ListView和各种Adapter的使用

1，和最简单的ArrayAdapter的使用：

package com.wt.app;import android.app.ListActivity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.ListAdapter;public class App extends ListActivity {String[] array={/*"aaa","bbb","ccc"*/};    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        //为空时的显示内容        this.getListView().setEmptyView(findViewById(R.id.empty));                ListAdapter adapter=new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,array);        this.setListAdapter(adapter);    }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><ListView     android:id="@+id/android:list"    android:layout_width="fill_parent"    android:layout_height="wrap_content"     />    <TextView android:id="@+id/empty"    android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:gravity="center_vertical"    android:text="Nothing"    /></LinearLayout>

2，和SimpleAdapter的使用：

package com.wt.app;import java.util.ArrayList;import java.util.HashMap;import android.app.Activity;import android.os.Bundle;import android.view.ContextMenu;import android.view.MenuItem;import android.view.View;import android.view.ContextMenu.ContextMenuInfo;import android.view.View.OnCreateContextMenuListener;import android.widget.AdapterView;import android.widget.ListView;import android.widget.SimpleAdapter;import android.widget.AdapterView.OnItemClickListener;public class App extends Activity {@Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        //绑定Layout里面的ListView        ListView list = (ListView) findViewById(R.id.ListView01);                //生成动态数组，加入数据        ArrayList<HashMap<String, Object>> listItem = new ArrayList<HashMap<String, Object>>();        int[] images=new int[]{android.R.drawable.ic_menu_add,android.R.drawable.ic_menu_delete,android.R.drawable.ic_menu_edit,android.R.drawable.ic_menu_view};        for(int i=0;i<4;i++)        {        HashMap<String, Object> map = new HashMap<String, Object>();        map.put("itemImage", images[i]);//图像资源的ID        map.put("itemTitle", "Title "+i);        map.put("itemText", "this is Text "+i);        listItem.add(map);        }        //生成适配器的Item和动态数组对应的元素        SimpleAdapter listItemAdapter = new SimpleAdapter(this,listItem,//数据源             R.layout.row,//ListItem的XML实现            //动态数组与ImageItem对应的子项                    new String[] {"itemImage","itemTitle", "itemText"},             //ImageItem的XML文件里面的一个ImageView,两个TextView ID            new int[] {R.id.itemImage,R.id.itemTitle,R.id.itemText}        );               //添加并且显示        list.setAdapter(listItemAdapter);        //添加点击        list.setOnItemClickListener(new OnItemClickListener() {public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {setTitle("点击第"+arg2+"个项目");}});              //添加长按点击        list.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {public void onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo) {menu.setHeaderTitle("长按菜单-ContextMenu");   menu.add(0, 0, 0, "弹出长按菜单0");menu.add(0, 1, 0, "弹出长按菜单1");   }});     }//长按菜单响应函数@Overridepublic boolean onContextItemSelected(MenuItem item) {setTitle("点击了长按菜单里面的第"+item.getItemId()+"个项目"); return super.onContextItemSelected(item);}}

main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><ListView android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:id="@+id/ListView01"      />  </LinearLayout>\

row.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout android:id="@+id/RelativeLayout01" android:layout_width="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:paddingTop="4dip" android:paddingBottom="4dip" android:paddingLeft="12dip"android:paddingRight="12dip"><ImageView android:paddingTop="12dip"android:layout_alignParentRight="true"android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/itemImage"/> <TextView     android:layout_height="wrap_content"     android:textSize="20dip"     android:layout_width="fill_parent"     android:id="@+id/itemTitle"    /><TextView android:layout_height="wrap_content" android:layout_width="fill_parent" android:layout_below="@+id/itemTitle" android:id="@+id/itemText"/></RelativeLayout>

