主题详情页开发完成

app/build.gradle

    compile 'com.android.support:appcompat-v7:26.1.0'
    compile 'com.android.support:design:26.1.0'
    //    compile 'com.nineoldandroids:library:2.4.0'
    compile 'com.github.bumptech.glide:glide:4.1.1'
//    compile 'com.github.bumptech.glide:glide:4.1.1'
    compile 'com.github.bumptech.glide:glide:4.2.0'
    compile 'me.iwf.photopicker:PhotoPicker:0.9.12@aar'
    compile 'top.zibin:Luban:1.1.2'
    compile 'com.ms-square:expandableTextView:0.1.4'

app/src/main/java/com/electric/chargingpile/activity/TopicDetailActivity.java

package com.electric.chargingpile.activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.electric.chargingpile.R;
import com.electric.chargingpile.adapter.TopicDetailAdapter;
import com.electric.chargingpile.application.MainApplication;
import com.electric.chargingpile.data.ChatRecommendBean;
import com.electric.chargingpile.data.HomePageBean;
import com.electric.chargingpile.iview.RecyclerItemTypeClickListener;
import com.electric.chargingpile.manager.ProfileManager;
import com.electric.chargingpile.util.CommonParams;
import com.electric.chargingpile.util.JsonUtils;
import com.electric.chargingpile.util.LoadingDialog;
import com.electric.chargingpile.util.NetUtil;
import com.electric.chargingpile.util.ToastUtil;
import com.zhy.http.okhttp.OkHttpUtils;
 */
public class TopicDetailActivity extends AppCompatActivity implements View.OnClickListener {
    private static final String TAG = "TopicDetailActivity";
    public static final int CLICK_PUBLISH_BTN_TOPIC = 1011;
    private TextView titleTextView;
    private XRefreshView xRefreshView;
    private RecyclerView recyclerView;
    private LoadingDialog loadingDialog;
    private int topicId;
    private int sort = 1;
    private int page = 1;
    private TopicDetailAdapter topicDetailAdapter;
    private StaggeredGridLayoutManager staggeredGridLayoutManager;
    public boolean isFirst = false;
    private ImageView chatPublishTips;
    private ImageView chatPublishIcon;
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        if (NetUtil.CheckNetwork(this)) {
            xRefreshView.startRefresh();
            requestData();
            requestData("1");
        } else {
            // TODO by hyg
        }
    private void initView() {
        topicId = getIntent().getIntExtra("topicId", 0);
        loadingDialog = new LoadingDialog(TopicDetailActivity.this);
        loadingDialog.setCanceledOnTouchOutside(false);
        titleTextView = findViewById(R.id.titleTextView);
        xRefreshView = findViewById(R.id.xRefreshView);
        xRefreshView.setPullLoadEnable(true); // 允许加载更多
        xRefreshView.setPinnedTime(1000);
        xRefreshView.setPinnedTime(0);
        xRefreshView.setMoveForHorizontal(true);
        xRefreshView.setXRefreshViewListener(new XRefreshView.SimpleXRefreshListener() {
            @Override
            public void onRefresh(boolean isPullDown) {
                super.onRefresh(isPullDown);
                page = 1;
                requestData();
                requestData("1");
            }
            @Override
            public void onLoadMore(boolean isSilence) {
                super.onLoadMore(isSilence);
                page++;
                requestData();
                requestData("0");
            }
        });
        recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                // TODO by hyg 发布功能
                if (newState == RecyclerView.SCROLL_STATE_IDLE) {
                    chatPublishIcon.setVisibility(View.VISIBLE);
                    if (isFirst) {
                        chatPublishTips.setVisibility(View.VISIBLE);
                    }
                } else if (newState == RecyclerView.SCREEN_STATE_ON) {
                    chatPublishIcon.setVisibility(View.GONE);
                    if (isFirst) {
                        chatPublishTips.setVisibility(View.GONE);
                    }
                }
            }
            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
            }
        });
        recyclerView.setLayoutManager(staggeredGridLayoutManager);
        recyclerView.setAdapter(topicDetailAdapter);
        recyclerView.addItemDecoration(new TopicDetailAdapter.ContentViewDecoration());
        topicDetailAdapter.setOnRecyclerItemClickListener(new RecyclerItemTypeClickListener() {
            @Override
            public void onItemClickListener(int position, int index) {
            }
        });
        topicDetailAdapter.setChooseTopicSortInterface(new TopicDetailAdapter.ChooseTopicSortInterface() {
            @Override
            public void chooseTopicSort(int s) {
                sort = s;
                page = 1;
