OkHttp工具类+RecyclerView+点击事件+Glide显示图片

  compile 'com.squareup.okhttp3:okhttp:3.8.1'    compile 'com.google.code.gson:gson:2.8.1'    compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'    compile 'com.github.bumptech.glide:glide:3.8.0'

Http工具类：

public class Http {    public void getdata(String url, final NetDataCallback netDataCallback) {        //初始化一个 OkHttpClient 并且设置连接和读取超时时间        OkHttpClient okhttp = new OkHttpClient.Builder()                .connectTimeout(10, TimeUnit.SECONDS)                .readTimeout(20, TimeUnit.SECONDS)                .build();        //构造一个Request对象        Request request = new Request.Builder().url(url).build();        //通过request的对象去构造得到一个Call对象        Call call=okhttp.newCall(request);        //调用的是call.enqueue，将call加入调度队列，然后等待任务执行完成，我们在Callback中即可得到结果。        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                netDataCallback.err(500,e.getMessage());            }            @Override            public void onResponse(Call call, Response response) throws IOException {                String  s = response.body().string();                netDataCallback.callback(s);            }        });    }}

public interface NetDataCallback {    void callback(String str);    void err(int code,String s);}

适配器：

public class Myadapter extends RecyclerView.Adapter{    private View view;    private Context mcontext;    private ArrayList<News.StoriesBean> mlist=new ArrayList<>();    private OnItemClickListener mClickListener;    public Myadapter(Context mcontext,ArrayList<News.StoriesBean> list) {        this.mcontext = mcontext;        this.mlist=list;    }    @Override    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(mcontext).inflate(R.layout.item, null);        return new ViewHolder(view,mClickListener);    }    @Override    public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {        ViewHolder viewholder= (ViewHolder)holder;        viewholder.textview.setText(""+mlist.get(position).getTitle());        Glide.with(mcontext).load(getItem(position).getImages().get(0)).into(viewholder.ima);        //只给标题设置的点击事件     /*   viewholder.textview.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(mcontext, mlist.get(position).getTitle(), Toast.LENGTH_SHORT).show();            }        });*/    }    //手写的重置数据的方法    public void setdata(ArrayList<News.StoriesBean> list){        if (list!=null&&list.size()>0){            mlist.addAll(list);        }    }    //手写的获得视图的方法    public News.StoriesBean getItem(int position){        return mlist.get(position);    };    @Override    public int getItemCount() {        return mlist.size();    }    //自定义的方法    public void setOnItemClickListener(OnItemClickListener listener){        this.mClickListener=listener;    }    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{        private OnItemClickListener mListener;// 声明自定义的接口        private TextView textview;        private ImageView ima;        //把定义的接口作为参数放到方法内        public ViewHolder(View itemView,OnItemClickListener  listener) {            super(itemView);            mListener=listener;            //给item设置点击事件            itemView.setOnClickListener(this);            textview=(TextView)itemView.findViewById(R.id.title_item);            ima=(ImageView)itemView.findViewById(R.id.image_item);        }        @Override        public void onClick(View v) {            // getpostion()为Viewholder自带的一个方法，用来获取RecyclerView当前的位置，将此作为参数，传出去            mListener.onItemClick(v,getPosition());        }    }    //手写的一个接口    public interface OnItemClickListener {        public void onItemClick(View view, int postion);    }}

主类：

public class MainActivity extends AppCompatActivity implements NetDataCallback {    private RecyclerView mrv;    private String url="http://news-at.zhihu.com/api";    private Myadapter md;    private Http http;    private ArrayList<News.StoriesBean> mlist=new ArrayList<>();    public Handler hand=new Handler(){        @Override        public void handleMessage(Message msg) {            Gson gson=new Gson();            super.handleMessage(msg);            if (msg.what==1){                News news = gson.fromJson(msg.obj.toString(), News.class);                // mlist=(ArrayList<NewsData.DataBean>) newsData.getData();                mlist=(ArrayList<News.StoriesBean>) news.getStories();                md.setdata((ArrayList<News.StoriesBean>) mlist);                md.notifyDataSetChanged();            }        }    };@Overrideprotected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mrv=(RecyclerView)findViewById(R.id.recy);        initdata();        mrv.setLayoutManager(new LinearLayoutManager(this));        md=new Myadapter(this,mlist);        mrv.setAdapter(md);        //RecyclerView条目的点击事件        md.setOnItemClickListener(new Myadapter.OnItemClickListener() {@Overridepublic void onItemClick(View view, int postion) {        Toast.makeText(MainActivity.this, mlist.get(postion).getTitle(), Toast.LENGTH_SHORT).show();        }        });        }private void initdata() {        Http http=new Http();        http.getdata(url,this);        }@Overridepublic void callback(String str) {        Message msg = Message.obtain();        msg.what=1;        msg.obj=str;        hand.sendMessage(msg);        }@Overridepublic void err(int code, String s) {        }        }