使用searchView搜索ListView的关键字

这几天公司提出了一需求，要做一个android抢单的app，其中需要一个搜索功能，研究了一阵，现在记录一下。界面xml代码，注意其中的searchView控件和ListView控件，注意：searchView需要api至少是android3.0

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/main_tab_weixin"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#ffefebe7"
    android:orientation="vertical" >

    <RelativeLayout
        android:id="@+id/title"
        android:layout_width="fill_parent"
        android:layout_height="45dp"
        android:background="@drawable/title_bar"
        android:gravity="center_vertical" >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:text="可抢工单"
            android:textColor="#ffffff"
            android:textSize="20sp" />
    </RelativeLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/robjob_line" >

        <Button
            android:id="@+id/bt_search_condition"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="3dp"
            android:layout_weight="0"
            android:text="搜索条件" />

        <Button
            android:id="@+id/bt_Refresh"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="3dp"
            android:layout_weight="0"
            android:text="刷新" />

        <SearchView
            android:id="@+id/search_view"
            style="@style/my_edittext_style"
            android:layout_width="wrap_content"
            android:layout_height="40dp"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="10dp"
            android:iconifiedByDefault="false"
            android:inputType="textFilter"
            android:queryHint="搜索项目名称" >
        </SearchView>
    </LinearLayout>

    <ListView
        android:id="@+id/lv_robjob"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:background="#ffefebe7"
        android:divider="@null" >
    </ListView>

