package cn.sinata.xldutils.fragment;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.TextView;
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import androidx.annotation.Nullable;
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import androidx.core.content.ContextCompat;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import com.yqritc.recyclerviewflexibledivider.HorizontalDividerItemDecoration;
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import cn.sinata.xldutils.R;
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import cn.sinata.xldutils.adapter.HFRecyclerAdapter;
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import cn.sinata.xldutils.utils.DensityUtil;
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import cn.sinata.xldutils.view.SwipeRefreshRecyclerLayout;
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/**
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*
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*/
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public abstract class RecyclerViewFragment extends BaseFragment {
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protected SwipeRefreshRecyclerLayout mSwipeRefreshLayout;
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private RecyclerView.ItemDecoration defaultItemDecoration;
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private TextView emptyView;
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protected int DEFAULT_MARGIN_DIVIDER = 0;
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protected int DEFAULT_DIVIDER = 1;
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protected RecyclerView recyclerView;
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protected abstract RecyclerView.Adapter setAdapter();
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/**
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* 下拉刷新
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*/
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protected void pullDownRefresh() {
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}
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/**
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* 加载更多
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*/
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protected void loadMore() {
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}
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/**
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* @return 默认上拉下拉同时存在
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*/
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protected SwipeRefreshRecyclerLayout.Mode getMode() {
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return SwipeRefreshRecyclerLayout.Mode.Both;
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}
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/**
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* @return 默认垂直布局。
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*/
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protected RecyclerView.LayoutManager getLayoutManager() {
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return new LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false);
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}
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@Override
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protected final int getContentViewLayoutID() {
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return R.layout.fragment_vertical_linear_recyclerview;
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}
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@Override
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public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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mSwipeRefreshLayout = mHolder.bind(R.id.mSwipeRefreshLayout);
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recyclerView = mHolder.bind(R.id.mRecyclerView);
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emptyView = mHolder.bind(R.id.emptyView);
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emptyView.setVisibility(View.GONE);
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emptyView.setTextColor(getLoadMoreTextColor());
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defaultItemDecoration = new HorizontalDividerItemDecoration.Builder(context)
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.colorResId(R.color.dividing_line_color)
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.marginResId(R.dimen.activity_horizontal_margin, R.dimen.activity_horizontal_margin)
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.size(1)
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.build();
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//默认分割线
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setItemDecoration(DEFAULT_DIVIDER);
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mSwipeRefreshLayout.setLayoutManager(getLayoutManager());
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mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshRecyclerLayout.OnRefreshListener() {
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@Override
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public void onRefresh() {
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pullDownRefresh();
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}
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@Override
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public void onLoadMore() {
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loadMore();
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}
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});
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mSwipeRefreshLayout.setMode(getMode());
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if (setAdapter() != null) {
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final RecyclerView.Adapter adapter = setAdapter();
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mSwipeRefreshLayout.setAdapter(adapter);
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dataObserver = new RecyclerView.AdapterDataObserver() {
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@Override
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public void onChanged() {
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super.onChanged();
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RecyclerView.Adapter a = mSwipeRefreshLayout.getRecyclerView().getAdapter();
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if (a == null) {
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return;
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}
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int size = a.getItemCount();
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if (a instanceof HFRecyclerAdapter) {
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size = ((HFRecyclerAdapter) a).getDataItemCount();
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}
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if (size <= 0) {
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if (useDefaultEmptyView()) {
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emptyView.setVisibility(View.VISIBLE);
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mSwipeRefreshLayout.setVisibility(View.GONE);
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} else {
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emptyView.setVisibility(View.GONE);
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mSwipeRefreshLayout.setVisibility(View.VISIBLE);
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}
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} else {
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emptyView.setVisibility(View.GONE);
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mSwipeRefreshLayout.setVisibility(View.VISIBLE);
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}
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}
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};
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adapter.registerAdapterDataObserver(dataObserver);
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emptyView.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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showDialog();
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pullDownRefresh();
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}
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});
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}
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}
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RecyclerView.AdapterDataObserver dataObserver;
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@Override
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public void onDestroyView() {
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try {
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RecyclerView.Adapter adapter = getRecyclerView().getAdapter();
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if (dataObserver != null && adapter != null) {
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adapter.unregisterAdapterDataObserver(dataObserver);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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super.onDestroyView();
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}
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protected void setEmptyViewText(CharSequence cs) {
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emptyView.setText(cs);
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}
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protected void setEmptyViewClick(View.OnClickListener listener) {
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emptyView.setOnClickListener(listener);
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}
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/**
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* 设置刷新状态
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*
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* @param refreshing 刷新状态
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*/
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public void setRefreshing(boolean refreshing) {
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mSwipeRefreshLayout.setRefreshing(refreshing);
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}
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/**
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* 刷新完成
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*/
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public void onRefreshCompleted() {
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mSwipeRefreshLayout.setRefreshing(false);
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}
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protected void setLoadMoreText(CharSequence text) {
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mSwipeRefreshLayout.setLoadMoreText(text);
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}
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/**
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* 设置分割线,只能设置1种分割线
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*
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* @param itemDecoration 样式
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*/
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protected void setItemDecoration(RecyclerView.ItemDecoration itemDecoration) {
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if (itemDecoration == null) {
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try {
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mSwipeRefreshLayout.getRecyclerView().removeItemDecoration(defaultItemDecoration);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return;
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}
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if (defaultItemDecoration != null) {
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mSwipeRefreshLayout.getRecyclerView().removeItemDecoration(defaultItemDecoration);
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}
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defaultItemDecoration = itemDecoration;
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mSwipeRefreshLayout.addItemDecoration(defaultItemDecoration);
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}
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/**
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* 添加分割线，可以是多种。比如网格的横竖2中分割线，不会覆盖。
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*
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* @param itemDecoration 分割线
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*/
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protected void addItemDecoration(RecyclerView.ItemDecoration itemDecoration) {
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if (itemDecoration == null) {
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return;
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}
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mSwipeRefreshLayout.addItemDecoration(itemDecoration);
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}
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protected void setItemDecoration(int type) {
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HorizontalDividerItemDecoration itemDecoration;
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if (type == DEFAULT_MARGIN_DIVIDER) {
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itemDecoration = new HorizontalDividerItemDecoration.Builder(context)
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.margin(DensityUtil.dip2px(context, 16))
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.size(1)
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.color(ContextCompat.getColor(context, R.color.dividing_line_color))
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.build();
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} else {
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itemDecoration = new HorizontalDividerItemDecoration.Builder(context)
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.size(1)
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.color(ContextCompat.getColor(context, R.color.dividing_line_color))
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.build();
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}
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setItemDecoration(itemDecoration);
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}
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public RecyclerView getRecyclerView() {
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return mSwipeRefreshLayout.getRecyclerView();
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}
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protected boolean useDefaultEmptyView() {
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return true;
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}
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protected int getLoadMoreTextColor() {
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return Color.WHITE;
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}
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}
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