MySearchableActivity.java

package com.mailssenger.search;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import android.app.Activity;
import android.app.SearchManager;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.provider.SearchRecentSuggestions;
import android.support.v4.view.MenuItemCompat;
import android.support.v7.widget.SearchView;
import android.text.TextUtils;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.google.gson.Gson;
import com.mailssenger.CommonApplication;
import com.mailssenger.R;
import com.mailssenger.activity.BaseActivity;
import com.mailssenger.activity.ChatActivity;
import com.mailssenger.contacts.CharacterParser;
import com.mailssenger.contacts.ClearEditText;
import com.mailssenger.contacts.PinyinComparator;
import com.mailssenger.contacts.SideBar;
import com.mailssenger.contacts.SideBar.OnTouchingLetterChangedListener;
import com.mailssenger.contacts.SortAdapter;
import com.mailssenger.contacts.UserSortModel;
import com.mailssenger.db.MsgDB;
import com.mailssenger.db.UserDB;
import com.mailssenger.model.UserModel;
import com.mailssenger.util.L;
import com.mailssenger.util.SharedPreferencesUtil;

public class MySearchableActivity extends BaseActivity implements
		SearchView.OnQueryTextListener {

	// 初始化工具
	CommonApplication mApplication;
	private SharedPreferencesUtil mSpUtil;
	private UserDB mUserDB;
	private MsgDB mMsgDB;
	private MediaPlayer mMediaPlayer;
	private Gson mGson;

	// 联系人相关
	private ListView sortListView;
	private SideBar sideBar;
	private TextView dialog;
	private SortAdapter adapter;
	private ClearEditText mClearEditText;
	// 联系人相关工具
	private CharacterParser characterParser;
	private List<UserSortModel> SourceDateList;
	// 根据拼音来排列ListView里面的数据类
	private PinyinComparator pinyinComparator;

	//搜索监听
	private SearchView mSearchView;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		this.context = this;
		super.onCreate(savedInstanceState);
		mApplication = CommonApplication.getInstance();
		mSpUtil = mApplication.getSpUtil();
		mGson = mApplication.getGson();
		mUserDB = mApplication.getUserDB();
		mMsgDB = mApplication.getMsgDB();

		setContentView(R.layout.fragment_contacts);
		sideBar = (SideBar) findViewById(R.id.contacts_sidebar);
		dialog = (TextView) findViewById(R.id.contacts_dialog);
		sortListView = (ListView) findViewById(R.id.contacts_listview);
		
		
		
		blank_search();

		handleIntent(getIntent());
	}

	@Override
	protected void onNewIntent(Intent intent) {

		handleIntent(intent);
	}

	private void blank_search() {
		// 实例化汉字转拼音类
		characterParser = CharacterParser.getInstance();
		pinyinComparator = new PinyinComparator();

		SourceDateList = filledData();
		// 根据a-z进行排序源数据
		Collections.sort(SourceDateList, pinyinComparator);
		adapter = new SortAdapter(this, SourceDateList);
		sortListView.setAdapter(adapter);

		sortListView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				L.d("hello");
				String email = ((UserSortModel) adapter.getItem(position))
						.getEmail();
				L.d("emial is " + email);
				UserModel u = (UserModel) mUserDB.getById(email);
				L.d(u.toString());
				mMsgDB.clearNewCount(u.getEmail());// 新消息置空

				Intent toChatIntent = new Intent(context, ChatActivity.class);
				toChatIntent.putExtra("user", u);
				startActivity(toChatIntent);

				// 这里要利用adapter.getItem(position)来获取当前position所对应的对象
				Toast.makeText(context,
						((UserSortModel) adapter.getItem(position)).getName(),
						Toast.LENGTH_SHORT).show();
				Toast.makeText(context,
						((UserSortModel) adapter.getItem(position)).getEmail(),
						Toast.LENGTH_SHORT).show();
			}
		});

		sideBar.setTextView(dialog);

		// 设置右侧触摸监听
		sideBar.setOnTouchingLetterChangedListener(new OnTouchingLetterChangedListener() {