                requestData();
                requestData("1");
            }
        });
        chatPublishTips = findViewById(R.id.chatPublishTips);
        chatPublishIcon = findViewById(R.id.chatPublishIcon);
        chatPublishIcon.setOnClickListener(this);
        String clickedUserPublishTopic = ProfileManager.getInstance().getClickedUserPublishTopic(getApplicationContext());
        if (TextUtils.isEmpty(clickedUserPublishTopic)) {
            isFirst = true;
            chatPublishTips.setVisibility(View.VISIBLE);
        } else {
            chatPublishTips.setVisibility(View.GONE);
        }
    }
    private void initListener() {
            case R.id.shareTextView: // 右上角分享功能
                shareInfo();
                break;
            case R.id.chatPublishIcon: // 发布功能
                if (MainApplication.isLogin()) {
                    loginSign();
                } else {
                    startActivity(new Intent(getApplicationContext().getApplicationContext(), LoginActivity.class));
                    ToastUtil.showToast(getApplicationContext().getApplicationContext(), "请先登录", Toast.LENGTH_SHORT);
                }
                break;
        }
    }
        // TODO by hyg share information
    }
    private void requestData() {
    // 服务器签名验证
    private void loginSign() {
        String url = MainApplication.urlNew + "/topic/sign.do";
        final Map<String, String> map = new HashMap<>();
        map.put("fileNames", "android");
        map.put("targetType", ChatRecommendBean.TARGET_TYPE_IMAGE_TEXT + "");
        CommonParams.addCommonParams(map);
        loadingDialog.show();
        OkHttpUtils.post().params(map).url(url).build().connTimeOut(6000).readTimeOut(6000).execute(new StringCallback() {
            @Override
            public void onError(Call call, Exception e) {
                loadingDialog.dismiss();
                ToastUtil.showToast(getApplicationContext(), e.getMessage(), Toast.LENGTH_SHORT);
            }
            @Override
            public void onResponse(String response) {
                loadingDialog.dismiss();
                String code = JsonUtils.getKeyResult(response, "code");
                String desc = JsonUtils.getKeyResult(response, "desc");
                if ("1000".equals(code)) {
                    chatPublishTips.setVisibility(View.GONE);
                    ProfileManager.getInstance().setClickedUserPublishTopic(getApplicationContext(), "label");
                    isFirst = false;
                    startActivityForResult(new Intent(getApplicationContext(), PublishItemsActivity.class), CLICK_PUBLISH_BTN_TOPIC);
                } else if ("8010".equals(code)) {
                    startActivity(new Intent(getApplicationContext(), LoginActivity.class));
                    ToastUtil.showToast(getApplicationContext(), desc, Toast.LENGTH_LONG);
                } else {
                    ToastUtil.showToast(getApplicationContext(), desc, Toast.LENGTH_SHORT);
                }
            }
        });
    }
    private void requestData(String init) {
        String url = MainApplication.urlNew + "/topic/homepage.do";
        Map<String, String> map = new HashMap<>();
        map.put("topicId", topicId + "");
        map.put("sort", sort + "");              //   1:最新发布 2:最后回复 3:最热
        map.put("init", "1");                   //   0:只返回话题下内容列表 1:返回话题名等信息
        map.put("init", init);                   //   0:只返回话题下内容列表 1:返回话题名等信息
        map.put("page", page + "");
        map.put("limit", "20");
        CommonParams.addCommonParams(map);
                    HomePageBean homePageBean = (HomePageBean) JsonUtils.parseToObjectBean(data, HomePageBean.class);
                    if (page == 1) {
                        xRefreshView.stopRefresh();
                        xRefreshView.setLoadComplete(false);
                        topicDetailAdapter.setHeaderData(homePageBean.topicVo);
                        topicDetailAdapter.setContentData(homePageBean.list);
                        if (homePageBean.list.size() == 0) {
                            topicDetailAdapter.setFooterData(true);
                        } else {
                            topicDetailAdapter.setFooterData(false);
                        }
                    } else {
                        if (homePageBean.list.size() == 0) {
                            topicDetailAdapter.setFooterData(true);
                            xRefreshView.setLoadComplete(true);
                        } else {
                            topicDetailAdapter.addContentData(homePageBean.list);
                        }
                        xRefreshView.stopLoadMore();
                    }
                } else {

