Android Okhttp工具类的封装

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//OKhttp工具类

public class Httputils {    private OkHttpClient client;    private CallbackData callbackdata;    Handler handler=new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            switch (msg.what){                case 0:                    //  String str=(String) msg.obj;                    callbackdata.success(msg.obj);            }        }    };    //请求网络    public <T>void getloadDemo(String url,final CallbackData callback,final Class<T> tClass){        this.callbackdata = callback;        client=new OkHttpClient.Builder()                .readTimeout(3000, TimeUnit.MILLISECONDS)                .writeTimeout(3000, TimeUnit.MILLISECONDS)                .connectTimeout(3000, TimeUnit.MILLISECONDS)                .build();        Request request = new Request.Builder().url(url).build();        okhttp3.Call call = client.newCall(request);        call.enqueue(new Callback() {           @Override           public void onFailure(okhttp3.Call call, IOException e) {               callback.error(500,e.getMessage());           }           @Override           public void onResponse(okhttp3.Call call, Response response) throws IOException {               Message message = handler.obtainMessage();               message.what=0;               Gson gson=new Gson();               T t=gson.fromJson(response.body().string(),tClass);               message.obj=t;               handler.sendMessage(message);           }       });    }}

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//所需的接口

public interface CallbackData<T> {    void success(T str);    void error(int code, String message);}
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//Presenter类的封装

public class PresenterBean <T> {    //找Model拿到请求数据 Presenter和Model的交互需要接口    private final Httputils httpUtils;    private ImainView mimainView;    public PresenterBean(ImainView imainView) {       this.mimainView=imainView;        httpUtils=new Httputils();    }    //将PresenterData抽成一个类 简化后的结果    public void loadDataFromServer(String url, Class<T> t,final int code){        httpUtils.getloadDemo(url, new CallbackData<T>() {            @Override            public void success(T str) {                  mimainView.successCallback(str,code);            }            @Override            public void error(int code, String message) {               mimainView.errorCallback(code,message);            }        },t);    }}
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public interface ImainView <T>{    void successCallback(T str,int code);    void errorCallback(int code, String message);}
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//RecyclerView自定义点击事件

public class RecyclerLiserner {    //点击监听  参数为view 和 position    public interface onItemClickListener{        void onItemClick(View v, int position);    }    //长按监听    public interface onItemLongClickListener{        void onLongClick(View v, int positener);    }}
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public class LiebiaoAdapter extends RecyclerView.Adapter<LiebiaoAdapter.Viewholder>implements View.OnClickListener{    private Context context;    private List<Liebiao.DatasBean.ClassListBean>mData=new ArrayList<>();    private Viewholder viewholder;    private Boolean isClicks=true;    private LayoutInflater mInflater;    private  RecyclerLiserner.onItemClickListener listener;    public LiebiaoAdapter(Context context) {        this.context = context;    }    public void setData(List<Liebiao.DatasBean.ClassListBean> data){        if (data!=null){            mData.addAll(data);        }    }    //提供设置接口回调的方法    public  void onItemClickListener(RecyclerLiserner.onItemClickListener listener){        this.listener=listener;    }    //因为ViewHolder我们可以拿到每个Item的根布局，所以如果我们为根布局设置单独的OnClick监听    // 并将其开放给Adapter，    // 那 不就可以在组装RecyclerView时就能够设置ItemClickListener，    // 只不过这个Listener不是设置到RecyclerView上而是设置到Adapter。    @Override    public Viewholder onCreateViewHolder(ViewGroup parent, int viewType){        View view = View.inflate(context, R.layout.liebiaotu, null);        view.setOnClickListener(this);        viewholder = new Viewholder(view);        return viewholder;    }    @Override    public void onBindViewHolder(Viewholder holder, final int position){        Viewholder myHolder = (Viewholder) holder;        myHolder.itemView.setTag(position);        viewholder.liebiaziti.setText(mData.get(position).getGc_name());        Glide.with(context).load("http://192.168.56.1/data/upload/mobile/category/05015382063902705.png")                .error(R.drawable.ic_action_back)                .placeholder(R.drawable.ic_item_goods)                .into(viewholder.liebiaotu);        System.out.println("myHolder = " + mData.get(position).getImage());        //x.image().bind(viewholder.liebiaotu,mData.get(position).getImage());    }    @Override    public int getItemCount() {        return mData.size();    }    @Override    public void onClick(View v) {        if (listener!=null){            listener.onItemClick(v, (Integer) v.getTag());        }    }    class Viewholder extends RecyclerView.ViewHolder{       private final ImageView liebiaotu;       private TextView liebiaziti;       public Viewholder(View itemView) {          super(itemView);            liebiaotu=   (ImageView) itemView.findViewById(R.id.liebiaotu);            liebiaziti= (TextView) itemView.findViewById(R.id.liebiaziti);       }   }}

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  //为recyclerView设置布局控制器           LinearLayoutManager manager=new LinearLayoutManager(this, LinearLayout.VERTICAL,false);        recyclerView.setLayoutManager(manager);       //网格视图        GridLayoutManager gridLayoutManager=new GridLayoutManager(this,3,GridLayoutManager.VERTICAL,false);        recyclerView.setLayoutManager(gridLayoutManager);     //瀑布流        StaggeredGridLayoutManager staggeredGridLayoutManager=new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL);        recyclerView.setLayoutManager(staggeredGridLayoutManager);

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