contentProvider

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:orientation="vertical"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    tools:context=".MainActivity">

    <TextView

        android:id="@+id/info"

        android:textSize="20px"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="联系人列表" />

    <ListView

        android:id="@+id/linkManLists"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"/>

</LinearLayout>

=================contact.xml=================

<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    >

    <TableRow>

    <TextView

        android:id="@+id/_id"

        android:textSize="20px"

        android:layout_height="wrap_content"

        android:layout_width="60px"

        android:text="联系人列表" />

    <TextView

        android:id="@+id/_name"

        android:textSize="20px"

        android:layout_height="wrap_content"

        android:layout_width="300px"

        android:text="联系人列表" />

    </TableRow>

</TableLayout>

====================================

package com.example.eightoperlinkmancontentprovider;

import android.database.Cursor;

import android.net.Uri;

import android.os.Bundle;

import android.app.Activity;

import android.provider.ContactsContract;

import android.view.ContextMenu;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import android.widget.Toast;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

public class MainActivity extends Activity {

    private ListView contactsList=null;

    private Cursor result= null;

    private List<Map<String,Object>> allContactMap=null;  //option +return

    private SimpleAdapter simpleAdapter = null;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        this.contactsList= (ListView) super.findViewById(R.id.linkManLists);

        this.result = super.getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null,null,null,null);

        this.startManagingCursor(result);

        this.allContactMap = new ArrayList<Map<String, Object>>();

        for (result.moveToFirst();!result.isAfterLast();result.moveToNext()){

            Map<String, Object> contactMap = new HashMap<String, Object>();

            contactMap.put("_id",result.getColumnIndex(ContactsContract.Contacts._ID));

            contactMap.put("_name",result.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

            this.allContactMap.add(contactMap);

        }

        this.simpleAdapter = new SimpleAdapter(this,allContactMap,R.layout.contacts,new String[]{"_id","_name"},new int[]{R.id._id,R.id._name});

        this.contactsList.setAdapter(this.simpleAdapter);

        super.registerForContextMenu(this.contactsList);//reigister context menu

    }

//    @Override

//    public boolean onCreateOptionsMenu(Menu menu) {

//        // Inflate the menu; this adds items to the action bar if it is present.

//        getMenuInflater().inflate(R.menu.main, menu);

//        return true;

//    }

    @Override

    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {

        super.onCreateContextMenu(menu, v, menuInfo);

        menu.setHeaderTitle("联系人操作：");

        menu.add(Menu.NONE, Menu.FIRST + , , "Show Detail");

        menu.add(Menu.NONE,Menu.FIRST+,,"Delete Info");

    }

    @Override

    public boolean onContextItemSelected(MenuItem item) {//选中某个菜单项

        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();

        int idx = info.position;

        //取得数据ID

        long contactid=Long.parseLong(this.allContactMap.get(idx).get("_id").toString());

        switch (item.getItemId()){

            case Menu.FIRST+:

                String phoneSelection = ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=?";

                //查询参数

                String[]  phoneSelectionArgs = {String.valueOf(contactid)};

                //查询全部手机号码

               Cursor c = super.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,null,phoneSelection,phoneSelectionArgs,null);

               StringBuffer stringBuffer = new StringBuffer();

                stringBuffer.append("电话号码是：");

                for (result.moveToFirst();!result.isAfterLast();result.moveToNext()){

                    stringBuffer.append(c.getString(c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER))).append(",");

                }

                Toast.makeText(this,stringBuffer,Toast.LENGTH_LONG).show();

                break;

            case Menu.FIRST+:

                super.getContentResolver().delete(Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_URI,String.valueOf(contactid)),null,null);

                this.allContactMap.remove(idx);//删除数据项

                this.simpleAdapter.notifyDataSetChanged();

                Toast.makeText(this,"数据已经删除！",Toast.LENGTH_LONG).show();

                break;

        }

        return false;

    }

}