android調用系統電話薄，實現增刪改查。

因為有個需求，需要調用系統電話薄，實現增刪改查后並實時刷新頁面，寫了個demo供大家參考，取聯系人名字跟手機號碼展示在Listview上，單擊出現聯系人的詳細情況，長按出現上下文菜單，彈出編輯刪除菜單，下面請看代碼。

首先在Androidmainifest中添加對電話薄的讀寫權限。

<uses-permission android:name="android.permission.READ_CONTACTS" />
  <uses-permission android:name="android.permission.WRITE_CONTACTS" />

因為繼承於ListActivity，沒有用到配置文件，下面貼出java代碼。

package com.android;
import android.app.ListActivity;
import android.content.ContentUris;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Contacts.People;
import android.provider.ContactsContract;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class TkActivity extends  ListActivity {
    private static final int AddContact_ID = Menu.FIRST;
    private static final int delete = Menu.FIRST+1;
    private static final int edit = Menu.FIRST+2;        
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getListView().setOnCreateContextMenuListener(this);
        getquery();       
    }
    
    public void getquery(){
      @SuppressWarnings("deprecation")
    Cursor  cursor = this.getContentResolver().query(People.CONTENT_URI, null,
                null, null, null);
      @SuppressWarnings("deprecation")
    SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,
              android.R.layout.simple_list_item_2,
              cursor,
              new String[] {People.NAME, People.NUMBER },
              new int[] { android.R.id.text1, android.R.id.text2 });
          setListAdapter(adapter);            
    }   
    
    //監聽每個item，按下顯示詳細電話內容
    protected void onListItemClick(ListView l, View v, int position, long id)   
    {   
        Uri uri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, id);           
            //查看聯系人
            startActivity(new Intent(Intent.ACTION_VIEW, uri));            
    }  
    
    public boolean onCreateOptionsMenu(Menu menu) 
    {
        super.onCreateOptionsMenu(menu);
        //添加聯系人
        menu.add(0, AddContact_ID, 0, "添加");  
        return true;   
    }
    
    public boolean onOptionsItemSelected(MenuItem item) 
    {
        switch (item.getItemId()) 
        {
        case AddContact_ID:
            //添加聯系人
            Intent intent = new Intent();
            //為Intent設置Action屬性（動作為：編輯）
            intent.setAction(Intent.ACTION_INSERT);
            String data = "content://com.android.contacts/contacts";
            //根據指定字符串解析出Uri對象
            Uri uri = Uri.parse(data);                
            //設置Data屬性
            intent.setData(uri);
            startActivity(intent);   
            getquery();
        }
        return super.onOptionsItemSelected(item);
    }
    
   //長按菜單
    public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo menuInfo)
    {
        AdapterView.AdapterContextMenuInfo info;
        try
        {
            info = (AdapterView.AdapterContextMenuInfo) menuInfo;
        }
        catch (ClassCastException e)
        {
            return;
        }
        //得到長按的數據項
        Cursor cursor = (Cursor) getListAdapter().getItem(info.position);
        if (cursor == null)
        {
            return;
        }
        menu.setHeaderTitle(cursor.getString(1));
        //添加刪除菜單
        menu.add(0, delete, 0, "刪除");
        menu.add(0,edit,1,"編輯");
    }
    
    @Override
    public boolean onContextItemSelected(MenuItem item)
    {
        AdapterView.AdapterContextMenuInfo info;
        try
        {
            info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
        }
        catch (ClassCastException e)
        {
            return false;
        }

        switch (item.getItemId())
        {
            case delete:
            {
                //刪除一條記錄
                Uri noteUri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, info.id);
                getContentResolver().delete(noteUri, null, null);
                getquery();
                return true;
            }
            case edit:
                Uri editUri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, info.id);
                startActivity(new Intent(Intent.ACTION_EDIT, editUri));  
                getquery();                
        }
        return false;
    }
    
    @Override
    protected void onResume() {
        // TODO Auto-generated method stub
        getquery();
        super.onResume();
    }
    
}