app/src/main/java/com/electric/chargingpile/adapter/TopicDetailAdapter.java

import android.app.Activity;
import android.content.Context;
import android.graphics.Rect;
import android.support.constraint.ConstraintLayout;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import com.electric.chargingpile.iview.RecyclerItemTypeClickListener;
import com.electric.chargingpile.util.CircleTransform;
import com.electric.chargingpile.util.CommonParams;
import com.electric.chargingpile.util.DensityUtil;
import com.electric.chargingpile.util.ImageDisplayUtils;
import com.electric.chargingpile.util.JsonUtils;
import com.electric.chargingpile.util.ScreenUtils;
import com.electric.chargingpile.util.ToastUtil;
import com.electric.chargingpile.view.SortTopicPopWindow;
import com.squareup.picasso.Picasso;
import com.zhy.http.okhttp.OkHttpUtils;
import com.zhy.http.okhttp.callback.StringCallback;
import org.w3c.dom.Text;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
    private static final String TAG = "TopicDetailAdapter";
    public static final int TOPIC_DETAIL_HEADER = 1;
    public static final int TOPIC_DETAIL_CONTENT = 2;
    public static final int TOPIC_DETAIL_FOOTER = 3;
    private int sort = 1;
    private Context context;
    private Activity activity;
    private HomePageBean.HomePageTopicBean topicDetailBean;
    private RecyclerItemTypeClickListener onRecyclerItemClickListener;
    private ChooseTopicSortInterface chooseTopicSortInterface;
    private final int screenWidth;
    private final int screenHeight;
    private final int statusHeight;
    private final int headerHeight;
    private int itemWidth;
    private boolean showFooter = false;
    public TopicDetailAdapter(Context context, Activity activity) {
        this.context = context;
        this.activity = activity;
        this.layoutInflater = LayoutInflater.from(context);
        beanLab = TopicDetailBeanLab.get(context);
        screenWidth = ScreenUtils.getScreenWidth(context);
        screenHeight = ScreenUtils.getScreenHeight(context);
        statusHeight = ScreenUtils.getStatusHeight(context);
        headerHeight = DensityUtil.dip2px(context, 260);
        itemWidth = (screenWidth - DensityUtil.dip2px(context, 10 * 2)) / 2;
    }
    @Override
                itemView = layoutInflater.inflate(R.layout.activity_chat_content, parent, false);
                viewHolder = new ContentViewHolder(itemView);
                break;
            case TOPIC_DETAIL_FOOTER:
                itemView = layoutInflater.inflate(R.layout.activity_chat_footer, parent, false);
                viewHolder = new FooterViewHolder(itemView);
                break;
        }
        return viewHolder;
    }
    @Override
    public void onBindViewHolder(IViewHolder viewHolder, int position) {
        switch (viewHolder.getItemViewType()) {
        switch (getItemViewType(position)) {
            case TOPIC_DETAIL_HEADER:
                bindHeaderViewHolder(viewHolder, position);
                break;
            case TOPIC_DETAIL_CONTENT:
                bindContentViewHolder(viewHolder, position);
                break;
            case TOPIC_DETAIL_FOOTER:
                bindFooterViewHolder(viewHolder, position);
                break;
        }
    }
    @Override
    public int getItemCount() {
        return beanLab.beans().size() + 1;
        return beanLab.beans().size() + 1 + 1;
    }
    @Override
