Android RecyclerView中用fresco展示圆角图片,点击查看详情(或原生解析)

1.设置条目点击事件

2.在第二页面接收值

完整代码:

-----------------MainActivity-----------------

package com.example.earl.lianxilianxi;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import com.facebook.drawee.backends.pipeline.Fresco;
import com.google.gson.Gson;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {


    private ArrayList<ResultBeans.ResultBean.DataBean> list = new ArrayList<>();
    private RecyclerView recyclerView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Fresco.initialize(this);
        setContentView(R.layout.activity_main);

        recyclerView = findViewById(R.id.rcv);
        //设置布局管理器
        recyclerView.setLayoutManager(new LinearLayoutManager(this));


    }

    public void zhanshi(View view) {

        //创建OKHttpClient对象
        OkHttpUtils okHttpUitls = new OkHttpUtils();
        okHttpUitls.get(Constants.URL);
        okHttpUitls.setOnOKHttpGetListener(new OkHttpUtils.OKHttpGetListener() {
            @Override
            public void error(String error) {
                Toast.makeText(MainActivity.this, error, Toast.LENGTH_SHORT).show();
            }

            @Override
            public void success(String json) {
//                try {
//                    //实例化JSONObject对象
//                    JSONObject jsonObject = new JSONObject(json);
//                    Log.d("data2", jsonObject.toString());
//                    //得到对象result
//                    JSONObject result = jsonObject.getJSONObject("result");
//                    //得到数组list
//                    JSONArray jsonArray = result.getJSONArray("data");
//                    //遍历数组
//                    for (int i = 0; i < jsonArray.length(); i++) {
//                        JSONObject object = jsonArray.getJSONObject(i);
//                        String thumbnail_pic_s = object.optString("thumbnail_pic_s");
//                        String title = object.optString("title");
//                        Bean bean = new Bean(thumbnail_pic_s, title);
//                        list.add(bean);
//                    }
//
//                } catch (JSONException e) {
//                    e.printStackTrace();
//                }
                Gson gson = new Gson();
                ResultBeans resultBeans = gson.fromJson(json, ResultBeans.class);
                List<ResultBeans.ResultBean.DataBean> data = resultBeans.getResult().getData();
                list.addAll(data);
                //设置适配器
                MyAdapter myAdapter = new MyAdapter(MainActivity.this, list);
                recyclerView.setAdapter(myAdapter);
                Toast.makeText(MainActivity.this,"+++", Toast.LENGTH_SHORT).show();
            }
        });
    }
}

------------------Main2Activity-------------------

package com.example.earl.lianxilianxi;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;

public class Main2Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        ImageView img = findViewById(R.id.big_img);
        TextView tv=findViewById(R.id.title_tv);
        Intent intent = getIntent();
        String thumbnail_pic_s02 = intent.getStringExtra("thumbnail_pic_s02");
        String title = intent.getStringExtra("title");
        Log.d("title",title+"------------------------");
        Glide.with(Main2Activity.this).load(thumbnail_pic_s02).into(img);
        tv.setText(title.toString());
    }
}

-----------------MyAdapter---------------

package com.example.earl.lianxilianxi;

import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.facebook.drawee.view.SimpleDraweeView;
import java.util.ArrayList;


public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {

    Context context;
    ArrayList<ResultBeans.ResultBean.DataBean> list;

    public MyAdapter(Context context, ArrayList<ResultBeans.ResultBean.DataBean> list) {
        this.context = context;
        this.list = list;
    }

    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = View.inflate(context, R.layout.lv_item, null);
        MyViewHolder myViewHolder = new MyViewHolder(view);

        return myViewHolder;
    }

    @Override
    public void onBindViewHolder(final MyViewHolder holder,final int position) {
        holder.textView.setText(list.get(position).getTitle());
//        Glide.with(context).load(list.get(position).getImg()).into(holder.imageView);
        Uri imguri = Uri.parse(list.get(position).getThumbnail_pic_s());
        holder.imageView.setImageURI(imguri);
        Log.d("ni",list.get(position).getThumbnail_pic_s());

        holder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(context, Main2Activity.class);
                intent.putExtra("thumbnail_pic_s02",list.get(position).getThumbnail_pic_s02());
                intent.putExtra("title",list.get(position).getTitle());
                context.startActivity(intent);
            }
        });
    }

