com.github.jdsjlzx.recyclerview.LRecyclerViewAdapter Java Examples

@Override
public void setSongsList(final ArrayList<SearchSong.DataBean.SongBean.ListBean> songListBeans) {
    mSongList.addAll(songListBeans);
    mAdapter = new SearchContentAdapter(mSongList, mSeek, getActivity(), Constant.TYPE_SONG);
    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mAdapter);
    mRecycler.setLayoutManager(manager);
    mRecycler.setAdapter(mLRecyclerViewAdapter);

    //点击播放
    SearchContentAdapter.setItemClick(position -> {
        SearchSong.DataBean.SongBean.ListBean dataBean = mSongList.get(position);
        Song song = new Song();
        song.setSongId(dataBean.getSongmid());
        song.setSinger(getSinger(dataBean));
        song.setSongName(dataBean.getSongname());
        song.setImgUrl(Api.ALBUM_PIC+dataBean.getAlbummid()+Api.JPG);
        song.setDuration(dataBean.getInterval());
        song.setOnline(true);
        song.setMediaId(dataBean.getStrMediaMid());
        song.setDownload(DownloadUtil.isExistOfDownloadSong(dataBean.getSongmid()));
        //网络获取歌曲地址
        mPresenter.getSongUrl(song);
    });
}
 

public void drawHorizontal(Canvas c, RecyclerView parent) {
    int childCount = parent.getChildCount();
    LRecyclerView recyclerView = (LRecyclerView) parent;
    LRecyclerViewAdapter adapter = (LRecyclerViewAdapter) parent.getAdapter();
    for (int i = 0; i < childCount; i++) {
        if ((recyclerView.isOnTop() && (adapter.isHeader(i) || adapter.isRefreshHeader(i))) || adapter.isFooter(i)) {
            c.drawRect(0, 0, 0, 0, mPaint);
        } else {
            final View child = parent.getChildAt(i);
            final int top = child.getBottom();
            final int bottom = top + verticalSpace;
            int left = child.getLeft();
            int right = child.getRight();
            c.drawRect(left, top, right, bottom, mPaint);
        }
    }
}
 

public void drawVertical(Canvas c, RecyclerView parent) {
    final int childCount = parent.getChildCount();
    LRecyclerView recyclerView = (LRecyclerView) parent;
    LRecyclerViewAdapter adapter = (LRecyclerViewAdapter) parent.getAdapter();
    for (int i = 0; i < childCount; i++) {
        if ((recyclerView.isOnTop() && (adapter.isHeader(i) || adapter.isRefreshHeader(i))) || adapter.isFooter(i)) {
            c.drawRect(0, 0, 0, 0, mPaint);
        } else {
            final View child = parent.getChildAt(i);
            final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
            final int top = child.getTop();
            final int bottom = child.getBottom() + verticalSpace;
            final int left = child.getRight() + params.rightMargin;
            final int right = left + horizontalSpace;
            c.drawRect(left, top, right, bottom, mPaint);
        }

    }
}
 

public void drawHorizontal(Canvas c, RecyclerView parent,LRecyclerViewAdapter adapter) {
    int count = parent.getChildCount();

    for (int i = 0; i < count; i++) {
        final View child = parent.getChildAt(i);
        final int top = child.getBottom();
        final int bottom = top + verticalSpacing;

        int left = child.getLeft() ;
        int right = child.getRight();

        int position = parent.getChildAdapterPosition(child);

        c.save();

        if (adapter.isRefreshHeader(position) || adapter. isHeader(position) || adapter.isFooter(position)) {
            c.drawRect(0, 0, 0, 0, mPaint);
        }else {
            c.drawRect(left, top, right, bottom, mPaint);
        }

        c.restore();
    }
}
 

public void drawVertical(Canvas c, RecyclerView parent,LRecyclerViewAdapter adapter) {
    int count = parent.getChildCount();

