完成话题详情页数据交互逻辑

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

package com.electric.chargingpile.activity;
import android.content.Context;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.blankj.utilcode.util.EmptyUtils;
import com.electric.chargingpile.R;
import com.electric.chargingpile.adapter.CommentTopicAdapter;
import com.electric.chargingpile.application.MainApplication;
import com.electric.chargingpile.data.TopicBean;
import com.electric.chargingpile.util.BarColorUtil;
import com.electric.chargingpile.util.JsonUtils;
import com.electric.chargingpile.util.LoadingDialog;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.zhy.http.okhttp.OkHttpUtils;
import com.zhy.http.okhttp.callback.StringCallback;
import java.util.ArrayList;
import okhttp3.Call;
public class SelectTopicActivity  extends AppCompatActivity {
    private RecyclerView mRecyclerView;
    private TextView noDataText;
    private CommentTopicAdapter mAdapter;
    private LoadingDialog dialog = null;
    private final Gson mGson =new Gson();
    public static   final int REESULT_CODE =112;
    @Override
    protected void onCreate(@Nullable @org.jetbrains.annotations.Nullable Bundle savedInstanceState) {
        setContentView(R.layout.activity_slelect_topic);
        BarColorUtil.initStatusBarColor(this);
        initView();
        requestTopicList();
    }
    private void initView() {
        dialog=new LoadingDialog(this);
        dialog.setCanceledOnTouchOutside(false);
        findViewById(R.id.iv_back).setOnClickListener(v->{
            finish();
        });
        noDataText = findViewById(R.id.noDataText);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        mAdapter = new CommentTopicAdapter();
        mAdapter.setListener(pos -> {
            TopicBean bean = mAdapter.getDatas().get(pos);
            Intent intent=new Intent();
            intent.putExtra("topicBean",mGson.toJson(bean));
            setResult(REESULT_CODE,intent);//2. setResult（）方法，用于携带数据进行回传
            finish();
        });
        mRecyclerView.setAdapter(mAdapter);
        noDataText.setVisibility(View.GONE);
        mRecyclerView.setVisibility(View.VISIBLE);
    }
    public static void actionStart(Context context){
        Intent intent = new Intent(context, SelectTopicActivity.class);
        context.startActivity(intent);
    public void requestTopicList(){
        String url = MainApplication.url + "/zhannew/basic/web/index.php/theme/getlist";
        OkHttpUtils.get().url(url).build().connTimeOut(5000).readTimeOut(5000).execute(new StringCallback() {
            @Override
            public void onError(Call call, Exception e) {
                Toast.makeText(getApplicationContext(), "网络不给力，请检查网络状态", Toast.LENGTH_SHORT).show();
            }
            @Override
            public void onResponse(String response) {
                if (null != response) {
                    String rtnCode = JsonUtils.getKeyResult(response, "rtnCode");
                    if (EmptyUtils.isNotEmpty(rtnCode)&& rtnCode .equals("01")) {
                        String data = JsonUtils.getKeyResult(response, "data");
                        ArrayList<TopicBean> list = mGson.fromJson(data, new TypeToken<ArrayList<TopicBean>>() {
                        }.getType());
                        if (list!=null && list.size()>0){
                            mAdapter.setDatas(list);
                            mRecyclerView.setVisibility(View.VISIBLE);
                            noDataText.setVisibility(View.GONE);
                        }else{
                            mRecyclerView.setVisibility(View.GONE);
                            noDataText.setVisibility(View.VISIBLE);
                        }
                    }
                }
            }
        });
    }
    public static void actionStart(Activity activity,int requestCode){
        Intent intent = new Intent(activity, SelectTopicActivity.class);
        activity.startActivityForResult(intent,requestCode);
    }
}

