Filter(一)——设置SimpleAdapter的Filter从而过滤数据

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MainActivity如下:

package ccc.testfilterofadapter;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import android.os.Bundle;import android.widget.ListView;import android.widget.SimpleAdapter;import android.app.Activity;/** * Demo描述: * 设置SimpleAdapter的Filter * 这样的局限性很大. * 对条件做复杂限制的应该定义Adapter且实现Filterable接口 *  * 参考资料: * 1 http://winuxxan.blog.51cto.com/2779763/509931 * 2 http://www.cnblogs.com/over140/archive/2010/11/25/1887892.html *   Thank you very much */public class MainActivity extends Activity {    private ListView mListView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);init();}private void init(){mListView=(ListView) findViewById(R.id.listView);        List<HashMap<String, Object>> list=new ArrayList<HashMap<String,Object>>();      HashMap<String, Object> hashMap=null;      for (int i = 0; i < 5; i++) {      hashMap=new HashMap<String, Object>();      hashMap.put("name", "小明"+i);          hashMap.put("phone", "135"+i);          hashMap.put("amount","500"+i);        list.add(hashMap);}      for (int i = 0; i < 5; i++) {      hashMap=new HashMap<String, Object>();      hashMap.put("name", "小张"+i);          hashMap.put("phone", "138"+i);          hashMap.put("amount","700"+i);        list.add(hashMap);}            SimpleAdapter adapter=new SimpleAdapter(this, list, R.layout.listviewitem,       new String []{"name","phone","amount"}, new int[]{R.id.name,R.id.phone,R.id.amount});      //为Adapter设置过滤条件      adapter.getFilter().filter("小张");      mListView.setAdapter(adapter);}}

main.xml如下:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    >    <ListView        android:id="@+id/listView"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        android:layout_centerInParent="true" /></RelativeLayout>

listviewitem如下:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="50dip"    android:gravity="center"    android:orientation="horizontal" >    <TextView        android:id="@+id/name"        android:layout_width="100dip"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/phone"        android:layout_width="150dip"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/amount"        android:layout_width="fill_parent"        android:layout_height="wrap_content" /></LinearLayout>

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