3，和SimpleCursorAdapter的使用：

package com.wt.app;import android.app.Activity;import android.app.PendingIntent;import android.content.ContentUris;import android.content.Intent;import android.database.Cursor;import android.database.CursorWrapper;import android.graphics.Color;import android.net.Uri;import android.os.Bundle;import android.provider.Contacts.People;import android.telephony.PhoneNumberUtils;import android.telephony.gsm.SmsManager;import android.util.Log;import android.view.ContextMenu;import android.view.MenuItem;import android.view.View;import android.view.ContextMenu.ContextMenuInfo;import android.view.View.OnCreateContextMenuListener;import android.widget.AdapterView;import android.widget.LinearLayout;import android.widget.ListAdapter;import android.widget.ListView;import android.widget.SimpleCursorAdapter;import android.widget.Toast;public class App extends Activity {private static final String TAG="App";ListView listView;ListAdapter adapter;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);       // setContentView(R.layout.main);        LinearLayout linearLayout=new LinearLayout(this);        linearLayout.setOrientation(LinearLayout.VERTICAL);        linearLayout.setBackgroundColor(Color.BLACK);        LinearLayout.LayoutParams param=new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT,LinearLayout.LayoutParams.WRAP_CONTENT);                listView=new ListView(this);        listView.setBackgroundColor(Color.BLACK);                linearLayout.addView(listView,param);                this.setContentView(linearLayout);                //从数据库获取联系人姓名和电话号码        Cursor cur=this.getContentResolver().query(People.CONTENT_URI,null, null,null,null);        adapter=new SimpleCursorAdapter(this,android.R.layout.simple_list_item_2,cur,new String[]{People.NAME,People.NUMBER},new int[]{android.R.id.text1,android.R.id.text2});        this.startManagingCursor(cur);        listView.setAdapter(adapter);        //listView.setEmptyView(findViewById(R.id.empty));                listView.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener(){public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {// TODO Auto-generated method stub//openToast("滚动到："+arg0.getSelectedItemId());//短信发送//PendingIntent pi = PendingIntent.getActivity(App.this,0,new Intent(App.this,App.class),0);//SmsManager sms = SmsManager.getDefault();  //sms.sendTextMessage("5554", null, "message", pi, null); }public void onNothingSelected(AdapterView<?> arg0) {// TODO Auto-generated method stub}                });        listView.setOnItemClickListener(new AdapterView.OnItemClickListener(){public void onItemClick(AdapterView<?> arg0, View arg1, int position,long arg3) {// TODO Auto-generated method stub//String[] names=((CursorWrapper)listView.getItemAtPosition(position)).getColumnNames();//从指针的封装类中获得选中项的电话号码并拨号CursorWrapper wrapper=(CursorWrapper)listView.getItemAtPosition(position);int columnIndex=wrapper.getColumnIndex(People.NUMBER);if(!wrapper.isNull(columnIndex)){String number=wrapper.getString(columnIndex);Log.d(TAG,"number="+number);////判断电话号码的有效性if(PhoneNumberUtils.isGlobalPhoneNumber(number)){Intent intent = new Intent(Intent.ACTION_DIAL,Uri.parse("tel://"+ number));startActivity(intent);}}/*//直接拨号，需要CALL_PHONE权限Intent intent=new Intent(Intent.ACTION_CALL);                Cursor c=(Cursor)adapter.getItem(position);                long phoneID=c.getLong(c.getColumnIndex(People.PRIMARY_PHONE_ID));                intent.setData(ContentUris.withAppendedId(android.provider.                                             Contacts.Phones.CONTENT_URI, phoneID));                startActivity(intent);                */}        });      //添加长按点击，弹出快显菜单        listView.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {public void onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo) {menu.setHeaderTitle("你想要...？").setHeaderIcon(R.drawable.icon); menu.add(0, 0, 0, "删除").setIcon(R.drawable.icon);menu.add(0, 1, 0, "修改").setIcon(R.drawable.icon);   }});    }  //长按菜单响应函数@Overridepublic boolean onContextItemSelected(MenuItem item) {//setTitle("点击了长按菜单里面的第"+item.getItemId()+"个项目"); openToast("你点击了"+item.getTitle());return super.onContextItemSelected(item);}    private void openToast(String str){    Toast.makeText(this,str,Toast.LENGTH_SHORT).show();    }}

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.wt.app"      android:versionCode="1"      android:versionName="1.0">    <application android:icon="@drawable/icon" android:label="@string/app_name">        <activity android:name=".App"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>            <!-- 点击拨号时，询问调用默认的程序还是调用本程序拨号 -->   <intent-filter>    <action android:name="android.Intent.Action.CALL_BUTTON" />   <category android:name="android.Intent.Category.DEFAULT" />    </intent-filter>         </activity>    </application>    <uses-permission android:name="android.permission.READ_CONTACTS" />    <uses-permission android:name="android.permission.CALL_PHONE"/>    <uses-sdk android:minSdkVersion="3" /></manifest>