</LinearLayout>

接下来将是主要的代码，但是限于仅处于开发初始阶段，所以数据都是模拟的，这篇文章主要介绍的也不是处理数据，请大家见谅。

public class RobJobFragment extends Fragment implements OnQueryTextListener {
	private View mMainView;
	private ListView listView;
	private SearchView searchView;
	private Button bt_search_condition, bt_Refresh;
	private List<String[]> list;
	private RobJobListAdapter adapter;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		LayoutInflater inflater = getActivity().getLayoutInflater();
		mMainView = inflater.inflate(R.layout.main_tab_robjob,
				(ViewGroup) getActivity().findViewById(R.id.tabpager), false);
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		searchView = (SearchView) mMainView.findViewById(R.id.search_view);
		bt_search_condition = (Button) mMainView
				.findViewById(R.id.bt_search_condition);
		bt_Refresh = (Button) mMainView.findViewById(R.id.bt_Refresh);
		//刷新列表的方法
		bt_Refresh.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				list.clear();
				list.add(new String[] { "1", "监管报送系统", "需求分析",
						"银行监管报送系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "3个月", "2000元",
						"2014-02-28","18643328574" });
				list.add(new String[] { "2", "绩效考核系统", "详细设计",
						"绩效考核系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "6个月", "3000元",
						"2014-03-01" ,"18744993322"});
				list.add(new String[] { "3", "濮阳征信系统", "概要设计",
						"濮阳征信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "4个月", "30000元",
						"2014-03-01" ,"16574329975"});
				list.add(new String[] { "4", "内部银行系统", "操作拓扑",
						"内部银行系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "5个月", "15000元",
						"2014-03-01" ,"13955892134"});
				list.add(new String[] { "5", "银行卡部系统", "业务流程",
						"银行卡部系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "7个月", "2500元",
						"2014-03-01" ,"14788993743"});
				list.add(new String[] { "6", "濮阳授信系统", "组件化拓扑",
						"濮阳授信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "9个月", "1000元",
						"2014-03-01" ,"18064958732"});
				list.add(new String[] { "7", "濮阳征信系统1", "概要设计",
						"濮阳征信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "4个月", "30000元",
						"2014-03-01","13555857643" });
				list.add(new String[] { "8", "内部银行系统1", "操作拓扑",
						"内部银行系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "5个月", "5000元",
						"2014-03-01" ,"13677894323"});
				list.add(new String[] { "9", "银行卡部系统1", "业务流程",
						"银行卡部系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "7个月", "20000元",
						"2014-03-01" ,"18940912691"});
				list.add(new String[] { "10", "濮阳授信系统1", "组件化拓扑",
						"濮阳授信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "9个月", "400元",
						"2014-03-01","13999674836" });
				adapter.setList(list);
				MainActivity m = (MainActivity) getActivity();
				m.setSort("全部");
				m.setLimitTime("全部");
				m.setPrice("全部");
				adapter.notifyDataSetChanged();
			}
		});
		bt_search_condition.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				Intent intent = new Intent();
				intent.setClass(getActivity(), SearchCondition.class);
				getActivity().startActivity(intent);
			}
		});
		listView = (ListView) mMainView.findViewById(R.id.lv_robjob);
		list = new ArrayList<String[]>();
		list.add(new String[] { "1", "监管报送系统", "需求分析",
				"银行监管报送系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "3个月", "2000元",
				"2014-02-28","18643328574" });
		list.add(new String[] { "2", "绩效考核系统", "详细设计",
				"绩效考核系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "6个月", "3000元",
				"2014-03-01" ,"18744993322"});
		list.add(new String[] { "3", "濮阳征信系统", "概要设计",
				"濮阳征信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "4个月", "30000元",
				"2014-03-01" ,"16574329975"});
		list.add(new String[] { "4", "内部银行系统", "操作拓扑",
				"内部银行系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "5个月", "15000元",
				"2014-03-01" ,"13955892134"});
		list.add(new String[] { "5", "银行卡部系统", "业务流程",
				"银行卡部系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "7个月", "2500元",
				"2014-03-01" ,"14788993743"});
		list.add(new String[] { "6", "濮阳授信系统", "组件化拓扑",
				"濮阳授信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "9个月", "1000元",
				"2014-03-01" ,"18064958732"});
		list.add(new String[] { "7", "濮阳征信系统1", "概要设计",
				"濮阳征信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "4个月", "30000元",
				"2014-03-01","13555857643" });
		list.add(new String[] { "8", "内部银行系统1", "操作拓扑",
				"内部银行系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "5个月", "5000元",
				"2014-03-01" ,"13677894323"});
		list.add(new String[] { "9", "银行卡部系统1", "业务流程",
				"银行卡部系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "7个月", "20000元",
				"2014-03-01" ,"18940912691"});
		list.add(new String[] { "10", "濮阳授信系统1", "组件化拓扑",
				"濮阳授信系统，含有:\n1104、集中上报、反洗钱、\n利率分析、企业报表", "9个月", "400元",
				"2014-03-01","13999674836" });
		list = getSearchResult();
		adapter = new RobJobListAdapter(getActivity());
		adapter.setList(list);
		listView.setAdapter(adapter);
		listView.setTextFilterEnabled(true);

		searchView.setOnQueryTextListener(this);
		searchView.setSubmitButtonEnabled(false);

		ViewGroup p = (ViewGroup) mMainView.getParent();
		if (p != null) {
			p.removeAllViewsInLayout();
			Log.v("huahua", "fragment1-->移除已存在的View");
		}

		return mMainView;
	}

	public String getSort() {
		MainActivity m = (MainActivity) getActivity();
		return m.getSort();
	}

	public String getLimitTime() {
		MainActivity m = (MainActivity) getActivity();
		return m.getLimitTime();
	}

	public String getPrice() {
		MainActivity m = (MainActivity) getActivity();
		return m.getPrice();
	}

