Recycler视图不滚动

Question

我之前在少数设备上测试了我的应用。 Genymotion（nexus 4 api 16），samsung i9500（api 21），samsung i8190（api 16），nexus 9（api 23），全部工作。但是今天我在三星i8262（api 16）上尝试了测试应用程序，并且在我的应用程序中遇到所有回收站视图中的滚动工作。大多数带有recycler视图的xml都将它作为root和single元素。我不是在看这个问题的原因。有人见过同样的事吗？

public class NewsFragment extends Fragment {

    int currentLastArticle = 0;
    int count;
    ArrayList<Article> news = new ArrayList<>();

    View view;
    RecyclerView rv;
    LinearLayoutManager llm;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.recycler_view, container, false);

        view.setPadding(0, Decorator.getHeightBasedOnIPhone960(89), 0, 0);

        rv = (RecyclerView) view.findViewById(R.id.recycler);
        llm = new LinearLayoutManager(activity);
        rv.setLayoutManager(llm);
        rv.addItemDecoration(new Divider(activity));
        rv.setOnScrollListener(new EndlessRecyclerScrollListener(llm) {
            @Override
            public void onLoadMore(int current_page) {
                new GetNewsTask().execute(20, currentLastArticle+=20);
            }
        });

        new GetNewsTask().execute(20, currentLastArticle);

        return view;
    }

    class NewsRecyclerAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

        LayoutInflater inflater;

        public NewsRecyclerAdapter(Context context) {
            inflater = ((AppCompatActivity)context).getLayoutInflater();
        }

        @Override
        public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            return new NewsVH(inflater.inflate(R.layout.news_item, parent, false));
        }

        @Override
        public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
            ((NewsVH)holder).set(position);
        }

        @Override
        public int getItemCount() {
            return news.size();
        }

        private class NewsVH extends RecyclerView.ViewHolder{

            Text title;
            Text time;
            ImageView image;
            View itemView;

            public NewsVH(View itemView) {
                super(itemView);
                this.itemView = itemView;
                itemView.setPadding(
                        Decorator.getWidthBasedOnIPhone640(8),
                        Decorator.getHeightBasedOnIPhone960(8),
                        Decorator.getWidthBasedOnIPhone640(8),
                        Decorator.getHeightBasedOnIPhone960(8)
                );
                init(itemView);
            }

            private void init(View view) {
                title = (Text) view.findViewById(R.id.title);
                title.setTextSize(TypedValue.COMPLEX_UNIT_PX, Decorator.getHeightBasedOnIPhone960(24));
                Decorator.setMargins(title, 0, 8, 0, 0);
                time = (Text) view.findViewById(R.id.time);
                time.setTextSize(TypedValue.COMPLEX_UNIT_PX, Decorator.getHeightBasedOnIPhone960(20));
                time.setTextStyle(font.font133l);
                image = (ImageView) view.findViewById(R.id.image);
                image.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
                Decorator.setSquareSizeAndMargins(image, 176, 0, 0, 8, 8);
            }

            public void set(final int position) {
                Article article = news.get(position);
                title.setText(article.title());
                time.setText(article.time());
                String image = article.files().length == 0 ? "null" : article.files()[0].url480();
                ImageLoader.getInstance().displayImage(image, this.image, Decorator.getImageOptions(svg.zelen.drawable()));
                itemView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        ArticleFragment fragment = new ArticleFragment();
                        Bundle bundle = new Bundle();
                        bundle.putParcelable(getString(R.string.article), news.get(position));
                        fragment.setArguments(bundle);
                        activity.getSupportFragmentManager()
                                .beginTransaction()
                                .addToBackStack(Flags.CATALOG_BACKSTACK)
                                .replace(R.id.container, fragment, fragment.getClass().getCanonicalName())
                                .commit();
                    }
                });
            }
        }
    }

    class GetNewsTask extends AsyncTask<Integer, String, JSONArray> {

        int lowTreshold;
        int highTreshold;

        @Override
        protected void onPreExecute() {
            ((ProgressSwitcher)activity).showProgress();
        }

        @Override
        protected JSONArray doInBackground(Integer... params) {
            lowTreshold = params[1];
            highTreshold = params[0];

            String newsString = Web.httpGet(
                    Web.url.domain +
                            Web.url.content +
                            "/" +
                            highTreshold +
                            "/" +
                            lowTreshold
            );

            JSONArray jNewsArray = new JSONArray();

            try {
                JSONObject jNews = new JSONObject(newsString);
                jNewsArray = jNews.getJSONArray("content");
                count = jNews.getInt("count");
            } catch (JSONException e) {
                e.printStackTrace();
            }


            return jNewsArray;
        }

        @Override
        protected void onPostExecute(JSONArray jArray) {
            ((ProgressSwitcher)activity).hideProgress();
            int length = jArray.length();
            for (int i = 0; i < length; i++) {
                try {
                    news.add(new Article(jArray.getJSONObject(i)));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
            if (rv.getAdapter() == null) {
                rv.setAdapter(new NewsRecyclerAdapter(activity));
            } else {
                rv.getAdapter().notifyDataSetChanged();
            }
        }
    }
}

例如，

。 R.layout.recyclerview是

<android.support.v7.widget.RecyclerView
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:background="@color/white"
    android:id="@+id/recycler"
    xmlns:android="http://schemas.android.com/apk/res/android" />

它是我应用中的众多回收商之一。他们一切都不滚动。