); noDataView = (TextView) baseView. findViewById (R. id. g_base_list_nodata); RulerTag = (TextView) baseView. findViewById (R. id. g_ruler_tag); progress = (ProgressBarWithText) baseView. findViewById (R. id. g_base_progressbar_withtext); listView = (ListView) ba SeView. findViewById (R. id. g_base_list); rbytes = (RulerWidget) baseView. findViewById (R. id. g_rss); progress. setVisibility (View. VISIBLE); RulerTag. setVisibility (View. GONE); noDataView. setVisibility (View. GONE); listView. setVisibility (View. GONE); rloud. setVisibility (View. GONE); addView (baseView, LayoutParams. MATCH_PARENT, LayoutParams. WRAP_CONTENT);} public void loadData () {new getdataasytask(cmd.exe cu Te ();}..... }
        
       
      
     
    
   
  
 

Test layout

 
        
     <******.ruler.view.RulerView       android:id="@+id/test_ruler_view_id"       android:layout_width="match_parent"       android:layout_height="wrap_content"       />
 

Activity

public class TestViewActivity extends Activity{           private RulerView
 
   rulerView;     @Override    protected void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.test_ruler_view);        rulerView = (RulerView
  
   ) findViewById(R.id.test_ruler_view_id);        rulerView.setiLoadData(new ILoadRulerData
   
    () {                     @Override           public List
    
      getDataList() {                           return new TestAnnnoDao().getBoList();           }       });        rulerView.loadData();          }}
    
   
  
 

This series is complete.