ListView的使用

在用ListView时，要搭配ArrayAdapter或者SimpleCursorAdapter,将视图与后台数据关联起来

package com.example.activity_and_service;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ListView;
import android.widget.ArrayAdapter;
import android.content.Context;
import android.widget.AdapterView;
import android.widget.Adapter;
import android.widget.AdapterView.OnItemClickListener;

public class MainActivity extends Activity{

  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);

      final ListView listView = (ListView)findViewById(R.id.listview);
      String[] values = new String[] {"Android", "iPhone", "windowsMobile",
    		  "Blackberry", "WebOS", "Ubuntu", "Window7", "Max OS X",
    		  "Linux", "OS/2", "Ubuntu", "Window7", "Max OS X", "Linux",
    		  "OS/2", "Ubuntu", "Windows7", "Max OS X", "Linux", "os/2",
    		  "Android", "iPhone", "WindowsMobile"};
      
      final ArrayList<String> list = new ArrayList<String>();
      for (int i = 0; i < values.length; i++) list.add(values[i]);
      
      final StableArrayAdapter adapter = new StableArrayAdapter(this, android.R.layout.simple_list_item_1, list);
      
      listView.setAdapter(adapter);
      
      listView.setOnItemClickListener(new AdapterView.OnItemClickListener() 
      {
    	  public void onItemClick(AdapterView<?> parent, final View view, int position, long id)
    	  {
    		  final String item = (String)parent.getItemAtPosition(position);
    		  
    		  view.animate().setDuration(2000).alpha(0);
 
    		  
    		  
    	  }
      });
      
  }
  
  private class StableArrayAdapter extends ArrayAdapter<String>
  {
	  HashMap<String, Integer> mIdMap = new HashMap<String, Integer>();
	  
	  public StableArrayAdapter(Context context, int textViewResourceId, List<String> objects)
	  {
		  super(context, textViewResourceId, objects);
		  for (int i = 0; i < objects.size(); i++) {
			  mIdMap.put(objects.get(i), i);
		  }
	  }
	  
	  public long getItemId(int position)
	  {
		  String item = getItem(position);
		  
		  return mIdMap.get(item);
	  }
	  
	  public boolean hasStableIds()
	  {
		  return true;
	  }
  }