Android从数据中获取联系人照片。电子邮件查询
我正在制作一个自动完成字段,通过显示名称和电子邮件查询联系人。当某人在过滤后单击所需的联系人时,该联系人将被添加到包含其电子邮件、显示姓名和图片(如果有)的列表中。
到目前为止,除了让照片出现之外,我已经完成了所有事情。以下是我运行查询来获取电子邮件、显示名称、ID 和照片 ID 的方法。
return mContent.query(Email.CONTENT_URI,
PROJECTION, filter, null, null);
其中投影是:
PROJECTION = new String[] {ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.Contacts.PHOTO_ID,
Email.DATA
};
这个执行我需要的操作并返回所有数据。但我在调试此问题期间注意到的一件事是,联系人 ID 与针对特定显示名称针对 ContactsContract.Contacts.CONTENT_URI 运行查询不同。
例如,我运行的测试通过运行 Contacts.CONTENT_URI 获取所有联系人,给了我一个图像和 ID 为 152 的联系人。但是,针对 Email.CONTENT_URI 的查询为我提供了同一联系人的 id 452 (使用相同的显示名称和电子邮件地址)。因此,当我尝试获取包含 Id 452 的内容 uri 的照片时,它会返回该照片不存在,但如果我尝试获取 152 的照片,它会完美运行。
是什么导致了这个问题?我如何获得正确的用户 ID?是否有任何我可以运行来获取联系人 ID 的关系查询,或者可能是在这个查询的帮助下获取它的正确方法。
谢谢。
编辑
我发现这是在挖掘旧代码。可能对任何人都有帮助。
所以完整的查询:
String[] PROJECTION = new String[] { ContactsContract.RawContacts._ID,
ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.Contacts.PHOTO_ID,
Email.DATA, ContactsContract.CommonDataKinds.Photo.CONTACT_ID };
String order = " CASE WHEN " + ContactsContract.Contacts.DISPLAY_NAME
+ " NOT LIKE '%@%' THEN 1" + " ELSE 2 END, "
+ ContactsContract.Contacts.DISPLAY_NAME + " COLLATE NOCASE";
String filter = Email.DATA + " NOT LIKE '' ) GROUP BY ( " + Email.DATA;
然后是它的
getContentResolver().query( Email.CONTENT_URI, PROJECTION, filter, null, order);
I am making a autocomplete Field that queries contacts by Display name and Email. When someone clicks on the desired contact after the filtering that contact is added to a list with his email, display name and Picture if he has any.
So so far i have managed to do everything except to make the Photo appear. Here is how i run the query to get the email, display name, ID , and Photo ID.
return mContent.query(Email.CONTENT_URI,
PROJECTION, filter, null, null);
where projection is:
PROJECTION = new String[] {ContactsContract.Contacts._ID,
ContactsContract.Contacts.DISPLAY_NAME,
ContactsContract.Contacts.PHOTO_ID,
Email.DATA
};
This one does what i need and returns all the data. But one thing i noticed during debugging this issue is that the contact id is different than if you run the query against ContactsContract.Contacts.CONTENT_URI for a specific display name for example.
For example the tests i have run where i get all the contacts by running the Contacts.CONTENT_URI gave me a contact with an image and Id of 152. However the query against the Email.CONTENT_URI gives me an id of 452 for the same contact (With same display name and email address). so when i try to get the Photo for a content uri containing the Id 452 it returns that the photo doesnt exist, but if i try to get the photo for 152 it works perfectly.
What is causing this issue? how do i get the correct User ID? Is there any relational query that i can maybe run to get a contact ID, or maybe a correct way to get it with the help of this one.
Thank you.
EDIT
I found this digging around old code. Might be helpful to anyone.
So the full query:
String[] PROJECTION = new String[] { ContactsContract.RawContacts._ID,
ContactsContract.Contacts.DISPLAY_NAME, ContactsContract.Contacts.PHOTO_ID,
Email.DATA, ContactsContract.CommonDataKinds.Photo.CONTACT_ID };
String order = " CASE WHEN " + ContactsContract.Contacts.DISPLAY_NAME
+ " NOT LIKE '%@%' THEN 1" + " ELSE 2 END, "
+ ContactsContract.Contacts.DISPLAY_NAME + " COLLATE NOCASE";
String filter = Email.DATA + " NOT LIKE '' ) GROUP BY ( " + Email.DATA;
then its
getContentResolver().query( Email.CONTENT_URI, PROJECTION, filter, null, order);
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当您想要访问联系人的照片时,您需要指定联系人照片 URI,例如使用此方法:
但是对于 contactId 您必须使用:
请注意,一个常见的错误是使用
ContactsContract.Contacts._ID
而不是ContactsContract.CommonDataKinds.Photo.CONTACT_ID
我希望这可以帮助您。
When you want to access the photo of a contact, you need to specify the contact photo URI, for example using this method:
But for contactId you must use:
Please note that a common error is to use
ContactsContract.Contacts._ID
insteadContactsContract.CommonDataKinds.Photo.CONTACT_ID
I hope that can help you.
您应该在查询中使用 RAW_CONTACT_ID。例如,可以有两个不同的联系人,即单个 CONTACT_ID 具有不同的 RAW_CONTACT_ID。
You should use RAW_CONTACT_ID in the query. For ex, there can be two different contacts i.e. different RAW_CONTACT_ID for a single CONTACT_ID.
也许你可以看看这篇博客文章中的示例,他们查询所有联系人、电子邮件地址和联系人照片
http:// blog.app-solut.com/2011/03/working-with-the-contactscontract-to-query-contacts-in-android/
maybe you can take a look at this blog post in the example there they query all contacts, email addresses and the contact photo
http://blog.app-solut.com/2011/03/working-with-the-contactscontract-to-query-contacts-in-android/
最好的代码将适用
于所有人
best code will be
it works for all