    for (int i = 0; i < count; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int top = child.getTop();
        //final int bottom = child.getBottom() + params.bottomMargin;
        final int bottom = child.getBottom() + verticalSpacing; //这里使用verticalSpacing 代替 params.bottomMargin
        final int left = child.getRight() + params.rightMargin;
        final int right = left + itemSplitMarginEven*2;

        int position = parent.getChildAdapterPosition(child);

        c.save();

        if (adapter.isRefreshHeader(position) || adapter. isHeader(position) || adapter.isFooter(position)) {
            c.drawRect(0, 0, 0, 0, mPaint);
        }else {
            c.drawRect(left, top, right, bottom, mPaint);
        }

        c.restore();
    }
}
 

@Override
public void searchAlbumSuccess(final List<Album.DataBean.AlbumBean.ListBean> albumList) {
    mAlbumList = new ArrayList<>();
    mAlbumList.addAll(albumList);
    mAdapter = new SearchContentAdapter(mAlbumList, mSeek, getActivity(), Constant.TYPE_ALBUM);
    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mAdapter);
    mRecycler.setLayoutManager(manager);
    mRecycler.setAdapter(mLRecyclerViewAdapter);
    SearchContentAdapter.setAlbumClick(position -> toAlbumContentFragment(mAlbumList.get(position)));
}
 

@Override
protected void setAdapterAndDecor(RecyclerView list) {
    final DoubleHeaderTestAdapter adapter = new DoubleHeaderTestAdapter(this.getActivity());
    decor = new DoubleHeaderDecoration(adapter);
    setHasOptionsMenu(true);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(adapter);
    list.setAdapter(mLRecyclerViewAdapter);
    list.addItemDecoration(decor, 1);
    list.addOnItemTouchListener(this);
}
 

@Override
protected void setAdapterAndDecor(RecyclerView list) {
    final StickyTestAdapter adapter = new StickyTestAdapter(this.getActivity());
    decor = new StickyHeaderDecoration(adapter);
    setHasOptionsMenu(true);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(adapter);
    list.setAdapter(mLRecyclerViewAdapter);

    list.addItemDecoration(decor, 1);
    list.addOnItemTouchListener(this);

}
 

@Override
protected void setAdapterAndDecor(RecyclerView list) {
    final InlineStickyTestAdapter adapter = new InlineStickyTestAdapter(this.getActivity());
    decor = new StickyHeaderDecoration(adapter, true);
    setHasOptionsMenu(true);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(adapter);
    list.setAdapter(mLRecyclerViewAdapter);
    list.addItemDecoration(decor, 1);
}
 

/**
 * 请使用本方法替代RecyclerView.ViewHolder的getLayoutPosition()方法
 *
 * @param recyclerView
 * @param holder
 * @return
 */
public static int getLayoutPosition(RecyclerView recyclerView, RecyclerView.ViewHolder holder) {
    RecyclerView.Adapter outerAdapter = recyclerView.getAdapter();
    if (outerAdapter != null && outerAdapter instanceof LRecyclerViewAdapter) {

        int headerViewCounter = ((LRecyclerViewAdapter) outerAdapter).getHeaderViewsCount();
        if (headerViewCounter > 0) {
            return holder.getLayoutPosition() - (headerViewCounter + 1);
        }
    }

    return holder.getLayoutPosition();
}
 

private static int getItemBottomSpacing(SpanLookup spanLookup, int verticalSpacing, int itemPosition, int childCount, LRecyclerViewAdapter adapter) {

        if(adapter.isHeader(itemPosition) || adapter.isRefreshHeader(itemPosition) || adapter.isFooter(itemPosition)) {
            return 0;
        } else {
            if (itemIsOnTheBottomRow(spanLookup, itemPosition, childCount)) {
                return 0;
            } else {
                return (int) (.5f * verticalSpacing);
            }
        }