    public int getItemViewType(int position) {
        return position == 0 ? TOPIC_DETAIL_HEADER : TOPIC_DETAIL_CONTENT;
        if (position == 0) {
            return TOPIC_DETAIL_HEADER;
        } else if (position == getItemCount() - 1) {
            return TOPIC_DETAIL_FOOTER;
        } else {
            return TOPIC_DETAIL_CONTENT;
        }
    }
    private void bindHeaderViewHolder(IViewHolder viewHolder, int position) {
                                sortPopWindow.dismiss();
                                headerViewHolder.sortTextView.setText("最新发布");
                                headerViewHolder.chooseTopicSort(sort);
//                                page = 1;
//                                requestData();
                                break;
                            case R.id.tv_2:
                                sort = 2;
                                sortPopWindow.dismiss();
                                headerViewHolder.sortTextView.setText("最后回复");
                                headerViewHolder.chooseTopicSort(sort);
//                                page = 1;
//                                requestData();
                                break;
                            case R.id.tv_3:
                                sort = 3;
                                sortPopWindow.dismiss();
                                headerViewHolder.sortTextView.setText("最热");
                                headerViewHolder.chooseTopicSort(sort);
//                                page = 1;
//                                requestData();
                                break;
                        }
                    }
        final ChatRecommendBean bean = beans.get(position - 1);
        ContentViewHolder contentViewHolder = (ContentViewHolder) viewHolder;
        ConstraintLayout.LayoutParams coverImageParams = (ConstraintLayout.LayoutParams) contentViewHolder.coverImage.getLayoutParams();
        coverImageParams.width = itemWidth;
        if (bean.coverImgW == 0 || bean.coverImgH == 0) {
            coverImageParams.height = (int) (itemWidth * 16f / 9f);
        } else {
            if ((float) bean.coverImgH / bean.coverImgW > 16f / 9f) {
                coverImageParams.height = (int) (itemWidth * 16f / 9f);
            } else {
                coverImageParams.height = (int) ((float) itemWidth * bean.coverImgH / bean.coverImgW);
            }
        }
        contentViewHolder.coverImage.setLayoutParams(coverImageParams);
        ImageDisplayUtils.dispalyImg(context, bean.coverImgUrl, contentViewHolder.coverImage);
        contentViewHolder.videoIcon.setVisibility(bean.targetType == ChatRecommendBean.TARGET_TYPE_VIDEO ? View.VISIBLE : View.GONE);
        contentViewHolder.videoIcon.setVisibility(bean.targetType == ChatRecommendBean.TARGET_TYPE_VIDEO ? View.VISIBLE : View.GONE);
        contentViewHolder.isTop.setVisibility(bean.isTop == 1 ? View.VISIBLE : View.GONE);
        contentViewHolder.title.setText(bean.title);
        contentViewHolder.authorInfo.setOnClickListener(new View.OnClickListener() {
        });
    }
    private void bindFooterViewHolder(IViewHolder viewHolder, final int position) {
        FooterViewHolder footerViewHolder = (FooterViewHolder) viewHolder;
        StaggeredGridLayoutManager.LayoutParams layoutParams = (StaggeredGridLayoutManager.LayoutParams) footerViewHolder.footerContainer.getLayoutParams();