	/**
	 * 获取搜索条件,并对list进行搜索
	 * */
	public List<String[]> getSearchResult() {
		List<String[]> resultList = new ArrayList<String[]>();
		for (int i = 0; i < list.size(); i++) {
			if (list.get(i)[2].equals(getSort()) || getSort().equals("全部")) {
				if (list.get(i)[4].equals(getLimitTime())
						|| getLimitTime().equals("全部")) {
					System.out.println("-----截取数据----->"
							+ getPrice().substring(0, getPrice().length() - 1));
					if (getPrice().equals("全部")
							|| Integer.parseInt(list.get(i)[5].substring(0,
									list.get(i)[5].length() - 1)) <= Integer
									.parseInt(getPrice().substring(2))) {

						resultList.add(list.get(i));
					}
				}
			}
		}
		return resultList;
	}

	@Override
	public boolean onQueryTextSubmit(String newText) {
		return false;
	}
	/**
	 * 为listView设置一个过滤器，将searchView的文字以参数传进来
	 * */
	@Override
	public boolean onQueryTextChange(String newText) {
		if (TextUtils.isEmpty(newText)) {
			// Clear the text filter.
			listView.clearTextFilter();
		} else {
			// Sets the initial value for the text filter.
			listView.setFilterText(newText.toString());
		}
		return false;
	}
}

注意上面的代码，该类实现了OnQueryTextListener接口，并复写onQueryTextSubmit和onQueryTextChange方法。

接下来，就是关键中的关键，自定义的适配器，需要实现Fileterable接口，复写getFilter方法，需要构造一个继承于Filter的类，在performFiltering方法中书写关于搜索的算法。

publishResults方法是把根据规则筛选出来的数据更新到list中，并刷新listView。

public class RobJobListAdapter extends BaseAdapter implements Filterable {
	List<String[]> list = null;
	Context context = null;
	private Filter filter;

	public RobJobListAdapter(Context context) {
		this.context = context;
	}

	public void setList(List<String[]> list) {
		this.list = list;
	}

	@Override
	public int getCount() {
		return list.size();
	}

	@Override
	public Object getItem(int position) {
		return list.get(position)[1];
	}

	@Override
	public long getItemId(int position) {
		return Integer.parseInt(list.get(position)[0].trim());
	}

	@Override
	public View getView(final int position, View convertView, ViewGroup parent) {
		View view = null;
		if (convertView == null) {
			view = LayoutInflater.from(context).inflate(
					R.layout.robjob_list_style, null);
		} else {
			view = convertView;
		}
		TextView description = (TextView) view.findViewById(R.id.description);
		TextView type = (TextView) view.findViewById(R.id.type);
		TextView price = (TextView)view.findViewById(R.id.tv_price);
		Button details = (Button) view.findViewById(R.id.bt_details);
		description.setText(list.get(position)[1]);
		type.setText(list.get(position)[2]);
		price.setText(list.get(position)[5]);
		details.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				Intent intent = new Intent();
				intent.putExtra("details", list.get(position));
				intent.setClass(context, RobJobDetail.class);
				context.startActivity(intent);
			}
		});
		return view;
	}

	@Override
	public Filter getFilter() {
		if (filter == null) {
			filter = new ProjectNameFilter(list);
		}
		return filter;
	}
	//项目名称过滤器
	private class ProjectNameFilter extends Filter {

		private List<String[]> original;

		public ProjectNameFilter(List<String[]> list) {
			this.original = list;
		}

		@Override
		protected FilterResults performFiltering(CharSequence constraint) {
			FilterResults results = new FilterResults();
			if (constraint == null || constraint.length() == 0) {
				results.values = original;
				results.count = original.size();
			} else {
				List<String[]> mList = new ArrayList<String[]>();
				for (String[] p : original) {
					if (p[1].toUpperCase().startsWith(
							constraint.toString().toUpperCase())) {
						mList.add(p);
					}
				}
				results.values = mList;
				results.count = mList.size();
			}
			return results;
		}
		
		/**
		 *更新list列表 
		 * */
		@Override
		protected void publishResults(CharSequence constraint,
				FilterResults results) {
			list = (List<String[]>) results.values;
			notifyDataSetChanged();
		}

	}
}

源码下载地址：http://download.csdn.net/detail/xf396191344/7308343