    @Override
    public int getItemCount() {
        return list.size();
    }


    class MyViewHolder extends RecyclerView.ViewHolder {
        private SimpleDraweeView imageView;
        private TextView textView;

        public MyViewHolder(View itemView) {
            super(itemView);
            this.imageView = itemView.findViewById(R.id.img);
            this.textView = itemView.findViewById(R.id.tv);
        }

        public SimpleDraweeView getImageView() {
            return imageView;
        }

        public void setImageView(SimpleDraweeView imageView) {
            this.imageView = imageView;
        }

        public TextView getTextView() {
            return textView;
        }

        public void setTextView(TextView textView) {
            this.textView = textView;
        }
    }
}

------------------Constants----------------

package com.example.earl.lianxilianxi;




public class Constants {
//    private static String key = "2f41498b35e69877fc56dc96776e5d1f";
    public static String URL ="http://v.juhe.cn/toutiao/index?type=top&key=2f41498b35e69877fc56dc96776e5d1f";
}

------------------OkHttpUtils------------------

package com.example.earl.lianxilianxi;

import android.os.Handler;
import android.os.Message;
import android.util.Log;
import java.io.IOException;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;


public class  OkHttpUtils {
    private OKHttpGetListener onOKHttpGetListener;
    private MyHandler myHandler = new MyHandler();

    // /get
    public void get(String url){
        OkHttpClient client = new OkHttpClient();
        //创建请求对象
        Request request = new Request.Builder().url(url).build();
        //创建Call请求队列
        //请求都是放到一个队列里面的
        Call call = client.newCall(request);

        Log.d("TAG1", "get() returned: " + call+"------------");
        //开始请求
        call.enqueue(new Callback() {
            //失败，成功的方法都是在子线程里面，不能直接更新UI
            @Override
            public void onFailure(Call call, IOException e) {
                Message message = myHandler.obtainMessage();
                message.obj = "请求失败";
                message.what = 0;
                myHandler.sendMessage(message);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                Message message = myHandler.obtainMessage();
                String json = response.body().string();
                message.obj = json;
                message.what = 1;
                myHandler.sendMessage(message);
            }
        });
    }
    //使用接口回到，将数据返回
    public interface OKHttpGetListener{
        void error(String error);
        void success(String json);
    }
    //给外部调用的方法
    public void setOnOKHttpGetListener(OKHttpGetListener onOKHttpGetListener){
        this.onOKHttpGetListener = onOKHttpGetListener;
    }
    //使用Handler，将数据在主线程返回
    class MyHandler extends Handler {
        @Override
        public void handleMessage(Message msg) {
            int w = msg.what;
            Log.d("TAG2", "handleMessage() returned: " +msg );
            if (w ==0){
                String error = (String) msg.obj;
                onOKHttpGetListener.error(error);
            }
            if (w==1){
                String json = (String) msg.obj;
                onOKHttpGetListener.success(json);
            }
        }
    }
}

-------------------Bean-------------------(使用原生解析式会用)

package com.example.earl.lianxilianxi;


public class Bean {
   private String img;
   private String title;

    public Bean(String img, String title) {
        this.img = img;
        this.title = title;
    }

    public String getImg() {
        return img;
    }

    public void setImg(String img) {
        this.img = img;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }
}

-------------------ResultBeans---------------------

自己用快捷键生成  Alt+S

------------------activity_main.xml---------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:fresco="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.earl.lianxilianxi.MainActivity">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="展示数据"
        android:onClick="zhanshi"/>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/rcv"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        fresco:roundAsCircle="true"></android.support.v7.widget.RecyclerView>


</LinearLayout>

-------------------lv_item.xml----------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:fresco="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">

    <com.facebook.drawee.view.SimpleDraweeView
        android:id="@+id/img"
        android:layout_width="80dp"
        android:layout_height="80dp"
        fresco:roundAsCircle="true"/>

    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
</LinearLayout>

------------------activity_main2.xml--------------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.earl.lianxilianxi.Main2Activity">

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="350dp"
        android:id="@+id/big_img"/>
    <TextView
        android:layout_width="match_parent"
        android:layout_height="30dp"
        android:id="@+id/title_tv"/>
</LinearLayout>