获取具有类型到过滤器功能的 Android 联系人，该功能仅限于特定帐户

Question

我正在尝试：

• 显示联系人列表
• 让用户通过键入查询来搜索它们
• 将搜索结果限制为仅限特定的 Google/Gmail 帐户。

---

这是我为游标构建 URI 的方式：

// User is searching for 'jo'
String query = "jo";
Uri uri = Uri.withAppendedPath(Contacts.CONTENT_FILTER_URI, Uri.encode(query));
// Restrict the query to contacts from '[e-mail]'
Uri.Builder builder = uri.buildUpon();
builder.appendQueryParameter(
    ContactsContract.DIRECTORY_PARAM_KEY, String.valueOf(ContactsContract.Directory.DEFAULT));
builder.appendQueryParameter(ContactsContract.RawContacts.ACCOUNT_NAME, "[e-mail]");
builder.appendQueryParameter(ContactsContract.RawContacts.ACCOUNT_TYPE, "com.google");
uri = builder.build();

这是最后一个 URI：

content://com.android.contacts/contacts/filter/jo?directory=0&account_name=example%40gmail.com&account_type=com.google

目前，这将显示手机上所有帐户的搜索结果。

---

注意：如果我使用 Contacts.CONTENT_URI 而不是 Contacts.CONTENT_FILTER_URI ，则指定目录/帐户可以按预期工作，但我不能再使用"类型到过滤器"样式搜索。

该文档确实指出：

目录最重要的用例是搜索。目录 提供程序应至少支持 Contacts.CONTENT_FILTER_URI 个。

谁能帮助指出我可能做错了什么？

Answer 1

我在Google的示例中添加了您的代码以进行联系人检索，并且进行了一些更改，它与我的Google for Work帐户完美配合。

我所做的更改是：

• 删除带有DIRECTORY_PARAM_KEY的行，因为我发现它没有任何区别
• 从 return 语句中删除了ContactsQuery.SELECTION，因为该常量会阻止显示"不可见"联系人。

更改是对联系人列表片段进行的.java

@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    // If this is the loader for finding contacts in the Contacts Provider
    // (the only one supported)
    if (id == ContactsQuery.QUERY_ID) {
        Uri contentUri;
        // There are two types of searches, one which displays all contacts and
        // one which filters contacts by a search query. If mSearchTerm is set
        // then a search query has been entered and the latter should be used.
        if (mSearchTerm == null) {
            // Since there's no search string, use the content URI that searches the entire
            // Contacts table
            contentUri = ContactsQuery.CONTENT_URI;
        } else {
            // Since there's a search string, use the special content Uri that searches the
            // Contacts table. The URI consists of a base Uri and the search string.
            contentUri = Uri.withAppendedPath(ContactsQuery.FILTER_URI, Uri.encode(mSearchTerm));
        }
        // HERE COMES YOUR CODE (except the DIRECTORY_PARAM_KEY line)
        Uri.Builder builder = contentUri.buildUpon();
        builder.appendQueryParameter(ContactsContract.RawContacts.ACCOUNT_NAME, "[e-mail]");
        builder.appendQueryParameter(ContactsContract.RawContacts.ACCOUNT_TYPE, "com.google");
        contentUri = builder.build();
        // Returns a new CursorLoader for querying the Contacts table. No arguments are used
        // for the selection clause. The search string is either encoded onto the content URI,
        // or no contacts search string is used. The other search criteria are constants. See
        // the ContactsQuery interface.
        return new CursorLoader(getActivity(),
                contentUri,
                ContactsQuery.PROJECTION,
                null, // I REMOVED SELECTION HERE
                null,
                ContactsQuery.SORT_ORDER);
    }
    Log.e(TAG, "onCreateLoader - incorrect ID provided (" + id + ")");
    return null;
}