    }
 

private static int getItemTopSpacing(SpanLookup spanLookup, int verticalSpacing, int itemPosition, int spanCount, int childCount, LRecyclerViewAdapter adapter) {
    if(adapter.isHeader(itemPosition) || adapter.isRefreshHeader(itemPosition) || adapter.isFooter(itemPosition)) {
        return 0;
    } else {
        if (itemIsOnTheTopRow(spanLookup, itemPosition, spanCount, childCount)) {
            return 0;
        } else {
            return (int) (.5f * verticalSpacing);
        }
    }

}
 

private boolean isLastColumn(RecyclerView parent, int pos, int spanCount) {
    LayoutManager layoutManager = parent.getLayoutManager();
    LRecyclerViewAdapter adapter = (LRecyclerViewAdapter) parent.getAdapter();
    if (layoutManager instanceof GridLayoutManager) {
        if ((pos - adapter.getHeaderViews().size()) % spanCount == 0)
            // 如果是最后一列，则不需要绘制右边
            return true;
    }
    return false;
}
 

/**
 * @param parent     RecyclerView
 * @param pos        当前item的位置
 * @param spanCount  每行显示的item个数
 * @param childCount child个数
 */
private boolean isLastRaw(RecyclerView parent, int pos, int spanCount, int childCount) {
    LayoutManager layoutManager = parent.getLayoutManager();
    LRecyclerViewAdapter adapter = (LRecyclerViewAdapter) parent.getAdapter();
    if (layoutManager instanceof GridLayoutManager) {
        int leftCount = childCount - childCount % spanCount;//3
        //leftCount:若childCount能被span整除为childCount否则为去掉最后一行的item总数
        if ((pos - adapter.getHeaderViews().size() + 1) > leftCount) {
            return true;
        }
    }
    return false;
}
 

private void applyItemVerticalOffsets(Rect outRect, int itemPosition, int childCount, int spanCount, SpanLookup spanLookup,LRecyclerViewAdapter adapter) {
    outRect.top = getItemTopSpacing(spanLookup, verticalSpacing, itemPosition, spanCount, childCount,adapter);
    outRect.bottom = getItemBottomSpacing(spanLookup, verticalSpacing, itemPosition, childCount,adapter);
}
 

@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, State state) {
    super.getItemOffsets(outRect, view, parent, state);
    int itemPosition = parent.getChildAdapterPosition(view);
    int spanCount = getSpanCount(parent);
    int childCount = parent.getAdapter().getItemCount();
    LRecyclerViewAdapter adapter = (LRecyclerViewAdapter) parent.getAdapter();
    if (adapter.isFooter(itemPosition) || adapter.isHeader(itemPosition) || adapter.isRefreshHeader(itemPosition)) {
        //header，footer不进行绘制
        outRect.set(0, 0, 0, 0);
    } else {
        if (!(parent.getLayoutManager() instanceof GridLayoutManager)) {
            //LinearLayoutManager
            if (itemPosition == (childCount - 2 - adapter.getHeaderViews().size()))
                outRect.set(0, 0, 0, 0);
            else
                outRect.set(0, 0, 0, verticalSpace);
        } else {
            //GridLayoutManager
            if (isLastRaw(parent, itemPosition, spanCount, childCount - 2 - adapter.getHeaderViews().size())) {
                //最后一行
                if (isLastColumn(parent, itemPosition, spanCount)) {
                    // 最后一行最后一列
                    outRect.set(0, 0, 0, verticalSpace);
                } else {
                    // 最后一行不是最后一列
                    outRect.set(0, 0, horizontalSpace, verticalSpace);
                }
            } else {
                //最后一列
                if (isLastColumn(parent, itemPosition, spanCount)) {
                    // 最后一列最后一行
                    outRect.set(0, 0, 0, verticalSpace);
                } else {
                    // 最后一列非最后一行
                    outRect.set(0, 0, horizontalSpace, verticalSpace);
                }
            }