        layoutParams.setFullSpan(true);
        footerViewHolder.footerContainer.setVisibility(showFooter ? View.VISIBLE : View.GONE);
        ConstraintLayout.LayoutParams params = (ConstraintLayout.LayoutParams) footerViewHolder.footerView.getLayoutParams();
        if (TopicDetailBeanLab.get(context).beans().size() == 0) {
            footerViewHolder.footTextView.setText("还没有任何内容哦，快来抢沙发~");
            params.height = DensityUtil.dip2px(context, (screenHeight - headerHeight - statusHeight) / 4);
            params.bottomMargin = 0;
        } else {
            footerViewHolder.footTextView.setText("已经全部加载完毕");
            params.height = DensityUtil.dip2px(context, 20);
            params.bottomMargin = DensityUtil.dip2px(context, 10);
        }
        if (showFooter == false) {
            params.height = 0;
            params.bottomMargin = DensityUtil.dip2px(context, 10);
        }
        footerViewHolder.footTextView.setLayoutParams(params);
    }
    private void showAuthorInfo(int position) {
        // TODO
    }
    public void addContentData(ArrayList<ChatRecommendBean> beans) {
        int startSize = beanLab.beans().size();
        beanLab.add(beans);
        int endSize = beanLab.beans().size();
        notifyItemRangeChanged(startSize, endSize);
        notifyItemRangeChanged(startSize, beans.size());
    }
    public void setHeaderData(HomePageBean.HomePageTopicBean bean) {
        topicDetailBean = bean;
    }
    public void setFooterData(Boolean showFooter) {
        this.showFooter = showFooter;
        notifyItemRangeChanged(getItemCount() - 1, 1);
    }
    class HeaderViewHolder extends IViewHolder {
        ConstraintLayout topicDetailHeader;
        ImageView headImage;
                chooseTopicSortInterface.chooseTopicSort(sort);
            }
        }
    }
    public class ContentViewHolder extends IViewHolder {
        }
    }
    public class FooterViewHolder extends IViewHolder {
        ConstraintLayout footerContainer;
        ConstraintLayout footerView;
        TextView footTextView;
        public FooterViewHolder(View itemView) {
            super(itemView);
            footerContainer = itemView.findViewById(R.id.footerContainer);
            footerView = itemView.findViewById(R.id.footerView);
            footTextView = itemView.findViewById(R.id.footTextView);
        }
    }
    public static class ContentViewDecoration extends RecyclerView.ItemDecoration {
        private StaggeredGridLayoutManager.LayoutParams layoutParams;
        @Override
        public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
            layoutParams = (StaggeredGridLayoutManager.LayoutParams) view.getLayoutParams();
            int position = parent.getChildAdapterPosition(view);
            if (position > 0) {
                if (layoutParams.getSpanIndex() % 2 == 0) {
                    outRect.left = DensityUtil.dip2px(view.getContext(), 15);
                    outRect.right = DensityUtil.dip2px(view.getContext(), 5);
                } else {
                    outRect.right = DensityUtil.dip2px(view.getContext(), 15);
                    outRect.left = DensityUtil.dip2px(view.getContext(), 5);
                }
            }
        }
    }
    public void setOnRecyclerItemClickListener(RecyclerItemTypeClickListener onRecyclerItemClickListener) {
        this.onRecyclerItemClickListener = onRecyclerItemClickListener;
    }

