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Android 发布时间：2022-04-28 发布网站：大佬教程 code.js-code.com

大佬教程收集整理的这篇文章主要介绍了android – 如何滚动到recyclerview内的偏移量？，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

如何使用recyclelerview内的偏移滚动到特定位置？

我用过

public linearlayoutmanager linearlayoutmanager;
linearlayoutmanager.scrollToPositionWithOffset(0,scrolled);

我也用过scrollto

@H_453_9@mRecyclerView.scrollTo(0,scrolled);

我也使用了smoothScrolltoposition

@H_453_9@mRecyclerView.smoothScrollToPosition(scrolled);

但似乎没有人为我工作.

如果有人对此有所了解,请帮助我

updatE

功能我在哪里设置我的Recyclerview的适配器

public void Nearby_Search_requestData() {
    OkhttpClient client = new OkhttpClient();
    client = MySSLTrust.trustcert(getActivity());

    RestAdapter adapter = new RestAdapter.builder().setEndpoint(SEARCH_MERCHANT_ENDPOint).setClient(new OkClient(client)).build();
    final RetrofiTinterface api = adapter.create(RetrofiTinterface.class);
    if (api != null) {
        api.post_Nearby_Search(page.toString(),new CallBACk<Nearby_Search_All>() {
            @Override
            public void success(final Nearby_Search_All server_data,Response responsE) {
                if (server_data.getsuccess() == 1) {
                    if (server_data.getResults().size() == 0) {
                        if (page != 0) {
                            mRecyclerView.scrollToPosition(firstVis);
                        } else {
                            Log.d("hii","zero");
            //                NO_MERCHANT.setVisibility(View.VISIBLE);
                            mAdapter = new searchrecyclerviewadapter(getActivity(),data,font);
                            mRecyclerView.setAdapter(mAdapter);
                        }
                    } else {
                        Log.d("scroll","hii");
            //            NO_MERCHANT.setVisibility(View.INVISIBLE);
                        if (server_data.getSize() > server_data.getResults().size()) {
                            stay_on_this_page = true;
                        } else {
                            stay_on_this_page = false;
                        }
                        if (page == 0) {
                            prev_@R_615_10586@l = 0;
                            data.clear();
                            Log.d("hii","Page is zero " + prev_@R_615_10586@l);
                            list_size = server_data.getSize();
                        } else {
                            Log.d("hii","prev_@R_615_10586@l is " + prev_@R_615_10586@l + " Size is " + server_data.getSize() + " page is " + pagE);
                            prev_@R_615_10586@l = server_data.getSize() * page;
                            Log.d("hii","Now prev_@R_615_10586@l is " + prev_@R_615_10586@l);
                        }
                        @R_615_10586@l_curr = server_data.getResults().size();

                        Log.d("hii","first place is " + server_data.getResults().get(0).getShop_name());

                        for (int i = 0; i < @R_615_10586@l_curr; i++) {
                            information current = new information();
                            current.@R_772_10283@e = server_data.getResults().get(i).getShop_name();
                            String street = server_data.getResults().get(i).getAddress().getStreet();
                            String area = server_data.getResults().get(i).getAddress().getArea();
                            current.Address = street + " " + area;
                            String[] splited = area.split(",");
                            current.area1 = splited[1];
                            current.type = server_data.getResults().get(i).getShop_type();
                            current.rating = server_data.getResults().get(i).getrating();
                            current.distance = server_data.getResults().get(i).getDistance();
                            current.jeb_no = server_data.getResults().get(i).getjeb_no();
                            current.@R_615_10586@l_photos = server_data.getResults().get(i).get@R_615_10586@l_photos();
                            if (current.@R_615_10586@l_photos  == 0) {

                            } else if (current.@R_615_10586@l_photos  == 1) {
                                current.photo_1 = server_data.getResults().get(i).getPhotos().getPhoto_1();
                            } else if (current.@R_615_10586@l_photos  == 2) {
                                current.photo_1 = server_data.getResults().get(i).getPhotos().getPhoto_1();
                                current.photo_2 = server_data.getResults().get(i).getPhotos().getPhoto_2();
                            } else {
                                current.photo_1 = server_data.getResults().get(i).getPhotos().getPhoto_1();
                                current.photo_2 = server_data.getResults().get(i).getPhotos().getPhoto_2();
                            }
                            data.add(current);
                        }
                        if (adapterinitialised) {
                            mAdapter.notifyDataSetChanged();
                        } else {
                            mAdapter = new searchrecyclerviewadapter(getActivity(),font);
                          //  mAdapter.setClickListener(Search.class);
                            mRecyclerView.setAdapter(mAdapter);

                            adapterinitialised = true;
                        }
                    }
                 //   mRecyclerView.scrollToPosition(firstVis);
                    Log.d("scroll","hee");
                    scrolled = scrolled + 10;
                    Log.d("scroll","scrolled: " + scrolled);
                    // ALL BELOW CODE I HAVE TRIED FOR SCROLLING BUT NONE WAS HelPFUL
                /*    mRecyclerView.post(new Runnable() {
                        @Override
                        public void run() {
                            mRecyclerView.smoothScrollToPosition(scrolled);

                            // or do mRecyclerView.scrollTo(0,scrolled);
                        }
                    });
                    */
                 //   l.scrollToPositionWithOffset(0,scrolled);
                //    mRecyclerView.smoothScrollToPosition(scrolled);
                //    mRecyclerView.scrollBy(0,scrolled);
                //    l.scrollToPosition();
                //        mRecyclerView.scrollToPosition(scrolled);
                //    mRecyclerView.smoothScrollBy(0,scrolled);
                //    mRecyclerView.scrollBy(0,10);
                //    mRecyclerView.scrollTo(0,10);

                } else {
                    Log.d("hii",server_data.getmessage());
                    Toast.makeText(getActivity(),server_data.getmessage(),Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void failure(RetrofitError retrofitError) {
                Log.d("hii","failure");
                Log.e("hii",retrofitError.toString());
                Toast.makeText(getActivity(),retrofitError.toString(),Toast.LENGTH_SHORT).show();
            }
        });
    } else {
        Log.d("hii","api null");
    }
}

解决方法

这是我的答案.组

linearlayoutmanager linearlayoutmanager = new linearlayoutmanager(context);
linearlayoutmanager.setOrientation(linearlayoutmanager.VERTICAL);//or HORIZONTAL
recyclerView.setLayoutManager(linearlayoutmanager);
adapter = new Adapter(...);
recyclerView.setAdapter(adapter);

这提供了RecyclerView,适配器和数据的方向(替换…与上下文,列表,数组或所需的其他数据).比设定

linearlayoutmanager.scrollToPositionWithOffset(position,offset);

现在有趣的事情：

>这将滚动到位置并将其放置在列表的顶部,以防VERTICAL线性布局管理器在左侧与HORIZONTAL
>如果偏移为正,则VERTICAL布局管理器将向下滚动此位置的偏移量(以像素为单位)(向右使用HORIZONTAL布局管理器)
>如果position为0且offset为正,则不会发生任何事情,因为RecyclerView没有任何项目位于0位置的顶部(左侧是HORIZONTAL布局管理器)
>如果position为0且offset为负,则VERTICAL布局管理器将向上滚动0位置偏移(以像素为单位)(向左与HORIZONTAL)
>如果RecyclerView的高度(HORIZONTAL方向的宽度)小于屏幕尺寸,也不会发生任何事情
>如果要滚动到的位置是最后一个或接近结束它的高度(在HORIZONTAL方向的情况下的宽度)相对较小,它也将错误地滚动

希望这将通过RecyclerView的布局管理器为您阐明情况