仿饿了么_MVP

DataCall

public interface DataCall<T> {
    void success(T data);

    void fail(Result result);
}

CartModel

public class CartModel {

    public static Result goodsList() {
        String resultString = HttpUtils.get(\"http://www.zhaoapi.cn/product/getCarts?uid=71\");
        try {
            Gson gson = new Gson();

            Type type = new TypeToken<Result<List<Shop>>>() {
            }.getType();

            Result result = gson.fromJson(resultString, type);
//        Result<List<Goods>> result = new Result<>();
//        result.setCode(0);
//        List<Goods> list = new ArrayList<>();
//        for (int i = 0; i < 30; i++) {
//            Goods goods = new Goods();
//            goods.setImages(\"\");
//            goods.set (\"手机\"+i);
//            list.add(goods);
//        }
//        result.setData(list);

            return result;
        } catch (Exception e) {

        }
        Result result = new Result();
        result.setCode(-1);
        result.setMsg(\"数据解析异常\");
        return result;
    }

}

HttpUtils

public class HttpUtils {
    public static String get(String urlString){

        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(new LoggingInterceptor())//日志拦截器
                .connectTimeout(10, TimeUnit.SECONDS)//连接超时
                .readTimeout(10,TimeUnit.SECONDS)//读取超时
                .writeTimeout(10,TimeUnit.SECONDS)//写入超时
                .build();

        Request request = new Request.Builder().url(urlString).get().build();

        try {
            Response response = okHttpClient.newCall(request).execute();
            String result = response.body().string();
            Log.i(\"dt\",\"请求结果：\"+result);
            return result;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return \"\";
    }

    public static String postForm(String url,String[] name,String[] value){

        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(new LoggingInterceptor())//日志拦截器
                .connectTimeout(10, TimeUnit.SECONDS)//连接超时
                .readTimeout(10,TimeUnit.SECONDS)//读取超时
                .writeTimeout(10,TimeUnit.SECONDS)//写入超时
                .build();

        FormBody.Builder formBuild = new FormBody.Builder();
        for (int i = 0; i < name.length; i++) {
            formBuild.add(name[i],value[i]);
        }

        Request request = new Request.Builder().url(url).post(formBuild.build()).build();

        try {
            Response response = okHttpClient.newCall(request).execute();

            String result = response.body().string();
            Log.i(\"dt\",result);
            return result;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return \"\";
    }

    public static String postFile(String url,String[] name,String[] value,String fileParamName,File file){

        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(new LoggingInterceptor())//日志拦截器
                .connectTimeout(10, TimeUnit.SECONDS)//连接超时
                .readTimeout(10,TimeUnit.SECONDS)//读取超时
                .writeTimeout(10,TimeUnit.SECONDS)//写入超时
                .build();

        MultipartBody.Builder requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
        if(file != null){
            // MediaType.parse() 里面是上传的文件类型。
            RequestBody body = RequestBody.create(MediaType.parse(\"image/*\"), file);
            String filename = file.getName();
            // 参数分别为: 文件参数名 ，文件名称 ， RequestBody
            requestBody.addFormDataPart(fileParamName, \"jpg\", body);
        }
        if (name!=null) {
            for (int i = 0; i < name.length; i++) {
                requestBody.addFormDataPart(name[i], value[i]);
            }
        }

        Request request = new Request.Builder().url(url).post(requestBody.build()).build();

        try {
            Response response = okHttpClient.newCall(request).execute();
            if (response.code()==200) {
                return response.body().string();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return \"\";
    }

    public static String postJson(String url,String jsonString){

        OkHttpClient okHttpClient = new OkHttpClient();

        RequestBody requestBody = RequestBody.create(MediaType.parse(\"application/json\"),jsonString);

        Request request = new Request.Builder().url(url).post(requestBody).build();

        try {
            Response response = okHttpClient.newCall(request).execute();

            return response.body().string();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return \"\";
    }
}

Presenter

public abstract class  presenter {
    DataCall dataCall;


    public  presenter(DataCall dataCall) {
        this.dataCall = dataCall;

    }

    Handler mHandler = new Handler(Looper.getMainLooper()) {
        @Override
        public void handleMessage(Message msg) {

            Result result = (Result) msg.obj;
            if (result.getCode() == 0) {
                dataCall.success(result.getData());
            } else {
                dataCall.fail(result);
            }
        }
    };


    public void requestData(final  ... args) {
        new Thread(new Runnable() {
            @Override
            public void run() {


                Message message = mHandler.obtainMessage();
                message.obj = getData(args);
                mHandler.sendMessage(message);

            }
        }).start();
    }

    protected abstract Result getData( ... args);

    public void unBindCall() {
        this.dataCall = null;
    }
}

CartPresenter

public class CartPresenter extends  presenter {
    public CartPresenter(DataCall dataCall) {
        super(dataCall);
    }

    @Override
    protected Result getData( ... args) {
        Result result = CartModel.goodsList();//调用网络请求获取数据
        return result;
    }
}

CarApp

public class CarApp extends Application {
    private static CarApp instance;
    private SharedPreferences mSharedPreferences;

    @Override
    public void onCreate() {
        super.onCreate();
        instance = this;
        mSharedPreferences = getSharedPreferences(\"application\",
                Context.MODE_PRIVATE);
   /* JPushInterface.setDebugMode(true);
    JPushInterface.init(this);  */        // 初始化 JPush
    }

    public static CarApp getInstance() {
        return instance;
    }

    public SharedPreferences getShare() {
        return mSharedPreferences;
    }
}

LoggingInterceptor

public class LoggingInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        //这个chain里面包含了request和response，所以你要什么都可以从这里拿
        Request request = chain.request();

        long t1 = System.nanoTime();//请求发起的时间
        Log.i(\"dt\",String.format(\"发送请求 %s on %s%n%s\",
                request.url(), chain.connection(), request.headers()));

        Response response = chain.proceed(request);

        long t2 = System.nanoTime();//收到响应的时间

        //这里不能直接使用response.body().string()的方式输出日志
        //因为response.body().string()之后，response中的流会被关闭，程序会报错，我们需要创建出一
        //个新的response给应用层处理
        ResponseBody responseBody = response.peekBody(1024 * 1024);

        Log.i(\"dt\",String.format(\"接收响应: [%s] %n返回json:【%s】 %.1fms%n%s\",
                response.request().url(),
                responseBody.string(),
                (t2 - t1) / 1e6d,
                response.headers()));

        return response;
    }
}