Okhttp和Gson解析

本文介绍如何使用OkHttp进行网络GET请求,并通过回调处理返回的数据。详细展示了如何解析JSON响应并将其显示在Android应用的RecyclerView中,包括适配器的定制。

摘要生成于 C知道 ,由 DeepSeek-R1 满血版支持, 前往体验 >


导依赖
     compile 'com.squareup.okhttp3:okhttp:3.8.1'

创建单例类
public class okhttp {
     private static okhttp okhttp;
     private OkHttpClient okHttpClient;
     private okhttp(){
          okHttpClient = new OkHttpClient.Builder().build();
     }
     public static synchronized okhttp getInstance(){
          if (okhttp ==null) {
                okhttp = new okhttp();
          }

          return okhttp;
     }
     public void sendGet(String url, Callback callback){
          Request build = new Request.Builder().url(url).build();
          Call call = okHttpClient.newCall(build);
          call.enqueue(callback);
     }
}

Activity
public class MainActivity extends AppCompatActivity {

    private RecyclerView rlv_rec;
    private List<bean.ResultBean.DatalistBean> list;
    private List<String> pagerlist;

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

        initokhttp();
    }

    private void initokhttp() {
        okhttp.getInstance().sendGet("http:/", new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                final String string = response.body().string();
                runOnUiThread(new Runnable() {


                    private com.jiyun.defaultuser0.demo_95.bean bean;

                    @Override
                    public void run() {
                        Log.e("TAG", string);
                        Gson gson = new Gson();
                        bean = gson.fromJson(string, bean.class);
                        list = bean.getResult().getDatalist();
                        pagerlist = bean.getResult().getPagerlist();
                        StaggeredGridLayoutManager manager = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
                        rlv_rec.setLayoutManager(manager);
                        RecylerviewAdapter adapter = new RecylerviewAdapter(MainActivity.this, list);
                        rlv_rec.setAdapter(adapter);
                        RecyclerViewHeader viewHeader = RecyclerViewHeader.fromXml(MainActivity.this, R.layout.buju1);
                        FlyBanner fb_fll = viewHeader.findViewById(R.id.fb_fll);
                        fb_fll.setImagesUrl(bean.getResult().getPagerlist());
                        viewHeader.attachTo(rlv_rec);
                    }
                });
            }
        });
    }

    private void initView() {
        rlv_rec = (RecyclerView) findViewById(R.id.rlv_rec);


    }
}

Recylerview适配器
public class RecylerviewAdapter extends RecyclerView.Adapter<RecylerviewAdapter.ViewHolder> {

    private List<bean.ResultBean.DatalistBean> list;
    private MainActivity mainActivity;
    public RecylerviewAdapter(MainActivity mainActivity, List<bean.ResultBean.DatalistBean> list) {
        this.list=list;
        this.mainActivity=mainActivity;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.buju, parent, false);
        ViewHolder holder = new ViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Glide.with(mainActivity).load(list.get(position).getImageurl()).into(holder.iv_img);
        holder.tv_text.setText(list.get(position).getName());


    }

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

    public class ViewHolder extends RecyclerView.ViewHolder {
        ImageView iv_img;
        TextView tv_text;
        public ViewHolder(View itemView) {
            super(itemView);
             iv_img = itemView.findViewById(R.id.iv_imgg);
             tv_text = itemView.findViewById(R.id.tv_text);
        }
    }
}



                
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值