        }

    }

}
 

@TargetApi(21)
    private void initView() {
        mRecyclerView.setLayoutManager(new LinearLayoutManager(activity));
        mDataAdapter = new DataAdapter<>(activity);
        mDataAdapter.setDataList(mData);
        lRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
        mRecyclerView.setAdapter(lRecyclerViewAdapter);
        mRecyclerView.setRefreshProgressStyle(ProgressStyle.TriangleSkewSpin);
        mRecyclerView.setOnRefreshListener(this);
        mRecyclerView.setOnLoadMoreListener(this);
        mRecyclerView.forceToRefresh();
        lRecyclerViewAdapter.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(View view, int position) {
                FabCloseEvent fabCloseEvent = new FabCloseEvent();
                fabCloseEvent.status = 1;
                EventBus.getDefault().post(fabCloseEvent);
                Intent i = new Intent(activity, DetailActivity.class);
                MyFavorite favorite = new MyFavorite();
                favorite.setTitle("Android");
                favorite.setContentDiscription(mData.get(position).desc);
                favorite.setUrl(mData.get(position).url);
                favorite.setFavoriteId(mData.get(position)._id);
                favorite.setCollectTime("");
                try {
                    favorite.setImgUrl(mData.get(position).images[0]);
                } catch (Exception e) {
                    Snackbar.make(mRecyclerView, "未获取到图片url", Snackbar.LENGTH_SHORT).show();
                    favorite.setImgUrl("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1494938304958&di=854d61b39d45b938505f573f6be7322f&imgtype=0&src=http%3A%2F%2Ff5.topit.me%2F5%2Fff%2F7e%2F11774047714a97eff5o.jpg");
                }finally {
                    Bundle bundle = new Bundle();
                    bundle.putSerializable(Config.MYFAVOTITE,favorite);
                    i.putExtras(bundle);
                    View sharedView = view.findViewById(R.id.iv_item_gank);
                    String transitionName = getString(R.string.transitionName);
                    ActivityOptions transitionActivityOptions = ActivityOptions.makeSceneTransitionAnimation(activity, sharedView, transitionName);
                    startActivity(i, transitionActivityOptions.toBundle());
                }
            }
        });

//
//        PackageManager packageManager = activity.getPackageManager();
//        try {
//            Drawable applicationIcon = packageManager.getApplicationIcon("com.zchz.app");
//            Toast toast = new Toast(activity);
//            ImageView imageView = new ImageView(activity);
//            imageView.setImageDrawable(applicationIcon);
//            toast.setView(imageView);
//            toast.setDuration(Toast.LENGTH_LONG);
//            toast.show();
//        } catch (PackageManager.NameNotFoundException e) {
//            e.printStackTrace();
//        }
    }
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_ll_activity);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    mRecyclerView = (LRecyclerView) findViewById(R.id.list);
    mRecyclerView.setLayoutManager(new GridLayoutManager(this,2));

    mVisitables = getData();
    mMainAdapter = new MainAdapter(new ListTypeFactory(), mVisitables);
    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mMainAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);

    mLRecyclerViewAdapter.setSpanSizeLookup(new LRecyclerViewAdapter.SpanSizeLookup() {
        @Override
        public int getSpanSize(GridLayoutManager gridLayoutManager, int position) {
            Object item = mVisitables.get(position);
            return (item instanceof HotList || item instanceof ProductList || item instanceof Category) ? gridLayoutManager.getSpanCount() : 1;
        }
    });

    mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this));

    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    mRecyclerView.refreshComplete(10);
                }
            },1000);
        }
    });

    mRecyclerView.refresh();
    mRecyclerView.setLoadMoreEnabled(false);
    //是否允许嵌套滑动
    mRecyclerView.setNestedScrollingEnabled(false);

