Android Open Source - SensorModelDataCollector Wi Fi Scan Result Adapter

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

Java Source Code

package com.clarkson.sensormodeldatacollector;
// w ww . j  av a2  s  . c o  m
import java.util.ArrayList;

import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

  /********* WiFiScanResultAdapter class extends with BaseAdapter and implements with OnClickListener ************/
  public class WiFiScanResultAdapter extends BaseAdapter implements OnClickListener {
            
           /*********** Declare Used Variables *********/
           private Activity activity;
           private ArrayList<WiFiScanResult> data;
           private static LayoutInflater inflater=null;
           public Resources res;
           WiFiScanResult tempValues=null;
           int i=0;
            public boolean mAreItemsSelectable = false;
           /*************  CustomAdapter Constructor *****************/
           public WiFiScanResultAdapter(Activity a, ArrayList<WiFiScanResult> d,Resources resLocal) {
                
                  /********** Take passed values **********/
                   activity = a;
                   data=d;
                   res = resLocal;
                
                   /***********  Layout inflator to call external xml layout () ***********/
                    inflater = ( LayoutInflater )activity.
                                                getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                
           }
        
           public void enableItemsSelection()
           {
             mAreItemsSelectable = true;
           }
           
           public void disableItemsSelection()
           {
             mAreItemsSelectable = false;
           }
           
           /******** What is the size of Passed Arraylist Size ************/
           public int getCount() {
                
               if(data.size()<=0)
                   return 1;
               return data.size();
           }
        
           public Object getItem(int position) {
               return position;
           }
        
           public long getItemId(int position) {
               return position;
           }
            
           
           @Override
           public boolean areAllItemsEnabled()
                           {

           return mAreItemsSelectable;

           }
           
           /********* Create a holder Class to contain inflated xml file elements *********/
           public static class ViewHolder{
                
               public TextView text_rss;
               //public TextView text_freq;
               public TextView text_ssid;
        
           }
        
           /****** Depends upon data size called for each row , Create each ListView row *****/
           public View getView(int position, View convertView, ViewGroup parent) {
                
               View vi = convertView;
               ViewHolder holder;
                
               if(convertView==null){
                    
                   /****** Inflate tabitem.xml file for each row ( Defined below ) *******/
                   vi = inflater.inflate(R.layout.tabitem, null);
                    
                   /****** View Holder Object to contain tabitem.xml file elements ******/
   
                   holder = new ViewHolder();
                   holder.text_ssid = (TextView) vi.findViewById(R.id.text_ssid);
                   holder.text_rss=(TextView)vi.findViewById(R.id.text_rss);
                    
                  /************  Set holder with LayoutInflater ************/
                   vi.setTag( holder );
               }
               else 
                   holder=(ViewHolder)vi.getTag();
                
               if(data.size()<=0)
               {
                   holder.text_ssid.setText("No Data");
                    
               }
               else
               {
                   /***** Get each Model object from Arraylist ********/
                   tempValues=null;
                   tempValues = ( WiFiScanResult ) data.get( position );
                    
                   /************  Set Model values in Holder elements ***********/
   
                    holder.text_ssid.setText( "SSID: " + tempValues.getSSID());
                    holder.text_rss.setText( "RSS: " +tempValues.getRSS() + " dBm" );
                     
                    /******** Set Item Click Listener for LayoutInflater for each row *******/
   
                    vi.setOnClickListener(new OnItemClickListener( position ));
               }
               return vi;
           }
            
           @Override
           public void onClick(View v) {
                   Log.v("CustomAdapter", "=====Row button clicked=====");
           }
            
           /********* Called when Item click in ListView ************/
           private class OnItemClickListener  implements OnClickListener{           
               private int mPosition;
                
               OnItemClickListener(int position){
                    mPosition = position;
               }
                
               @Override
               public void onClick(View arg0) {
   
          
                 WiFiScanActivity sct = (WiFiScanActivity)activity;
   
                /****  Call  onItemClick Method inside CustomListViewAndroidExample Class ( See Below )****/
   
                   sct.onItemClick(mPosition);
               }               
           }   
       }

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