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

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;
@Override
protected 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);
}
}

<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>

<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>