Okhttp+RecyclerView组合(可用)

最新推荐文章于 2020-02-07 20:27:26 发布

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最新推荐文章于 2020-02-07 20:27:26 发布

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分类专栏：移动开发

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本文介绍了如何将Okhttp与RecyclerView结合使用，展示列表数据。通过设置ViewHolder和初始化ImageLoader，实现在每个列表项中加载图片。

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public class SS extends AppCompatActivity {
    private String url="http://qiang.mogujie.com/jsonp/actGroupItem/1?callback=jQuery21104587953138117029_1504264031748&groupKey=11q&_=1504264031749 ";
    private RecyclerView rlv;
    private EditText ss;
    private List<Recycler_view.DataBean.ItemListBean> li;
    private Button btn;

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

    private void init() {
        rlv = (RecyclerView) findViewById(R.id.rlv);
        rv();
        GridLayoutManager g=new GridLayoutManager(SS.this,2);
        rlv.setLayoutManager(g);
        btn = (Button) findViewById(R.id.btn);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                LinearLayoutManager manager=new LinearLayoutManager(SS.this);
                rlv.setLayoutManager(manager);
            }
        });
        ss = (EditText) findViewById(R.id.ss);
    }

    class MyRlvadapter extends RecyclerView.Adapter<MyRlvadapter.MyViewHolder>{

        @Override
        public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
            View view=View.inflate(SS.this,R.layout.recycler_item,null);
            MyViewHolder holder=new MyViewHolder(view);
            return holder;
        }

        @Override
        public void onBindViewHolder(MyViewHolder holder, int position) {

holder.tv.setText(li.get(position).getTitle());

//imageloader 首先初始化

ImageLoaderConfiguration cf=ImageLoaderConfiguration.createDefault(SS.this);

ImageLoader.getInstance().init(cf);

//第一个参数是list集合中的图片第二个参数为自己在item中定义的控件

            ImageLoader.getInstance().displayImage(li.get(position).getImage(),holder.img);
        }

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

        public class MyViewHolder extends RecyclerView.ViewHolder{
            TextView tv;
            ImageView img;
            public MyViewHolder(View itemView) {
                super(itemView);
                tv=itemView.findViewById(R.id.tv);
                img=itemView.findViewById(R.id.recycle_img);
            }
        }
    }
    private void rv()
    {
        OkHttpUtils.getInstance().doGet(url, new OnUiCallback() {
            @Override
            public void onFailed(Call call, IOException e) {
            }
            @Override
            public void onSuccess(String result) throws IOException {
               //对数据进行切割
                String substring = result.substring(41, result.length() - 1);
                System.out.print("tttqwerttgfd"+substring);
                getJson1(substring);
            }
            private void getJson1(String result) {
                Gson gs=new Gson();
                Recycler_view rec=gs.fromJson(result,Recycler_view.class);
                li = rec.getData().getItemList();
                MyRlvadapter adapter=new MyRlvadapter();
                rlv.setAdapter(adapter);
            }
        });
    }
}