如何解决“对于每个不适用于类型'程序包名称'的问题”？

Question

“我正在尝试在我的子项中为FAQ屏幕显示数据，但出现错误”我收到有关IDNA信息和mcontext的错误

MainActivity

        for (Feed feed : Utils.loadFeeds(this.getApplicationContext())) {
            mExpandableView.addView(new HeadingView(mContext, feed.getHeading()));
            for (Info info : feed.getInfoList()) {
                mExpandableView.addView(new InfoView(mContext, info));
            }
        }*/
//        setLoadMoreListener(mExpandableView);
    }

    private void setLoadMoreListener(ExpandablePlaceHolderView expandableView)  {
        mOnScrollListener =
                new PlaceHolderView.OnScrollListener() {
                    @Override
                    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                        super.onScrolled(recyclerView, dx, dy);
                        ExpandablePlaceHolderView.LayoutManager layoutManager = recyclerView.getLayoutManager();
                        if(layoutManager instanceof LinearLayoutManager) {
                            LinearLayoutManager linearLayoutManager = (LinearLayoutManager) layoutManager;
                            int totalItemCount = linearLayoutManager.getItemCount();
                            int lastVisibleItem = linearLayoutManager.findLastVisibleItemPosition();
                            if (!mIsLoadingMore
                                    && !mNoMoreToLoad
                                    && totalItemCount > 0
                                    && totalItemCount == lastVisibleItem + 1) {
                                mIsLoadingMore = true;
                                new Handler(Looper.getMainLooper())
                                        .post(new Runnable() {
                                    @Override
                                    public void run() {

                                        // do api call to fetch data

                                        // example of loading from file:
                                        for(Feed feed : Utils.loadFeeds(getApplicationContext())){
                                            mExpandableView.addView(new HeadingView(mContext, feed.getHeading()));
                                            //for (Map.Entry<String, List<Treet>> entry : treetsByAuthor.entrySet()){
                                            for(Info info : feed.getInfoList()) {
                                                mExpandableView.addView(new InfoView(mContext, info));
                                            }
                                        }
                                        mIsLoadingMore = false;
                                    }
                                });
                            }
                        }
                    }
                };
        expandableView.addOnScrollListener(mOnScrollListener);
    }
}

for(Feed feed : Utils.loadFeeds(getApplicationContext())){
                                            mExpandableView.addView(new HeadingView(mContext, feed.getHeading()));
                                            //for (Map.Entry<String, List<Treet>> entry : treetsByAuthor.entrySet()){
                                            for(Info info : feed.getInfoList()) {
                                                mExpandableView.addView(new InfoView(mContext, info));
                                            }
                                        }
                                        mIsLoadingMore = false;
                                    }
                                });

错误 错误：for-each不适用于表达式类型 必需：数组或java.lang.Iterable 找到：信息