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

import com.electric.chargingpile.data.CommentsBean;
import com.electric.chargingpile.data.MyOtto;
import com.electric.chargingpile.data.RObject;
import com.electric.chargingpile.data.TopicBean;
import com.electric.chargingpile.engine.GlideEngine;
import com.electric.chargingpile.util.BarColorUtil;
import com.electric.chargingpile.util.Bimp;
import com.electric.chargingpile.view.REditText;
import com.electric.chargingpile.view.RatingBarView;
import com.google.gson.Gson;
import com.luck.picture.lib.PictureSelector;
import com.luck.picture.lib.animators.AnimationType;
import com.luck.picture.lib.config.PictureConfig;
    private static final int PHOTO_REQUEST_CAMERA = 1;
    private static final int PHOTO_REQUEST_GALLERY = 2;
    private static final int PHOTO_REQUEST_CUT = 3;
    private static final int REQUEST_TOPIC_CODE = 102;
    public static android.view.animation.Animation animation;
    public static TextView textView;
    public static RelativeLayout relativeLayout;
    private InputMethodManager imm = null;
    private static final int RC_ALBUM_PERM = 123;
    public static final int REQUEST_CODE_CHOOSE = 336;
    private final Gson mGson=new Gson();
    Handler handler = new Handler() {
        public void handleMessage(Message msg) {
            switch (msg.what) {
        });
        topicText.setOnClickListener(v->{
            //跳转至话题页
            SelectTopicActivity.actionStart(this);
            SelectTopicActivity.actionStart(this,REQUEST_TOPIC_CODE);
        });
    }
                    insertImagesSync(data);
                }
            }
        }else if  (requestCode==REQUEST_TOPIC_CODE && resultCode == SelectTopicActivity.REESULT_CODE){
            String name=data.getStringExtra("topicBean");
            TopicBean bean = mGson.fromJson(name, TopicBean.class);
            topicText.setText(bean.getMeg());
        }
    }
    /**

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

import androidx.recyclerview.widget.RecyclerView;
import com.electric.chargingpile.R;
import com.electric.chargingpile.data.TopicBean;
import org.jetbrains.annotations.NotNull;
import org.w3c.dom.Text;
import java.util.ArrayList;
public class CommentTopicAdapter extends RecyclerView.Adapter<CommentTopicAdapter.ViewHolder> {
    private OnItemClickListener mListener;
    private ArrayList<TopicBean> mDatas=new ArrayList<>();
    public ArrayList<TopicBean> getDatas() {
        return mDatas;
    }
    public void setDatas(ArrayList<TopicBean> mDatas) {
        this.mDatas = mDatas;
        notifyDataSetChanged();
    }
    public OnItemClickListener getListener() {
        return mListener;
    @Override
    public void onBindViewHolder(@NonNull @NotNull ViewHolder holder, int position) {
        holder.title.setText("标题"+position);
        TopicBean data = mDatas.get(position);
        holder.title.setText(data.getMeg());
        holder.participateText.setText("内容够"+position+"参与");
        holder.onlookersText.setText("标题"+position+"围观");
        holder.itemView.setOnClickListener(v->{
    @Override
    public int getItemCount() {
        return 20;
        return mDatas.size();
    }
    public static class ViewHolder extends RecyclerView.ViewHolder {

app/src/main/java/com/electric/chargingpile/data/TopicBean.java

package com.electric.chargingpile.data;
public class TopicBean {
    private String id;
    private String meg;
    private String icon;
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getMeg() {
        return meg;
    }
    public void setMeg(String meg) {
        this.meg = meg;
    }
    public String getIcon() {
        return icon;
    }
    public void setIcon(String icon) {
        this.icon = icon;
    }
}

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

            <TextView
                android:paddingEnd="11dp"
                android:paddingStart="11dp"
                android:paddingBottom="6dp"
                android:paddingTop="6dp"
                android:layout_marginBottom="13dp"
                android:id="@+id/topicText"
                android:background="@drawable/bg_topic_tab"
                android:layout_width="66dp"
                android:layout_height="28dp"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="15dp"
                android:gravity="center"
                android:text="╋  话题"