			@Override
			public void onTouchingLetterChanged(String s) {
				// 该字母首次出现的位置
				int position = adapter.getPositionForSection(s.charAt(0));
				if (position != -1) {
					sortListView.setSelection(position);
				}

			}
		});
	}

	private void handleIntent(Intent intent) {
		String query = intent.getStringExtra(SearchManager.QUERY);
		SearchRecentSuggestions suggestions = new SearchRecentSuggestions(this,
				SearchSuggestionProvider.AUTHORITY,
				SearchSuggestionProvider.MODE);
		suggestions.saveRecentQuery(query, null);

		if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
			if (query != null && !query.equals("")) {
				filterData(query);
			}

			Log.e("hello", "search!!!");
			// use the query to search your data somehow
		}
	}

	/**
	 * 为ListView填充数据
	 * 
	 * @param date
	 * @return
	 */
	private List<UserSortModel> filledData() {

		// get all the user
		List<UserModel> mUserList = mUserDB.getAll();

		List<UserSortModel> mSortList = new ArrayList<UserSortModel>();
		if (mUserList.size() > 0) {
			for (int i = 0; i < mUserList.size(); i++) {

				UserSortModel sortModel = new UserSortModel();
				sortModel.setName(mUserList.get(i).getNickName());
				sortModel.setEmail((mUserList.get(i).getEmail()));

				if (sortModel.getName() == null) {
					sortModel.setSortLetters("#");
				} else {
					// 汉字转换成拼音
					String pinyin = characterParser.getSelling(sortModel
							.getName());
					String sortString = pinyin.substring(0, 1).toUpperCase();

					// 正则表达式，判断首字母是否是英文字母
					if (sortString.matches("[A-Za-z]")) {
						sortModel.setSortLetters(sortString.toUpperCase());
					} else {
						sortModel.setSortLetters("#");
					}
				}

				mSortList.add(sortModel);
			}
		}

		return mSortList;
	}

	/**
	 * 根据输入框中的值来过滤数据并更新ListView
	 * 
	 * @param filterStr
	 */
	private void filterData(String filterStr) {
		List<UserSortModel> filterDateList = new ArrayList<UserSortModel>();

		if (TextUtils.isEmpty(filterStr)) {
			filterDateList = SourceDateList;
		} else {
			filterDateList.clear();
			for (UserSortModel sortModel : SourceDateList) {
				String name = sortModel.getName();
				if (name.indexOf(filterStr.toString()) != -1
						|| characterParser.getSelling(name).startsWith(
								filterStr.toString())) {
					filterDateList.add(sortModel);
				}
			}
		}

		// 根据a-z进行排序
		Collections.sort(filterDateList, pinyinComparator);
		adapter.updateListView(filterDateList);
	}

	@Override
	public boolean onQueryTextChange(String arg0) {
		// TODO Auto-generated method stub
		filterData(arg0);
		return false;
	}

	@Override
	public boolean onQueryTextSubmit(String arg0) {
		filterData(arg0);
		return false;
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		
		getMenuInflater().inflate(R.menu.search, menu);

		MenuItem searchItem = menu.findItem(R.id.action_search);
		mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
		mSearchView.setOnQueryTextListener(this);

//		 SearchManager searchManager = (SearchManager)
//		 getSystemService(Context.SEARCH_SERVICE);		
//		 MenuItem searchItem = menu.findItem(R.id.action_search);
//		 mSearchView = (SearchView) MenuItemCompat.getActionView(searchItem);
//		 mSearchView.setSearchableInfo(
//		 searchManager.getSearchableInfo(getComponentName()));
		 
		//get focus for the search field
		mSearchView.setIconified(false);

		return true;
	}

	/*
	 * add action for menu item is clicked (non-Javadoc)
	 * 
	 * @see android.app.Activity#onOptionsItemSelected(android.view.MenuItem)
	 */
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {

		case android.R.id.home:
			context.finish();
		}
		return super.onOptionsItemSelected(item);
	}

}