android - 我应该怎么做？解析查询适配器

Question

我想制作 SNS android 应用程序。用户发布的帖子和关系（“喜欢”）从我的 Parse.com 服务器加载。parseQueryAdapter我成功地使用和加载ListView了帖子Fragment。但是无法加载关系（“喜欢”）查询加载事件。

Answer 1

By default ParseQuery will not fetch relationship objects. You need to include relationship objects in ParseQuery.

ParseQuery<Post> postQuery= new ParseQuery<Post>("Post");
postQuery.include("likes");

Answer 2

ParseQueryAdapter<Post> mainAdapter;
ParseQueryAdapter.QueryFactory<Post> factory;
factory = new ParseQueryAdapter.QueryFactory<Post>() {
        @Override
        public ParseQuery<Post> create() {
            ParseQuery query = new ParseQuery("Post");
            query.whereEqualTo("Post_Liked", true);
            return query;
        }
    };
mainAdapter = new ParseQueryAdapter<Post>(this, factory) {
@Override
public View getItemView(final Post object, View v, ViewGroup parent) {
    if (v == null) {
        v = View.inflate(getContext(), R.layout.your_list_view, null);
    }
    return v;
}};

那么，为什么不直接让用户将帖子设置为“喜欢”或“不喜欢”，分别为真和假呢？