获取具有类型过滤功能的 Android 联系人，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
• 将搜索结果仅限于特定的 Google/Gmail 帐户。

---

这就是我为光标构建 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 'example@gmail.com'
Uri.Builder builder = uri.buildUpon();
builder.appendQueryParameter(
    ContactsContract.DIRECTORY_PARAM_KEY, String.valueOf(ContactsContract.Directory.DEFAULT));
builder.appendQueryParameter(ContactsContract.RawContacts.ACCOUNT_NAME, "example@gmail.com");
builder.appendQueryParameter(ContactsContract.RawContacts.ACCOUNT_TYPE, "com.google");

uri = builder.build();

这是最终的 URI：

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

目前，这会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/帐户会按预期工作，但我不能再使用“类型过滤”样式搜索。

documentation 确实声明：

目录最重要的用例是搜索。目录 提供商预计至少支持Contacts.CONTENT_FILTER_URI。

谁能帮忙指出我做错了什么？

Answer 1

我在Google's example for contact retrieving 中添加了您的代码，并进行了一些更改，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。

对 ContactsListFragment.java

进行了更改

@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, "example@mycompany.com");
        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;
}