public class ContactInfo{        private String name;        private String phone;                public String getName()        {                return name;        }        public void setName(String name)        {                this.name = name;        }        public String getPhone()        {                return phone;        }        public void setPhone(String phone)        {                this.phone = phone;        }        }

public class ContactInfoService{        private Context context;                public ContactInfoService(Context context)        {                this.context = context;        }                public List
    
      getContactInfos()        {                List
     
       infos = new ArrayList
      
       ();                ContactInfo info;                                ContentResolver contentResolver = context.getContentResolver();                //在源码的AndroidManifest里面可以看到这些uri                Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");                Uri dataUri = Uri.parse("content://com.android.contacts/data");                Cursor cursor = contentResolver.query(uri, null, null, null, null);                while(cursor.moveToNext())                {                        info = new ContactInfo();                        String id = cursor.getString(cursor.getColumnIndex("_id"));                        String name = cursor.getString(cursor.getColumnIndex("display_name"));                        info.setName(name);                        //通过raw_contacts里面的id拿到data里面对应的数据                        Cursor dataCursor = contentResolver.query(dataUri, null, "raw_contact_id = ? ", new String[] {id}, null);                        while(dataCursor.moveToNext())                        {                                String type = dataCursor.getString(dataCursor.getColumnIndex("mimetype"));                                //根据类型，只要电话这种类型的数据                                if(type.equals("vnd.android.cursor.item/phone_v2"))                                {                                        String number = dataCursor.getString(dataCursor.getColumnIndex("data1"));//拿到数据                                        info.setPhone(number);                                }                        }                        dataCursor.close();                        infos.add(info);                        info = null;                }                cursor.close();                return infos;        }}