如何在android中删除联系人？

I want to delete user name whose name is Leo. So I am putting delete query as follow

我想删除名称为Leo的用户名。所以我把删除查询如下

    int i = getContentResolver().delete(Contacts.CONTENT_URI, Contacts.DISPLAY_NAME +"= 'Leo'",null);
    System.out.println("rows deleted "+i);

but it returns "rows deleted 0"

what is wrong with it.

它有什么问题。

Edits : The above is not working because the field is read only using Contacts.CONTENT_URI You can see using following URI. http://developer.android.com/reference/android/provider/ContactsContract.Contacts.html

编辑：以上操作无效，因为该字段仅使用Contacts.CONTENT_URI读取您可以使用以下URI查看。 http://developer.android.com/reference/android/provider/ContactsContract.Contacts.html

3 个解决方案

#1

http://developer.android.com/resources/samples/SampleSyncAdapter/index.html

In above link I can able to find the solution. I can able to delete contacts completely.

在上面的链接中，我能够找到解决方案。我可以完全删除联系人。

The problem is related to sync adapter.

该问题与同步适配器有关。

#2

To delete selected contacts from the contactDB we could use the following code.

要从contactDB中删除选定的联系人，我们可以使用以下代码。

ContentResolver cr = getContentResolver();
                String where = ContactsContract.Data.DISPLAY_NAME + " = ? ";
                String[] params = new String[] {nam};

                ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
                ops.add(ContentProviderOperation.newDelete(ContactsContract.RawContacts.CONTENT_URI)
                        .withSelection(where, params)
                        .build());
                try {
                    cr.applyBatch(ContactsContract.AUTHORITY, ops);
                } catch (RemoteException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (OperationApplicationException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

#3

I suppose you should state in Android manifest permission to WRITE_CONTACTS. Look in http://developer.android.com/reference/android/Manifest.permission.html

我想你应该在Android清单中声明WRITE_CONTACTS。查看http://developer.android.com/reference/android/Manifest.permission.html

#1