2.0联系人增、删、改、查
本章和大家分享的是手机通讯录方面的经验，需求背景:对手机通讯录进行增、删、改、查，或者有时候App需要与手机 contacts进行交互或共享contacts。
我们都知道android系统没有完全将contacts向developer开放，开发人员只能通过android提供的有限的Api对contacts进行操作，我们只能通过ContentProvider对contacts的数据进行增、删、改、查等操作，并不能改变到其表结构。
首先，我们来看下如何通过ContentProvider查找contacts，以下我以查找其姓、名、公司、家庭电话、工作电话、移动电话、传真、邮箱、城市、省份、国家、出生年月为例：
/**
* 取得family_name和given_name
*/
Cursor nameCur=cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {Data.CONTACT_ID, StructuredName.DISPLAY_NAME, StructuredName.FAMILY_NAME, StructuredName.GIVEN_NAME, StructuredName.MIDDLE_NAME},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
+ ContactsContract.Data.MIMETYPE + "='" + ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE + "'",
new String[]{android_id}, null);
if(nameCur.moveToFirst()){
firstName=nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.FAMILY_NAME));
lastName=nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME));
}
nameCur.close();
Cursor companyCur=cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {CommonDataKinds.Organization.COMPANY},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
+ ContactsContract.Data.MIMETYPE + "='" + ContactsContract.CommonDataKinds.Organization.CONTENT_ITEM_TYPE + "'",
new String[]{android_id}, null);
if(companyCur.moveToFirst()){
company=companyCur.getString(companyCur.getColumnIndex(CommonDataKinds.Organization.COMPANY));
}
companyCur.close();
// 根据contact_ID取得HomePhone号码
Cursor homePhoneCur = cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {ContactsContract.CommonDataKinds.Phone.NUMBER},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
+ ContactsContract.Data.MIMETYPE + "=? "+" AND "
+ContactsContract.CommonDataKinds.Phone.TYPE + "=?",
new String[]{android_id,ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE,String.valueOf(ContactsContract.CommonDataKinds.Phone.TYPE_HOME)}, null);
if(homePhoneCur.moveToFirst()){
homePhone=homePhoneCur.getString(homePhoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
homePhoneCur.close();
// 根据contact_ID取得WorkPhone号码
Cursor workPhoneCur = cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {ContactsContract.CommonDataKinds.Phone.NUMBER},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
+ ContactsContract.Data.MIMETYPE + "=? "+" AND "
+ContactsContract.CommonDataKinds.Phone.TYPE + "=?",
new String[]{android_id,ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE,String.valueOf(ContactsContract.CommonDataKinds.Phone.TYPE_WORK)}, null);
if(workPhoneCur.moveToFirst()){
workPhone=workPhoneCur.getString(workPhoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
workPhoneCur.close();
// 根据contact_ID取得MobilePhone号码
Cursor mobilePhoneCur = cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {ContactsContract.CommonDataKinds.Phone.NUMBER},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
+ ContactsContract.Data.MIMETYPE + "=? "+" AND "
+ContactsContract.CommonDataKinds.Phone.TYPE + "=?",
new String[]{android_id,ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE,String.valueOf(ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE)}, null);
if(mobilePhoneCur.moveToFirst()){
mobilePhone=mobilePhoneCur.getString(mobilePhoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
mobilePhoneCur.close();
// 根据contact_ID取得MobilePhone号码
Cursor faxPhoneCur = cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {ContactsContract.CommonDataKinds.Phone.NUMBER},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
+ ContactsContract.Data.MIMETYPE + "=? "+" AND "
+ContactsContract.CommonDataKinds.Phone.TYPE + "=?",
new String[]{android_id,ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE,String.valueOf(ContactsContract.CommonDataKinds.Phone.TYPE_FAX_HOME)}, null);
if(faxPhoneCur.moveToFirst()){
faxPhone=faxPhoneCur.getString(faxPhoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
faxPhoneCur.close();
// 根据contact_ID取得MobilePhone号码
Cursor emailCur = cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {ContactsContract.CommonDataKinds.Email.DATA},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
+ ContactsContract.Data.MIMETYPE + "=? "+" AND "
+ContactsContract.CommonDataKinds.Phone.TYPE + "=?",
new String[]{android_id,ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE,String.valueOf(ContactsContract.CommonDataKinds.Email.TYPE_WORK)}, null);
if(emailCur.moveToFirst()){
email=emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
}
emailCur.close();
// 根据contact_ID取得MobilePhone号码
Cursor addressCur = cr.query(ContactsContract.Data.CONTENT_URI,
new String[] {ContactsContract.CommonDataKinds.StructuredPostal.CITY,ContactsContract.CommonDataKinds.StructuredPostal.REGION,
ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY},
ContactsContract.Data.CONTACT_ID + "=?" + " AND "