}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_ll_activity);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    mRecyclerView = (LRecyclerView) findViewById(R.id.list);


    mDataAdapter = new ExpandableItemAdapter(this);
    mDataAdapter.setDataList(generateData());

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);

    DividerDecoration divider = new DividerDecoration.Builder(this)
            .setHeight(R.dimen.default_divider_height)
            .setPadding(R.dimen.default_divider_padding)
            .setColorResource(R.color.split)
            .build();
    //mRecyclerView.setHasFixedSize(true);
    mRecyclerView.addItemDecoration(divider);

    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    //add a HeaderView
    View header = LayoutInflater.from(this).inflate(R.layout.sample_header,(ViewGroup)findViewById(android.R.id.content), false);

    mLRecyclerViewAdapter.addHeaderView(header);
    mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this));

    //禁用下拉刷新功能
    mRecyclerView.setPullRefreshEnabled(false);

    //禁用自动加载更多功能
    //mRecyclerView.setLoadMoreEnabled(false);

    //add a FooterView
    //mLRecyclerViewAdapter.addFooterView(sampleFooter);

}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_alipay_home);

    StatusBarUtil.setColor(AlipayHomeActivity.this, ContextCompat.getColor(this,R.color.blue_black), 0);

    //AppBarLayout
    abl_bar = (AppBarLayout) findViewById(R.id.abl_bar);
    abl_bar.addOnOffsetChangedListener(this);
    //顶部搜索布局
    include_toolbar_search = findViewById(R.id.include_toolbar_search);
    //扫一扫 付一付 聊一聊 咻一咻 的小图标布局
    include_toolbar_small = findViewById(R.id.include_toolbar_small);


    //顶部搜索布局遮罩
    v_toolbar_search_mask = findViewById(R.id.v_toolbar_search_mask);
    //扫一扫 付一付 聊一聊 咻一咻 的大图标布局遮罩
    v_title_big_mask = findViewById(R.id.v_title_big_mask);
    //扫一扫 付一付 聊一聊 咻一咻 的大图标布局遮罩
    v_toolbar_small_mask = findViewById(R.id.v_toolbar_small_mask);
    //背景颜色
    mMaskColor = getResources().getColor(R.color.blue_dark);


    mRecyclerView = findViewById(R.id.list);
    //init data
    ArrayList<ItemModel> dataList = new ArrayList<>();
    for (int i = 0; i < 10; i++) {
        ItemModel itemModel = new ItemModel();
        itemModel.title = "item" + i;
        dataList.add(itemModel);
    }

    mDataAdapter = new DataAdapter(this);
    mDataAdapter.setDataList(dataList);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    //禁用自动加载更多功能
    mRecyclerView.setLoadMoreEnabled(false);

    SampleFooter sampleFooter = new SampleFooter(this);
    //add a FooterView
    mLRecyclerViewAdapter.addFooterView(sampleFooter);

    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {

            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    mRecyclerView.refreshComplete(10);
                }
            }, 800);

        }
    });

}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_ll_activity);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    mRecyclerView = (LRecyclerView) findViewById(R.id.list);


    mDataAdapter = new CommentExpandAdapter(this,mRecyclerView);
    mDataAdapter.setMode(ExpandableRecyclerAdapter.MODE_ACCORDION);
    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);

    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    mRecyclerView.setRefreshProgressStyle(ProgressStyle.BallSpinFadeLoader);
    mRecyclerView.setArrowImageView(R.drawable.ic_pulltorefresh_arrow);

    mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this));

    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {
            mCurrentCounter = 0;
            isRefresh = true;
            requestData();
        }
    });

    mRecyclerView.refresh();

    //不要在调用下面代码
    /*mLRecyclerViewAdapter.setOnItemClickListener(new OnItemClickListener() {
        @Override
        public void onItemClick(View view, int position) {
            //ItemModel item = mDataAdapter.getDataList().get(position);
            //AppToast.showShortText(ExpandableRecyclerViewOneActivity.this, item.title);
        }

