FriendsActivity.java

package com.talk.demo.share;

import android.app.Activity;
import android.content.AsyncQueryHandler;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import com.talk.demo.R;
import com.talk.demo.ui.QuickAlphabeticBar;

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

public class FriendsActivity extends Activity {
	private static String TAG = "FriendsActivity";
	private ContactListAdapter adapter;
	private ListView contactList;
	private List<ContactBean> list;
	private AsyncQueryHandler asyncQueryHandler; 
	private QuickAlphabeticBar alphabeticBar; 

	private Map<Integer, ContactBean> contactIdMap = null;

	private String friendName = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_friends);
		contactList = (ListView) findViewById(R.id.contact_list);
		alphabeticBar = (QuickAlphabeticBar) findViewById(R.id.fast_scroller);
		contactList.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				ContactBean valueContent = (ContactBean)parent.getItemAtPosition(position);
				Log.d(TAG, "content : "+valueContent.getDesplayName());
				ImageView choose = (ImageView)view.findViewById(R.id.choose);
				TextView name = (TextView)view.findViewById(R.id.name);
				choose.setImageResource(R.drawable.ic_menu_done_holo_dark);
				friendName = name.getText().toString();
				//passChooseName(friendName);

			}
			
		});
		asyncQueryHandler = new MyAsyncQueryHandler(getContentResolver());
		init();

	}
	
	@Override
	protected void onPause() {
	    super.onPause();

	}
	/*
	private void passChooseName(String name) {
	    Log.d(TAG, "pass choose name");
        if(name != null) {
            Intent resultIntent = new Intent();
            Log.d(TAG, "friend name : "+name);
            resultIntent.putExtra("friend_name", name);
            this.setResult(Activity.RESULT_OK, resultIntent);
            finish();
        }
	}
	*/
	
	private void init() {
		Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
		String[] projection = { ContactsContract.CommonDataKinds.Phone._ID,
				ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,
				ContactsContract.CommonDataKinds.Phone.DATA1, "sort_key",
				ContactsContract.CommonDataKinds.Phone.CONTACT_ID,
				ContactsContract.CommonDataKinds.Phone.PHOTO_ID,
				ContactsContract.CommonDataKinds.Phone.LOOKUP_KEY };
		asyncQueryHandler.startQuery(0, null, uri, projection, null, null,
				"sort_key COLLATE LOCALIZED asc");

	}

	private class MyAsyncQueryHandler extends AsyncQueryHandler {

		public MyAsyncQueryHandler(ContentResolver cr) {
			super(cr);
		}

		@Override
		protected void onQueryComplete(int token, Object cookie, Cursor cursor) {
			if (cursor != null && cursor.getCount() > 0) {
				contactIdMap = new HashMap<Integer, ContactBean>();
				list = new ArrayList<ContactBean>();
				cursor.moveToFirst();
				for (int i = 0; i < cursor.getCount(); i++) {
					cursor.moveToPosition(i);
					String name = cursor.getString(1);
					String number = cursor.getString(2);
					String sortKey = cursor.getString(3);
					int contactId = cursor.getInt(4);
					Long photoId = cursor.getLong(5);
					String lookUpKey = cursor.getString(6);

					if (contactIdMap.containsKey(contactId)) {
					} else {
						ContactBean contact = new ContactBean();
						contact.setDesplayName(name);
						contact.setPhoneNum(number);
						contact.setSortKey(sortKey);
						contact.setPhotoId(photoId);
						contact.setLookUpKey(lookUpKey);
						list.add(contact);

						contactIdMap.put(contactId, contact);
					}
				}
				if (list.size() > 0) {
					setAdapter(list);
				}
			}

			super.onQueryComplete(token, cookie, cursor);
		}

	}

	private void setAdapter(List<ContactBean> list) {
		adapter = new ContactListAdapter(this, list, alphabeticBar);
		contactList.setAdapter(adapter);
		alphabeticBar.init(FriendsActivity.this);
		alphabeticBar.setListView(contactList);
		alphabeticBar.setHight(alphabeticBar.getHeight());
		alphabeticBar.setVisibility(View.VISIBLE);
	}
}