app/src/main/java/com/electric/chargingpile/application/MainApplication.java

    public static String firstPoint = "";
    public static Boolean firstSsyd;
    public static String password = "";
//    public static String url = "http://59.110.68.162";// 充电桩测试环境
    public static String url = "http://cdz.evcharge.cc";// 充电桩正式环境
//    public static String urlNew = "http://123.56.67.7:83/api/0200";// 一电测试环境
    public static String urlNew = "https://api.touchev.com:83/api/0200";// 一电正式环境
    public static String pic_url = "http://cdz.evcharge.cc/zhannew/uploadfile/";
    public static String url = "http://59.110.68.162";// 充电桩测试环境
//    public static String url = "http://cdz.evcharge.cc";// 充电桩正式环境
    public static String urlNew = "http://123.56.67.7:83/api/0200";// 一电测试环境
//    public static String urlNew = "https://api.touchev.com:83/api/0200";// 一电正式环境
    public static String pic_url = "http:/s/cdz.evcharge.cc/zhannew/uploadfile/";
    //	public static String url = "https://cdz.d1ev.com";
    public static String build_flag = "0";
    public static String support = "0";

app/src/main/java/com/electric/chargingpile/manager/ProfileManager.java

    private static final String KEY_DATA_UPTIME = "key_data_uptime";
    private static final String KEY_FIND_DATE = "key_find_date";
    private static final String KEY_ADD_COME_FIRST = "key_add_come_first";
    private static final String KEY_CLICKED_USER_PUBLISH_TOPIC = "key_clicked_user_publish_topic";
    private static final String KEY_CLICKED_USER_PUBLISH_ROLE = "key_clicked_user_publish_role";
    private static ProfileManager instance;
                .putString(KEY_ADD_COME_FIRST, content);
    }
    public void setClickedUserPublishTopic(Context context, String content) {
        PreferenceManager.getInstance(context)
                .putString(KEY_CLICKED_USER_PUBLISH_TOPIC, content);
    }
    public void setClickedUserPublishRole(Context context, String content) {
        PreferenceManager.getInstance(context)
                .putString(KEY_CLICKED_USER_PUBLISH_ROLE, content);
                "");
    }
    public String getClickedUserPublishTopic(Context context) {
        return PreferenceManager.getInstance(context).getString(KEY_CLICKED_USER_PUBLISH_TOPIC,
                "");
    }
    public String getClickedUserPublishRole(Context context) {
        return PreferenceManager.getInstance(context).getString(KEY_CLICKED_USER_PUBLISH_ROLE,
                "");

app/src/main/res/layout/activity_chat_content.xml

        <ImageView
            android:id="@+id/coverImage"
            android:layout_width="168dp"
            android:layout_height="147dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="信息图片"
            android:scaleType="fitXY"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:id="@+id/title"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="10dp"
            android:layout_marginRight="10dp"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            android:paddingTop="10dp"
            android:ellipsize="end"
            android:maxLines="2"
            android:maxLines="3"
            android:textColor="#222222"
            android:textSize="15sp"
            app:layout_constraintEnd_toEndOf="parent"
        <android.support.constraint.ConstraintLayout
            android:layout_width="0dp"
            android:layout_height="48dp"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/title">
                android:id="@+id/authorInfo"
                android:layout_width="wrap_content"
                android:layout_height="0dp"
                android:paddingLeft="10dp"
                android:paddingRight="10dp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintTop_toTopOf="parent">
                android:id="@+id/likeInfo"
                android:layout_width="wrap_content"
                android:layout_height="0dp"
                android:paddingLeft="10dp"
                android:paddingRight="10dp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toTopOf="parent">

app/src/main/res/layout/activity_chat_footer.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/footerContainer"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <android.support.constraint.ConstraintLayout
        android:id="@+id/footerView"
        android:layout_width="match_parent"
        android:layout_height="20dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">
        <TextView
            android:id="@+id/footTextView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:paddingLeft="30dp"
            android:paddingRight="30dp"
            android:textColor="#555555"
            android:textSize="14sp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            tools:text="已经全部加载完毕" />
    </android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>

app/src/main/res/layout/activity_topic_detail.xml

            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scrollbars="vertical" />
    </com.andview.refreshview.XRefreshView>
    <ImageView

zxing/build.gradle

    })
    compile 'pub.devrel:easypermissions:0.2.0'
    compile 'com.google.code.gson:gson:2.2.4'
    compile 'com.github.bumptech.glide:glide:4.1.1'
//    compile 'com.github.bumptech.glide:glide:4.1.1'
    compile 'com.github.bumptech.glide:glide:4.2.0'
    compile 'com.google.zxing:core:+'
    compile 'com.google.zxing:android-core:+'
    compile 'com.blankj:utilcode:1.9.8'