        @Override
        public void onItemLongClick(View view, int position) {
            //ItemModel item = mDataAdapter.getDataList().get(position);
            //AppToast.showShortText(ExpandableRecyclerViewOneActivity.this, "onItemLongClick - " + item.title);
        }
    });*/

}
 

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_ll_activity);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    mRecyclerView = (LRecyclerView) findViewById(R.id.list);

    //setLayoutManager must before setAdapter
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    //init data
    ArrayList<ItemModel> dataList = new ArrayList<>();
    for (int i = 0; i < 16; i++) {
        ItemModel itemModel = new ItemModel();
        itemModel.title = "item" + i;
        dataList.add(itemModel);
    }

    mItemTouchHelper = new ItemTouchHelper(mCallback);
    mItemTouchHelper.attachToRecyclerView(mRecyclerView);

    mDataAdapter = new DataAdapter(this);
    mDataAdapter.setDataList(dataList);
    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);

    DividerDecoration divider = new DividerDecoration.Builder(this)
            .setHeight(R.dimen.default_divider_height)
            .setPadding(R.dimen.default_divider_padding)
            .setColorResource(R.color.split)
            .build();
    mRecyclerView.addItemDecoration(divider);
    mRecyclerView.setHasFixedSize(true);


    mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this));

    //add a FooterView
    mLRecyclerViewAdapter.addFooterView(new SampleFooter(this));

    //禁用下拉刷新功能
    mRecyclerView.setPullRefreshEnabled(false);

    //禁用自动加载更多功能
    mRecyclerView.setLoadMoreEnabled(false);

}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_ll_activity);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    mRecyclerView = (LRecyclerView) findViewById(R.id.list);
    mRecyclerView.setNestedScrollingEnabled(false);

    mShopAdapter = new ShopAdapterBase(this,mGoodsList);

    //setLayoutManager must before setAdapter
    GridLayoutManager layoutManager = new GridLayoutManager(this, 2);
    mRecyclerView.setLayoutManager(layoutManager);

    initData();

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mShopAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);
    mShopAdapter.addAll(mItemModels);

    DividerDecoration divider = new DividerDecoration.Builder(this)
            .setHeight(R.dimen.default_divider_height)
            .setPadding(R.dimen.default_divider_padding)
            .setColorResource(R.color.split)
            .build();

    mRecyclerView.setHasFixedSize(true);
    mRecyclerView.addItemDecoration(divider);

    mLRecyclerViewAdapter.setSpanSizeLookup(new LRecyclerViewAdapter.SpanSizeLookup() {
        @Override
        public int getSpanSize(GridLayoutManager gridLayoutManager, int position) {
            MultipleItem item = mShopAdapter.getDataList().get(position);
            if (item.getItemType() == MultipleItem.LIST) {
                return gridLayoutManager.getSpanCount();
            } else {
                return 1;
            }

        }
    });

    mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this));

    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    mRecyclerView.refreshComplete(10);
                }
            },1000);
        }
    });

    mRecyclerView.refresh();

    //是否允许嵌套滑动
    mRecyclerView.setNestedScrollingEnabled(false);

}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_ll_activity);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);


    mRecyclerView = (LRecyclerView) findViewById(R.id.list);

    //setLayoutManager must before setAdapter
    GridLayoutManager manager = new GridLayoutManager(this, 2);
    mRecyclerView.setLayoutManager(manager);

    mDataAdapter = new DataAdapter(this);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);

    //设置头部加载颜色
    mRecyclerView.setHeaderViewColor(R.color.colorAccent, R.color.dark ,android.R.color.white);
    //设置底部加载颜色
    mRecyclerView.setFooterViewColor(R.color.colorAccent, R.color.dark ,android.R.color.white);
    //设置底部加载文字提示
    mRecyclerView.setFooterViewHint("拼命加载中","已经全部为你呈现了","网络不给力啊，点击再试一次吧");

    int spacing = getResources().getDimensionPixelSize(R.dimen.dp_4);
    mRecyclerView.addItemDecoration(SpacesItemDecoration.newInstance(spacing, spacing, manager.getSpanCount(), Color.GRAY));

