我尝试对用户联系人实施实时搜索,我想获取每个匹配联系人的姓名,缩略图和地址(如果有).
用户键入时正在运行实时搜索.
所以他输入了ma并将获得’martin’,’matthews’……
他将继续垫子,只会看到’matthews’
我尝试使用如下的单个查询来实现此目的,但我始终在FORMATTED_ADRESS字段中获取联系号码.我想我有一个JOIN问题,因为我在同一个查询中使用ContactsContract.CommonDataKinds和ContactsContract.Contacts？
public static List<ContactModel> getContactsForQuery(Context context,String query) {
String[] projection = new String[] {
ContactsContract.Contacts.disPLAY_NAME,Contacts.PHOTO_THUMBNAIL_URI,ContactsContract.CommonDataKinds.StructuredPostal.FORMATTED_ADDRESS
};
Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
String selection = ContactsContract.Contacts.disPLAY_NAME + " LIKE '%" + query + "%'";
Cursor cursor = context.getContentResolver().query(uri,projection,selection,null,null);
if (cursor.movetoFirst()) {
do {
String name = cursor.getString(0);
String thumbail = cursor.getString(1);
String formattedADress = cursor.getString(2);
}
while (cursor.movetoNext());
}
我实际上解决了我的问题
>查询Contacts._ID,Contacts.disPLAY_NAME
>使用Contacts._ID开始第二个查询,如下所示
Cursor detailCursor = context.getContentResolver().query(
ContactsContract.Data.CONTENT_URI,new String[]{
CommonDataKinds.StructuredPostal.STREET,CommonDataKinds.StructuredPostal.CITY,CommonDataKinds.StructuredPostal.POSTCODE
},ContactsContract.Data.CONTACT_ID + "=? AND "
+ CommonDataKinds.StructuredPostal.MIMETYPE + "=?",new String[]{
String.valueOf(contactID),CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE
},null);
但这将为每个联系人启动第二个查询,这可能不是最好的方法.
所以我的最后一个问题是：是否可以使用第一个查询来完成这项工作？
解决方法
嗯,非常难过,没有人能够回答我的问题并抓住赏金点;-(
为了记录,这是我的工作示例.它解决了这个问题,但我仍然认为它会产生很大的负荷.在每个用户条目(afterTextchange)上,我调用getContactsDetailsQuery,它首先获取所有用户的ID,其ID包含其名称(光标)中的查询,然后我为每个用户启动另一个查询(detailCursor)以获取地址.为了防止过载,我增加了一个限制..
public static List<SearchModel> getContactDetailsForQuery(Context context,String query,int limit) {
final int CONTACT_ID_INDEX = 0;
final int CONTACT_NAME_INDEX = 1;
final int CONTACT_THUMBNAIL_INDEX = 2;
//my custom model to hold my results
List<SearchModel> results = new ArrayList<SearchModel>();
final String[] selectUser = new String[]{
Contacts._ID,Contacts.disPLAY_NAME,Contacts.PHOTO_THUMBNAIL_URI};
String selection = Contacts.disPLAY_NAME + " LIKE ?";
String[] selectionArgs = new String[]{"%" + query + "%"};
String sortOrder = Contacts.disPLAY_NAME + " ASC";
Cursor cursor = context.getContentResolver().query(Contacts.CONTENT_URI,selectUser,selectionArgs,sortOrder,null);
int contactCounter = 0;
if (cursor != null && cursor.movetoFirst()) {
do {
String contactID = cursor.getString(CONTACT_ID_INDEX);
String displayName = cursor.getString(CONTACT_NAME_INDEX);
String thumbnail = cursor.getString(CONTACT_THUMBNAIL_INDEX);
//get user details with user id (this is the query i wanted to change in my question!!)
Cursor detailCursor = context.getContentResolver().query(ContactsContract.Data.CONTENT_URI,new String[]{
CommonDataKinds.StructuredPostal.FORMATTED_ADDRESS},ContactsContract.Data.CONTACT_ID + "=? AND " +
CommonDataKinds.StructuredPostal.MIMETYPE + "=?",new String[]{String.valueOf(contactID),CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE},null);
if (detailCursor != null && detailCursor.movetoFirst()) {
//special case: user has several address,query all of them
do {
String formattedAddress = detailCursor.getString(detailCursor.getColumnIndex(CommonDataKinds.StructuredPostal.FORMATTED_ADDRESS));
//user has serveral adress -> init model for each adress
SearchModel contact = new SearchModel();
results.add(contact);
contactCounter++;
} while (detailCursor.movetoNext() && contactCounter < limit);
} else {
//user has no adress -> init model
SearchModel contact = new SearchModel();
results.add(contact);
contactCounter++;
}
detailCursor.close();
} while (cursor.movetoNext() && contactCounter < limit);
}
cursor.close();
return results;
}