    //根据需要选择使用GridItemDecoration还是SpacesItemDecoration
    GridItemDecoration divider = new GridItemDecoration.Builder(this)
            .setHorizontal(R.dimen.default_divider_padding)
            .setVertical(R.dimen.default_divider_padding)
            .setColorResource(R.color.split)
            .build();
    //mRecyclerView.addItemDecoration(divider);

    mRecyclerView.setHasFixedSize(true);

    mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this));

    //设置span，自己可以体验效果
    /*mLRecyclerViewAdapter.setSpanSizeLookup(new LRecyclerViewAdapter.SpanSizeLookup() {
        @Override
        public int getSpanSize(GridLayoutManager gridLayoutManager, int position) {
            if (position % 4 == 0) {
                return gridLayoutManager.getSpanCount();
            } else {
                return 1;
            }

        }
    });*/


    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {
            mCurrentCounter = 0;
            mDataAdapter.clear();
            requestData();
        }
    });

    mRecyclerView.setOnLoadMoreListener(new OnLoadMoreListener() {
        @Override
        public void onLoadMore() {
            if (mCurrentCounter < TOTAL_COUNTER) {
                // loading more
                requestData();
            } else {
                //the end
                mRecyclerView.setNoMore(true);
            }
        }
    });

    mRecyclerView.refresh();

}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_collapsing_toolbar_layout);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    mRecyclerView = (LRecyclerView) findViewById(R.id.list);

    //init data
    ArrayList<ItemModel> dataList = new ArrayList<>();

    for (int i = 0; i < 10; i++) {

        ItemModel item = new ItemModel();
        item.id = i;
        item.title = "item" + i;
        dataList.add(item);
    }

    mCurrentCounter = dataList.size();

    mDataAdapter = new DataAdapter(this);
    mDataAdapter.addAll(dataList);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);

    DividerDecoration divider = new DividerDecoration.Builder(this)
            .setHeight(R.dimen.default_divider_height)
            .setPadding(R.dimen.default_divider_padding)
            .setColorResource(R.color.split)
            .build();

    mRecyclerView.setHasFixedSize(true);
    mRecyclerView.addItemDecoration(divider);

    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {
            mCurrentCounter = 0;
            mDataAdapter.clear();
            requestData();
        }
    });

    mRecyclerView.setOnLoadMoreListener(new OnLoadMoreListener() {
        @Override
        public void onLoadMore() {
            if (mCurrentCounter < TOTAL_COUNTER) {
                // loading more
                requestData();
            } else {
                //the end
                mRecyclerView.setNoMore(true);
            }
        }
    });

}
 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.sample_ll_activity);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    mRecyclerView = (LRecyclerView) findViewById(R.id.list);

    mDataAdapter = new DataAdapter(this);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);

    //setLayoutManager
    StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager( 2, StaggeredGridLayoutManager.VERTICAL);
    layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
    //防止item位置互换
    layoutManager.setGapStrategy(StaggeredGridLayoutManager.GAP_HANDLING_NONE);
    mRecyclerView.setLayoutManager(layoutManager);

    mLRecyclerViewAdapter.addHeaderView(new SampleHeader(this));

    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {
            mCurrentCounter = 0;
            mDataAdapter.clear();
            requestData();
        }
    });

    mRecyclerView.setOnLoadMoreListener(new OnLoadMoreListener() {
        @Override
        public void onLoadMore() {
            if (mCurrentCounter < TOTAL_COUNTER) {
                // loading more
                requestData();
            } else {
                //the end
                mRecyclerView.setNoMore(true);
            }
        }
    });


    mRecyclerView.refresh();

}